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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.widgets.TrayItem;
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14
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15 import java.lang.all;
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16
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17 import org.eclipse.swt.SWT;
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18 import org.eclipse.swt.widgets.Tray;
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19 import org.eclipse.swt.widgets.ToolTip;
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20 import org.eclipse.swt.widgets.ImageList;
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21 import org.eclipse.swt.widgets.Item;
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22 import org.eclipse.swt.events.SelectionListener;
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23 import org.eclipse.swt.events.SelectionEvent;
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24 import org.eclipse.swt.events.MenuDetectListener;
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25 import org.eclipse.swt.widgets.TypedListener;
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26 import org.eclipse.swt.graphics.Image;
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27 import org.eclipse.swt.graphics.Rectangle;
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28 import org.eclipse.swt.graphics.Region;
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29 import org.eclipse.swt.internal.gtk.OS;
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30
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48
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31 version(Tango){
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51
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32 import tango.util.Convert;
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48
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33 } else { // Phobos
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51
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34 import std.conv;
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48
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35 }
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25
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36
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37 /**
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38 * Instances of this class represent icons that can be placed on the
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39 * system tray or task bar status area.
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40 * <p>
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41 * <dl>
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42 * <dt><b>Styles:</b></dt>
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43 * <dd>(none)</dd>
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44 * <dt><b>Events:</b></dt>
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45 * <dd>DefaultSelection, MenuDetect, Selection</dd>
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46 * </dl>
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47 * </p><p>
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48 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
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49 * </p>
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50 *
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51 * @see <a href="http://www.eclipse.org/swt/snippets/#tray">Tray, TrayItem snippets</a>
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52 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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53 *
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54 * @since 3.0
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55 */
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56 public class TrayItem : Item {
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57 Tray parent;
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58 ToolTip toolTip;
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59 String toolTipText;
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60 GtkWidget* imageHandle;
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61 GtkWidget* tooltipsHandle;
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62 ImageList imageList;
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63
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64 /**
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65 * Constructs a new instance of this class given its parent
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66 * (which must be a <code>Tray</code>) and a style value
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67 * describing its behavior and appearance. The item is added
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68 * to the end of the items maintained by its parent.
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69 * <p>
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70 * The style value is either one of the style constants defined in
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71 * class <code>SWT</code> which is applicable to instances of this
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72 * class, or must be built by <em>bitwise OR</em>'ing together
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73 * (that is, using the <code>int</code> "|" operator) two or more
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74 * of those <code>SWT</code> style constants. The class description
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75 * lists the style constants that are applicable to the class.
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76 * Style bits are also inherited from superclasses.
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77 * </p>
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78 *
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79 * @param parent a composite control which will be the parent of the new instance (cannot be null)
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80 * @param style the style of control to construct
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81 *
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82 * @exception IllegalArgumentException <ul>
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83 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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84 * </ul>
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85 * @exception SWTException <ul>
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86 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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87 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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88 * </ul>
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89 *
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90 * @see SWT
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91 * @see Widget#checkSubclass
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92 * @see Widget#getStyle
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93 */
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94 public this (Tray parent, int style) {
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95 super (parent, style);
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96 this.parent = parent;
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97 createWidget (parent.getItemCount ());
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98 }
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99
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100 /**
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101 * Adds the listener to the collection of listeners who will
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102 * be notified when the platform-specific context menu trigger
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103 * has occurred, by sending it one of the messages defined in
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104 * the <code>MenuDetectListener</code> interface.
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105 *
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106 * @param listener the listener which should be notified
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107 *
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108 * @exception IllegalArgumentException <ul>
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109 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
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110 * </ul>
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111 * @exception SWTException <ul>
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112 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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113 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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114 * </ul>
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115 *
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116 * @see MenuDetectListener
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117 * @see #removeMenuDetectListener
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118 *
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119 * @since 3.3
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120 */
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121 public void addMenuDetectListener (MenuDetectListener listener) {
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122 checkWidget ();
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123 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT);
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124 TypedListener typedListener = new TypedListener (listener);
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125 addListener (SWT.MenuDetect, typedListener);
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126 }
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127
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128 /**
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129 * Adds the listener to the collection of listeners who will
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130 * be notified when the receiver is selected by the user, by sending
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131 * it one of the messages defined in the <code>SelectionListener</code>
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132 * interface.
