Mercurial > projects > dynamin
annotate dynamin/gui/radio_button.d @ 103:73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
| author | Jordan Miner <jminer7@gmail.com> |
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| date | Tue, 15 May 2012 22:06:02 -0500 |
| parents | 7c5c50a06ffe |
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| rev | line source |
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| 0 | 1 |
| 2 /* | |
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103
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3 * Copyright Jordan Miner |
| 0 | 4 * |
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103
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5 * This Source Code Form is subject to the terms of the Mozilla Public |
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6 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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7 * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| 0 | 8 * |
| 9 */ | |
| 10 | |
| 11 module dynamin.gui.radio_button; | |
| 12 | |
| 13 import dynamin.all_core; | |
| 14 import dynamin.all_gui; | |
| 15 import dynamin.all_painting; | |
| 16 import tango.io.Stdout; | |
| 17 | |
| 18 /** | |
| 19 * A control that can be checked only if other radio buttons are unchecked. | |
| 20 * | |
| 21 * The appearance of a radio button with Windows Classic: | |
| 22 * | |
| 23 * $(IMAGE ../web/example_radio_button.png) | |
| 24 */ | |
| 25 class RadioButton : CheckBox { | |
| 26 protected: | |
| 27 int _group = 1; | |
| 28 RadioButton[] collectGroup(ref int checkedIndex) { | |
| 29 Window topLevel = cast(Window)getTopLevel(); | |
| 30 if(!topLevel) | |
| 31 return null; | |
| 32 RadioButton[] radios; | |
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33 void collectFromContainer(Container container) { |
| 0 | 34 foreach(control; container) { |
| 35 if(auto r = cast(RadioButton)control) { | |
| 36 if(r.group != group) | |
| 37 continue; | |
| 38 radios.length = radios.length + 1; | |
| 39 radios[$-1] = r; | |
| 40 if(r.checked) | |
| 41 checkedIndex = radios.length-1; | |
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42 } else if(auto c = cast(Container)control) |
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43 collectFromContainer(c); |
| 0 | 44 } |
| 45 } | |
| 46 checkedIndex = -1; | |
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47 collectFromContainer(topLevel.content); |
| 0 | 48 return radios; |
| 49 } | |
| 50 override void whenKeyDown(KeyEventArgs e) { | |
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51 // TODO: when getTopLevel() is changed to return NativeControl, |
| 0 | 52 // update this |
| 53 int index; | |
| 54 if(e.key == Key.Down || e.key == Key.Right) { | |
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55 RadioButton[] radios = collectGroup(index); |
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56 if(radios is null) |
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57 return; |
| 0 | 58 if(++index >= radios.length) |
| 59 index = 0; | |
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60 radios[index].clicked(new EventArgs); |
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61 e.stopped = true; |
| 0 | 62 } else if(e.key == Key.Up || e.key == Key.Left) { |
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63 RadioButton[] radios = collectGroup(index); |
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64 if(radios is null) |
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65 return; |
| 0 | 66 if(--index < 0) |
| 67 index = radios.length-1; | |
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68 radios[index].clicked(new EventArgs); |
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69 e.stopped = true; |
| 0 | 70 } |
| 71 } | |
| 72 override void whenPainting(PaintingEventArgs e) { | |
| 73 Theme.current.RadioButton_paint(this, e.graphics); | |
| 74 } | |
| 75 override void whenClicked(EventArgs e) { | |
| 76 int index; | |
| 77 RadioButton[] radios = collectGroup(index); | |
| 78 foreach(r; radios) | |
| 79 r.checked = false; | |
| 80 checked = true; | |
| 81 focus(); | |
| 82 | |
| 83 } | |
| 84 public: | |
| 85 this() { | |
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86 _focusable = false; |
| 0 | 87 } |
| 88 this(string text) { | |
| 89 this(); | |
| 90 this.text = text; | |
| 91 } | |
| 92 override Size bestSize() { | |
| 93 return Size(70, 15); | |
| 94 } | |
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95 alias CheckBox.checked checked; |
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96 override void checked(bool b) { |
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97 focusable = b; |
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98 super.checked(b); |
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99 } |
| 0 | 100 /** |
| 101 * Gets or sets what group this radio button is a part of. The default is 1. | |
| 102 */ | |
| 103 int group() { return _group; } | |
| 104 /// ditto | |
| 105 void group(int i) { _group = i; } | |
| 106 } | |
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107 |
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108 /** |
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109 * Simply sets every radio button to have the specified group. |
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parents:
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110 * |
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111 * Example: |
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112 * ----- |
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113 * auto radioButton1 = new RadioButton; |
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114 * auto radioButton2 = new RadioButton; |
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115 * setGroup(7, radioButton1, radioButton2); |
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116 * ----- |
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117 */ |
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118 void setGroup(int group, RadioButton[] radios...) { |
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119 foreach(r; radios) |
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120 r.group = group; |
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121 } |
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122 |