Tools/SCViewer
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add first elements

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This commit is contained in:
Eyck Jentzsch 2021-12-02 16:26:47 +01:00
parent 806000c4cc
commit 5a372d0f90
32 changed files with 3490 additions and 132 deletions
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plugins/com.minres.scviewer.database.ui.swt/icons/bullet_left.png Normal file
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plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/HorizontalSpinner.java Normal file
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plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/WaveformSlider.java Normal file
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package com.minres.scviewer.database.ui.swt.internal;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Slider;
import org.eclipse.wb.swt.SWTResourceManager;
public class WaveformSlider extends Composite {
Slider slider;
Color buttonColor;
public WaveformSlider(Composite parent, int style) {
super(parent, style);
GridLayout gridLayout = new GridLayout(3, false);
gridLayout.horizontalSpacing = 0;
gridLayout.verticalSpacing = 0;
gridLayout.marginWidth = 0;
gridLayout.marginHeight = 0;
setLayout(gridLayout);
buttonColor = getDisplay().getSystemColor(SWT.COLOR_DARK_GRAY);
Button scrlLeft = new Button(this, /*SWT.BORDER |*/ SWT.FLAT | SWT.CENTER);
scrlLeft.setFont(SWTResourceManager.getFont("Sans", 5, SWT.NORMAL));
GridData gd_scrlLeft = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
gd_scrlLeft.heightHint = 16;
gd_scrlLeft.widthHint = 16;
scrlLeft.setLayoutData(gd_scrlLeft);
scrlLeft.addPaintListener(paintEvent -> {
GC gc = paintEvent.gc;
gc.setBackground(buttonColor);
gc.setForeground(buttonColor);
int left = paintEvent.x+4;
int top = paintEvent.y+5;
int width=paintEvent.width-11;
int height= paintEvent.height-10;
int[] triangle = new int[] {
left, top+height/2,
left+width, top,
left+width, top+height};
gc.fillPolygon( triangle );
gc.drawPolygon( triangle );
});
scrlLeft.addSelectionListener(new SelectionAdapter() {
public void widgetSelected (SelectionEvent e){
slider.setSelection(slider.getSelection()-10);
}
});
scrlLeft.redraw();
slider = new Slider(this, SWT.NONE);
slider.setBackground(SWTResourceManager.getColor(SWT.COLOR_WIDGET_BACKGROUND));
GridData gd_canvas = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1);
gd_canvas.heightHint = 16;
slider.setLayoutData(gd_canvas);
Button scrlRight = new Button(this, /*SWT.BORDER |*/ SWT.FLAT | SWT.CENTER);
scrlRight.setAlignment(SWT.CENTER);
GridData gd_scrlRight = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
gd_scrlRight.heightHint = 16;
gd_scrlRight.widthHint = 16;
scrlRight.setLayoutData(gd_scrlRight);
scrlRight.addPaintListener(paintEvent -> {
GC gc = paintEvent.gc;
gc.setBackground(buttonColor);
gc.setForeground(buttonColor);
int left = paintEvent.x+6;
int top = paintEvent.y+5;
int width=paintEvent.width-11;
int height= paintEvent.height-10;
int[] triangle = new int[] {
left, top,
left+width, top+height/2,
left, top+height};
gc.fillPolygon( triangle );
gc.drawPolygon( triangle );
});
scrlRight.addSelectionListener(new SelectionAdapter() {
public void widgetSelected (SelectionEvent e){
slider.setSelection(slider.getSelection()+10);
}
});
redraw();
}
}

22
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/WaveformView.java
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@ -54,6 +54,7 @@ import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
@ -61,6 +62,7 @@ import org.eclipse.swt.graphics.TextLayout;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
@ -69,6 +71,7 @@ import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.ScrollBar;
import org.eclipse.swt.widgets.Slider;
import org.eclipse.swt.widgets.Widget;
import org.eclipse.wb.swt.SWTResourceManager;
@ -91,6 +94,7 @@ import com.minres.scviewer.database.ui.IWaveformStyleProvider;
import com.minres.scviewer.database.ui.IWaveformView;
import com.minres.scviewer.database.ui.IWaveformZoom;
import com.minres.scviewer.database.ui.TrackEntry;
import com.minres.scviewer.database.ui.swt.sb.FlatScrollBar;
public class WaveformView implements IWaveformView {
@ -330,8 +334,22 @@ public class WaveformView implements IWaveformView {
rightSash.setBackground(SWTResourceManager.getColor(SWT.COLOR_GRAY));
Composite valuePane = new Composite(rightSash, SWT.NONE);
waveformCanvas = new WaveformCanvas(rightSash, SWT.NONE, styleProvider);
Composite waveformPane = new Composite(rightSash, SWT.NONE);
GridLayout gl_waveformPane = new GridLayout(1, false);
gl_waveformPane.verticalSpacing = 0;
gl_waveformPane.marginWidth = 0;
gl_waveformPane.marginHeight = 0;
waveformPane.setLayout(gl_waveformPane);
waveformCanvas = new WaveformCanvas(waveformPane, SWT.NONE | SWT.V_SCROLL /*| SWT.H_SCROLL*/, styleProvider);
waveformCanvas.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
Composite timeSliderPane = new WaveformSlider(waveformPane, SWT.NONE);
GridData gd_timeSlider = new GridData(SWT.FILL, SWT.BOTTOM, false, false, 1, 1);
gd_timeSlider.heightHint = 18;
timeSliderPane.setLayoutData(gd_timeSlider);
// create the name pane
createTextPane(namePane, "Name");

108
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/ZoomingScrollbar.java Normal file
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@ -0,0 +1,108 @@
package com.minres.scviewer.database.ui.swt.internal;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.layout.GridData;
import org.eclipse.wb.swt.ResourceManager;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.widgets.Slider;
import org.eclipse.wb.swt.SWTResourceManager;
import org.eclipse.swt.widgets.Scale;
import org.eclipse.jface.fieldassist.ControlDecoration;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.FillLayout;
public class ZoomingScrollbar extends Composite {
/**
* Create the composite.
* @param parent
* @param style
*/
public ZoomingScrollbar(Composite parent, int style) {
super(parent, SWT.BORDER | SWT.NO_FOCUS);
GridLayout gridLayout = new GridLayout(3, false);
gridLayout.horizontalSpacing = 0;
gridLayout.verticalSpacing = 0;
gridLayout.marginWidth = 0;
gridLayout.marginHeight = 0;
setLayout(gridLayout);
Button scrlLeft = new Button(this, SWT.BORDER | SWT.FLAT | SWT.CENTER);
scrlLeft.setFont(SWTResourceManager.getFont("Sans", 5, SWT.NORMAL));
GridData gd_scrlLeft = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
gd_scrlLeft.heightHint = 16;
gd_scrlLeft.widthHint = 16;
scrlLeft.setLayoutData(gd_scrlLeft);
Slider slider = new Slider(this, SWT.NONE);
slider.setBackground(SWTResourceManager.getColor(SWT.COLOR_WIDGET_BACKGROUND));
GridData gd_canvas = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1);
gd_canvas.heightHint = 16;
slider.setLayoutData(gd_canvas);
Button scrlRight = new Button(this, SWT.BORDER | SWT.FLAT | SWT.CENTER);
scrlRight.setAlignment(SWT.CENTER);
GridData gd_scrlRight = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
gd_scrlRight.heightHint = 16;
gd_scrlRight.widthHint = 16;
scrlRight.setLayoutData(gd_scrlRight);
SashForm sashForm = new SashForm(this, SWT.NONE);
sashForm.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 3, 1));
Composite composite = new Composite(sashForm, SWT.NONE);
composite.setBackground(SWTResourceManager.getColor(SWT.COLOR_MAGENTA));
composite.setLayout(null);
Composite wavformPane = new Composite(sashForm, SWT.BORDER | SWT.NO_FOCUS);
wavformPane.setBackground(SWTResourceManager.getColor(SWT.COLOR_BLUE));
GridLayout gl_wavformPane = new GridLayout(1, false);
gl_wavformPane.verticalSpacing = 0;
gl_wavformPane.marginWidth = 0;
gl_wavformPane.marginHeight = 0;
wavformPane.setLayout(gl_wavformPane);
Composite waveformCanvas = new Composite(wavformPane, SWT.NONE);
waveformCanvas.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
Composite timeSlider = new Composite(wavformPane, SWT.BORDER | SWT.NO_FOCUS);
GridLayout gl_timeSlider = new GridLayout(3, false);
gl_timeSlider.marginWidth = 0;
gl_timeSlider.verticalSpacing = 0;
gl_timeSlider.marginHeight = 0;
gl_timeSlider.horizontalSpacing = 0;
timeSlider.setLayout(gl_timeSlider);
GridData gd_timeSlider = new GridData(SWT.FILL, SWT.BOTTOM, false, false, 1, 1);
gd_timeSlider.heightHint = 16;
timeSlider.setLayoutData(gd_timeSlider);
Button buttonLeft = new Button(timeSlider, SWT.BORDER | SWT.FLAT | SWT.CENTER);
buttonLeft.setFont(SWTResourceManager.getFont("Sans", 5, SWT.NORMAL));
GridData gd_buttonLeft = new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1);
gd_buttonLeft.widthHint = 10;
gd_buttonLeft.heightHint = 16;
buttonLeft.setLayoutData(gd_buttonLeft);
Slider slider2 = new Slider(timeSlider, SWT.NONE);
slider2.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, true, 1, 1));
Button buttonRight = new Button(timeSlider, SWT.FLAT | SWT.CENTER);
buttonRight.setFont(SWTResourceManager.getFont("Sans", 5, SWT.NORMAL));
GridData gd_buttonRight = new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1);
gd_buttonRight.widthHint = 10;
gd_buttonRight.heightHint = 16;
buttonRight.setLayoutData(gd_buttonRight);
sashForm.setWeights(new int[] {1, 1});
}
@Override
protected void checkSubclass() {
// Disable the check that prevents subclassing of SWT components
}
}

18
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ActionScheduler.java Normal file
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@ -0,0 +1,18 @@
package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.widgets.Display;
public class ActionScheduler {
private final Display display;
private final Runnable action;
public ActionScheduler( Display display, Runnable action ) {
this.display = display;
this.action = action;
}
public void schedule( int delay ) {
display.timerExec( delay, action );
}
}

