Mercurial > projects > dwt-mac
diff dwt/custom/CLabel.d @ 41:6337764516f1
Sync dwt/custom with dwt-linux (took copy of complete folder)
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 07 Oct 2008 16:29:55 +0200 |
| parents | f565d3a95c0a |
| children |
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--- a/dwt/custom/CLabel.d Tue Oct 07 14:41:31 2008 +0200 +++ b/dwt/custom/CLabel.d Tue Oct 07 16:29:55 2008 +0200 @@ -1,5 +1,5 @@ /******************************************************************************* - * Copyright (c) 2000, 2006 IBM Corporation and others. + * Copyright (c) 2000, 2008 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 @@ -7,12 +7,12 @@ * * Contributors: * IBM Corporation - initial API and implementation - * * Port to the D programming language: - * Jacob Carlborg <jacob.carlborg@gmail.com> + * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwt.custom.CLabel; + import dwt.DWT; import dwt.DWTException; import dwt.accessibility.ACC; @@ -38,13 +38,15 @@ import dwt.widgets.Composite; import dwt.widgets.Control; import dwt.widgets.Display; +import dwt.dwthelper.utils; -import dwt.dwthelper.utils; +static import tango.text.Unicode; +static import tango.text.convert.Utf; /** * A Label which supports aligned text and/or an image and different border styles. * <p> - * If there is not enough space a CLabel uses the following strategy to fit the + * If there is not enough space a CLabel uses the following strategy to fit the * information into the available space: * <pre> * ignores the indent in left align mode @@ -59,22 +61,26 @@ * <dt><b>Events:</b> * <dd></dd> * </dl> - * + * * </p><p> * IMPORTANT: This class is <em>not</em> intended to be subclassed. * </p> + * + * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: CustomControlExample</a> + * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> */ -public class CLabel : Canvas -{ +public class CLabel : Canvas { + + alias Canvas.computeSize computeSize; /** Gap between icon and text */ private static const int GAP = 5; /** Left and right margins */ private static const int INDENT = 3; - /** a String inserted in the middle of text that has been shortened */ + /** a string inserted in the middle of text that has been shortened */ private static const String ELLIPSIS = "..."; //$NON-NLS-1$ // could use the ellipsis glyph on some platforms "\u2026" - /** the alignnment. Either CENTER, RIGHT, LEFT. Default is LEFT*/ - private int alignn = DWT.LEFT; + /** the alignment. Either CENTER, RIGHT, LEFT. Default is LEFT*/ + private int align_ = DWT.LEFT; private int hIndent = INDENT; private int vIndent = INDENT; /** the current text */ @@ -84,7 +90,7 @@ // The tooltip is used for two purposes - the application can set // a tooltip or the tooltip can be used to display the full text when the // the text has been truncated due to the label being too short. - // The appToolTip stores the tooltip set by the application. Control.tooltiptext + // The appToolTip stores the tooltip set by the application. Control.tooltiptext // contains whatever tooltip is currently being displayed. private String appToolTipText; @@ -94,947 +100,750 @@ private bool gradientVertical; private Color background; - private static int - DRAW_FLAGS = DWT.DRAW_MNEMONIC | DWT.DRAW_TAB | DWT.DRAW_TRANSPARENT | DWT.DRAW_DELIMITER; + private static int DRAW_FLAGS = DWT.DRAW_MNEMONIC | DWT.DRAW_TAB | DWT.DRAW_TRANSPARENT | DWT.DRAW_DELIMITER; - /** - * Constructs a new instance of this class given its parent - * and a style value describing its behavior and appearance. - * <p> - * The style value is either one of the style constants defined in - * class <code>DWT</code> which is applicable to instances of this - * class, or must be built by <em>bitwise OR</em>'ing together - * (that is, using the <code>int</code> "|" operator) two or more - * of those <code>DWT</code> style constants. The class description - * lists the style constants that are applicable to the class. - * Style bits are also inherited from superclasses. - * </p> - * - * @param parent a widget which will be the parent of the new instance (cannot be null) - * @param style the style of widget to construct - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> - * </ul> - * @exception DWTException <ul> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> - * </ul> - * - * @see DWT#LEFT - * @see DWT#RIGHT - * @see DWT#CENTER - * @see DWT#SHADOW_IN - * @see DWT#SHADOW_OUT - * @see DWT#SHADOW_NONE - * @see #getStyle() - */ - public this (Composite parent, int style) - { - super(parent, checkStyle(style)); - if ((style & (DWT.CENTER | DWT.RIGHT)) is 0) - style |= DWT.LEFT; - if ((style & DWT.CENTER) !is 0) - alignn = DWT.CENTER; - if ((style & DWT.RIGHT) !is 0) - alignn = DWT.RIGHT; - if ((style & DWT.LEFT) !is 0) - alignn = DWT.LEFT; +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a widget which will be the parent of the new instance (cannot be null) + * @param style the style of widget to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + * + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#CENTER + * @see DWT#SHADOW_IN + * @see DWT#SHADOW_OUT + * @see DWT#SHADOW_NONE + * @see #getStyle() + */ +public this(Composite parent, int style) { + super(parent, checkStyle(style)); + if ((style & (DWT.CENTER | DWT.RIGHT)) is 0) style |= DWT.LEFT; + if ((style & DWT.CENTER) !is 0) align_ = DWT.CENTER; + if ((style & DWT.RIGHT) !is 0) align_ = DWT.RIGHT; + if ((style & DWT.LEFT) !is 0) align_ = DWT.LEFT; - addPaintListener(new class PaintListener - { - public void paintControl (PaintEvent event) - { - onPaint(event); - } - }); + addPaintListener(new class() PaintListener{ + public void paintControl(PaintEvent event) { + onPaint(event); + } + }); - addDisposeListener(new