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133 * <p>
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134 * <code>widgetSelected</code> is called when the receiver is selected
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135 * <code>widgetDefaultSelected</code> is called when the receiver is double-clicked
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136 * </p>
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137 *
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138 * @param listener the listener which should be notified when the receiver is selected by the user
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139 *
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140 * @exception IllegalArgumentException <ul>
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141 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
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142 * </ul>
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143 * @exception SWTException <ul>
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144 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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145 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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146 * </ul>
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147 *
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148 * @see SelectionListener
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149 * @see #removeSelectionListener
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150 * @see SelectionEvent
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151 */
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152 public void addSelectionListener(SelectionListener listener) {
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153 checkWidget ();
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154 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT);
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155 TypedListener typedListener = new TypedListener (listener);
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156 addListener (SWT.Selection, typedListener);
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157 addListener (SWT.DefaultSelection, typedListener);
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158 }
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159
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160 protected override void checkSubclass () {
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161 if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
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162 }
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163
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164 override void createWidget (int index) {
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165 super.createWidget (index);
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166 parent.createItem (this, index);
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167 }
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168
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169 override void createHandle (int index) {
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170 state |= HANDLE;
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171 handle = OS.gtk_plug_new (0);
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172 if (handle is null) error (SWT.ERROR_NO_HANDLES);
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173 imageHandle = OS.gtk_image_new ();
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174 if (imageHandle is null) error (SWT.ERROR_NO_HANDLES);
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175 OS.gtk_container_add (cast(GtkContainer*)handle, imageHandle);
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176 OS.gtk_widget_show (handle);
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177 OS.gtk_widget_show (imageHandle);
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178 auto id = OS.gtk_plug_get_id (cast(GtkPlug*)handle);
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179 int monitor = 0;
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180 auto screen = OS.gdk_screen_get_default ();
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181 if (screen !is null) {
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182 monitor = OS.gdk_screen_get_number (screen);
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183 }
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184 auto trayAtom = OS.gdk_atom_intern (toStringz("_NET_SYSTEM_TRAY_S" ~ to!(String)(monitor)), true);
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185 auto xTrayAtom = OS.gdk_x11_atom_to_xatom (trayAtom);
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186 auto xDisplay = OS.GDK_DISPLAY ();
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187 auto trayWindow = OS.XGetSelectionOwner (xDisplay, xTrayAtom);
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188 auto messageAtom = OS.gdk_atom_intern (toStringz("_NET_SYSTEM_TRAY_OPCODE"), true);
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189 auto xMessageAtom = OS.gdk_x11_atom_to_xatom (messageAtom);
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190 XClientMessageEvent* event = cast(XClientMessageEvent*)OS.g_malloc (XClientMessageEvent.sizeof);;
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191 event.type = OS.ClientMessage;
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192 event.window = trayWindow;
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193 event.message_type = xMessageAtom;
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194 event.format = 32;
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195 event.data.l [0] = OS.GDK_CURRENT_TIME;
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196 event.data.l [1] = OS.SYSTEM_TRAY_REQUEST_DOCK;
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197 event.data.l [2] = id;
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198 OS.XSendEvent (xDisplay, trayWindow, false, OS.NoEventMask, cast(XEvent*) event);
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199 OS.g_free (event);
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200 }
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201
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202 override void deregister () {
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203 super.deregister ();
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204 display.removeWidget (imageHandle);
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205 }
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206
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207 override void destroyWidget () {
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208 parent.destroyItem (this);
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209 releaseHandle ();
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210 }
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211
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212 /**
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213 * Returns the receiver's parent, which must be a <code>Tray</code>.