45
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ButtonClick.java Normal file
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@ -0,0 +1,45 @@
package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Control;
public class ButtonClick {
public static final int LEFT_BUTTON = 1;
private boolean armed;
public boolean isArmed() {
return armed;
}
public void arm( MouseEvent event ) {
if( event.button == LEFT_BUTTON ) {
armed = true;
}
}
public void disarm() {
armed = false;
}
public void trigger( MouseEvent event, Runnable action ) {
try {
doTrigger( event, action );
} finally {
disarm();
}
}
private void doTrigger( MouseEvent event, Runnable action ) {
if( armed && inRange( event ) ) {
action.run();
}
}
private static boolean inRange( MouseEvent event ) {
Point size = ( ( Control )event.widget ).getSize();
return event.x >= 0 && event.x <= size.x && event.y >= 0 && event.y <= size.y;
}
}

98
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ClickControl.java Normal file
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@ -0,0 +1,98 @@
package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.events.MouseTrackListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
class ClickControl extends ControlAdapter implements ViewComponent, MouseDownActionTimer.TimerAction, MouseListener, MouseTrackListener {
private final MouseDownActionTimer mouseDownActionTimer;
private final ClickAction clickAction;
private final ButtonClick buttonClick;
private final Label control;
private final ImageUpdate imageUpdate;
public interface ClickAction extends Runnable {
void setCoordinates( int x, int y );
}
ClickControl( Composite parent, ClickAction clickAction, int maxExtension ) {
this.control = new Label( parent, SWT.NONE );
this.imageUpdate = new ImageUpdate( control, maxExtension );
this.buttonClick = new ButtonClick();
this.mouseDownActionTimer = new MouseDownActionTimer( this, buttonClick, control.getDisplay() );
this.clickAction = clickAction;
this.control.addMouseTrackListener( this );
this.control.addMouseListener( this );
this.control.addControlListener( this );
}
@Override
public void controlResized( ControlEvent event ) {
imageUpdate.update();
}
@Override
public Label getControl() {
return control;
}
@Override
public void mouseDown( MouseEvent event ) {
buttonClick.arm( event );
clickAction.setCoordinates( event.x, event.y );
mouseDownActionTimer.activate();
}
@Override
public void mouseUp( MouseEvent event ) {
buttonClick.trigger( event, clickAction );
}
@Override
public void run() {
clickAction.run();
}
@Override
public boolean isEnabled() {
return true;
}
@Override
public void mouseExit( MouseEvent event ) {
buttonClick.disarm();
}
void setForeground( Color color ) {
imageUpdate.setForeground( color );
}
Color getForeground() {
return imageUpdate.getForeground();
}
void setBackground( Color color ) {
imageUpdate.setBackground( color );
}
Color getBackground() {
return imageUpdate.getBackground();
}
@Override
public void mouseEnter( MouseEvent event ) {}
@Override
public void mouseHover( MouseEvent event ) {}
@Override
public void mouseDoubleClick( MouseEvent event ) {}
}

105
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ComponentDistribution.java Normal file
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@ -0,0 +1,105 @@
package com.minres.scviewer.database.ui.swt.sb;
import static java.lang.Math.max;
import java.math.BigDecimal;
import java.math.RoundingMode;
class ComponentDistribution {
private static final int MIN_DRAG_LENGTH = 17;
final int upFastLength;
final int dragStart;
final int dragLength;
final int downFastStart;
final int downFastLength;
final int downStart;
final int buttonLen;
ComponentDistribution( int buttonLen, int len, int range, int pos, int thumb ) {
int slideLen = slideLen( buttonLen, len );
int relDragLen = relDragLen( slideLen, range, thumb );
int minDragLength = max( MIN_DRAG_LENGTH, buttonLen );
int interval = interval( range, relDragLen, minDragLength );
this.dragLength = dragLen( minDragLength, relDragLen );
this.upFastLength = upFastLen( minDragLength, interval, pos, slideLen, relDragLen, dragLength );
this.downStart = downStart( buttonLen, len );
this.downFastStart = downFastStart( buttonLen, upFastLength, dragLength );
this.dragStart = dragStart( buttonLen, upFastLength );
this.downFastLength = downFastLen( minDragLength, interval, pos, slideLen, relDragLen, dragLength, upFastLength );
this.buttonLen = buttonLen;
}
private static int slideLen( int buttonLen, int len ) {
return len - buttonLen * 2;
}
private static int relDragLen( int slideLen, int range, int thumb ) {
return divide( slideLen * thumb, range );
}
private static int interval( int range, int relDragLen, int minDragLength ) {
int result = range;
if( useMinDragLen( minDragLength, relDragLen ) ) {
result += minDragLength - relDragLen / 2;
}
return result;
}
private static int dragLen( int buttonLen, int relDragLen ) {
return max( relDragLen, buttonLen );
}
private static int upFastLen( int buttonLen, int range, int pos, int slideLen, int relDragLen, int dragLen ) {
int result = slideLen * pos / range;
if( useMinDragLen( buttonLen, relDragLen ) ) {
result -= divide( ( dragLen - relDragLen ) * pos, range );
}
return result;
}
private static int downStart( int buttonLen, int len ) {
return len - buttonLen;
}
private static int downFastStart( int buttonLen, int upFastLength, int dragLength ) {
return buttonLen + upFastLength + dragLength;
}
private static int dragStart( int buttonLen, int upFastLen ) {
return buttonLen + upFastLen;
}
private static int downFastLen(
int buttonLen, int range, int pos, int slideLen, int relDragLen, int dragLen, int upFastLen )
{
int result = divide( slideLen * ( range - pos ), range ) - dragLen;
if( useMinDragLen( buttonLen, relDragLen ) ) {
result += divide( ( dragLen - relDragLen ) * pos, range );
}
return adjustDownFastLen( result, slideLen, dragLen, upFastLen );
}
private static boolean useMinDragLen( int buttonLen, int relDragLen ) {
return relDragLen < buttonLen;
}
static int divide( int dividend, int divisor ) {
BigDecimal bigDividend = new BigDecimal( dividend );
BigDecimal bigDivisor = new BigDecimal( divisor );
return bigDividend .divide( bigDivisor, 0, RoundingMode.HALF_EVEN ) .intValue();
}
private static int adjustDownFastLen( int tentative, int slideLen, int dragLen, int upFastLen ) {
// TODO [fappel]: Without this there is a flickering of the downFast label of one pixel.
// Check whether this can be resolved by better rounding or whatsoever.
int result = tentative;
if( slideLen < upFastLen + dragLen + result ) {
result--;
} else if( slideLen > upFastLen + dragLen + result ) {
result++;
}
return result;
}
}

24
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Decrementer.java Normal file
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@ -0,0 +1,24 @@
package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.SWT;
import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
class Decrementer implements ClickAction {
private final FlatScrollBar scrollBar;
Decrementer( FlatScrollBar scrollBar ) {
this.scrollBar = scrollBar;
}
@Override
public void run() {
int selection = scrollBar.getSelection() - scrollBar.getIncrement();
scrollBar.setSelectionInternal( selection, SWT.ARROW_UP );
}
@Override
public void setCoordinates( int x, int y ) {
}
}

