Home » Eclipse Projects » Remote Application Platform (RAP) » PShelf
| PShelf [message #513516] |
Wed, 10 February 2010 13:06 |
 Niels Lippke
Messages: 71
Registered: December 2009 |
Member |
|
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This is a multi-part message in MIME format.
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Attached you'll find a RAP version for the pshelf. The API is unchanged. The
original implementation is changed in the way that it uses now the GCCanvas
instead of the (non-existing) internal GC.
The "animation" is missing, but I guess that's ok. I know that Tom did a
transcript as well, but was not allowed to release it. So feel free to use
this one.
Regards,
Niels
P.S.: You may use the snippet from the nebula project site as demo.
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PK=03=04=0A=
=00=00=00=00=00=A0nJ<=00=00=00=00=00=00=00=00=00=00=00=00"=00=00=00org.ec=
lipse.nebula.widgets.pshelf/PK=03=04=0A=
=00=00=00=00=00=15=00=00=00org.eclipse.=
nebula.widgets.pshelf/src/org/eclipse/nebula/widgets/pshelf/ AbstractRende=
rer.java/*************************************************** *************=
***************
* Copyright (c) 2006 IBM Corporation 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:
* chris.gross@us.ibm.com - initial API and implementation
=
************************************************************ *************=
******/=20
package org.eclipse.nebula.widgets.pshelf;
import org.eclipse.rwt.widgets.GCCanvas; =20
//import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Control;
/**
* <p>
* NOTE: THIS WIDGET AND ITS API ARE STILL UNDER DEVELOPMENT. THIS IS =
A PRE-RELEASE ALPHA=20
* VERSION. USERS SHOULD EXPECT API CHANGES IN FUTURE VERSIONS.
* </p>=20
* Renders a single visual unit.
* =20
* @author chris.gross@us.ibm.com
*/
public abstract class AbstractRenderer
{
/** Hover state. */
private boolean hover;
/** Renderer has focus. */
private boolean focus;
/** Mouse down on the renderer area. */
private boolean mouseDown;
/** Selection state. */
private boolean selected;
/** Expansion state. */
private boolean expanded;
/** The bounds the renderer paints on. */
private Rectangle bounds =3D new Rectangle(0, 0, 0, 0);
private boolean disposed =3D false;
=20
/**
* Returns the bounds.
*=20
* @return Rectangle describing the bounds.
*/
public Rectangle getBounds()
{
return bounds;
}
/**
* Sets the bounds of the drawing.
*=20
* @param x X coordinate.
* @param y Y coordinate.
* @param width Width.
* @param height Height.
*/
public void setBounds(int x, int y, int width, int height)
{
setBounds(new Rectangle(x, y, width, height));
}
/**
* Sets the bounds of the drawing.
*=20
* @param bounds Bounds.
*/
public void setBounds(Rectangle bounds)
{
this.bounds =3D bounds;
}
/**
* Returns the size.
*=20
* @return size of the renderer.
*/
public Point getSize()
{
return new Point(bounds.width, bounds.height);
}
/**
* Sets the location of the drawing.
*=20
* @param x X.
* @param y Y.
*/
public void setLocation(int x, int y)
{
setBounds(new Rectangle(x, y, bounds.width, bounds.height));
}
/**
* Sets the location of the drawing.
*=20
* @param location Location.
*/
public void setLocation(Point location)
{
setBounds(new Rectangle(location.x, location.y, bounds.width, =
bounds.height));
}
/**
* Sets the area of the drawing.
*=20
* @param width Width.
* @param height Height.
*/
public void setSize(int width, int height)
{
setBounds(new Rectangle(bounds.x, bounds.y, width, height));
}
/**
* Sets the area of the drawing.
*=20
* @param size Size.
*/
public void setSize(Point size)
{
setBounds(new Rectangle(bounds.x, bounds.y, size.x, size.y));
}
/**
* Returns a boolean value indicating if this renderer has focus.
*=20
* @return True/false if has focus.
*/
public boolean isFocus()
{
return focus;
}
/**
* Sets focus state.