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214 *
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215 * @return the receiver's parent
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216 *
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217 * @exception SWTException <ul>
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218 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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219 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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220 * </ul>
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221 *
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222 * @since 3.2
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223 */
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224 public Tray getParent () {
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225 checkWidget ();
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226 return parent;
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227 }
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228
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229 /**
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230 * Returns the receiver's tool tip, or null if it has
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231 * not been set.
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232 *
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233 * @return the receiver's tool tip text
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234 *
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235 * @exception SWTException <ul>
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236 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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237 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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238 * </ul>
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239 *
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240 * @since 3.2
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241 */
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242 public ToolTip getToolTip () {
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243 checkWidget ();
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244 return toolTip;
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245 }
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246
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247 /**
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248 * Returns the receiver's tool tip text, or null if it has
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249 * not been set.
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250 *
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251 * @return the receiver's tool tip text
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252 *
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253 * @exception SWTException <ul>
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254 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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255 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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256 * </ul>
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257 */
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258 public String getToolTipText () {
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259 checkWidget ();
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260 return toolTipText;
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261 }
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262
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263 override int /*long*/ gtk_button_press_event (GtkWidget* widget, GdkEventButton* event) {
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264 if (event.type is OS.GDK_3BUTTON_PRESS) return 0;
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265 if (event.button is 3 && event.type is OS.GDK_BUTTON_PRESS) {
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266 sendEvent (SWT.MenuDetect);
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267 return 0;
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268 }
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269 if (event.type is OS.GDK_2BUTTON_PRESS) {
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270 postEvent (SWT.DefaultSelection);
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271 } else {
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272 postEvent (SWT.Selection);
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273 }
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274 return 0;
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275 }
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276
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277 override int /*long*/ gtk_size_allocate (GtkWidget* widget, int /*long*/ allocation) {
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278 if (image !is null && image.mask !is null) {
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279 if (OS.gdk_drawable_get_depth (image.mask) is 1) {
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280 int xoffset = cast(int) Math.floor (OS.GTK_WIDGET_X (widget) + ((OS.GTK_WIDGET_WIDTH (widget) - OS.GTK_WIDGET_REQUISITION_WIDTH (widget)) * 0.5) + 0.5);
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281 int yoffset = cast(int) Math.floor (OS.GTK_WIDGET_Y (widget) + ((OS.GTK_WIDGET_HEIGHT (widget) - OS.GTK_WIDGET_REQUISITION_HEIGHT (widget)) * 0.5) + 0.5);
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282 Rectangle b = image.getBounds();
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283 auto gdkImage = OS.gdk_drawable_get_image (image.mask, 0, 0, b.width, b.height);
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284 if (gdkImage is null) SWT.error(SWT.ERROR_NO_HANDLES);
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285 byte[] maskData = (cast(byte*)gdkImage.mem)[ 0 .. gdkImage.bpl * gdkImage.height].dup;
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286 Region region = new Region (display);
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287 for (int y = 0; y < b.height; y++) {
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288 for (int x = 0; x < b.width; x++) {
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289 int index = (y * gdkImage.bpl) + (x >> 3);
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290 int theByte = maskData [index] & 0xFF;
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291 int mask = 1 << (x & 0x7);
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292 if ((theByte & mask) !is 0) {
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293 region.add (xoffset + x, yoffset + y, 1, 1);
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294 }
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295 }
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296 }
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297 OS.g_object_unref (gdkImage);
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298 OS.gtk_widget_realize (handle);
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299 auto window = OS.GTK_WIDGET_WINDOW (handle);
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300 OS.gdk_window_shape_combine_region (window, region.handle, 0, 0);
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301 region.dispose ();
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302 }
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303 }
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304 return 0;
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305 }
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306
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307 override void hookEvents () {
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308 int eventMask = OS.GDK_BUTTON_PRESS_MASK;
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309 OS.gtk_widget_add_events (handle, eventMask);
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310 OS.g_signal_connect_closure_by_id (handle, display.signalIds [BUTTON_PRESS_EVENT], 0, display.closures [BUTTON_PRESS_EVENT], false);
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311 OS.g_signal_connect_closure_by_id (imageHandle, display.signalIds [SIZE_ALLOCATE], 0, display.closures [SIZE_ALLOCATE], false);
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312 }
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313
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314 /**
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315 * Returns <code>true</code> if the receiver is visible and
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316 * <code>false</code> otherwise.