203
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Direction.java Normal file
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@ -0,0 +1,203 @@
package com.minres.scviewer.database.ui.swt.sb;
import static com.minres.scviewer.database.ui.swt.sb.FlatScrollBar.BAR_BREADTH;
import static java.lang.Math.max;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
enum Direction {
HORIZONTAL( SWT.HORIZONTAL ) {
@Override
protected void layout( FlatScrollBar scrollBar, int buttonLength ) {
ComponentDistribution distribution = calculateComponentDistribution( scrollBar, buttonLength );
Rectangle[] componentBounds = calculateComponentBounds( distribution, scrollBar );
applyComponentBounds( scrollBar, componentBounds );
}
private ComponentDistribution calculateComponentDistribution( FlatScrollBar scrollBar, int buttonLength ) {
return calculateComponentDistribution( scrollBar, buttonLength, getControlBounds( scrollBar ).width );
}
private Rectangle[] calculateComponentBounds( ComponentDistribution distribution, FlatScrollBar scrollBar ) {
int width = getControlBounds( scrollBar ).width;
int height = getControlBounds( scrollBar ).height - FlatScrollBar.BAR_BREADTH + 1;
int balance = getRoundingBalance( distribution, scrollBar );
return new Rectangle[] {
calcButtons( distribution, width, $( 0, CLEARANCE, distribution.buttonLen, height ) ),
$( distribution.buttonLen, CLEARANCE, distribution.upFastLength, height ),
calcDrag( distribution, $( distribution.dragStart, CLEARANCE, distribution.dragLength + balance, height ) ),
$( distribution.downFastStart, CLEARANCE, distribution.downFastLength - balance, height ),
calcButtons( distribution, width, $( distribution.downStart, CLEARANCE, distribution.buttonLen, height ) )
};
}
private Rectangle calcButtons( ComponentDistribution distribution, int length, Rectangle bounds ) {
Rectangle result = bounds;
if( length <= distribution.buttonLen* 2 ) {
int downStart = calcDownStartForSmallLength( bounds.x, length );
result = $( downStart, CLEARANCE, length / 2, bounds.height );
}
return result;
}
@Override
protected void setDefaultSize( Control control ) {
Point size = control.getSize();
control.setSize( size.x, FlatScrollBar.BAR_BREADTH );
}
@Override
protected Point computeSize( Composite composite, int wHint, int hHint, boolean changed ) {
int x = wHint == SWT.DEFAULT ? composite.getParent().getClientArea().width : wHint;
return new Point( x, FlatScrollBar.BAR_BREADTH );
}
@Override
protected void expand( Control control, int maxExpansion ) {
Rectangle bounds = control.getBounds();
int expand = expand( bounds.height, maxExpansion );
control.setBounds( bounds.x, bounds.y - expand, bounds.width, bounds.height + expand );
}
},
VERTICAL( SWT.VERTICAL ) {
@Override
protected void layout( FlatScrollBar scrollBar, int buttonLength ) {
ComponentDistribution calculation = calculateComponentDistribution( scrollBar, buttonLength );
applyComponentBounds( scrollBar, calculateComponentBounds( calculation, scrollBar ) );
}
private ComponentDistribution calculateComponentDistribution( FlatScrollBar scrollBar, int buttonLength ) {
return calculateComponentDistribution( scrollBar, buttonLength, getControlBounds( scrollBar ).height );
}
private Rectangle[] calculateComponentBounds( ComponentDistribution distribution, FlatScrollBar scrollBar ) {
int width = getControlBounds( scrollBar ).width - FlatScrollBar.BAR_BREADTH + 1;
int height = getControlBounds( scrollBar ).height;
int balance = getRoundingBalance( distribution, scrollBar );
return new Rectangle[] {
calculateButtons( distribution, height, $( CLEARANCE, 0, width, distribution.buttonLen ) ),
$( CLEARANCE, distribution.buttonLen, width, distribution.upFastLength ),
calcDrag( distribution, $( CLEARANCE, distribution.dragStart, width, distribution.dragLength + balance ) ),
$( CLEARANCE, distribution.downFastStart, width, distribution.downFastLength - balance ),
calculateButtons( distribution, height, $( CLEARANCE, distribution.downStart, width, distribution.buttonLen ) )
};
}
private Rectangle calculateButtons( ComponentDistribution distribution, int length, Rectangle bounds ) {
Rectangle result = bounds;
if( length <= distribution.buttonLen * 2 ) {
int downStart = calcDownStartForSmallLength( bounds.y, length );
result = $( CLEARANCE, downStart, bounds.width, length / 2 );
}
return result;
}
@Override
protected void setDefaultSize( Control control ) {
Point size = control.getSize();
control.setSize( FlatScrollBar.BAR_BREADTH, size.y );
}
@Override
protected Point computeSize( Composite composite, int wHint, int hHint, boolean changed ) {
int y = hHint == SWT.DEFAULT ? composite.getParent().getClientArea().height : hHint;
return new Point( FlatScrollBar.BAR_BREADTH, y );
}
@Override
protected void expand( Control control, int maxExpansion ) {
Rectangle bounds = control.getBounds();
int expand = expand( bounds.width, maxExpansion );
control.setBounds( bounds.x - expand, bounds.y, bounds.width + expand, bounds.height );
}
};
static final Rectangle EMPTY_RECTANGLE = $( 0, 0, 0, 0 );
static final int CLEARANCE = BAR_BREADTH - 2;
private final int value;
protected abstract void layout( FlatScrollBar scrollBar, int buttonLength );
protected abstract void setDefaultSize( Control control );
protected abstract Point computeSize( Composite comp, int wHint, int hHint, boolean changed );
protected abstract void expand( Control control, int maxExpansion );
Direction( int value ) {
this.value = value;
}
public int value() {
return value;
}
private static ComponentDistribution calculateComponentDistribution(
FlatScrollBar scrollBar , int buttonLength , int length )
{
int range = scrollBar.getMaximum() - scrollBar.getMinimum();
int position = scrollBar.getSelection() - scrollBar.getMinimum();
int thumb = scrollBar.getThumb();
return new ComponentDistribution( buttonLength, length, range, position, thumb );
}
private static Rectangle getControlBounds( FlatScrollBar scrollBar ) {
return scrollBar.getClientArea();
}
private static void applyComponentBounds( FlatScrollBar scrollBar, Rectangle[] bounds ) {
scrollBar.up.getControl().setBounds( bounds[ 0 ] );
scrollBar.upFast.getControl().setBounds( bounds[ 1 ] );
scrollBar.drag.getControl().setBounds( bounds[ 2 ] );
scrollBar.downFast.getControl().setBounds( bounds[ 3 ] );
scrollBar.down.getControl().setBounds( bounds[ 4 ] );
}
// TODO [fappel]: There is a 1 pixel rounding problem at the seam of drag/downFast with down.
// Seems to work but I would prefer a better solution if possible
private static int getRoundingBalance( ComponentDistribution calculation, FlatScrollBar scrollBar ) {
int result = 0;
int maximumSelection = scrollBar.getMaximum() - scrollBar.getThumb();
if( scrollBar.getSelection() == maximumSelection && 0 != calculation.downFastLength ) {
result = 1;
}
return result;
}
private static int expand( int toExpand, int maxExpansion ) {
return max( 0, FlatScrollBar.BAR_BREADTH + maxExpansion - max( FlatScrollBar.BAR_BREADTH, toExpand ) );
}
private static Rectangle calcDrag( ComponentDistribution distribution, Rectangle bounds ) {
Rectangle result = bounds;
if( isUndercutOfDragVisibility( distribution ) ) {
result = EMPTY_RECTANGLE;
}
return result;
}
private static boolean isUndercutOfDragVisibility( ComponentDistribution distribution ) {
return distribution.dragLength + distribution.buttonLen >= distribution.downStart;
}
private static int calcDownStartForSmallLength( int position, int length ) {
int result = position;
if( isDownStartPosition( position ) ) {
result = length / 2;
}
return result;
}
private static boolean isDownStartPosition( int position ) {
return position > 0 || position < 0;
}
private static Rectangle $( int x, int y, int width, int height ) {
return new Rectangle( x, y , width , height );
}
}

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plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragControl.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.events.DragDetectEvent;
import org.eclipse.swt.events.DragDetectListener;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.events.MouseMoveListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
class DragControl
extends ControlAdapter
implements ViewComponent, DragDetectListener, MouseListener, MouseMoveListener
{
private final DragDetector dragDetector;
private final ImageUpdate imageUpdate;
private final DragAction dragAction;
private final Label control;
private Point startingPosition;
public interface DragAction {
void start();
void run( int startX, int startY, int currentX, int currentY );
void end();
}
DragControl( Composite parent, DragAction dragAction, int maxExpansion ) {
this.control = new Label( parent, SWT.NONE );
this.imageUpdate = new ImageUpdate( control, maxExpansion );
this.dragDetector = new DragDetector( control, 0 );
this.dragAction = dragAction;
initializeControl();
}
@Override
public Label getControl() {
return control;
}
@Override
public void dragDetected( DragDetectEvent event ) {
if( startingPosition != null ) {
dragAction.run( startingPosition.x, startingPosition.y, event.x, event.y );
}
dragDetector.dragHandled();
}
@Override
public void mouseDown( MouseEvent event ) {
startingPosition = new Point( event.x, event.y );
dragAction.start();
}
@Override
public void mouseUp( MouseEvent event ) {
if( startingPosition != null ) {
dragAction.end();
}
startingPosition = null;
}
@Override
public void mouseMove( MouseEvent event ) {
dragDetector.mouseMove( event );
}
@Override
public void controlResized( ControlEvent event ) {
imageUpdate.update();
}
void setForeground( Color color ) {
imageUpdate.setForeground( color );
}
Color getForeground() {
return imageUpdate.getForeground();
}
Color getBackground() {
return imageUpdate.getBackground();
}
void setBackground( Color color ) {
imageUpdate.setBackground( color );
}
private void initializeControl( ) {
control.addMouseListener( this );
control.addMouseMoveListener( this );
control.addControlListener( this );
control.addDragDetectListener( this );
}
@Override
public void mouseDoubleClick( MouseEvent event ) {}
}

60
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragDetector.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
// TODO [fappel]: This is a workaround for a problem described here:
// http://stackoverflow.com/questions/3908290/mousedown-events-are-not-delivered-until-mouseup-when-a-drag-source-is-present
// This seems to be related to https://bugs.eclipse.org/bugs/show_bug.cgi?id=328396
// which is resolved. As it did not work on my setup I adapted the workaround of the last
// stackoverflow answer.
public class DragDetector {
int lastMouseX;
int lastMouseY;
boolean dragEventGenerated;
private final Control control;
private final int sensibility;
public DragDetector( Control control, int sensibility ) {
this.control = control;
this.sensibility = sensibility;
this.control.setDragDetect( false );
}
public void mouseMove( MouseEvent e ) {
if( ( e.stateMask & SWT.BUTTON1 ) > 0 ) {
int deltaX = lastMouseX - e.x;
int deltaY = lastMouseY - e.y;
int dragDistance = deltaX * deltaX + deltaY * deltaY;
if( !dragEventGenerated && dragDistance > sensibility ) {
dragEventGenerated = true;
Event event = createDragEvent( e );
control.notifyListeners( SWT.DragDetect, event );
}
lastMouseX = e.x;
lastMouseY = e.y;
}
}
public void dragHandled() {
dragEventGenerated = false;
}
private Event createDragEvent( MouseEvent e ) {
Event event = new Event();
event.type = SWT.DragDetect;
event.display = control.getDisplay();
event.widget = control;
event.button = e.button;
event.stateMask = e.stateMask;
event.time = e.time;
event.x = e.x;
event.y = e.y;
return event;
}
}

59
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragShifter.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import static com.minres.scviewer.database.ui.swt.sb.Direction.HORIZONTAL;
import static com.minres.scviewer.database.ui.swt.sb.ShiftData.calculateSelectionRange;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import com.minres.scviewer.database.ui.swt.sb.DragControl.DragAction;
final class DragShifter implements DragAction {
private final FlatScrollBar scrollBar;
private final int buttonLength;
public DragShifter( FlatScrollBar scrollBar, int buttonLength ) {
this.scrollBar = scrollBar;
this.buttonLength = buttonLength;
}
@Override
public void start() {
scrollBar.notifyListeners( SWT.DRAG );
}
@Override
public void run( int startX, int startY, int currentX, int currentY ) {
ShiftData shiftData = newShiftData( startX, startY, currentX, currentY );
if( shiftData.canShift() ) {
int selectionRange = calculateSelectionRange( scrollBar );
int selectionDelta = shiftData.calculateSelectionDelta( selectionRange );
int selection = scrollBar.getSelection() + selectionDelta;
scrollBar.setSelectionInternal( selection, SWT.DRAG );
}
}
@Override
public void end() {
scrollBar.notifyListeners( SWT.NONE );
}
private ShiftData newShiftData( int startX, int startY, int currentX, int currentY ) {
ShiftData result;
if( scrollBar.direction == HORIZONTAL ) {
result = new ShiftData( buttonLength, getScrollBarSize().x, getDragSize().x, currentX - startX );
} else {
result = new ShiftData( buttonLength, getScrollBarSize().y, getDragSize().y, currentY - startY );
}
return result;
}
private Point getScrollBarSize() {
return scrollBar.getSize();
}
private Point getDragSize() {
return scrollBar.drag.getControl().getSize();
}
}

