Mercurial > projects > dwt-linux
changeset 77:5f2f175327bc
Dialog and ColorDialog
author | Frank Benoit <benoit@tionex.de> |
---|---|
date | Tue, 15 Jan 2008 15:59:30 +0100 |
parents | 8846d8f76363 |
children | 3acb1029ed5c |
files | dwt/widgets/ColorDialog.d dwt/widgets/Dialog.d dwt/widgets/Widget.d |
diffstat | 3 files changed, 420 insertions(+), 1 deletions(-) [+] |
line wrap: on
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ColorDialog.d Tue Jan 15 15:59:30 2008 +0100 @@ -0,0 +1,166 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 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: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.ColorDialog; + + + +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.PaletteData; +import dwt.graphics.RGB; +import dwt.internal.gtk.OS; +import dwt.widgets.Dialog; +import dwt.widgets.Shell; +import dwt.widgets.Display; + +import tango.stdc.stringz; + +/** + * Instances of this class allow the user to select a color + * from a predefined set of available colors. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ +public class ColorDialog : Dialog { + RGB rgb; +/** + * Constructs a new instance of this class given only its parent. + * + * @param parent a composite control which will be the parent of the new instance + * + * @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> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public this (Shell parent) { + this (parent, DWT.NONE); +} +/** + * 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 composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control 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> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public this (Shell parent, int style) { + super (parent, style); + checkSubclass (); +} + +/** + * Returns the currently selected color in the receiver. + * + * @return the RGB value for the selected color, may be null + * + * @see PaletteData#getRGBs + */ +public RGB getRGB () { + return rgb; +} +/** + * Makes the receiver visible and brings it to the front + * of the display. + * + * @return the selected color, or null if the dialog was + * cancelled, no color was selected, or an error + * occurred + * + * @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 RGB open () { + char* buffer = toStringz(title); + auto handle = cast(GtkWidget*)OS.gtk_color_selection_dialog_new (buffer); + if (parent !is null) { + auto shellHandle = parent.topHandle (); + OS.gtk_window_set_transient_for (handle, shellHandle); + auto pixbufs = OS.gtk_window_get_icon_list (shellHandle); + if (pixbufs !is null) { + OS.gtk_window_set_icon_list (handle, pixbufs); + OS.g_list_free (pixbufs); + } + } + GtkColorSelectionDialog* dialog = cast(GtkColorSelectionDialog*)handle; + GdkColor color; + if (rgb !is null) { + color.red = cast(short)((rgb.red & 0xFF) | ((rgb.red & 0xFF) << 8)); + color.green = cast(short)((rgb.green & 0xFF) | ((rgb.green & 0xFF) << 8)); + color.blue = cast(short)((rgb.blue & 0xFF) | ((rgb.blue & 0xFF) << 8)); + OS.gtk_color_selection_set_current_color (dialog.colorsel, &color); + } + OS.gtk_color_selection_set_has_palette (dialog.colorsel, true); + Display display = parent !is null ? parent.getDisplay (): Display.getCurrent (); + display.addIdleProc (); + int response = OS.gtk_dialog_run (handle); + bool success = response is OS.GTK_RESPONSE_OK; + if (success) { + OS.gtk_color_selection_get_current_color (dialog.colorsel, &color); + int red = (color.red >> 8) & 0xFF; + int green = (color.green >> 8) & 0xFF; + int blue = (color.blue >> 8) & 0xFF; + rgb = new RGB (red, green, blue); + } + display.removeIdleProc (); + OS.gtk_widget_destroy (handle); + if (!success) return null; + return rgb; +} +/** + * Sets the receiver's selected color to be the argument. + * + * @param rgb the new RGB value for the selected color, may be + * null to let the platform select a default when + * open() is called + * @see PaletteData#getRGBs + */ +public void setRGB (RGB rgb) { + this.rgb = rgb; +} +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Dialog.d Tue Jan 15 15:59:30 2008 +0100 @@ -0,0 +1,253 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 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: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Dialog; + + +import dwt.DWT; +import dwt.DWTException; +import dwt.widgets.Shell; +import dwt.widgets.Display; + +/** + * This class is the abstract superclass of the classes + * that represent the built in platform dialogs. + * A <code>Dialog</code> typically contains other widgets + * that are not accessible. A <code>Dialog</code> is not + * a <code>Widget</code>. + * <p> + * This class can also be used as the abstract superclass + * for user-designed dialogs. Such dialogs usually consist + * of a Shell with child widgets. The basic template for a + * user-defined dialog typically looks something like this: + * <pre><code> + * public class MyDialog extends Dialog { + * Object result; + * + * public MyDialog (Shell parent, int style) { + * super (parent, style); + * } + * public MyDialog (Shell parent) { + * this (parent, 0); // your default style bits go here (not the Shell's style bits) + * } + * public Object open () { + * Shell parent = getParent(); + * Shell shell = new Shell(parent, DWT.DIALOG_TRIM | DWT.APPLICATION_MODAL); + * shell.setText(getText()); + * // Your code goes here (widget creation, set result, etc). + * shell.open(); + * Display display = parent.getDisplay(); + * while (!shell.isDisposed()) { + * if (!display.readAndDispatch()) display.sleep(); + * } + * return result; + * } + * } + * </pre></code> + * <p> + * Note: The <em>modality</em> styles supported by this class + * are treated as <em>HINT</em>s, because not all are supported + * by every subclass on every platform. If a modality style is + * not supported, it is "upgraded" to a more restrictive modality + * style that is supported. For example, if <code>PRIMARY_MODAL</code> + * is not supported by a particular dialog, it would be upgraded to + * <code>APPLICATION_MODAL</code>. In addition, as is the case + * for shells, the window manager for the desktop on which the + * instance is visible has ultimate control over the appearance + * and behavior of the instance, including its modality. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>APPLICATION_MODAL, PRIMARY_MODAL, SYSTEM_MODAL</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of the styles APPLICATION_MODAL, PRIMARY_MODAL, + * and SYSTEM_MODAL may be specified. + * </p> + * + * @see Shell + */ + +public abstract class Dialog { + int style; + Shell parent; + char[] title; + +/** + * Constructs a new instance of this class given only its + * parent. + * + * @param parent a shell which will be the parent of the new instance + * + * @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> + */ +public this (Shell parent) { + this (parent, DWT.PRIMARY_MODAL); +} + +/** + * 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. + * + * @param parent a shell which will be the parent of the new instance + * @param style the style of dialog 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#PRIMARY_MODAL + * @see DWT#APPLICATION_MODAL + * @see DWT#SYSTEM_MODAL + */ +public this (Shell parent, int style) { + checkParent (parent); + this.parent = parent; + this.style = style; + title = ""; +} + +/** + * Checks that this class can be subclassed. + * <p> + * IMPORTANT: See the comment in <code>Widget.checkSubclass()</code>. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see Widget#checkSubclass + */ +protected void checkSubclass () { + //PORTING_TODO: implement Display.isValidClass and Class? + /+if (!Display.isValidClass (getClass ())) { + error (DWT.ERROR_INVALID_SUBCLASS); + }+/ +} + +/** + * Throws an exception if the specified widget can not be + * used as a parent for the receiver. + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + */ +void checkParent (Shell parent) { + if (parent is null) error (DWT.ERROR_NULL_ARGUMENT); + parent.checkWidget (); +} + +/** + * Does whatever dialog specific cleanup is required, and then + * uses the code in <code>DWTError.error</code> to handle the error. + * + * @param code the descriptive error code + * + * @see DWT#error(int) + */ +void error (int code) { + DWT.error(code); +} + +/** + * Returns the receiver's parent, which must be a <code>Shell</code> + * or null. + * + * @return the receiver's parent + * + * @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 Shell getParent () { + return parent; +} + +/** + * Returns the receiver's style information. + * <p> + * Note that, the value which is returned by this method <em>may + * not match</em> the value which was provided to the constructor + * when the receiver was created. + * </p> + * + * @return the style bits + * + * @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 int getStyle () { + return style; +} + +/** + * Returns the receiver's text, which is the string that the + * window manager will typically display as the receiver's + * <em>title</em>. If the text has not previously been set, + * returns an empty string. + * + * @return the text + * + * @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 char[] getText () { + return title; +} + +/** + * Sets the receiver's text, which is the string that the + * window manager will typically display as the receiver's + * <em>title</em>, to the argument, which must not be null. + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @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 (char[] string) { + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + title = string; +} + +}
--- a/dwt/widgets/Widget.d Tue Jan 15 15:45:18 2008 +0100 +++ b/dwt/widgets/Widget.d Tue Jan 15 15:59:30 2008 +0100 @@ -456,7 +456,7 @@ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ -protected void checkWidget () { +public void checkWidget () { Display display = this.display; if (display is null) error (DWT.ERROR_WIDGET_DISPOSED); if (display.thread !is Thread.getThis ()) error (DWT.ERROR_THREAD_INVALID_ACCESS);