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annotate mde/gui/widget/miscWidgets.d @ 57:9e1f05fbbcef

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Coloured and alpha-blended text is now supported. TextWidgets get text colour from argument.
author Diggory Hardy <diggory.hardy@gmail.com>
date Sat, 14 Jun 2008 13:09:03 +0100
parents bca7e2342d77
children d43523ed4b62
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* LICENSE BLOCK
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2 Part of mde: a Modular D game-oriented Engine
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3 Copyright © 2007-2008 Diggory Hardy
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4
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5 This program is free software: you can redistribute it and/or modify it under the terms
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6 of the GNU General Public License as published by the Free Software Foundation, either
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7 version 2 of the License, or (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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10 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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11 See the GNU General Public License for more details.
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12
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13 You should have received a copy of the GNU General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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15
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16 /** Some GUI Miscelaneas widgets. */
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17 module mde.gui.widget.miscWidgets;
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18
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19 import mde.gui.widget.Widget;
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20 import mde.gui.exception;
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21 import mde.gui.renderer.IRenderer;
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22
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23 import mde.resource.font;
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25 import tango.io.Stdout;
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26
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27
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28 /// A fixed-size blank widget.
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29 class FixedBlankWidget : FixedWidget
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30 {
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31 this (IWindow wind, int[] data) {
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32 if (data.length != 3) throw new WidgetDataException;
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33 super (wind, data);
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34 }
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35
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36 void draw () {
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37 super.draw;
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38
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39 window.renderer.drawBlank (x,y, w,h);
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40 }
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41 }
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42
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43 /// A completely resizable blank widget (initial size zero).
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44 class SizableBlankWidget : SizableWidget
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45 {
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46 this (IWindow wind, int[] data) {
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47 if (data.length != 1) throw new WidgetDataException;
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48 super (wind, data);
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49 }
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50
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51 void draw () {
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52 super.draw;
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53
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54 window.renderer.drawBlank (x,y, w,h);
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55 }
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56 }
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57
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58 /// First interactible widget
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59 class ButtonWidget : FixedWidget
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60 {
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61 bool pushed = false; // true if button is pushed in (visually)
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62 // pushed is not the same as the button being clicked but not yet released.
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63 // it is whether the mouse is over the button after being clicked.
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64
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65 this (IWindow wind, int[] data) {
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66 if (data.length != 3) throw new WidgetDataException;
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67 super (wind, data);
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68 }
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69
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70 void draw () {
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71 window.renderer.drawButton (x,y, w,h, pushed);
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72 }
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73
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74 void clickEvent (ushort, ushort, ubyte b, bool state) {
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75 if (b == 1 && state == true) {
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76 pushed = true;
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77 window.requestRedraw;
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78 window.gui.addClickCallback (&clickWhileHeld);
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79 window.gui.addMotionCallback (&motionWhileHeld);
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80 }
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81 }
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82 // Called when a mouse motion/click event occurs while (held == true)
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83 bool clickWhileHeld (ushort cx, ushort cy, ubyte b, bool state) {
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84 if (b == 1 && state == false) {
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85 if (cx >= x && cx < x+w && cy >= y && cy < y+h) // button event
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86 Stdout ("Button clicked!").newline;
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87
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88 pushed = false;
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89 window.requestRedraw;
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90 window.gui.removeCallbacks (cast(void*) this);
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91
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92 return true;
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93 }
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94 return false;
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95 }
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96 void motionWhileHeld (ushort cx, ushort cy) {
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97 bool oldPushed = pushed;
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98 if (cx >= x && cx < x+w && cy >= y && cy < y+h) pushed = true;
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99 else pushed = false;
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100 if (oldPushed != pushed)
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101 window.requestRedraw;
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102 }
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103 }
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104
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105 /// Basic text widget
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106 class TextWidget : Widget
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107 {
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108 this (IWindow wind, int[] data) {
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109 if (data.length != 2) throw new WidgetDataException;
49
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110 if (font is null) font = FontStyle.get("default");
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111 font.updateBlock (str, textCache);
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112 mw = textCache.w;
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113 mh = textCache.h;
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114 colour = Colour (cast(ubyte) (data[1] >> 16u),
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115 cast(ubyte) (data[1] >> 8u),
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116 cast(ubyte) data[1] );
45
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117 super (wind,data);
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118 }
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119
0fd51d2c6c8a Several changes to resising windows and layout widgets. This commit still has some bugs.
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120 void draw () {
0fd51d2c6c8a Several changes to resising windows and layout widgets. This commit still has some bugs.
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121 super.draw();
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122 font.textBlock (x,y, str, textCache, colour); // test new-lines and unicode characters
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0fd51d2c6c8a Several changes to resising windows and layout widgets. This commit still has some bugs.
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123 }
0fd51d2c6c8a Several changes to resising windows and layout widgets. This commit still has some bugs.
Diggory Hardy <diggory.hardy@gmail.com>
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124
0fd51d2c6c8a Several changes to resising windows and layout widgets. This commit still has some bugs.
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125 protected:
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126 const str = "Text Widget\nαβγ − ΑΒΓ";
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127 TextBlock textCache;
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128 Colour colour;
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129 static FontStyle font;
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130 }