49
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FastDecrementer.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
class FastDecrementer implements ClickAction {
private final FlatScrollBar scrollBar;
private int x;
private int y;
FastDecrementer( FlatScrollBar scrollBar ) {
this.scrollBar = scrollBar;
}
@Override
public void run() {
Rectangle drag = getDragBounds();
Point mouse = getMouseLocation();
if( mouse.x <= drag.x || mouse.y <= drag.y ) {
int selection = scrollBar.getSelection() - scrollBar.getPageIncrement();
scrollBar.setSelectionInternal( selection, SWT.PAGE_UP );
}
}
@Override
public void setCoordinates( int x, int y ) {
this.x = x;
this.y = y;
}
private Point getMouseLocation() {
return getDisplay().map( scrollBar.upFast.getControl(), null, x, y );
}
private Rectangle getDragBounds() {
Rectangle dragBounds = scrollBar.drag.getControl().getBounds();
return getDisplay().map( scrollBar, null, dragBounds );
}
private Display getDisplay() {
return scrollBar.getDisplay();
}
}

42
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FastIncrementer.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
class FastIncrementer implements ClickAction {
private final FlatScrollBar scrollBar;
private Point mouse;
FastIncrementer( FlatScrollBar scrollBar ) {
this.scrollBar = scrollBar;
}
@Override
public void run() {
Rectangle drag = getDragBounds();
if( mouse.x > drag.x + drag.width || mouse.y > drag.y + drag.height ) {
int selection = scrollBar.getSelection() + scrollBar.getPageIncrement();
scrollBar.setSelectionInternal( selection, SWT.PAGE_DOWN );
}
}
@Override
public void setCoordinates( int x, int y ) {
mouse = getMouseLocation( x, y );
}
private Point getMouseLocation(int x, int y) {
return Display.getCurrent().map( scrollBar.downFast.getControl(), null, x, y );
}
private Rectangle getDragBounds() {
Rectangle dragBounds = scrollBar.drag.getControl().getBounds();
return Display.getCurrent().map( scrollBar, null, dragBounds );
}
}

295
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FlatScrollBar.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import static com.minres.scviewer.database.ui.swt.sb.UntypedSelectionAdapter.lookup;
import java.util.Collection;
import java.util.HashSet;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Layout;
import org.eclipse.swt.widgets.Listener;
public class FlatScrollBar extends Composite {
public static final int BAR_BREADTH = 6;
static final int DEFAULT_MINIMUM = 0;
static final int DEFAULT_MAXIMUM = 100;
static final int DEFAULT_INCREMENT = 1;
static final int DEFAULT_THUMB = 10;
static final int DEFAULT_PAGE_INCREMENT = DEFAULT_THUMB;
static final int DEFAULT_SELECTION = 0;
static final int DEFAULT_BUTTON_LENGTH = 0;
static final int DEFAULT_MAX_EXPANSION = Direction.CLEARANCE + 2;
final ClickControl up;
final ClickControl upFast;
final DragControl drag;
final ClickControl downFast;
final ClickControl down;
final Direction direction;
final MouseWheelShifter mouseWheelHandler;
final Collection<SelectionListener> listeners;
private int minimum;
private int maximum;
private int increment;
private int pageIncrement;
private int thumb;
private int selection;
private boolean onDrag;
private int buttonLength;
public FlatScrollBar( final Composite parent, int style ) {
this( parent, style, DEFAULT_BUTTON_LENGTH, DEFAULT_MAX_EXPANSION );
}
FlatScrollBar( Composite parent, int style, int buttonLength, int maxExpansion ) {
super( parent, SWT.NONE );
super.setLayout( new FlatScrollBarLayout( getDirection( style ) ) );
this.minimum = DEFAULT_MINIMUM;
this.maximum = DEFAULT_MAXIMUM;
this.increment = DEFAULT_INCREMENT;
this.pageIncrement = DEFAULT_PAGE_INCREMENT;
this.thumb = DEFAULT_THUMB;
this.selection = DEFAULT_SELECTION;
this.buttonLength = buttonLength;
this.direction = getDirection( style );
this.direction.setDefaultSize( this );
this.up = new ClickControl( this, new Decrementer( this ), maxExpansion );
this.upFast = new ClickControl( this, new FastDecrementer( this ), maxExpansion );
this.drag = new DragControl( this, new DragShifter( this, buttonLength ), maxExpansion );
this.downFast = new ClickControl( this, new FastIncrementer( this ), maxExpansion );
this.down = new ClickControl( this, new Incrementer( this ), maxExpansion );
this.mouseWheelHandler = new MouseWheelShifter( this, parent, buttonLength );
this.listeners = new HashSet<SelectionListener>();
addMouseTrackListener( new MouseTracker( this, maxExpansion ) );
addControlListener( new ResizeObserver( this ) );
setDefaultColorScheme();
}
@Override
public void setLayout( Layout layout ) {
throw new UnsupportedOperationException( FlatScrollBar.class.getName() + " does not allow to change layout." );
};
@Override
public int getStyle() {
return direction != null ? super.getStyle() | direction.value() : super.getStyle();
};
Direction getDirection() {
return direction;
}
public void setMinimum( int minimum ) {
if( this.minimum != minimum && minimum >= 0 && minimum < maximum ) {
this.minimum = minimum;
adjustThumb();
adjustSelection();
layout();
}
}
public int getMinimum() {
return minimum;
}
public void setMaximum( int maximum ) {
if( this.maximum != maximum && maximum >= 0 && maximum > minimum ) {
this.maximum = maximum;
adjustThumb();
adjustSelection();
layout();
}
}
public int getMaximum() {
return maximum;
}
public void setThumb( int thumb ) {
if( this.thumb != thumb && thumb >= 1 ) {
this.thumb = thumb;
adjustThumb();
adjustSelection();
layout();
}
}
public int getThumb() {
return thumb;
}
public void setIncrement( int increment ) {
if( this.increment != increment ) {
this.increment = increment;
layout();
}
}
public int getIncrement() {
return increment;
}
public void setPageIncrement( int pageIncrement ) {
this.pageIncrement = pageIncrement;
}
public int getPageIncrement() {
return pageIncrement;
}
public void setSelection( int selection ) {
if( !onDrag ) {
updateSelection( selection );
}
}
public int getSelection() {
return selection;
}
public void addSelectionListener( SelectionListener selectionListener ) {
listeners.add( selectionListener );
}
public void removeSelectionListener( SelectionListener selectionListener ) {
listeners.remove( selectionListener );
}
@Override
public void addListener( int eventType, final Listener listener ) {
if( eventType == SWT.Selection ) {
addSelectionListener( new UntypedSelectionAdapter( listener ) );
} else {
super.addListener( eventType, listener );
}
}
@Override
public void removeListener( int eventType, Listener listener ) {
if( eventType == SWT.Selection ) {
removeSelectionListener( lookup( listeners, listener ) );
} else {
super.removeListener( eventType, listener );
}
}
@Override
public void layout() {
direction.layout( this, buttonLength );
update();
}
public void setIncrementButtonLength( int length ) {
this.buttonLength = length;
layout();
}
public int getIncrementButtonLength() {
return buttonLength;
}
public void setIncrementColor( Color color ) {
up.setForeground( color );
down.setForeground( color );
}
public Color getIncrementColor() {
return up.getForeground();
}
public void setPageIncrementColor( Color color ) {
upFast.setForeground( color );
downFast.setForeground( color );
}
public Color getPageIncrementColor() {
return upFast.getForeground();
}
public void setThumbColor( Color color ) {
drag.setForeground( color );
}
public Color getThumbColor() {
return drag.getForeground();
}
@Override
public void setBackground( Color color ) {
up.setBackground( color );
upFast.setBackground( color );
drag.setBackground( color );
downFast.setBackground( color );
down.setBackground( color );
super.setBackground( color );
}
protected void setSelectionInternal( int selection, int detail ) {
int oldSelection = this.selection;
updateSelection( selection );
if( oldSelection != this.selection ) {
notifyListeners( detail );
}
}
private void updateSelection( int selection ) {
if( this.selection != selection ) {
this.selection = selection;
adjustSelection();
layout();
}
}
public void notifyListeners( int detail ) {
updateOnDrag( detail );
SelectionEvent selectionEvent = createEvent( detail );
for( SelectionListener listener : listeners ) {
listener.widgetSelected( selectionEvent );
}
}
private void updateOnDrag( int detail ) {
onDrag = ( onDrag || ( SWT.DRAG & detail ) > 0 ) && ( SWT.NONE != detail );
}
private SelectionEvent createEvent( int detail ) {
Event event = new Event();
event.widget = this;
event.detail = detail;
return new SelectionEvent( event );
}
private void adjustThumb() {
if( thumb > maximum - minimum ) {
thumb = Math.min( maximum - minimum, thumb );
thumb = Math.max( 1, thumb );
}
}
private void adjustSelection() {
selection = Math.min( selection, maximum - thumb );
selection = Math.max( selection, minimum );
}
private static Direction getDirection( int style ) {
return ( style & SWT.HORIZONTAL ) > 0 ? Direction.HORIZONTAL : Direction.VERTICAL;
}
private void setDefaultColorScheme() {
up.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_NORMAL_SHADOW ) );
upFast.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_BACKGROUND ) );
drag.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_FOREGROUND ) );
downFast.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_BACKGROUND ) );
down.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_NORMAL_SHADOW ) );
setBackground( getBackground() );
}
}

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plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FlatScrollBarLayout.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Layout;
class FlatScrollBarLayout extends Layout {
private final Direction direction;
public FlatScrollBarLayout( Direction orientation ) {
this.direction = orientation;
}
@Override
protected void layout( Composite composite, boolean flushCache ) {
}
@Override
protected Point computeSize( Composite composite, int wHint, int hHint, boolean flushCache ) {
return direction.computeSize( composite, wHint, hHint, flushCache );
}
}

