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1 // Written in the D programming language
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2 // www.digitalmars.com/d/
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3
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4 /*
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5 * The contents of this file are subject to the Mozilla Public License Version
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6 * 1.1 (the "License"); you may not use this file except in compliance with
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7 * the License. You may obtain a copy of the License at
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8 * http://www.mozilla.org/MPL/
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9 *
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10 * Software distributed under the License is distributed on an "AS IS" basis,
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11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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12 * for the specific language governing rights and limitations under the
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13 * License.
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14 *
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15 * The Original Code is the Dynamin library.
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16 *
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17 * The Initial Developer of the Original Code is Jordan Miner.
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18 * Portions created by the Initial Developer are Copyright (C) 2007-2009
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19 * the Initial Developer. All Rights Reserved.
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20 *
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21 * Contributor(s):
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22 * Jordan Miner <jminer7@gmail.com>
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23 *
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24 */
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25
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26 module dynamin.gui.windows_cursor;
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27
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28 public import dynamin.c.windows;
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29 public import tango.io.Stdout;
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30 public import dynamin.gui.control;
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31
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32 // TODO: use import("AeroMouseDrag.png"), import("MouseDrag.png"), etc.
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33 // to embed png into executable. Then, use lodepng to decode it and use
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34 // CreateIconIndirect to create a cusor from them if possible.
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35
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36 template CursorBackend() {
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37 HCURSOR _handle;
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38 bool isBuiltin = false;
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39 this(HCURSOR h) {
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40 _handle = h;
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41 isBuiltin = true;
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42 }
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43 static:
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44 void backend_SetCurrent(Control c, Cursor cur) {
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45 assert(cur.isBuiltin); // TODO: allow custom cursors
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46 SetCursor(cur._handle);
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47 }
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48 Cursor none = null;
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49 Cursor arrow = null;
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50 Cursor waitArrow = null;
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51 Cursor wait = null;
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52 Cursor text = null;
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53 Cursor hand = null;
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54 Cursor move = null;
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55 Cursor resizeHoriz = null;
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56 Cursor resizeVert = null;
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57 Cursor resizeBackslash = null;
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58 Cursor resizeSlash = null;
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59 Cursor drag = null; // from resource
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60 Cursor invalidDrag = null;
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61 Cursor reversedArrow = null; // from resource
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62 Cursor crosshair = null;
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63
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64 Cursor backend_maybeLoad(Cursor* cache, int curRes) {
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65 if(*cache is null) {
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66 HCURSOR hcur = LoadImage(null, MAKEINTRESOURCE(curRes),
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67 IMAGE_CURSOR, 0, 0, LR_SHARED | LR_DEFAULTSIZE);
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68 if(hcur is null)
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69 Stdout.format("LoadImage() failed loading cursor {}", curRes).newline;
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70 else
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71 *cache = new Cursor(hcur);
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72 }
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73 return *cache;
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74 }
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75 Cursor backend_maybeLoad(Cursor* cache, wchar[] name) {
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76 if(*cache is null) {
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77 HCURSOR hcur = LoadImage(GetModuleHandle(null), name.ptr,
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78 IMAGE_CURSOR, 0, 0, LR_DEFAULTSIZE);
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79 if(hcur is null)
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80 Stdout.format("LoadImage() failed loading cursor {}", name).newline;
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81 else
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82 *cache = new Cursor(hcur);
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83 }
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84 return *cache;
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85 }
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86 Cursor backend_None() {
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87 if(none is null)
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88 none = new Cursor(cast(HCURSOR)null);
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89 return none;
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90 }
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91 Cursor backend_Arrow() {
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92 return backend_maybeLoad(&arrow, OCR_NORMAL);
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93 }
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94 Cursor backend_WaitArrow() {
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95 return backend_maybeLoad(&waitArrow, OCR_APPSTARTING);
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96 }
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97 Cursor backend_Wait() {
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98 return backend_maybeLoad(&wait, OCR_WAIT);
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99 }
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100 Cursor backend_Text() {
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101 return backend_maybeLoad(&text, OCR_IBEAM);
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102 }
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103 Cursor backend_Hand() {
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104 return backend_maybeLoad(&hand, OCR_HAND); // Windows 98 & newer
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105 }
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106 Cursor backend_Move() {
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107 return backend_maybeLoad(&move, OCR_SIZEALL);
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108 }
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109 Cursor backend_ResizeHoriz() {
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110 return backend_maybeLoad(&resizeHoriz, OCR_SIZEWE);
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111 }
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112 Cursor backend_ResizeVert() {
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113 return backend_maybeLoad(&resizeVert, OCR_SIZENS);
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114 }
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115 Cursor backend_ResizeBackslash() {
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116 return backend_maybeLoad(&resizeBackslash, OCR_SIZENWSE);
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117 }
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118 Cursor backend_ResizeSlash() {
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119 return backend_maybeLoad(&resizeSlash, OCR_SIZENESW);
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120 }
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121 Cursor backend_Drag() {
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122 if(checkWindowsVersion(WindowsVersion.WindowsVista))
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123 return backend_maybeLoad(&drag, "AeroDragCur");
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124 else
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125 return backend_maybeLoad(&drag, "DragCur");
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126 }
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127 Cursor backend_InvalidDrag() {
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128 return backend_maybeLoad(&invalidDrag, OCR_NO);
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129 }
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130 Cursor backend_ReversedArrow() {
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131 if(checkWindowsVersion(WindowsVersion.WindowsVista))
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132 return backend_maybeLoad(&drag, "AeroReversedArrowCur");
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133 else
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134 return backend_maybeLoad(&drag, "ReversedArrowCur");
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135 }
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136 Cursor backend_Crosshair() {
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137 return backend_maybeLoad(&crosshair, OCR_CROSS);
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138 }
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139 }
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140
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