class DisposeListener - { - public void widgetDisposed (DisposeEvent event) - { - onDispose(event); + addDisposeListener(new class() DisposeListener{ + public void widgetDisposed(DisposeEvent event) { + onDispose(event); + } + }); + + addTraverseListener(new class() TraverseListener { + public void keyTraversed(TraverseEvent event) { + if (event.detail is DWT.TRAVERSE_MNEMONIC) { + onMnemonic(event); } - }); + } + }); + + initAccessible(); - addTraverseListener(new class TraverseListener - { - public void keyTraversed (TraverseEvent event) - { - if (event.detail is DWT.TRAVERSE_MNEMONIC) - { - onMnemonic(event); - } - } - }); - - initAccessible(); - - } +} +/** + * Check the style bits to ensure that no invalid styles are applied. + */ +private static int checkStyle (int style) { + if ((style & DWT.BORDER) !is 0) style |= DWT.SHADOW_IN; + int mask = DWT.SHADOW_IN | DWT.SHADOW_OUT | DWT.SHADOW_NONE | DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; + style = style & mask; + return style |= DWT.NO_FOCUS | DWT.DOUBLE_BUFFERED; +} - /** - * Check the style bits to ensure that no invalid styles are applied. - */ - private static int checkStyle (int style) - { - if ((style & DWT.BORDER) !is 0) - style |= DWT.SHADOW_IN; - int - mask = DWT.SHADOW_IN | DWT.SHADOW_OUT | DWT.SHADOW_NONE | DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; - style = style & mask; - return style |= DWT.NO_FOCUS | DWT.DOUBLE_BUFFERED; - } - - //protected void checkSubclass () { - // String name = getClass().getName (); - // String validName = CLabel.class.getName(); - // if (!validName.opEquals(name)) { - // DWT.error (DWT.ERROR_INVALID_SUBCLASS); - // } - //} +//protected void checkSubclass () { +// String name = getClass().getName (); +// String validName = CLabel.class.getName(); +// if (!validName.equals(name)) { +// DWT.error (DWT.ERROR_INVALID_SUBCLASS); +// } +//} - public Point computeSize (int wHint, int hHint, bool changed) - { - checkWidget(); - Point e = getTotalSize(image, text); - if (wHint is DWT.DEFAULT) - { - e.x += 2 * hIndent; - } - else - { - e.x = wHint; - } - if (hHint is DWT.DEFAULT) - { - e.y += 2 * vIndent; - } - else - { - e.y = hHint; - } - return e; +public override Point computeSize(int wHint, int hHint, bool changed) { + checkWidget(); + Point e = getTotalSize(image, text); + if (wHint is DWT.DEFAULT){ + e.x += 2*hIndent; + } else { + e.x = wHint; } + if (hHint is DWT.DEFAULT) { + e.y += 2*vIndent; + } else { + e.y = hHint; + } + return e; +} +/** + * Draw a rectangle in the given colors. + */ +private void drawBevelRect(GC gc, int x, int y, int w, int h, Color topleft, Color bottomright) { + gc.setForeground(bottomright); + gc.drawLine(x+w, y, x+w, y+h); + gc.drawLine(x, y+h, x+w, y+h); - /** - * Draw a rectangle in the given colors. - */ - private void drawBevelRect (GC gc, int x, int y, int w, int h, - Color topleft, Color bottomright) - { - gc.setForeground(bottomright); - gc.drawLine(x + w, y, x + w, y + h); - gc.drawLine(x, y + h, x + w, y + h); - - gc.setForeground(topleft); - gc.drawLine(x, y, x + w - 1, y); - gc.drawLine(x, y, x, y + h - 1); - } + gc.setForeground(topleft); + gc.drawLine(x, y, x+w-1, y); + gc.drawLine(x, y, x, y+h-1); +} +/* + * Return the lowercase of the first non-'&' character following + * an '&' character in the given string. If there are no '&' + * characters in the given string, return '\0'. + */ +dchar _findMnemonic (String string) { + if (string is null) return '\0'; + int index = 0; + int length = string.length; + do { + while (index < length && string[index] !is '&') index++; + if (++index >= length) return '\0'; + if (string[index] !is '&') { + dchar[1] tmp; uint ate; + dchar[] tmp2 = tango.text.convert.Utf.toString32( string[index .. Math.min( index + 4, string.length ) ], tmp, &ate ); + assert( tmp2.length == 1 ); + return tango.text.Unicode.toLower( tmp2 )[0]; + } + index++; + } while (index < length); + return '\0'; +} +/** + * Returns the alignment. + * The alignment style (LEFT, CENTER or RIGHT) is returned. + * + * @return DWT.LEFT, DWT.RIGHT or DWT.CENTER + */ +public int getAlignment() { + //checkWidget(); + return align_; +} +/** + * Return the CLabel's image or <code>null</code>. + * + * @return the image of the label or null + */ +public Image getImage() { + //checkWidget(); + return image; +} +/** + * Compute the minimum size. + */ +private Point getTotalSize(Image image, String text) { + Point size = new Point(0, 0); - /* - * Return the lowercase of the first non-'&' character following - * an '&' character in the given String. If there are no '&' - * characters in the given String, return '\0'. - */ - char _findMnemonic (String str) - { - if (str is null) - return '\0'; - int index = 0; - int length = str.length(); - do - { - while (index < length && str.charAt(index) !is '&') - index++; - if (++index >= length) - return '\0'; - if (str.charAt(index) !is '&') - return CharacterToLower(str.charAt(index)); - index++; - } while (index < length); - return '\0'; - } - - /** - * Returns the alignnment. - * The alignnment style (LEFT, CENTER or RIGHT) is returned. - * - * @return DWT.LEFT, DWT.RIGHT or DWT.CENTER - */ - public int getAlignment () - { - //checkWidget(); - return alignn; + if (image !is null) { + Rectangle r = image.getBounds(); + size.x += r.width; + size.y += r.height; } - /** - * Return the CLabel's image or <code>null</code>. - * - * @return the image of the label or null - */ - public Image getImage () - { - //checkWidget(); - return image; + GC gc = new GC(this); + if (text !is null && text.length > 0) { + Point e = gc.textExtent(text, DRAW_FLAGS); + size.x += e.x; + size.y = Math.max(size.y, e.y); + if (image !is null) size.x += GAP; + } else { + size.y = Math.max(size.y, gc.getFontMetrics().getHeight()); } + gc.dispose(); + + return size; +} +public override int getStyle () { + int style = super.getStyle(); + switch (align_) { + case DWT.RIGHT: style |= DWT.RIGHT; break; + case DWT.CENTER: style |= DWT.CENTER; break; + case DWT.LEFT: style |= DWT.LEFT; break; + default: + } + return style; +} - /** - * Compute the minimum size. - */ - private Point getTotalSize (Image image, String text) - { - Point size = new Point(0, 0); +/** + * Return the Label's text. + * + * @return the text of the label or null + */ +public String getText() { + //checkWidget(); + return text; +} +public override String getToolTipText () { + checkWidget(); + return appToolTipText; +} +private void initAccessible() { + Accessible accessible = getAccessible(); + accessible.addAccessibleListener(new class() AccessibleAdapter { + public void getName(AccessibleEvent e) { + e.result = getText(); + } - if (image !is null) - { - Rectangle r = image.getBounds(); - size.x += r.width; - size.y += r.height; + public void getHelp(AccessibleEvent e) { + e.result = getToolTipText(); + } + + public void getKeyboardShortcut(AccessibleEvent e) { + dchar mnemonic = _findMnemonic(this.outer.text); + if (mnemonic !is '\0') { + dchar[1] d; + d[0] = mnemonic; + e.result = "Alt+" ~ tango.text.convert.Utf.toString(d); //$NON-NLS-1$ + } + } + }); + + accessible.addAccessibleControlListener(new class() AccessibleControlAdapter { + public void getChildAtPoint(AccessibleControlEvent e) { + e.childID = ACC.CHILDID_SELF; } - GC gc = new GC(this); - if (text !is null && text.length() > 0) - { - Point e = gc.textExtent(text, DRAW_FLAGS); - size.x += e.x; - size.y = Math.max(size.y, e.y); - if (image !is null) - size.x += GAP; + public void getLocation(AccessibleControlEvent e) { + Rectangle rect = getDisplay().map(getParent(), null, getBounds()); + e.x = rect.x; + e.y = rect.y; + e.width = rect.width; + e.height = rect.height; } - else - { - size.y = Math.max(size.y, gc.getFontMetrics().getHeight()); - } - gc.dispose(); - - return size; - } - public int getStyle () - { - int style = super.getStyle(); - switch (alignn) - { - case DWT.RIGHT: - style |= DWT.RIGHT; - break; - case DWT.CENTER: - style |= DWT.CENTER; - break; - case DWT.LEFT: - style |= DWT.LEFT; - break; + public void getChildCount(AccessibleControlEvent e) { + e.detail = 0; } - return style; - } + + public void getRole(AccessibleControlEvent e) { + e.detail = ACC.ROLE_LABEL; + } - /** - * Return the Label's text. - * - * @return the text of the label or null - */ - public String getText () - { - //checkWidget(); - return text; - } - - public String getToolTipText () - { - checkWidget(); - return appToolTipText; - } - - private void initAccessible () - { - Accessible accessible = getAccessible(); - accessible.addAccessibleListener(new class AccessibleAdapter - { - public void getName (AccessibleEvent e) - { - e.result = getText(); - } - - public void getHelp (AccessibleEvent e) - { - e.result = getToolTipText(); - } - - public void getKeyboardShortcut (AccessibleEvent e) - { - char mnemonic = _findMnemonic(this.text); - if (mnemonic !is '\0') - { - e.result = "Alt+" + mnemonic; //$NON-NLS-1$ + public void getState(AccessibleControlEvent e) { + e.detail = ACC.STATE_READONLY; + } + }); +} +void onDispose(DisposeEvent event) { + gradientColors = null; + gradientPercents = null; + backgroundImage = null; + text = null; + image = null; + appToolTipText = null; +} +void onMnemonic(TraverseEvent event) { + dchar mnemonic = _findMnemonic(text); + if (mnemonic is '\0') return; + dchar[1] d; uint ate; + auto r = tango.text.convert.Utf.toString32( [event.character][], d, &ate ); + if (tango.text.Unicode.toLower(r)[0] !is mnemonic) return; + Composite control = this.getParent(); + while (control !is null) { + Control [] children = control.getChildren(); + int index = 0; + while (index < children.length) { + if (children [index] is this) break; + index++; + } + index++; + if (index < children.length) { + if (children [index].setFocus ()) { + event.doit = true; + event.detail = DWT.TRAVERSE_NONE; } } - } ); - - accessible.addAccessibleControlListener(new class - AccessibleControlAdapter - { - public void getChildAtPoint (AccessibleControlEvent e) - { - e.childID = ACC.CHILDID_SELF; - } + control = control.getParent(); + } +} - public void getLocation (AccessibleControlEvent e) - { - Rectangle rect = getDisplay().map(getParent(), null, - getBounds()); - e.x = rect.x; - e.y = rect.y; - e.width = rect.width; - e.height = rect.height; - } - - public void getChildCount (AccessibleControlEvent e) - { - e.detail = 0; - } - - public void getRole (AccessibleControlEvent e) - { - e.detail = ACC.ROLE_LABEL; - } - - public void getState (AccessibleControlEvent e) - { - e.detail = ACC.STATE_READONLY; - } - }); - } +void onPaint(PaintEvent event) { + Rectangle rect = getClientArea(); + if (rect.width is 0 || rect.height is 0) return; - void onDispose (DisposeEvent event) - { - gradientColors = null; - gradientPercents = null; - backgroundImage = null; - text = null; - image = null; - appToolTipText = null; - } - - void onMnemonic (TraverseEvent event) - { - char mnemonic = _findMnemonic(text); - if (mnemonic is '\0') - return; - if (CharacterToLower(event.character) !is mnemonic) - return; - Composite control = this.getParent(); - while (control !is null) - { - Control[] children = control.getChildren(); - int index = 0; - while (index < children.length) - { - if (children[index] is this) - break; - index++; - } - index++; - if (index < children.length) - { - if (children[index].setFocus()) - { - event.doit = true; - event.detail = DWT.TRAVERSE_NONE; - } - } - control = control.getParent(); + bool shortenText_ = false; + String t = text; + Image img = image; + int availableWidth = Math.max(0, rect.width - 2*hIndent); + Point extent = getTotalSize(img, t); + if (extent.x > availableWidth) { + img = null; + extent = getTotalSize(img, t); + if (extent.x > availableWidth) { + shortenText_ = true; } } - void onPaint (PaintEvent event) - { - Rectangle rect = getClientArea(); - if (rect.width is 0 || rect.height is 0) - return; - - bool shortenText = false; - String t = text; - Image img = image; - int availableWidth = Math.max(0, rect.width - 2 * hIndent); - Point extent = getTotalSize(img, t); - if (extent.x > availableWidth) - { - img = null; - extent = getTotalSize(img, t); - if (extent.x > availableWidth) - { - shortenText = true; - } - } + GC gc = event.gc; + String[] lines = text is null ? null : splitString(text); - GC gc = event.gc; - String[] lines = text is null ? null : splitString(text); - - // shorten the text - if (shortenText) - { - extent.x = 0; - for (int i = 0; i < lines.length; i++) - { - Point e = gc.textExtent(lines[i], DRAW_FLAGS); - if (e.x > availableWidth) - { - lines[i] = shortenText(gc, lines[i], availableWidth); - extent.x = Math.max(extent.x, - getTotalSize(null, lines[i]).x); - } - else - { - extent.x = Math.max(extent.x, e.x); - } - } - if (appToolTipText is null) - { - super.setToolTipText(text); + // shorten the text + if (shortenText_) { + extent.x = 0; + for(int i = 0; i < lines.length; i++) { + Point e = gc.textExtent(lines[i], DRAW_FLAGS); + if (e.x > availableWidth) { + lines[i] = shortenText(gc, lines[i], availableWidth); + extent.x = Math.max(extent.x, getTotalSize(null, lines[i]).x); + } else { + extent.x = Math.max(extent.x, e.x); } } - else - { - super.setToolTipText(appToolTipText); + if (appToolTipText is null) { + super.setToolTipText(text); } - - // determine horizontal position - int x = rect.x + hIndent; - if (alignn is DWT.CENTER) - { - x = (rect.width - extent.x) / 2; - } - if (alignn is DWT.RIGHT) - { - x = rect.width - hIndent - extent.x; - } + } else { + super.setToolTipText(appToolTipText); + } - // draw a background image behind the text - try - { - if (backgroundImage !is null) - { - // draw a background image behind the text - Rectangle imageRect = backgroundImage.getBounds(); - // tile image to fill space - gc.setBackground(getBackground()); - gc.fillRectangle(rect); - int xPos = 0; - while (xPos < rect.width) - { - int yPos = 0; - while (yPos < rect.height) - { - gc.drawImage(backgroundImage, xPos, yPos); - yPos += imageRect.height; - } - xPos += imageRect.width; - } - } - else if (gradientColors !is null) - { - // draw a gradient behind the text - const Color oldBackground = gc.getBackground(); - if (gradientColors.length is 1) - { - if (gradientColors[0] !is null) - gc.setBackground(gradientColors[0]); - gc.fillRectangle(0, 0, rect.width, rect.height); + // determine horizontal position + int x = rect.x + hIndent; + if (align_ is DWT.CENTER) { + x = (rect.width - extent.x)/2; + } + if (align_ is DWT.RIGHT) { + x = rect.width - hIndent - extent.x; + } + + // draw a background image behind the text + try { + if (backgroundImage !is null) { + // draw a background image behind the text + Rectangle imageRect = backgroundImage.getBounds(); + // tile image to fill space + gc.setBackground(getBackground()); + gc.fillRectangle(rect); + int xPos = 0; + while (xPos < rect.width) { + int yPos = 0; + while (yPos < rect.height) { + gc.drawImage(backgroundImage, xPos, yPos); + yPos += imageRect.height; } - else - { - const Color oldForeground = gc.getForeground(); - Color lastColor = gradientColors[0]; - if (lastColor is null) - lastColor = oldBackground; - int pos = 0; - for (int i = 0; i < gradientPercents.length; ++i) - { - gc.setForeground(lastColor); - lastColor = gradientColors[i + 1]; - if (lastColor is null) - lastColor = oldBackground; - gc.setBackground(lastColor); - if (gradientVertical) - { - const int - gradientHeight = (gradientPercents[i] * rect.height / 100) - pos; - gc.fillGradientRectangle(0, pos, rect.width, - gradientHeight, true); - pos += gradientHeight; - } - else - { - const int - gradientWidth = (gradientPercents[i] * rect.width / 100) - pos; - gc.fillGradientRectangle(pos, 0, gradientWidth, - rect.height, false); - pos += gradientWidth; - } + xPos += imageRect.width; + } + } else if (gradientColors !is null) { + // draw a gradient behind the text + final Color oldBackground = gc.getBackground(); + if (gradientColors.length is 1) { + if (gradientColors[0] !is null) gc.setBackground(gradientColors[0]); + gc.fillRectangle(0, 0, rect.width, rect.height); + } else { + final Color oldForeground = gc.getForeground(); + Color lastColor = gradientColors[0]; + if (lastColor is null) lastColor = oldBackground; + int pos = 0; + for (int i = 0; i < gradientPercents.length; ++i) { + gc.setForeground(lastColor); + lastColor = gradientColors[i + 1]; + if (lastColor is null) lastColor = oldBackground; + gc.setBackground(lastColor); + if (gradientVertical) { + final int gradientHeight = (gradientPercents[i] * rect.height / 100) - pos; + gc.fillGradientRectangle(0, pos, rect.width, gradientHeight, true); + pos += gradientHeight; + } else { + final int gradientWidth = (gradientPercents[i] * rect.width / 100) - pos; + gc.fillGradientRectangle(pos, 0, gradientWidth, rect.height, false); + pos += gradientWidth; } - if (gradientVertical && pos < rect.height) - { - gc.setBackground(getBackground()); - gc.fillRectangle(0, pos, rect.width, rect.height - pos); - } - if (!gradientVertical && pos < rect.width) - { - gc.setBackground(getBackground()); - gc.fillRectangle(pos, 0, rect.width - pos, rect.height); - } - gc.setForeground(oldForeground); + } + if (gradientVertical && pos < rect.height) { + gc.setBackground(getBackground()); + gc.fillRectangle(0, pos, rect.width, rect.height - pos); } - gc.setBackground(oldBackground); + if (!gradientVertical && pos < rect.width) { + gc.setBackground(getBackground()); + gc.fillRectangle(pos, 0, rect.width - pos, rect.height); + } + gc.setForeground(oldForeground); } - else - { - if (background !is null || (getStyle() & DWT.DOUBLE_BUFFERED) is 0) - { - gc.setBackground(getBackground()); - gc.fillRectangle(rect); - } - } - } - catch (DWTException e) - { - if ((getStyle() & DWT.DOUBLE_BUFFERED) is 0) - { + gc.setBackground(oldBackground); + } else { + if (background !is null || (getStyle() & DWT.DOUBLE_BUFFERED) is 0) { gc.setBackground(getBackground()); gc.fillRectangle(rect); } } + } catch (DWTException e) { + if ((getStyle() & DWT.DOUBLE_BUFFERED) is 0) { + gc.setBackground(getBackground()); + gc.fillRectangle(rect); + } + } - // draw border - int style = getStyle(); - if ((style & DWT.SHADOW_IN) !is 0 || (style & DWT.SHADOW_OUT) !is 0) - { - paintBorder(gc, rect); - } + // draw border + int style = getStyle(); + if ((style & DWT.SHADOW_IN) !is 0 || (style & DWT.SHADOW_OUT) !is 0) { + paintBorder(gc, rect); + } - // draw the image - if (img !is null) - { - Rectangle imageRect = img.getBounds(); - gc.drawImage(img, 0, 0, imageRect.width, imageRect.height, x, - (rect.height - imageRect.height) / 2, imageRect.width, - imageRect.height); - x += imageRect.width + GAP; - extent.x -= imageRect.width + GAP; + // draw the image + if (img !is null) { + Rectangle imageRect = img.getBounds(); + gc.drawImage(img, 0, 0, imageRect.width, imageRect.height, + x, (rect.height-imageRect.height)/2, imageRect.width, imageRect.height); + x += imageRect.width + GAP; + extent.x -= imageRect.width + GAP; + } + // draw the text + if (lines !is null) { + int lineHeight = gc.getFontMetrics().getHeight(); + int textHeight = lines.length * lineHeight; + int lineY = Math.max(vIndent, rect.y + (rect.height - textHeight) / 2); + gc.setForeground(getForeground()); + for (int i = 0; i < lines.length; i++) { + int lineX = x; + if (lines.length > 1) { + if (align_ is DWT.CENTER) { + int lineWidth = gc.textExtent(lines[i], DRAW_FLAGS).x; + lineX = x + Math.max(0, (extent.x - lineWidth) / 2); + } + if (align_ is DWT.RIGHT) { + int lineWidth = gc.textExtent(lines[i], DRAW_FLAGS).x; + lineX = Math.max(x, rect.x + rect.width - hIndent - lineWidth); + } + } + gc.drawText(lines[i], lineX, lineY, DRAW_FLAGS); + lineY += lineHeight; } - // draw the text - if (lines !is null) - { - int lineHeight = gc.getFontMetrics().getHeight(); - int textHeight = lines.length * lineHeight; - int lineY = Math.max(vIndent, - rect.y + (rect.height - textHeight) / 2); - gc.setForeground(getForeground()); - for (int i = 0; i < lines.length; i++) - { - int lineX = x; - if (lines.length > 1) - { - if (alignn is DWT.CENTER) - { - int lineWidth = gc.textExtent(lines[i], DRAW_FLAGS).x; - lineX = x + Math.max(0, (extent.x - lineWidth) / 2); - } - if (alignn is DWT.RIGHT) - { - int lineWidth = gc.textExtent(lines[i], DRAW_FLAGS).x; - lineX = Math.max(x, - rect.x + rect.width - hIndent - lineWidth); - } - } - gc.drawText(lines[i], lineX, lineY, DRAW_FLAGS); - lineY += lineHeight; + } +} +/** + * Paint the Label's border. + */ +private void paintBorder(GC gc, Rectangle r) { + Display disp= getDisplay(); + + Color c1 = null; + Color c2 = null; + + int style = getStyle(); + if ((style & DWT.SHADOW_IN) !is 0) { + c1 = disp.getSystemColor(DWT.COLOR_WIDGET_NORMAL_SHADOW); + c2 = disp.getSystemColor(DWT.COLOR_WIDGET_HIGHLIGHT_SHADOW); + } + if ((style & DWT.SHADOW_OUT) !is 0) { + c1 = disp.getSystemColor(DWT.COLOR_WIDGET_LIGHT_SHADOW); + c2 = disp.getSystemColor(DWT.COLOR_WIDGET_NORMAL_SHADOW); + } + + if (c1 !is null && c2 !is null) { + gc.setLineWidth(1); + drawBevelRect(gc, r.x, r.y, r.width-1, r.height-1, c1, c2); + } +} +/** + * Set the alignment of the CLabel. + * Use the values LEFT, CENTER and RIGHT to align image and text within the available space. + * + * @param align the alignment style of LEFT, RIGHT or CENTER + * + * @exception DWTException <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> + * <li>ERROR_INVALID_ARGUMENT - if the value of align is not one of DWT.LEFT, DWT.RIGHT or DWT.CENTER</li> + * </ul> + */ +public void setAlignment(int align_) { + checkWidget(); + if (align_ !is DWT.LEFT && align_ !is DWT.RIGHT && align_ !is DWT.CENTER) { + DWT.error(DWT.ERROR_INVALID_ARGUMENT); + } + if (this.align_ !is align_) { + this.align_ = align_; + redraw(); + } +} + +public override void setBackground (Color color) { + super.setBackground (color); + // Are these settings the same as before? + if (backgroundImage is null && + gradientColors is null && + gradientPercents is null) { + if (color is null) { + if (background is null) return; + } else { + if (color ==/*eq*/ background) return; + } + } + background = color; + backgroundImage = null; + gradientColors = null; + gradientPercents = null; + redraw (); +} + +/** + * Specify a gradient of colours to be drawn in the background of the CLabel. + * <p>For example, to draw a gradient that varies from dark blue to blue and then to + * white and stays white for the right half of the label, use the following call + * to setBackground:</p> + * <pre> + * clabel.setBackground(new Color[]{display.getSystemColor(DWT.COLOR_DARK_BLUE), + * display.getSystemColor(DWT.COLOR_BLUE), + * display.getSystemColor(DWT.COLOR_WHITE), + * display.getSystemColor(DWT.COLOR_WHITE)}, + * new int[] {25, 50, 100}); + * </pre> + * + * @param colors an array of Color that specifies the colors to appear in the gradient + * in order of appearance from left to right; The value <code>null</code> + * clears the background gradient; the value <code>null</code> can be used + * inside the array of Color to specify the background color. + * @param percents an array of integers between 