109
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ImageDrawer.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import static java.lang.Math.min;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Display;
class ImageDrawer {
static final String IMAGE_DRAWER_IS_DISPOSED = "ImageDrawer is disposed.";
private final int maxExpansion;
private Color background;
private Color foreground;
ImageDrawer( int expansion ) {
this( expansion, getSystemColor( SWT.COLOR_WIDGET_DARK_SHADOW ), getSystemColor( SWT.COLOR_LIST_BACKGROUND ) );
}
ImageDrawer( int expansion, Color background, Color foreground ) {
this.maxExpansion = expansion;
this.foreground = defensiveCopy( background );
this.background = defensiveCopy( foreground );
}
void setForeground( Color foreground ) {
checkDisposed();
if( foreground != null ) {
this.foreground = prepareColorAttribute( this.foreground, foreground );
}
}
Color getForeground() {
checkDisposed();
return foreground;
}
void setBackground( Color background ) {
checkDisposed();
if( background != null ) {
this.background = prepareColorAttribute( this.background, background );
}
}
Color getBackground() {
checkDisposed();
return background;
}
Image draw( int width, int height ) {
checkDisposed();
Image result = new Image( getDisplay(), width, height );
GC gc = new GC( result );
try {
draw( gc, width, height );
} finally {
gc.dispose();
}
return result;
}
boolean isDisposed() {
return background.isDisposed();
}
void dispose() {
if( !isDisposed() ) {
this.background.dispose();
this.foreground.dispose();
}
}
private void draw( GC gc, int width, int height ) {
gc.setBackground( background );
gc.fillRectangle( 0, 0, width, height );
gc.setBackground( foreground );
gc.setAdvanced( true );
gc.setAntialias( SWT.ON );
int arc = min( width, height ) == 1 ? 1 : maxExpansion + 2;
gc.fillRoundRectangle( 0, 0, width, height, arc, arc );
}
private void checkDisposed() {
if( isDisposed() ) {
throw new IllegalStateException( IMAGE_DRAWER_IS_DISPOSED );
}
}
private static Color getSystemColor( int colorCode ) {
return getDisplay().getSystemColor( colorCode );
}
private static Color prepareColorAttribute( Color oldColor, Color newColor ) {
oldColor.dispose();
return defensiveCopy( newColor );
}
private static Color defensiveCopy( Color background ) {
return new Color( getDisplay(), background.getRGB() );
}
private static Display getDisplay() {
return Display.getCurrent();
}
}

46
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ImageUpdate.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Label;
class ImageUpdate {
private final ImageDrawer imageDrawer;
private final Label control;
ImageUpdate( Label control, int maxExpansion ) {
this.imageDrawer = new ImageDrawer( maxExpansion );
this.control = control;
this.control.addListener( SWT.Dispose, evt -> imageDrawer.dispose() );
}
void setForeground( Color color ) {
imageDrawer.setForeground( color );
}
Color getForeground() {
return imageDrawer.getForeground();
}
void setBackground( Color color ) {
imageDrawer.setBackground( color );
}
Color getBackground() {
return imageDrawer.getBackground();
}
void update() {
if( !control.isDisposed() ) {
if( control.getImage() != null ) {
control.getImage().dispose();
}
Point size = control.getSize();
if( size.x > 0 && size.y > 0 ) {
control.setImage( imageDrawer.draw( size.x, size.y ) );
}
}
}
}

24
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Incrementer.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.SWT;
import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
class Incrementer implements ClickAction {
private final FlatScrollBar scrollBar;
Incrementer( FlatScrollBar scrollBar ) {
this.scrollBar = scrollBar;
}
@Override
public void run() {
int selection = scrollBar.getSelection() + scrollBar.getIncrement();
scrollBar.setSelectionInternal( selection, SWT.ARROW_DOWN );
}
@Override
public void setCoordinates( int x, int y ) {
}
}

37
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseDownActionTimer.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.widgets.Display;
public class MouseDownActionTimer implements Runnable {
public static final int INITIAL_DELAY = 300;
public static final int FAST_DELAY = 50;
private final ActionScheduler scheduler;
private final TimerAction timerAction;
private final ButtonClick mouseClick;
public interface TimerAction extends Runnable {
boolean isEnabled();
}
public MouseDownActionTimer( TimerAction timerAction, ButtonClick mouseClick, Display display ) {
this.scheduler = new ActionScheduler( display, this );
this.timerAction = timerAction;
this.mouseClick = mouseClick;
}
public void activate() {
if( timerAction.isEnabled() ) {
scheduler.schedule( INITIAL_DELAY );
}
}
@Override
public void run() {
if( mouseClick.isArmed() && timerAction.isEnabled() ) {
timerAction.run();
scheduler.schedule( FAST_DELAY );
}
}
}

66
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseTracker.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseTrackAdapter;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
class MouseTracker extends MouseTrackAdapter implements Runnable, DisposeListener {
static final int DELAY = 500;
private final FlatScrollBar scrollBar;
private final int maxExpansion;
private Rectangle expandedBounds;
private Rectangle originBounds;
private boolean mouseOver;
private boolean disposed;
MouseTracker( FlatScrollBar scrollBar, int maxExpansion ) {
this.scrollBar = scrollBar;
this.maxExpansion = maxExpansion;
this.scrollBar.addDisposeListener( this );
this.scrollBar.up.getControl().addMouseTrackListener( this );
this.scrollBar.upFast.getControl().addMouseTrackListener( this );
this.scrollBar.drag.getControl().addMouseTrackListener( this );
this.scrollBar.downFast.getControl().addMouseTrackListener( this );
this.scrollBar.down.getControl().addMouseTrackListener( this );
}
@Override
public void mouseEnter( MouseEvent event ) {
mouseOver = true;
if( !disposed && originBounds == null ) {
originBounds = scrollBar.getBounds();
scrollBar.getDirection().expand( scrollBar, maxExpansion );
expandedBounds = scrollBar.getBounds();
}
}
@Override
public void mouseExit( MouseEvent event ) {
mouseOver = false;
if( !disposed ) {
Display.getCurrent().timerExec( DELAY, this );
}
}
@Override
public void run() {
if( !disposed && !mouseOver ) {
if( scrollBar.getBounds().equals( expandedBounds ) ) {
scrollBar.setBounds( originBounds );
}
originBounds = null;
expandedBounds = null;
}
}
@Override
public void widgetDisposed( DisposeEvent e ) {
disposed = true;
}
}

69
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseWheelShifter.java Normal file
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package com.minres.scviewer.database.ui.swt.sb;
import static com.minres.scviewer.database.ui.swt.sb.Direction.HORIZONTAL;
import static com.minres.scviewer.database.ui.swt.sb.ShiftData.calculateSelectionRange;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
public class MouseWheelShifter implements Listener, DisposeListener {
private final FlatScrollBar scrollBar;
private final Composite parent;
private final int buttonLength;
MouseWheelShifter( FlatScrollBar scrollBar, Composite parent, int buttonLength ) {
this.scrollBar = scrollBar;
this.parent = parent;
this.buttonLength = buttonLength;
parent.addListener( getListenerType(), this );
scrollBar.addDisposeListener( this );
}
@Override
public void handleEvent( Event event ) {
handleMouseWheelScroll( event );
}
@Override
public void widgetDisposed( DisposeEvent e ) {
parent.removeListener( getListenerType(), this );
}
private void handleMouseWheelScroll( Event event ) {
ShiftData shiftData = newShiftData( event.count );
if( shiftData.canShift() ) {
int selectionRange = calculateSelectionRange( scrollBar );
int selectionDelta = shiftData.calculateSelectionDelta( selectionRange );
int selection = scrollBar.getSelection() - selectionDelta;
scrollBar.setSelectionInternal( selection, scrollBar.direction.value() );
}
}
private ShiftData newShiftData( int delta ) {
ShiftData result;
if( scrollBar.direction == Direction.HORIZONTAL ) {
result = new ShiftData( buttonLength, getScrollBarSize().x, getDragSize().x, delta );
} else {
result = new ShiftData( buttonLength, getScrollBarSize().y, getDragSize().y, delta );
}
return result;
}
private Point getScrollBarSize() {
return scrollBar.getSize();
}
private Point getDragSize() {
return scrollBar.drag.getControl().getSize();
}
private int getListenerType() {
return scrollBar.direction == HORIZONTAL ? SWT.MouseHorizontalWheel: SWT.MouseVerticalWheel;
}
}

19
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ResizeObserver.java Normal file
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@ -0,0 +1,19 @@
package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
class ResizeObserver extends ControlAdapter {
private final FlatScrollBar flatScrollBar;
public ResizeObserver( FlatScrollBar flatScrollBar ) {
this.flatScrollBar = flatScrollBar;
}
@Override
public void controlResized( ControlEvent event ) {
flatScrollBar.layout();
flatScrollBar.moveAbove( null );
}
}

32
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ShiftData.java Normal file
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@ -0,0 +1,32 @@
package com.minres.scviewer.database.ui.swt.sb;
import static com.minres.scviewer.database.ui.swt.sb.ComponentDistribution.divide;
class ShiftData {
private final int slidePixels;
private final int movedPixels;
private final int buttonLength;
ShiftData( int buttonLength, int scrollBarPixels, int dragPixels, int movedPixels ) {
this.buttonLength = buttonLength;
this.slidePixels = calculateSlidePixels( scrollBarPixels, dragPixels );
this.movedPixels = movedPixels;
}
boolean canShift( ) {
return slidePixels > 0;
}
int calculateSelectionDelta( int selectionRange ) {
return divide( movedPixels * selectionRange, slidePixels );
}
static int calculateSelectionRange( FlatScrollBar scrollBar ) {
return scrollBar.getMaximum() - scrollBar.getMinimum() - scrollBar.getThumb();
}
private int calculateSlidePixels( int scrollBarPixels, int dragPixels ) {
return scrollBarPixels - 2 * buttonLength - dragPixels;
}
}