*=20
* @param focus focus state.
*/
public void setFocus(boolean focus)
{
this.focus =3D focus;
}
/**
* Returns the hover state.
*=20
* @return Is the renderer in the hover state.
*/
public boolean isHover()
{
return hover;
}
/**
* Sets the hover state.
*=20
* @param hover Hover state.
*/
public void setHover(boolean hover)
{
this.hover =3D hover;
}
/**
* Returns the boolean value indicating if the renderer has the =
mouseDown
* state.
*=20
* @return mouse down state.
*/
public boolean isMouseDown()
{
return mouseDown;
}
/**
* Sets the mouse down state.
*=20
* @param mouseDown Mouse state.
*/
public void setMouseDown(boolean mouseDown)
{
this.mouseDown =3D mouseDown;
}
/**
* Returns the boolean state indicating if the selected state is =
set.
*=20
* @return selected state.
*/
public boolean isSelected()
{
return selected;
}
/**
* Sets the selected state.
*=20
* @param selected Selection state.
*/
public void setSelected(boolean selected)
{
this.selected =3D selected;
}
/**
* Returns the expansion state.
*=20
* @return Returns the expanded.
*/
public boolean isExpanded()
{
return expanded;
}
/**
* Sets the expansion state of this renderer.
*=20
* @param expanded The expanded to set.
*/
public void setExpanded(boolean expanded)
{
this.expanded =3D expanded;
}
/**
* Paints the visual representation of the given value on the given =
GC. The
* actual class of the value object is determined by the use of the
* implementing class.
* <p>
* Implementors need to respect the bounds values that may have been
* specified. The bounds values may affect the x and y values for =
all
* drawing operations as well as the width and heights. Implementors =
may use
* a <code>Transform</code> to translate the coordinates of all the
* drawing operations, otherwise they will need to offset each draw.
* </p>
*=20
* @param GCCanvas GCCanvas to paint with
* @param value the value being painted
*/
public abstract void paint(GCCanvas gc, Object value);
/**
* Returns the size of the given value's visual representation.
*=20
* @param GCCanvas convenience GCCanvas for string and text extents
* @param wHint given width (or SWT.DEFAULT)
* @param hHint given height (or SWT.DEFAULT)
* @param value value to be sized
* @return the size
*/
public abstract Point computeSize(GCCanvas gc, int wHint, int hHint, =
Object value);
/**
* Performs any initialization logic (such as creating new colors or =
fonts).
*=20
* @param parent control that is using the renderer
*/
public abstract void initialize(Control parent);
=20
/**
* Disposes of any resources managed by this renderer.
*/
public void dispose(){
setDisposed(true);
}
/**
* @return the disposed
*/
public boolean isDisposed()
{
return disposed;
}
/**
* @param disposed the disposed to set
*/
protected void setDisposed(boolean disposed)
{
this.disposed =3D disposed;
}
}
PK=03=04=0A=
=00=00=00=00=00=14.getHeight() + =
(2*(margin+textMargin)));
=09
//int h =3D =
Math.max(item.getImage().getBounds().height,gc.getFontMetric s().getFontDa=
ta().getHeight() + (2*textMargin)) + (2*margin);
int h =3D =
Math.max(item.getImage().getBounds().height,gc.getFont().get FontData()=
..getHeight() + (2*textMargin)) + (2*margin);
=09
if (h % 2 !=3D 0)
h ++;
=09
return new Point(wHint,h);
}
=09
=20
/**=20
* {@inheritDoc}
*/
public void paint(/*GC*/ GCCanvas gc, Object value)
{
PShelfItem item =3D (PShelfItem)value;
=20
//Color back =3D parent.getBackground();
Color fore =3D parent.getForeground();
=09
=