0 and 100 specifying the percent of the width + * of the widget at which the color should change; the size of the percents + * array must be one less than the size of the colors array. + * + * @exception DWTException <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> + * <li>ERROR_INVALID_ARGUMENT - if the values of colors and percents are not consistent</li> + * </ul> + */ +public void setBackground(Color[] colors, int[] percents) { + setBackground(colors, percents, false); +} +/** + * Specify a gradient of colours to be drawn in the background of the CLabel. + * <p>For example, to draw a gradient that varies from dark blue to white in the vertical, + * direction use the following call + * to setBackground:</p> + * <pre> + * clabel.setBackground(new Color[]{display.getSystemColor(DWT.COLOR_DARK_BLUE), + * display.getSystemColor(DWT.COLOR_WHITE)}, + * new int[] {100}, true); + * </pre> + * + * @param colors an array of Color that specifies the colors to appear in the gradient + * in order of appearance from left/top to right/bottom; The value <code>null</code> + * clears the background gradient; the value <code>null</code> can be used + * inside the array of Color to specify the background color. + * @param percents an array of integers between 0 and 100 specifying the percent of the width/height + * of the widget at which the color should change; the size of the percents + * array must be one less than the size of the colors array. + * @param vertical indicate the direction of the gradient. True is vertical and false is horizontal. + * + * @exception DWTException <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> + * <li>ERROR_INVALID_ARGUMENT - if the values of colors and percents are not consistent</li> + * </ul> + * + * @since 3.0 + */ +public void setBackground(Color[] colors, int[] percents, bool vertical) { + checkWidget(); + if (colors !is null) { + if (percents is null || percents.length !is colors.length - 1) { + DWT.error(DWT.ERROR_INVALID_ARGUMENT); + } + if (getDisplay().getDepth() < 15) { + // Don't use gradients on low color displays + colors = [colors[colors.length - 1]]; + percents = null; + } + for (int i = 0; i < percents.length; i++) { + if (percents[i] < 0 || percents[i] > 100) { + DWT.error(DWT.ERROR_INVALID_ARGUMENT); + } + if (i > 0 && percents[i] < percents[i-1]) { + DWT.error(DWT.ERROR_INVALID_ARGUMENT); } } } - /** - * Paint the Label's border. - */ - private void paintBorder (GC gc, Rectangle r) - { - Display disp = getDisplay(); - - Color c1 = null; - Color c2 = null; - - int style = getStyle(); - if ((style & DWT.SHADOW_IN) !is 0) - { - c1 = disp.getSystemColor(DWT.COLOR_WIDGET_NORMAL_SHADOW); - c2 = disp.getSystemColor(DWT.COLOR_WIDGET_HIGHLIGHT_SHADOW); - } - if ((style & DWT.SHADOW_OUT) !is 0) - { - c1 = disp.getSystemColor(DWT.COLOR_WIDGET_LIGHT_SHADOW); - c2 = disp.getSystemColor(DWT.COLOR_WIDGET_NORMAL_SHADOW); - } - - if (c1 !is null && c2 !is null) - { - gc.setLineWidth(1); - drawBevelRect(gc, r.x, r.y, r.width - 1, r.height - 1, c1, c2); - } - } - - /** - * Set the alignnment of the CLabel. - * Use the values LEFT, CENTER and RIGHT to alignn image and text within the available space. - * - * @param alignn the alignnment style of LEFT, RIGHT or CENTER - * - * @exception DWTException <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> - * <li>ERROR_INVALID_ARGUMENT - if the value of alignn is not one of DWT.LEFT, DWT.RIGHT or DWT.CENTER</li> - * </ul> - */ - public void setAlignment (int alignn) - { - checkWidget(); - if (alignn !is DWT.LEFT && alignn !is DWT.RIGHT && alignn !is DWT.CENTER) - { - DWT.error(DWT.ERROR_INVALID_ARGUMENT); - } - if (this.alignn !is alignn) - { - this.alignn = alignn; - redraw(); - } - } - - public void setBackground (Color color) - { - super.setBackground(color); - // Are these settings the same as before? - if (backgroundImage is null && gradientColors is null && gradientPercents is null) - { - if (color is null) - { - if (background is null) - return; - } - else - { - if (color.opEquals(background)) - return; + // Are these settings the same as before? + final Color background = getBackground(); + if (backgroundImage is null) { + if ((gradientColors !is null) && (colors !is null) && + (gradientColors.length is colors.length)) { + bool same = false; + for (int i = 0; i < gradientColors.length; i++) { + same = (gradientColors[i] is colors[i]) || + ((gradientColors[i] is null) && (colors[i] is background)) || + ((gradientColors[i] is background) && (colors[i] is null)); + if (!same) break; } - } - background = color; - backgroundImage = null; - gradientColors = null; - gradientPercents = null; - redraw(); - } - - /** - * Specify a gradient of colours to be drawn in the background of the CLabel. - * <p>For example, to draw a gradient that varies from dark blue to blue and then to - * white and stays white for the right half of the label, use the following call - * to setBackground:</p> - * <pre> - * clabel.setBackground(new Color[]{display.getSystemColor(DWT.COLOR_DARK_BLUE), - * display.getSystemColor(DWT.COLOR_BLUE), - * display.getSystemColor(DWT.COLOR_WHITE), - * display.getSystemColor(DWT.COLOR_WHITE)}, - * new int[] {25, 50, 100}); - * </pre> - * - * @param colors an array of Color that specifies the colors to appear in the gradient - * in order of appearance from left to right; The value <code>null</code> - * clears the background gradient; the value <code>null</code> can be used - * inside the array of Color to specify the background color. - * @param percents an array of integers between 0 and 100 specifying the percent of the width - * of the widget at which the color should change; the size of the percents - * array must be one less than the size of the colors array. - * - * @exception