43
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/UntypedSelectionAdapter.java Normal file
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@ -0,0 +1,43 @@
package com.minres.scviewer.database.ui.swt.sb;
import java.util.Collection;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
class UntypedSelectionAdapter extends SelectionAdapter {
final Listener listener;
UntypedSelectionAdapter( Listener listener ) {
this.listener = listener;
}
@Override
public void widgetSelected( SelectionEvent selectionEvent ) {
Event event = new Event();
event.widget = selectionEvent.widget;
event.detail = selectionEvent.detail;
listener.handleEvent( event );
}
static SelectionListener lookup( Collection<SelectionListener> listeners, Listener untypedListener ) {
for( SelectionListener listener : listeners ) {
if( isAdapterType( listener ) && matches( untypedListener, listener ) ) {
return listener;
}
}
return null;
}
private static boolean isAdapterType( SelectionListener listener ) {
return listener instanceof UntypedSelectionAdapter;
}
private static boolean matches( Listener untypedListener, SelectionListener listener ) {
return ( ( UntypedSelectionAdapter )listener ).listener == untypedListener;
}
}

7
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ViewComponent.java Normal file
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@ -0,0 +1,7 @@
package com.minres.scviewer.database.ui.swt.sb;
import org.eclipse.swt.widgets.Control;
public interface ViewComponent {
Control getControl();
}

438
plugins/com.minres.scviewer.database.ui.swt/src/org/eclipse/wb/swt/ResourceManager.java Normal file
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@ -0,0 +1,438 @@
/*******************************************************************************
* Copyright (c) 2011 Google, Inc. and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Google, Inc. - initial API and implementation
* Wim Jongman - 1.8 and higher compliance
*******************************************************************************/
package org.eclipse.wb.swt;
import java.io.File;
import java.io.InputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.resource.CompositeImageDescriptor;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageDataProvider;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.osgi.framework.Bundle;
/**
* Utility class for managing OS resources associated with SWT/JFace controls
* such as colors, fonts, images, etc.
*
* This class is created automatically when you fiddle around with images and
* colors in WB. You might want to prevent your application from using this
* class and provide your own more effective means of resource caching.
*
* Even though this class can be used to manage these resources, if they are
* here for the duration of the application and not used then you still have an
* effective resource leak.
*
* Application code must explicitly invoke the <code>dispose()</code> method to
* release the operating system resources managed by cached objects when those
* objects and OS resources are no longer needed.
*
* This class may be freely distributed as part of any application or plugin.
* <p>
*
* @author scheglov_ke
* @author Dan Rubel
* @author Wim Jongman
*/
public class ResourceManager extends SWTResourceManager {
/**
* The map where we store our images.
*/
private static Map<ImageDescriptor, Image> m_descriptorImageMap = new HashMap<ImageDescriptor, Image>();
/**
* Returns an {@link ImageDescriptor} stored in the file at the specified path
* relative to the specified class.
*
* @param clazz the {@link Class} relative to which to find the image
* descriptor.
* @param path the path to the image file.
* @return the {@link ImageDescriptor} stored in the file at the specified path.
*/
public static ImageDescriptor getImageDescriptor(Class<?> clazz, String path) {
return ImageDescriptor.createFromFile(clazz, path);
}
/**
* Returns an {@link ImageDescriptor} stored in the file at the specified path.
*
* @param path the path to the image file.
* @return the {@link ImageDescriptor} stored in the file at the specified path.
*/
public static ImageDescriptor getImageDescriptor(String path) {
try {
return ImageDescriptor.createFromURL(new File(path).toURI().toURL());
} catch (MalformedURLException e) {
return null;
}
}
/**
* Returns an {@link Image} based on the specified {@link ImageDescriptor}.
*
* @param descriptor the {@link ImageDescriptor} for the {@link Image}.
* @return the {@link Image} based on the specified {@link ImageDescriptor}.
*/
public static Image getImage(ImageDescriptor descriptor) {
if (descriptor == null) {
return null;
}
Image image = m_descriptorImageMap.get(descriptor);
if (image == null) {
image = descriptor.createImage();
m_descriptorImageMap.put(descriptor, image);
}
return image;
}
/**
* Maps images to decorated images.
*/
@SuppressWarnings("unchecked")
private static Map<Image, Map<Image, Image>>[] m_decoratedImageMap = new Map[LAST_CORNER_KEY];
/**
* Returns an {@link Image} composed of a base image decorated by another image.
*
* @param baseImage the base {@link Image} that should be decorated.
* @param decorator the {@link Image} to decorate the base image.
* @return {@link Image} The resulting decorated image.
*/
public static Image decorateImage(Image baseImage, Image decorator) {
return decorateImage(baseImage, decorator, BOTTOM_RIGHT);
}
/**
* Returns an {@link Image} composed of a base image decorated by another image.
*
* @param baseImage
* the base {@link Image} that should be decorated.
* @param decorator
* the {@link Image} to decorate the base image.
* @param corner
* the corner to place decorator image.
* @return the resulting decorated {@link Image}.
*/
public static Image decorateImage(final Image baseImage, final Image decorator, final int corner) {
if (corner <= 0 || corner >= LAST_CORNER_KEY) {
throw new IllegalArgumentException("Wrong decorate corner");
}
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[corner];
if (cornerDecoratedImageMap == null) {
cornerDecoratedImageMap = new HashMap<Image, Map<Image, Image>>();
m_decoratedImageMap[corner] = cornerDecoratedImageMap;
}
Map<Image, Image> decoratedMap = cornerDecoratedImageMap.get(baseImage);
if (decoratedMap == null) {
decoratedMap = new HashMap<Image, Image>();
cornerDecoratedImageMap.put(baseImage, decoratedMap);
}
//
Image result = decoratedMap.get(decorator);
if (result == null) {
final Rectangle bib = baseImage.getBounds();
final Rectangle dib = decorator.getBounds();
final Point baseImageSize = new Point(bib.width, bib.height);
CompositeImageDescriptor compositImageDesc = new CompositeImageDescriptor() {
@Override
protected void drawCompositeImage(int width, int height) {
drawImage(createCachedImageDataProvider(baseImage), 0, 0);
if (corner == TOP_LEFT) {
drawImage(getUnzoomedImageDataProvider(decorator.getImageData()) , 0, 0);
} else if (corner == TOP_RIGHT) {
drawImage(getUnzoomedImageDataProvider(decorator.getImageData()), bib.width - dib.width, 0);
} else if (corner == BOTTOM_LEFT) {
drawImage(getUnzoomedImageDataProvider(decorator.getImageData()), 0, bib.height - dib.height);
} else if (corner == BOTTOM_RIGHT) {
drawImage(getUnzoomedImageDataProvider(decorator.getImageData()), bib.width - dib.width, bib.height - dib.height);
}
}
@Override
protected Point getSize() {
return baseImageSize;
}
};
//
result = compositImageDesc.createImage();
decoratedMap.put(decorator, result);
}
return result;
}
private static ImageDataProvider getUnzoomedImageDataProvider(ImageData imageData) {
return zoom -> zoom == 100 ? imageData : null;
}
/**
* Dispose all of the cached images.
*/
public static void disposeImages() {
SWTResourceManager.disposeImages();
// dispose ImageDescriptor images
{
for (Iterator<Image> I = m_descriptorImageMap.values().iterator(); I.hasNext();) {
I.next().dispose();
}
m_descriptorImageMap.clear();
}
// dispose decorated images
for (int i = 0; i < m_decoratedImageMap.length; i++) {
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[i];
if (cornerDecoratedImageMap != null) {
for (Map<Image, Image> decoratedMap : cornerDecoratedImageMap.values()) {
for (Image image : decoratedMap.values()) {
image.dispose();
}
decoratedMap.clear();
}
cornerDecoratedImageMap.clear();
}
}
// dispose plugin images
{
for (Iterator<Image> I = m_URLImageMap.values().iterator(); I.hasNext();) {
I.next().dispose();
}
m_URLImageMap.clear();
}
}
////////////////////////////////////////////////////////////////////////////
//
// Plugin images support
//
////////////////////////////////////////////////////////////////////////////
/**
* Maps URL to images.
*/
private static Map<String, Image> m_URLImageMap = new HashMap<String, Image>();
/**
* Provider for plugin resources, used by WindowBuilder at design time.
*/
public interface PluginResourceProvider {
URL getEntry(String symbolicName, String path);
}
/**
* Instance of {@link PluginResourceProvider}, used by WindowBuilder at design
* time.
*/
private static PluginResourceProvider m_designTimePluginResourceProvider = null;
/**
* Returns an {@link Image} based on a plugin and file path.
*
* @param plugin the plugin {@link Object} containing the image
* @param name the path to the image within the plugin
* @return the {@link Image} stored in the file at the specified path
*
* @deprecated Use {@link #getPluginImage(String, String)} instead.
*/
@Deprecated
public static Image getPluginImage(Object plugin, String name) {
try {
URL url = getPluginImageURL(plugin, name);
if (url != null) {
return getPluginImageFromUrl(url);
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link Image} based on a {@link Bundle} and resource entry path.
*
* @param symbolicName the symbolic name of the {@link Bundle}.
* @param path the path of the resource entry.
* @return the {@link Image} stored in the file at the specified path.
*/
public static Image getPluginImage(String symbolicName, String path) {
try {
URL url = getPluginImageURL(symbolicName, path);
if (url != null) {
return getPluginImageFromUrl(url);
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link Image} based on given {@link URL}.
*/
private static Image getPluginImageFromUrl(URL url) {
try {
try {
String key = url.toExternalForm();
Image image = m_URLImageMap.get(key);
if (image == null) {
InputStream stream = url.openStream();
try {
image = getImage(stream);
m_URLImageMap.put(key, image);
} finally {
stream.close();
}
}
return image;
} catch (Throwable e) {
// Ignore any exceptions
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link ImageDescriptor} based on a plugin and file path.
*
* @param plugin the plugin {@link Object} containing the image.
* @param name the path to th eimage within the plugin.
* @return the {@link ImageDescriptor} stored in the file at the specified path.
*
* @deprecated Use {@link #getPluginImageDescriptor(String, String)} instead.
*/
@Deprecated
public static ImageDescriptor getPluginImageDescriptor(Object plugin, String name) {
try {
try {
URL url = getPluginImageURL(plugin, name);
return ImageDescriptor.createFromURL(url);
} catch (Throwable e) {
// Ignore any exceptions
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link ImageDescriptor} based on a {@link Bundle} and resource
* entry path.
*
* @param symbolicName the symbolic name of the {@link Bundle}.
* @param path the path of the resource entry.
* @return the {@link ImageDescriptor} based on a {@link Bundle} and resource
* entry path.
*/
public static ImageDescriptor getPluginImageDescriptor(String symbolicName, String path) {
try {
URL url = getPluginImageURL(symbolicName, path);
if (url != null) {
return ImageDescriptor.createFromURL(url);
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link URL} based on a {@link Bundle} and resource entry path.
*/
private static URL getPluginImageURL(String symbolicName, String path) {
// try runtime plugins
{
Bundle bundle = Platform.getBundle(symbolicName);
if (bundle != null) {
return bundle.getEntry(path);
}
}
// try design time provider
if (m_designTimePluginResourceProvider != null) {
return m_designTimePluginResourceProvider.getEntry(symbolicName, path);
}
// no such resource
return null;
}
/**
* Returns an {@link URL} based on a plugin and file path.
*
* @param plugin the plugin {@link Object} containing the file path.
* @param name the file path.
* @return the {@link URL} representing the file at the specified path.
* @throws Exception
*/
private static URL getPluginImageURL(Object plugin, String name) throws Exception {
// try to work with 'plugin' as with OSGI BundleContext
try {
Class<?> BundleClass = Class.forName("org.osgi.framework.Bundle"); //$NON-NLS-1$
Class<?> BundleContextClass = Class.forName("org.osgi.framework.BundleContext"); //$NON-NLS-1$
if (BundleContextClass.isAssignableFrom(plugin.getClass())) {
Method getBundleMethod = BundleContextClass.getMethod("getBundle", new Class[0]); //$NON-NLS-1$
Object bundle = getBundleMethod.invoke(plugin, new Object[0]);
//
Class<?> PathClass = Class.forName("org.eclipse.core.runtime.Path"); //$NON-NLS-1$
Constructor<?> pathConstructor = PathClass.getConstructor(new Class[] { String.class });
Object path = pathConstructor.newInstance(new Object[] { name });
//
Class<?> IPathClass = Class.forName("org.eclipse.core.runtime.IPath"); //$NON-NLS-1$
Class<?> PlatformClass = Class.forName("org.eclipse.core.runtime.Platform"); //$NON-NLS-1$
Method findMethod = PlatformClass.getMethod("find", new Class[] { BundleClass, IPathClass }); //$NON-NLS-1$
return (URL) findMethod.invoke(null, new Object[] { bundle, path });
}
} catch (Throwable e) {
// Ignore any exceptions
}
// else work with 'plugin' as with usual Eclipse plugin
{
Class<?> PluginClass = Class.forName("org.eclipse.core.runtime.Plugin"); //$NON-NLS-1$
if (PluginClass.isAssignableFrom(plugin.getClass())) {
//
Class<?> PathClass = Class.forName("org.eclipse.core.runtime.Path"); //$NON-NLS-1$
Constructor<?> pathConstructor = PathClass.getConstructor(new Class[] { String.class });
Object path = pathConstructor.newInstance(new Object[] { name });
//
Class<?> IPathClass = Class.forName("org.eclipse.core.runtime.IPath"); //$NON-NLS-1$
Method findMethod = PluginClass.getMethod("find", new Class[] { IPathClass }); //$NON-NLS-1$
return (URL) findMethod.invoke(plugin, new Object[] { path });
}
}
return null;
}
////////////////////////////////////////////////////////////////////////////
//
// General
//
////////////////////////////////////////////////////////////////////////////
/**
* Dispose of cached objects and their underlying OS resources. This should only
* be called when the cached objects are no longer needed (e.g. on application
* shutdown).
*/
public static void dispose() {
disposeColors();
disposeFonts();
disposeImages();
}
}