gc.fillRectangle(0,getBounds().y,getBounds().width-1,getBoun ds().height-1=
); =09
=20
gc.setForeground(shadeColor);
gc.fillGradientRectangle(0,getBounds().y,40,getBounds().heig ht-1,true =
/*false*/);
=09
=
gc.setForeground(parent.getDisplay().getSystemColor(SWT.COLO R_WIDGET_HIGH=
LIGHT_SHADOW));
gc.drawLine(0,getBounds().y,0,getBounds().y +getBounds().height -1);
gc.drawLine(0,getBounds().y,getBounds().width -1,getBounds().y);
=09
=
gc.setForeground(parent.getDisplay().getSystemColor(SWT.COLO R_WIDGET_NORM=
AL_SHADOW));
gc.drawLine(0,getBounds().y +getBounds().height =
-1,getBounds().width-1,getBounds().y +getBounds().height-1);
=
gc.drawLine(getBounds().width-1,getBounds().y,getBounds().wi dth-1,getBoun=
ds().y +getBounds().height-1);
=09
int x =3D 6;
if (item.getImage() !=3D null){
int y2 =3D (getBounds().height - =
item.getImage().getBounds().height)/2;
if ((getBounds().height - item.getImage().getBounds().height) % 2 =
!=3D 0)
y2 ++;
=09
gc.drawImage(item.getImage(),x,getBounds().y + y2);
=09
x +=3D item.getImage().getBounds().width + spacing;
}
gc.setForeground(fore);
=09
// int y2 =3D (getBounds().height - =
gc.getFontMetrics().getHeight())/2;
int y2 =3D (getBounds().height - =
gc.getFont().getFontData().getHeight())/2;
//if ((getBounds().height - gc.getFontMetrics().getHeight()) % 2 !=3D =
0)
if ((getBounds().height - gc.getFont().getFontData().getHeight()) % =
2 !=3D 0)
y2 ++;
=09
// if (center){
// x =3D (width - gc.stringExtent(item.getText()).x)/2;
// }
=20
// if (isHover() && !isSelected())
// =
gc.setForeground(gc.getDevice().getSystemColor(SWT.COLOR_LIS T_SELECTION))=
;
=09
String text =3D getShortString(gc, item.getText(), =
getBounds().width - x - 4);
//gc.drawString(text,x,getBounds().y +y2,true);
gc.drawText(text,x,getBounds().y + y2 - 4);
=20
if (isFocus()){
//gc.drawFocus(1,1,getBounds().width-2,getBounds().height-1) ;
gc.drawRectangle(1,1,getBounds().width-2,getBounds().height- 1);
}
}
=09
public void initialize(Control control){
this.parent =3D (PShelf)control;
shadeColor =3D =
parent.getDisplay().getSystemColor(SWT.COLOR_WIDGET_NORMAL_S HADOW);
}
public Color getShadeColor() {
return shadeColor;
}
public void setShadeColor(Color shadeColor) {
this.shadeColor =3D shadeColor;
}
private static String getShortString(/*GC*/ GCCanvas gc, String t, =
int width)
{
if (t =3D=3D null)
{
return null;
}
if (t.equals(""))
{
return "";
}
//if (width >=3D gc.stringExtent(t).x)
if (width >=3D Graphics.stringExtent(gc.getFont(),t).x)
{
return t;
}
//int w =3D gc.stringExtent("...").x;
int w =3D Graphics.stringExtent(gc.getFont(),"...").x;
String text =3D t;
int l =3D text.length();
int pivot =3D l / 2;
int s =3D pivot;
int e =3D pivot + 1;
while (s >=3D 0 && e < l)
{
String s1 =3D text.substring(0, s);
String s2 =3D text.substring(e, l);
//int l1 =3D gc.stringExtent(s1).x;
int l1 =3D Graphics.stringExtent(gc.getFont(),s1).x;
//int l2 =3D gc.stringExtent(s2).x;
int l2 =3D Graphics.stringExtent(gc.getFont(),s1).x;
if (l1 + w + l2 < width)
{
text =3D s1 + "..." + s2;
break;
}
s--;
e++;
}
if (s =3D=3D 0 || e =3D=3D l)
{
text =3D text.substring(0, 1) + "..." + text.substring(l - =
1, l);
}
return text;
}
}
PK=03=04=0A=
=00=00=00=00=00=14 getItems()
{
checkWidget();
return (PShelfItem[])items.toArray(new =
PShelfItem);
}
=20
/**
* Adds the listener to the collection of listeners who will
* be notified when the receiver's selection changes, by sending
* it one of the messages defined in the =
<code>SelectionListener</code>
* interface.