DWTException <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> - * <li>ERROR_INVALID_ARGUMENT - if the values of colors and percents are not consistent</li> - * </ul> - */ - public void setBackground (Color[] colors, int[] percents) - { - setBackground(colors, percents, false); - } - - /** - * Specify a gradient of colours to be drawn in the background of the CLabel. - * <p>For example, to draw a gradient that varies from dark blue to white in the vertical, - * direction use the following call - * to setBackground:</p> - * <pre> - * clabel.setBackground(new Color[]{display.getSystemColor(DWT.COLOR_DARK_BLUE), - * display.getSystemColor(DWT.COLOR_WHITE)}, - * new int[] {100}, true); - * </pre> - * - * @param colors an array of Color that specifies the colors to appear in the gradient - * in order of appearance from left/top to right/bottom; The value <code>null</code> - * clears the background gradient; the value <code>null</code> can be used - * inside the array of Color to specify the background color. - * @param percents an array of integers between 0 and 100 specifying the percent of the width/height - * of the widget at which the color should change; the size of the percents - * array must be one less than the size of the colors array. - * @param vertical indicate the direction of the gradient. True is vertical and false is horizontal. - * - * @exception DWTException <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> - * <li>ERROR_INVALID_ARGUMENT - if the values of colors and percents are not consistent</li> - * </ul> - * - * @since 3.0 - */ - public void setBackground (Color[] colors, int[] percents, bool vertical) - { - checkWidget(); - if (colors !is null) - { - if (percents is null || percents.length !is colors.length - 1) - { - DWT.error(DWT.ERROR_INVALID_ARGUMENT); - } - if (getDisplay().getDepth() < 15) - { - // Don't use gradients on low color displays - colors = new Color[][colors[colors.length - 1]]; - percents = new int[][]; - } - for (int i = 0; i < percents.length; i++) - { - if (percents[i] < 0 || percents[i] > 100) - { - DWT.error(DWT.ERROR_INVALID_ARGUMENT); - } - if (i > 0 && percents[i] < percents[i - 1]) - { - DWT.error(DWT.ERROR_INVALID_ARGUMENT); + if (same) { + for (int i = 0; i < gradientPercents.length; i++) { + same = gradientPercents[i] is percents[i]; + if (!same) break; } } + if (same && this.gradientVertical is vertical) return; } + } else { + backgroundImage = null; + } + // Store the new settings + if (colors is null) { + gradientColors = null; + gradientPercents = null; + gradientVertical = false; + } else { + gradientColors = new Color[colors.length]; + for (int i = 0; i < colors.length; ++i) + gradientColors[i] = (colors[i] !is null) ? colors[i] : background; + gradientPercents = new int[percents.length]; + for (int i = 0; i < percents.length; ++i) + gradientPercents[i] = percents[i]; + gradientVertical = vertical; + } + // Refresh with the new settings + redraw(); +} +/** + * Set the image to be drawn in the background of the label. + * + * @param image the image to be drawn in the background + * + * @exception DWTException <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> + */ +public void setBackground(Image image) { + checkWidget(); + if (image is backgroundImage) return; + if (image !is null) { + gradientColors = null; + gradientPercents = null; + } + backgroundImage = image; + redraw(); - // Are these settings the same as before? - const Color background = getBackground(); - if (backgroundImage is null) - { - if ((gradientColors !is null) && (colors !is null) && (gradientColors.length is colors.length)) - { - bool same = false; - for (int i = 0; i < gradientColors.length; i++) - { - same = (gradientColors[i] is colors[i]) || ((gradientColors[i] is null) && (colors[i] is background)) || ((gradientColors[i] is background) && (colors[i] is null)); - if (!same) - break; - } - if (same) - { - for (int i = 0; i < gradientPercents.length; i++) - { - same = gradientPercents[i] is percents[i]; - if (!same) - break; - } - } - if (same && this.gradientVertical is vertical) - return; - } - } - else - { - backgroundImage = null; - } - // Store the new settings - if (colors is null) - { - gradientColors = null; - gradientPercents = null; - gradientVertical = false; - } - else - { - gradientColors = new Color[colors.length]; - for (int i = 0; i < colors.length; ++i) - gradientColors[i] = (colors[i] !is null) ? colors[i] : background; - gradientPercents = new int[percents.length]; - for (int i = 0; i < percents.length; ++i) - gradientPercents[i] = percents[i]; - gradientVertical = vertical; - } - // Refresh with the new settings +} +public override void setFont(Font font) { + super.setFont(font); + redraw(); +} +/** + * Set the label's Image. + * The value <code>null</code> clears it. + * + * @param image the image to be displayed in the label or null + * + * @exception DWTException <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> + */ +public void setImage(Image image) { + checkWidget(); + if (image !is this.image) { + this.image = image; redraw(); } - - /** - * Set the image to be drawn in the background of the label. - * - * @param image the image to be drawn in the background - * - * @exception DWTException <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> - */ - public void setBackground (Image image) - { - checkWidget(); - if (image is backgroundImage) - return; - if (image !is null) - { - gradientColors = null; - gradientPercents = null; - } - backgroundImage = image; - redraw(); - - } - - public void setFont (Font font) - { - super.setFont(font); +} +/** + * Set the label's text. + * The value <code>null</code> clears it. + * + * @param text the text to be displayed in the label or null + * + * @exception DWTException <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> + */ +public void setText(String text) { + checkWidget(); + if (text is null) text = ""; //$NON-NLS-1$ + if ( text !