267
plugins/com.minres.scviewer.database.ui.swt/src/org/eclipse/wb/swt/SWTResourceManager.java
View File

@ -29,17 +29,14 @@ import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
/**
* Utility class for managing OS resources associated with SWT controls such as
* colors, fonts, images, etc.
* Utility class for managing OS resources associated with SWT controls such as colors, fonts, images, etc.
* <p>
* !!! IMPORTANT !!! Application code must explicitly invoke the
* <code>dispose()</code> method to release the operating system resources
* managed by cached objects when those objects and OS resources are no longer
* !!! IMPORTANT !!! Application code must explicitly invoke the <code>dispose()</code> method to release the
* operating system resources managed by cached objects when those objects and OS resources are no longer
* needed (e.g. on application shutdown)
* <p>
* This class may be freely distributed as part of any application or plugin.
* <p>
*
* @author scheglov_ke
* @author Dan Rubel
*/
@ -49,54 +46,57 @@ public class SWTResourceManager {
// Color
//
////////////////////////////////////////////////////////////////////////////
private static Map<RGB, Color> colorMap = new HashMap<>();
private SWTResourceManager() {}
private static Map<RGB, Color> m_colorMap = new HashMap<RGB, Color>();
/**
* Returns the system {@link Color} matching the specific ID.
*
* @param systemColorID the ID value for the color
* @param systemColorID
* the ID value for the color
* @return the system {@link Color} matching the specific ID
*/
public static Color getColor(int systemColorID) {
Display display = Display.getCurrent();
return display.getSystemColor(systemColorID);
}
/**
* Returns a {@link Color} given its red, green and blue component values.
*
* @param r the red component of the color
* @param g the green component of the color
* @param b the blue component of the color
* @return the {@link Color} matching the given red, green and blue component
* values
* @param r
* the red component of the color
* @param g
* the green component of the color
* @param b
* the blue component of the color
* @return the {@link Color} matching the given red, green and blue component values
*/
public static Color getColor(int r, int g, int b) {
return getColor(new RGB(r, g, b));
}
/**
* Returns a {@link Color} given its RGB value.
*
* @param rgb the {@link RGB} value of the color
* @param rgb
* the {@link RGB} value of the color
* @return the {@link Color} matching the RGB value
*/
public static Color getColor(RGB rgb) {
return colorMap.computeIfAbsent(rgb, k -> new Color(Display.getCurrent(), rgb));
Color color = m_colorMap.get(rgb);
if (color == null) {
Display display = Display.getCurrent();
color = new Color(display, rgb);
m_colorMap.put(rgb, color);
}
return color;
}
/**
* Dispose of all the cached {@link Color}'s.
*/
public static void disposeColors() {
for (Color color : colorMap.values()) {
for (Color color : m_colorMap.values()) {
color.dispose();
}
colorMap.clear();
m_colorMap.clear();
}
////////////////////////////////////////////////////////////////////////////
//
// Image
@ -105,12 +105,12 @@ public class SWTResourceManager {
/**
* Maps image paths to images.
*/
private static Map<String, Image> imageMap = new HashMap<>();
private static Map<String, Image> m_imageMap = new HashMap<String, Image>();
/**
* Returns an {@link Image} encoded by the specified {@link InputStream}.
*
* @param stream the {@link InputStream} encoding the image data
* @param stream
* the {@link InputStream} encoding the image data
* @return the {@link Image} encoded by the specified input stream
*/
protected static Image getImage(InputStream stream) throws IOException {
@ -125,55 +125,52 @@ public class SWTResourceManager {
stream.close();
}
}
/**
* Returns an {@link Image} stored in the file at the specified path.
*
* @param path the path to the image file
* @param path
* the path to the image file
* @return the {@link Image} stored in the file at the specified path
*/
public static Image getImage(String path) {
Image image = imageMap.get(path);
Image image = m_imageMap.get(path);
if (image == null) {
try {
image = getImage(new FileInputStream(path));
imageMap.put(path, image);
m_imageMap.put(path, image);
} catch (Exception e) {
image = getMissingImage();
imageMap.put(path, image);
m_imageMap.put(path, image);
}
}
return image;
}
/**
* Returns an {@link Image} stored in the file at the specified path relative to
* the specified class.
* Returns an {@link Image} stored in the file at the specified path relative to the specified class.
*
* @param clazz the {@link Class} relative to which to find the image
* @param path the path to the image file, if starts with <code>'/'</code>
* @param clazz
* the {@link Class} relative to which to find the image
* @param path
* the path to the image file, if starts with <code>'/'</code>
* @return the {@link Image} stored in the file at the specified path
*/
public static Image getImage(Class<?> clazz, String path) {
String key = clazz.getName() + '|' + path;
Image image = imageMap.get(key);
Image image = m_imageMap.get(key);
if (image == null) {
try {
image = getImage(clazz.getResourceAsStream(path));
imageMap.put(key, image);
m_imageMap.put(key, image);
} catch (Exception e) {
image = getMissingImage();
imageMap.put(key, image);
m_imageMap.put(key, image);
}
}
return image;
}
private static final int MISSING_IMAGE_SIZE = 10;
/**
* @return the small {@link Image} that can be used as placeholder for missing
* image.
* @return the small {@link Image} that can be used as placeholder for missing image.
*/
private static Image getMissingImage() {
Image image = new Image(Display.getCurrent(), MISSING_IMAGE_SIZE, MISSING_IMAGE_SIZE);
@ -185,7 +182,6 @@ public class SWTResourceManager {
//
return image;
}
/**
* Style constant for placing decorator image in top left corner of base image.
*/
@ -195,13 +191,11 @@ public class SWTResourceManager {
*/
public static final int TOP_RIGHT = 2;
/**
* Style constant for placing decorator image in bottom left corner of base
* image.
* Style constant for placing decorator image in bottom left corner of base image.
*/
public static final int BOTTOM_LEFT = 3;
/**
* Style constant for placing decorator image in bottom right corner of base
* image.
* Style constant for placing decorator image in bottom right corner of base image.
*/
public static final int BOTTOM_RIGHT = 4;
/**
@ -212,77 +206,83 @@ public class SWTResourceManager {
* Maps images to decorated images.
*/
@SuppressWarnings("unchecked")
private static Map<Image, Map<Image, Image>>[] decoratedImageMap = new Map[LAST_CORNER_KEY];
private static Map<Image, Map<Image, Image>>[] m_decoratedImageMap = new Map[LAST_CORNER_KEY];
/**
* Returns an {@link Image} composed of a base image decorated by another image.
*
* @param baseImage the base {@link Image} that should be decorated
* @param decorator the {@link Image} to decorate the base image
* @param baseImage
* the base {@link Image} that should be decorated
* @param decorator
* the {@link Image} to decorate the base image
* @return {@link Image} The resulting decorated image
*/
public static Image decorateImage(Image baseImage, Image decorator) {
return decorateImage(baseImage, decorator, BOTTOM_RIGHT);
}
/**
* Returns an {@link Image} composed of a base image decorated by another image.
*
* @param baseImage the base {@link Image} that should be decorated
* @param decorator the {@link Image} to decorate the base image
* @param corner the corner to place decorator image
* @param baseImage
* the base {@link Image} that should be decorated
* @param decorator
* the {@link Image} to decorate the base image
* @param corner
* the corner to place decorator image
* @return the resulting decorated {@link Image}
*/
public static Image decorateImage(final Image baseImage, final Image decorator, final int corner) {
if (corner <= 0 || corner >= LAST_CORNER_KEY) {
throw new IllegalArgumentException("Wrong decorate corner");
}
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = decoratedImageMap[corner];
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[corner];
if (cornerDecoratedImageMap == null) {
cornerDecoratedImageMap = new HashMap<>();