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317 *
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318 * @return the receiver's visibility
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319 *
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320 * @exception SWTException <ul>
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321 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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322 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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323 * </ul>
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324 */
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325 public bool getVisible () {
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326 checkWidget ();
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327 return OS.GTK_WIDGET_VISIBLE (handle);
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328 }
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329
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330 override void register () {
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331 super.register ();
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332 display.addWidget (imageHandle, this);
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333 }
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334
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335 override void releaseHandle () {
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336 if (handle !is null) OS.gtk_widget_destroy (handle);
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337 handle = imageHandle = null;
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338 super.releaseHandle ();
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339 parent = null;
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340 }
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341
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342 override void releaseWidget () {
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343 super.releaseWidget ();
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344 if (tooltipsHandle !is null) OS.g_object_unref (tooltipsHandle);
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345 tooltipsHandle = null;
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346 if (imageList !is null) imageList.dispose ();
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347 imageList = null;
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348 toolTipText = null;
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349 }
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350
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351 /**
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352 * Removes the listener from the collection of listeners who will
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353 * be notified when the platform-specific context menu trigger has
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354 * occurred.
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355 *
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356 * @param listener the listener which should no longer be notified
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357 *
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358 * @exception IllegalArgumentException <ul>
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359 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
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360 * </ul>
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361 * @exception SWTException <ul>
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362 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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363 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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364 * </ul>
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365 *
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366 * @see MenuDetectListener
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367 * @see #addMenuDetectListener
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368 *
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369 * @since 3.3
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370 */
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371 public void removeMenuDetectListener (MenuDetectListener listener) {
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372 checkWidget ();
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373 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT);
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374 if (eventTable is null) return;
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375 eventTable.unhook (SWT.MenuDetect, listener);
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376 }
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377
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378 /**
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379 * Removes the listener from the collection of listeners who will
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380 * be notified when the receiver is selected by the user.
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381 *
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382 * @param listener the listener which should no longer be notified
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383 *
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384 * @exception IllegalArgumentException <ul>
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385 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
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386 * </ul>
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387 * @exception SWTException <ul>
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388 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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389 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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390 * </ul>
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391 *
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392 * @see SelectionListener
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393 * @see #addSelectionListener
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394 */
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395 public void removeSelectionListener (SelectionListener listener) {
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396 checkWidget ();
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397 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT);
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398 if (eventTable is null) return;
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399 eventTable.unhook (SWT.Selection, listener);
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400 eventTable.unhook (SWT.DefaultSelection, listener);
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401 }
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402
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403 /**
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404 * Sets the receiver's image.
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405 *
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406 * @param image the new image
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407 *
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408 * @exception IllegalArgumentException <ul>
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409 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
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410 * </ul>
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411 * @exception SWTException <ul>
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412 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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413 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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414 * </ul>
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415 */
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416 public override void setImage (Image image) {
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417 checkWidget ();
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418 if (image !is null && image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
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419 this.image = image;
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420 if (image !is null) {
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421 Rectangle rect = image.getBounds ();
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422 OS.gtk_widget_set_size_request (handle, rect.width, rect.height);
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423 if (imageList is null) imageList = new ImageList ();
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424 int imageIndex = imageList.indexOf (image);
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425 if (imageIndex is -1) {
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426 imageIndex = imageList.add (image);
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427 } else {
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428 imageList.put (imageIndex, image);
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429 }
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|
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430 auto pixbuf = imageList.getPixbuf (imageIndex);
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|
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431 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, pixbuf);
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|
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432 OS.gtk_widget_show (imageHandle);
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|
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433 } else {
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|
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434 OS.gtk_widget_set_size_request (handle, 1, 1);
|
|
|
435 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, null);
|
|
|
436 OS.gtk_widget_hide (imageHandle);
|
|
|
437 }
|
|
|
438 }
|
|
|
439
|
|
|
440 /**
|
|
|
441 * Sets the receiver's tool tip to the argument, which
|
|
|
442 * may be null indicating that no tool tip should be shown.