* <p>
* When <code>widgetSelected</code> is called, the item field of the =
event object is valid.
* <code>widgetDefaultSelected</code> is not called.
* </p>
*
* @param listener the listener which should be notified
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been =
disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the =
thread that created the receiver</li>
* </ul>
*
* @see SelectionListener
* @see #removeSelectionListener
* @see SelectionEvent
*/
public void addSelectionListener(SelectionListener listener) {
checkWidget ();
if (listener =3D=3D null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener =3D new TypedListener(listener);
addListener(SWT.Selection,typedListener);
addListener(SWT.DefaultSelection,typedListener);
}
=20
/**
* Removes the listener from the collection of listeners who will
* be notified when the receiver's selection changes.
*
* @param listener the listener which should no longer be notified
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been =
disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the =
thread that created the receiver</li>
* </ul>
*
* @see SelectionListener
* @see #addSelectionListener
*/
public void removeSelectionListener (SelectionListener listener) {
checkWidget ();
if (listener =3D=3D null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener =3D new TypedListener(listener);
//removeListener(SWT.Selection, listener);
removeListener(SWT.Selection, typedListener);
//removeListener(SWT.DefaultSelection,listener);
removeListener(SWT.DefaultSelection,typedListener);
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Control#redraw()
*/
public void redraw() {
super.redraw();
onPaint(gc); =09
}
=20
=20
}
PK=03=04=0A=
=00=00=00=00=00=14 initialColors; // to dispose created colors
private int textMargin =3D 2;
private int margin =3D 4;
private PShelf parent;
private int spacing =3D 8;
private Font initialFont;
private Font initialOpenFont;
private Color gradient1;
private Color gradient2;
private Font font;
private Font selectedFont;
private Color selectedGradient1;
private Color selectedGradient2;
private Color hoverGradient1;
private Color hoverGradient2;
private Color lineColor;
private Color selectedForeground;
private Color hoverForeground;
private Color foreground;
/**
* {@inheritDoc}
*/
public Point computeSize(/* GC */GCCanvas gc, int wHint, int hHint,
Object value) {
PShelfItem item =3D (PShelfItem) value;
int h =3D 0;
gc.setFont(font);
if (item.getImage() =3D=3D null) {
//h =3D gc.getFontMetrics().getHeight()+ (2 * (textMargin));
h =3D gc.getFont().getFontData().getHeight()+ (2 * (textMargin));
} else {
//h =3D Math.max(item.getImage().getBounds().height, =
gc.getFontMetrics().getHeight()+ (2 * textMargin));
h =3D Math.max(item.getImage().getBounds().height, =
gc.getFont().getFontData().getHeight()+ (2 * textMargin));
}
gc.setFont(selectedFont);
//h =3D Math.max(h, gc.getFontMetrics().getHeight() + (2 * =
textMargin));
h =3D Math.max(h, gc.getFont().getFontData().getHeight() + (2 * =
textMargin));
h +=3D 2 * margin;
if (h % 2 !=3D 0)
h++;
return new Point(wHint, h);
}
/**
* {@inheritDoc}
*/
public void paint(/* GC */GCCanvas gc, Object value) {
PShelfItem item =3D (PShelfItem) value;
// Color back =3D parent.getBackground();
Color fore =3D parent.getForeground();
if (isSelected()) {
gc.setForeground(selectedGradient1);
gc.setBackground(selectedGradient2);