decoratedImageMap[corner] = cornerDecoratedImageMap;
cornerDecoratedImageMap = new HashMap<Image, Map<Image, Image>>();
m_decoratedImageMap[corner] = cornerDecoratedImageMap;
}
Map<Image, Image> decoratedMap = cornerDecoratedImageMap.computeIfAbsent(baseImage,
k -> new HashMap<Image, Image>());
return decoratedMap.computeIfAbsent(decorator, k -> {
Map<Image, Image> decoratedMap = cornerDecoratedImageMap.get(baseImage);
if (decoratedMap == null) {
decoratedMap = new HashMap<Image, Image>();
cornerDecoratedImageMap.put(baseImage, decoratedMap);
}
//
Image result = decoratedMap.get(decorator);
if (result == null) {
Rectangle bib = baseImage.getBounds();
Rectangle dib = decorator.getBounds();
Image result = new Image(Display.getCurrent(), bib.width, bib.height);
//
result = new Image(Display.getCurrent(), bib.width, bib.height);
//
GC gc = new GC(result);
gc.drawImage(baseImage, 0, 0);
switch (corner) {
case TOP_LEFT:
if (corner == TOP_LEFT) {
gc.drawImage(decorator, 0, 0);
break;
case TOP_RIGHT:
} else if (corner == TOP_RIGHT) {
gc.drawImage(decorator, bib.width - dib.width, 0);
break;
case BOTTOM_LEFT:
} else if (corner == BOTTOM_LEFT) {
gc.drawImage(decorator, 0, bib.height - dib.height);
break;
case BOTTOM_RIGHT:
} else if (corner == BOTTOM_RIGHT) {
gc.drawImage(decorator, bib.width - dib.width, bib.height - dib.height);
break;
default:
// do nothing
}
gc.dispose();
return result;
});
//
decoratedMap.put(decorator, result);
}
return result;
}
/**
* Dispose all of the cached {@link Image}'s.
*/
public static void disposeImages() {
// dispose loaded images
for (Image image : imageMap.values()) {
image.dispose();
{
for (Image image : m_imageMap.values()) {
image.dispose();
}
m_imageMap.clear();
}
imageMap.clear();
// dispose decorated images
for (int i = 0; i < decoratedImageMap.length; i++) {
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = decoratedImageMap[i];
for (int i = 0; i < m_decoratedImageMap.length; i++) {
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[i];
if (cornerDecoratedImageMap != null) {
for (Map<Image, Image> decoratedMap : cornerDecoratedImageMap.values()) {
for (Image image : decoratedMap.values()) {
@ -294,7 +294,6 @@ public class SWTResourceManager {
}
}
}
////////////////////////////////////////////////////////////////////////////
//
// Font
@ -303,39 +302,45 @@ public class SWTResourceManager {
/**
* Maps font names to fonts.
*/
private static Map<String, Font> fontMap = new HashMap<>();
private static Map<String, Font> m_fontMap = new HashMap<String, Font>();
/**
* Maps fonts to their bold versions.
*/
private static Map<Font, Font> fontToBoldFontMap = new HashMap<>();
private static Map<Font, Font> m_fontToBoldFontMap = new HashMap<Font, Font>();
/**
* Returns a {@link Font} based on its name, height and style.
*
* @param name the name of the font
* @param height the height of the font
* @param style the style of the font
* @param name
* the name of the font
* @param height
* the height of the font
* @param style
* the style of the font
* @return {@link Font} The font matching the name, height and style
*/
public static Font getFont(String name, int height, int style) {
return getFont(name, height, style, false, false);
}
/**
* Returns a {@link Font} based on its name, height and style. Windows-specific
* strikeout and underline flags are also supported.
* Returns a {@link Font} based on its name, height and style. Windows-specific strikeout and underline
* flags are also supported.
*
* @param name the name of the font
* @param size the size of the font
* @param style the style of the font
* @param strikeout the strikeout flag (warning: Windows only)
* @param underline the underline flag (warning: Windows only)
* @return {@link Font} The font matching the name, height, style, strikeout and
* underline
* @param name
* the name of the font
* @param size
* the size of the font
* @param style
* the style of the font
* @param strikeout
* the strikeout flag (warning: Windows only)
* @param underline
* the underline flag (warning: Windows only)
* @return {@link Font} The font matching the name, height, style, strikeout and underline
*/
public static Font getFont(String name, int size, int style, boolean strikeout, boolean underline) {
String fontName = name + '|' + size + '|' + style + '|' + strikeout + '|' + underline;
return fontMap.computeIfAbsent(fontName, k -> {
Font font = m_fontMap.get(fontName);
if (font == null) {
FontData fontData = new FontData(name, size, style);
if (strikeout || underline) {
try {
@ -349,45 +354,47 @@ public class SWTResourceManager {
logFontClass.getField("lfUnderline").set(logFont, Byte.valueOf((byte) 1)); //$NON-NLS-1$
}
}
} catch (Exception e) {
} catch (Throwable e) {
System.err.println("Unable to set underline or strikeout" + " (probably on a non-Windows platform). " + e); //$NON-NLS-1$ //$NON-NLS-2$
}
}
return new Font(Display.getCurrent(), fontData);
});
font = new Font(Display.getCurrent(), fontData);
m_fontMap.put(fontName, font);
}
return font;
}
/**
* Returns a bold version of the given {@link Font}.
*
* @param baseFont the {@link Font} for which a bold version is desired
* @param baseFont
* the {@link Font} for which a bold version is desired
* @return the bold version of the given {@link Font}
*/
public static Font getBoldFont(Font baseFont) {
return fontToBoldFontMap.computeIfAbsent(baseFont, k -> {
FontData[] fontDatas = baseFont.getFontData();
Font font = m_fontToBoldFontMap.get(baseFont);
if (font == null) {
FontData fontDatas[] = baseFont.getFontData();
FontData data = fontDatas[0];
return new Font(Display.getCurrent(), data.getName(), data.getHeight(), SWT.BOLD);
});
font = new Font(Display.getCurrent(), data.getName(), data.getHeight(), SWT.BOLD);
m_fontToBoldFontMap.put(baseFont, font);
}
return font;
}
/**
* Dispose all of the cached {@link Font}'s.
*/
public static void disposeFonts() {
// clear fonts
for (Font font : fontMap.values()) {
for (Font font : m_fontMap.values()) {
font.dispose();
}
fontMap.clear();
m_fontMap.clear();
// clear bold fonts
for (Font font : fontToBoldFontMap.values()) {
for (Font font : m_fontToBoldFontMap.values()) {
font.dispose();
}
fontToBoldFontMap.clear();
m_fontToBoldFontMap.clear();
}
////////////////////////////////////////////////////////////////////////////
//
// Cursor
@ -396,38 +403,40 @@ public class SWTResourceManager {
/**
* Maps IDs to cursors.
*/
private static Map<Integer, Cursor> idToCursorMap = new HashMap<>();
private static Map<Integer, Cursor> m_idToCursorMap = new HashMap<Integer, Cursor>();
/**
* Returns the system cursor matching the specific ID.
*
* @param id int The ID value for the cursor
* @param id
* int The ID value for the cursor
* @return Cursor The system cursor matching the specific ID
*/
public static Cursor getCursor(int id) {
Integer key = Integer.valueOf(id);
return idToCursorMap.computeIfAbsent(key, k -> new Cursor(Display.getDefault(), id));
Cursor cursor = m_idToCursorMap.get(key);
if (cursor == null) {
cursor = new Cursor(Display.getDefault(), id);
m_idToCursorMap.put(key, cursor);
}
return cursor;
}
/**
* Dispose all of the cached cursors.
*/
public static void disposeCursors() {
for (Cursor cursor : idToCursorMap.values()) {
for (Cursor cursor : m_idToCursorMap.values()) {
cursor.dispose();
}
idToCursorMap.clear();
m_idToCursorMap.clear();
}
////////////////////////////////////////////////////////////////////////////
//
// General
//
////////////////////////////////////////////////////////////////////////////
/**
* Dispose of cached objects and their underlying OS resources. This should only
* be called when the cached objects are no longer needed (e.g. on application
* shutdown).
* Dispose of cached objects and their underlying OS resources. This should only be called when the cached
* objects are no longer needed (e.g. on application shutdown).
*/
public static void dispose() {
disposeColors();

1
products/com.minres.scviewer.e4.product/scviewer.product
View File

@ -80,7 +80,6 @@
<repositories>
<repository location="http://https://minres.github.io/SCViewer/repository" enabled="true" />
<repository location="http://https://minres.github.io/SCViewer/repository" enabled="true" />
</repositories>
<preferencesInfo>