=/*eq*/ this.text) { + this.text = text; redraw(); } - - /** - * Set the label's Image. - * The value <code>null</code> clears it. - * - * @param image the image to be displayed in the label or null - * - * @exception DWTException <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> - */ - public void setImage (Image image) - { - checkWidget(); - if (image !is this.image) - { - this.image = image; - redraw(); +} +public override void setToolTipText (String string) { + super.setToolTipText (string); + appToolTipText = super.getToolTipText(); +} +/** + * Shorten the given text <code>t</code> so that its length doesn't exceed + * the given width. The default implementation replaces characters in the + * center of the original string with an ellipsis ("..."). + * Override if you need a different strategy. + * + * @param gc the gc to use for text measurement + * @param t the text to shorten + * @param width the width to shorten the text to, in pixels + * @return the shortened text + */ +protected String shortenText(GC gc, String t, int width) { + if (t is null) return null; + int w = gc.textExtent(ELLIPSIS, DRAW_FLAGS).x; + if (width<=w) return t; + int l = t.length; + int max = l/2; + int min = 0; + int mid = (max+min)/2 - 1; + if (mid <= 0) return t; + TextLayout layout = new TextLayout (getDisplay()); + layout.setText(t); + mid = validateOffset(layout, mid); + while (min < mid && mid < max) { + String s1 = t[0 .. mid].dup; + String s2 = t.substring(validateOffset(layout, l-mid), l); + int l1 = gc.textExtent(s1, DRAW_FLAGS).x; + int l2 = gc.textExtent(s2, DRAW_FLAGS).x; + if (l1+w+l2 > width) { + max = mid; + mid = validateOffset(layout, (max+min)/2); + } else if (l1+w+l2 < width) { + min = mid; + mid = validateOffset(layout, (max+min)/2); + } else { + min = max; } } - - /** - * Set the label's text. - * The value <code>null</code> clears it. - * - * @param text the text to be displayed in the label or null - * - * @exception DWTException <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> - */ - public void setText (String text) - { - checkWidget(); - if (text is null) - text = ""; //$NON-NLS-1$ - if (!text.opEquals(this.text)) - { - this.text = text; - redraw(); + String result = mid is 0 ? t : t.substring(0, mid) ~ ELLIPSIS ~ t.substring(validateOffset(layout, l-mid), l); + layout.dispose(); + return result; +} +int validateOffset(TextLayout layout, int offset) { + int nextOffset = layout.getNextOffset(offset, DWT.MOVEMENT_CLUSTER); + if (nextOffset !is offset) return layout.getPreviousOffset(nextOffset, DWT.MOVEMENT_CLUSTER); + return offset; +} +private String[] splitString(String text) { + String[] lines = new String[1]; + int start = 0, pos; + do { + pos = tango.text.Util.locate( text, '\n', start); + if (pos is text.length ) { + lines[lines.length - 1] = text[start .. $ ]; + } else { + bool crlf = (pos > 0) && (text[ pos - 1 ] is '\r'); + lines[lines.length - 1] = text[ start .. pos - (crlf ? 1 : 0)]; + start = pos + 1; + String[] newLines = new String[lines.length+1]; + System.arraycopy(lines, 0, newLines, 0, lines.length); + lines = newLines; } - } - - public void setToolTipText (String String) - { - super.setToolTipText(String); - appToolTipText = super.getToolTipText(); - } - - /** - * Shorten the given text <code>t</code> so that its length doesn't exceed - * the given width. The default implementation replaces characters in the - * center of the original String with an ellipsis ("..."). - * Override if you need a different strategy. - * - * @param gc the gc to use for text measurement - * @param t the text to shorten - * @param width the width to shorten the text to, in pixels - * @return the shortened text - */ - protected String shortenText (GC gc, String t, int width) - { - if (t is null) - return null; - int w = gc.textExtent(ELLIPSIS, DRAW_FLAGS).x; - if (width <= w) - return t; - int l = t.length(); - int max = l / 2; - int min = 0; - int mid = (max + min) / 2 - 1; - if (mid <= 0) - return t; - TextLayout layout = new TextLayout(getDisplay()); - layout.setText(t); - mid = validateOffset(layout, mid); - while (min < mid && mid < max) - { - String s1 = t.substring(0, mid); - String s2 = t.substring(validateOffset(layout, l - mid), l); - int l1 = gc.textExtent(s1, DRAW_FLAGS).x; - int l2 = gc.textExtent(s2, DRAW_FLAGS).x; - if (l1 + w + l2 > width) - { - max = mid; - mid = validateOffset(layout, (max + min) / 2); - } - else if (l1 + w + l2 < width) - { - min = mid; - mid = validateOffset(layout, (max + min) / 2); - } - else - { - min = max; - } - } - String - result = mid is 0 ? t : t.substring(0, mid) + ELLIPSIS + t.substring( - validateOffset(layout, l - mid), l); - layout.dispose(); - return result; - } - - int validateOffset (TextLayout layout, int offset) - { - int nextOffset = layout.getNextOffset(offset, DWT.MOVEMENT_CLUSTER); - if (nextOffset !is offset) - return layout.getPreviousOffset(nextOffset, DWT.MOVEMENT_CLUSTER); - return offset; - } - - private String[] splitString (String text) - { - String[] lines = new String[1]; - int start = 0, pos; - do - { - pos = text.indexOf('\n', start); - if (pos is -1) - { - lines[lines.length - 1] = text.substring(start); - } - else - { - bool crlf = (pos > 0) && (text.charAt(pos - 1) is '\r'); - lines[lines.length - 1] = text.substring(start, - pos - (crlf ? 1 : 0)); - start = pos + 1; - String[] newLines = new String[lines.length + 1]; - System.arraycopy(lines, 0, newLines, 0, lines.length); - lines = newLines; - } - } while (pos !is -1); - return lines; - } + } while (pos !is text.length); + return lines; } +}