} else {
if (isHover()) {
gc.setForeground(hoverGradient1);
gc.setBackground(hoverGradient2);
} else {
gc.setForeground(gradient1);
gc.setBackground(gradient2);
}
}
gc.fillGradientRectangle(getBounds().x, getBounds().y,
getBounds().width + 10, getBounds().height, /* true */false);
if ((parent.getStyle() & SWT.SIMPLE) !=3D 0) {
if (!isSelected()) {
gc.setForeground(lineColor);
gc.drawLine(0, getBounds().y, getBounds().width - 1, getBounds().y);
}
} else {
if (parent.getItems() !=3D item) {
gc.setForeground(lineColor);
gc.drawLine(0, getBounds().y, getBounds().width - 1, getBounds().y);
}
if (isSelected()) {
gc.setForeground(lineColor);
gc.drawLine(0, getBounds().y + getBounds().height - 1, =
getBounds().width - 1, getBounds().y + getBounds().height - 1);
}
}
boolean imageLeft =3D true;
if ((parent.getStyle() & SWT.SIMPLE) !=3D 0) {
imageLeft =3D !isSelected();
}
int x =3D 6;
if (item.getImage() !=3D null && imageLeft) {
int y2 =3D (getBounds().height - item.getImage().getBounds().height) =
/ 2;
if ((getBounds().height - item.getImage().getBounds().height) % 2 =
!=3D 0)
y2++;
gc.drawImage(item.getImage(), x, getBounds().y + y2);
x +=3D item.getImage().getBounds().width + spacing;
}
if (isSelected()) {
gc.setFont(selectedFont);
gc.setForeground(selectedForeground !=3D null ? selectedForeground : =
fore);
} else if (isHover()) {
gc.setFont(font);
gc.setForeground(hoverForeground !=3D null ? hoverForeground : fore);
} else {
gc.setFont(font);
gc.setForeground(foreground !=3D null ? foreground : fore);
}
// int y2 =3D (getBounds().height - gc.getFontMetrics().getHeight()) / =
2;
int y2 =3D (getBounds().height - =
gc.getFont().getFontData().getHeight()) / 2;
// if ((getBounds().height - gc.getFontMetrics().getHeight()) % 2 !=3D =
0)
if ((getBounds().height - gc.getFont().getFontData().getHeight()) % =
2 !=3D 0)
y2++;
int textWidth =3D getBounds().width - 12;
if (item.getImage() !=3D null) {
textWidth -=3D item.getImage().getBounds().width;
textWidth -=3D 6;
}
// gc.drawString(getShortString(gc, item.getText(), textWidth), x,
// getBounds().y + y2, true);
gc.drawText(getShortString(gc, item.getText(), textWidth), x, =
getBounds().y + y2 - 4);
if (item.getImage() !=3D null && !imageLeft) {
int y3 =3D (getBounds().height - item.getImage().getBounds().height) =
/ 2;
if ((getBounds().height - item.getImage().getBounds().height) % 2 =
!=3D 0)
y3++;
gc.drawImage(item.getImage(), getBounds().width - 6 - =
item.getImage().getBounds().width, getBounds().y + y3);
}
if (isFocus()) {
// gc.drawFocus(1, 1, getBounds().width - 2, getBounds().height -
// 1);
gc.drawRectangle(1, 1, getBounds().width - 2, getBounds().height - =
1);
}
}
public void initialize(Control control) {
this.parent =3D (PShelf) control;
FontData fd =3D parent.getFont().getFontData();
initialFont =3D new Font(parent.getDisplay(), fd.getName(), fd
.getHeight(), SWT.BOLD);
// parent.setFont(initialFont);
Color baseColor =3D =
parent.getDisplay().getSystemColor(SWT.COLOR_TITLE_BACKGROUN D_GRADIENT);
Color color1 =3D createNewBlendedColor(baseColor, =
parent.getDisplay().getSystemColor(SWT.COLOR_WHITE), 30);
baseColor =3D =
createNewBlendedColor(parent.getDisplay().getSystemColor(SWT .COLOR_TITLE_=
BACKGROUND_GRADIENT), parent.getDisplay()
.getSystemColor(SWT.COLOR_WHITE), 80);
Color color2 =3D createNewSaturatedColor(baseColor, .01f);