|
|
|
443 *
|
|
|
444 * @param toolTip the new tool tip (or null)
|
|
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445 *
|
|
|
446 * @exception SWTException <ul>
|
|
|
447 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
448 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
449 * </ul>
|
|
|
450 *
|
|
|
451 * @since 3.2
|
|
|
452 */
|
|
|
453 public void setToolTip (ToolTip toolTip) {
|
|
|
454 checkWidget ();
|
|
|
455 ToolTip oldTip = this.toolTip, newTip = toolTip;
|
|
|
456 if (oldTip !is null) oldTip.item = null;
|
|
|
457 this.toolTip = newTip;
|
|
|
458 if (newTip !is null) newTip.item = this;
|
|
|
459 }
|
|
|
460
|
|
|
461 /**
|
|
|
462 * Sets the receiver's tool tip text to the argument, which
|
|
|
463 * may be null indicating that no tool tip text should be shown.
|
|
|
464 *
|
|
|
465 * @param value the new tool tip text (or null)
|
|
|
466 *
|
|
|
467 * @exception SWTException <ul>
|
|
|
468 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
469 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
470 * </ul>
|
|
|
471 */
|
|
|
472 public void setToolTipText (String string) {
|
|
|
473 checkWidget ();
|
|
|
474 toolTipText = string;
|
|
|
475 char* buffer = null;
|
|
|
476 if (string !is null && string.length > 0) {
|
|
|
477 buffer = toStringz( string );
|
|
|
478 }
|
|
|
479 if (tooltipsHandle is null) {
|
|
|
480 tooltipsHandle = cast(GtkWidget*)OS.gtk_tooltips_new ();
|
|
|
481 if (tooltipsHandle is null) error (SWT.ERROR_NO_HANDLES);
|
|
|
482 OS.g_object_ref (cast(GObject*)tooltipsHandle);
|
|
|
483 OS.gtk_object_sink (cast(GtkObject*)tooltipsHandle);
|
|
|
484 }
|
|
|
485 OS.gtk_tooltips_set_tip (cast(GtkTooltips*)tooltipsHandle, handle, buffer, null);
|
|
|
486 }
|
|
|
487
|
|
|
488 /**
|
|
|
489 * Makes the receiver visible if the argument is <code>true</code>,
|
|
|
490 * and makes it invisible otherwise.
|
|
|
491 *
|
|
|
492 * @param visible the new visibility state
|
|
|
493 *
|
|
|
494 * @exception SWTException <ul>
|
|
|
495 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
|
|
|
496 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
|
|
|
497 * </ul>
|
|
|
498 */
|
|
|
499 public void setVisible (bool visible) {
|
|
|
500 checkWidget ();
|
|
|
501 if (OS.GTK_WIDGET_VISIBLE (handle) is visible) return;
|
|
|
502 if (visible) {
|
|
|
503 /*
|
|
|
504 * It is possible (but unlikely), that application
|
|
|
505 * code could have disposed the widget in the show
|
|
|
506 * event. If this happens, just return.
|
|
|
507 */
|
|
|
508 sendEvent (SWT.Show);
|
|
|
509 if (isDisposed ()) return;
|
|
|
510 OS.gtk_widget_show (handle);
|
|
|
511 } else {
|
|
|
512 OS.gtk_widget_hide (handle);
|
|
|
513 sendEvent (SWT.Hide);
|
|
|
514 }
|
|
|
515 }
|
|
|
516 }
|