if ((parent.getStyle() & SWT.SIMPLE) !=3D 0) {
gradient1 =3D color1;
gradient2 =3D color2;
} else {
selectedGradient1 =3D color1;
selectedGradient2 =3D color2;
}
baseColor.dispose();
lineColor =3D =
createNewSaturatedColor(parent.getDisplay().getSystemColor(
SWT.COLOR_LIST_SELECTION), .02f);
baseColor =3D parent.getDisplay()
.getSystemColor(SWT.COLOR_LIST_SELECTION);
color1 =3D createNewBlendedColor(baseColor, parent.getDisplay()
.getSystemColor(SWT.COLOR_WHITE), 70);
baseColor =3D =
createNewBlendedColor(parent.getDisplay().getSystemColor(
SWT.COLOR_LIST_SELECTION), parent.getDisplay().getSystemColor(
SWT.COLOR_BLACK), 80);
color2 =3D createNewSaturatedColor(baseColor, .02f);
if ((parent.getStyle() & SWT.SIMPLE) !=3D 0) {
selectedGradient1 =3D color1;
selectedGradient2 =3D color2;
} else {
gradient1 =3D color1;
gradient2 =3D color2;
}
baseColor.dispose();
// initialOpenFont =3D =
FontUtils.createFont(parent.getFont(),4,SWT.BOLD);
if ((parent.getStyle() & SWT.SIMPLE) !=3D 0)
initialOpenFont =3D new Font(parent.getDisplay(), "Arial", 12,
SWT.BOLD);
else
initialOpenFont =3D new Font(parent.getDisplay(), initialFont
.getFontData());
font =3D initialFont;
selectedFont =3D initialOpenFont;
Color inverseColor =3D parent.getDisplay().getSystemColor(
SWT.COLOR_LIST_SELECTION_TEXT);
if ((parent.getStyle() & SWT.SIMPLE) !=3D 0)
selectedForeground =3D inverseColor;
else
foreground =3D inverseColor;
// the other color left null, foreground color of the parent will be
// used for it
baseColor =3D =
createNewReverseColor(parent.getDisplay().getSystemColor(
SWT.COLOR_TITLE_BACKGROUND));
hoverGradient1 =3D createNewBlendedColor(baseColor, =
parent.getDisplay()
.getSystemColor(SWT.COLOR_WHITE), 30);
Color baseColor2 =3D createNewBlendedColor(baseColor, =
parent.getDisplay()
.getSystemColor(SWT.COLOR_WHITE), 99);
hoverGradient2 =3D createNewSaturatedColor(baseColor2, .00f);
baseColor2.dispose();
baseColor.dispose();
initialColors =3D new Color[] { gradient1, gradient2, =
selectedGradient1,
selectedGradient2, hoverGradient1, hoverGradient2, lineColor };
}
public void dispose() {
initialFont.dispose();
initialOpenFont.dispose();
for (int i =3D 0; i < initialColors.length; i++) {
initialColors.dispose();
}
super.dispose();
}
public Color getLineColor() {
return lineColor;
}
public void setLineColor(Color lineColor) {
this.lineColor =3D lineColor;
}
public Font getFont() {
return font;
}
public void setFont(Font font) {
this.font =3D font;
}
public Color getGradient1() {
return gradient1;
}
public void setGradient1(Color gradient1) {
this.gradient1 =3D gradient1;
}
public Color getGradient2() {
return gradient2;
}
public void setGradient2(Color gradient2) {
this.gradient2 =3D gradient2;
}
public Color getHoverGradient1() {
return hoverGradient1;
}
public void setHoverGradient1(Color hoverGradient1) {
this.hoverGradient1 =3D hoverGradient1;
}
public Color getHoverGradient2() {
return hoverGradient2;
}
public void setHoverGradient2(Color hoverGradient2) {
this.hoverGradient2 =3D hoverGradient2;
}
public Font getSelectedFont() {
return selectedFont;
}
public void setSelectedFont(Font selectedFont) {
this.selectedFont =3D selectedFont;
}
public Color getSelectedForeground() {
return selectedForeground;
}
/**
* Sets text color for the selected item.
*=20
* @param selectedForeground
* Can be <code>null</code>, foreground color of the parent =
is
* used in that case.
*/
public void setSelectedForeground(Color selectedForeground) {
this.selectedForeground =3D selectedForeground;
}
public Color getHoverForeground() {
return hoverForeground;
}
/**
* Sets text color for the hovered item.
*=20
* @param hoverForeground
* Can be <code>null</code>, foreground color of the parent =
is
* used in that case.
*/
public void setHoverForeground(Color hoverForeground) {
this.hoverForeground =3D hoverForeground;
}
public Color getForeground() {
return foreground;
}
/**
* Sets text color for non-selected items.
*=20
* @param foreground
* Can be <code>null</code>, foreground color of the parent =
is
* used in that case.
*/
public void setForeground(Color foreground) {
this.foreground =3D foreground;
}
public Color getSelectedGradient1() {
return selectedGradient1;
}
public void setSelectedGradient1(Color selectedGradient1) {
this.selectedGradient1 =3D selectedGradient1;
}
public Color getSelectedGradient2() {
return selectedGradient2;
}
public void setSelectedGradient2(Color selectedGradient2) {
this.selectedGradient2 =3D selectedGradient2;
}
private static String getShortString(/* GC */GCCanvas gc, String t, int =
width) {
if (t =3D=3D null) {
return null;
}
if (t.equals("")) {
return "";
}
// if (width >=3D gc.stringExtent(t).x) {
if (width >=3D Graphics.stringExtent(gc.getFont(), t).x) {
return t;
}
// int w =3D gc.stringExtent("...").x;
int w =3D Graphics.stringExtent(gc.getFont(), "...").x;
String text =3D t;
int l =3D text.length();
int pivot =3D l / 2;
int s =3D pivot;
int e =3D pivot + 1;
while (s >=3D 0 && e < l) {
String s1 =3D text.substring(0, s);
String s2 =3D text.substring(e, l);
// int l1 =3D gc.stringExtent(s1).x;
int l1 =3D Graphics.stringExtent(gc.getFont(), s1).x;
// int l2 =3D gc.stringExtent(s2).x;
int l2 =3D Graphics.stringExtent(gc.getFont(), s2).x;
if (l1 + w + l2 < width) {
text =3D s1 + "..." + s2;
break;
}
s--;
e++;
}
if (s =3D=3D 0 || e =3D=3D l) {
text =3D text.substring(0, 1) + "..." + text.substring(l - 1, l);
}
return text;
}
private static int blend(int v1, int v2, int ratio) {
return (ratio * v1 + (100 - ratio) * v2) / 100;
}
private static RGB blend(RGB c1, RGB c2, int ratio) {
int r =3D blend(c1.red, c2.red, ratio);
int g =3D blend(c1.green, c2.green, ratio);
int b =3D blend(c1.blue, c2.blue, ratio);
return new RGB(r, g, b);
}
private static Color createNewBlendedColor(Color c1, Color c2, int =
ratio) {
Color newColor =3D new Color(Display.getCurrent(), blend(c1.getRGB(), =
c2
.getRGB(), ratio));
return newColor;
}
private static Color createNewReverseColor(Color c) {
Color newColor =3D new Color(Display.getCurrent(), 255 - c.getRed(),
255 - c.getGreen(), 255 - c.getBlue());
return newColor;
}
private static RGB saturate(RGB rgb, float saturation) {
float[] hsb =3D rgb.getHSB();
hsb +=3D saturation;
if (hsb > 1.0f) {
hsb =3D 1.0f;
}
if (hsb < 0f) {
hsb =3D 0f;
}
// hue is 0.0..360.0, saturation and brightness 0.0..1.0
hsb +=3D 360.0 * saturation;
if (hsb > 360.0f) {
hsb =3D 360.0f;
}
if (hsb < 0f) {
hsb =3D 0f;
}
return new RGB(hsb, hsb, hsb);
}
private static Color createNewSaturatedColor(Color c, float saturation) =
{
RGB newRGB =3D saturate(c.getRGB(), saturation);
return new Color(Display.getCurrent(), newRGB);
}
}
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------=_NextPart_000_000A_01CAAA5A.3B442260--
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