Mercurial > projects > dynamin
annotate dynamin/gui/button.d @ 103:73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
| author | Jordan Miner <jminer7@gmail.com> |
|---|---|
| date | Tue, 15 May 2012 22:06:02 -0500 |
| parents | 651082a9b364 |
| children |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* | |
|
103
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
78
diff
changeset
|
3 * Copyright Jordan Miner |
| 0 | 4 * |
|
103
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
78
diff
changeset
|
5 * This Source Code Form is subject to the terms of the Mozilla Public |
|
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
78
diff
changeset
|
6 * License, v. 2.0. If a copy of the MPL was not distributed with this |
|
73060bc3f004
Change license to Boost 1.0 and MPL 2.0.
Jordan Miner <jminer7@gmail.com>
parents:
78
diff
changeset
|
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| 0 | 8 * |
| 9 */ | |
| 10 | |
| 11 module dynamin.gui.button; | |
| 12 | |
| 13 import dynamin.all_core; | |
| 14 import dynamin.all_gui; | |
| 15 import dynamin.all_painting; | |
| 62 | 16 import dynamin.gui.control; |
| 17 import dynamin.gui.events; | |
| 0 | 18 import tango.io.Stdout; |
| 19 import dynamin.c.cairo; // TODO: remove | |
| 20 | |
| 21 // TODO: maybe change to ControlState and add Disabled ? | |
| 22 enum ButtonState { | |
| 23 Normal, Hot, Pressed | |
| 24 } | |
| 25 // TODO: move to another file | |
| 26 enum TextImageRelation { | |
| 27 Overlay, TextBeforeImage, ImageBeforeText, TextAboveImage, ImageAboveText | |
| 28 } | |
| 29 | |
| 30 /** | |
| 31 * A button is a control that can be clicked to perform an action. | |
| 32 * | |
| 33 * The appearance of a button with Windows Classic: | |
| 34 * | |
| 35 * $(IMAGE ../web/example_button.png) | |
| 36 */ | |
| 37 class Button : Control { | |
| 38 protected: | |
| 62 | 39 package bool _isDefault; |
| 0 | 40 ButtonState _state; |
| 62 | 41 override void whenFocusGained(EventArgs e) { |
| 42 super.whenFocusGained(e); | |
| 43 auto anc = findAncestor((Container c) { | |
| 44 return c.defaultButton !is null; | |
| 45 }); | |
| 46 if(anc) { | |
| 47 foreach(d; &anc.descendants) { | |
| 48 if(auto b = cast(Button)d) | |
| 49 b._isDefault = false; | |
| 50 } | |
| 51 } | |
| 52 _isDefault = true; | |
| 53 } | |
| 54 override void whenFocusLost(EventArgs e) { | |
| 55 super.whenFocusLost(e); | |
| 56 _isDefault = false; | |
| 57 auto anc = findAncestor((Container c) { | |
| 58 return c.defaultButton !is null; | |
| 59 }); | |
| 60 if(anc) | |
| 61 anc.defaultButton._isDefault = true; | |
| 62 } | |
| 0 | 63 override void whenMouseDragged(MouseEventArgs e) { |
| 64 if(contains(e.x, e.y)) | |
| 65 state = ButtonState.Pressed; | |
| 66 else | |
| 67 state = ButtonState.Normal; | |
| 68 } | |
| 69 override void whenMouseEntered(EventArgs e) { | |
| 70 state = ButtonState.Hot; | |
| 71 } | |
| 72 override void whenMouseLeft(EventArgs e) { | |
| 73 state = ButtonState.Normal; | |
| 74 } | |
| 75 override void whenMouseDown(MouseEventArgs e) { | |
| 76 if(e.button == MouseButton.Left) { | |
| 77 state = ButtonState.Pressed; | |
| 78 focus(); | |
| 79 } | |
| 80 } | |
| 81 override void whenMouseUp(MouseEventArgs e) { | |
| 82 if(state != ButtonState.Pressed) return; | |
| 83 state = ButtonState.Hot; | |
| 84 clicked(new EventArgs); | |
| 85 } | |
| 86 override void whenKeyDown(KeyEventArgs e) { | |
| 62 | 87 if(e.key == Key.Space) { |
| 0 | 88 state = ButtonState.Pressed; |
| 62 | 89 e.stopped = true; |
| 90 } else if(e.key == Key.Enter) { // being default is implied in keyDown | |
| 91 scope e2 = new EventArgs; | |
| 92 clicked(e2); | |
| 93 e.stopped = true; | |
| 94 } | |
| 0 | 95 } |
| 96 override void whenKeyUp(KeyEventArgs e) { | |
| 97 if(e.key == Key.Space) { | |
| 98 if(state != ButtonState.Pressed) return; | |
| 99 state = ButtonState.Normal; | |
| 62 | 100 scope e2 = new EventArgs; |
| 101 clicked(e2); | |
| 102 e.stopped = true; | |
| 0 | 103 } |
| 104 } | |
| 105 override void whenPainting(PaintingEventArgs e) { | |
| 106 Theme.current.Button_paint(this, e.graphics); | |
| 107 return; | |
| 108 // TODO: move to a theme or delete | |
| 109 with(e.graphics) { | |
| 110 if(_state == ButtonState.Hot) | |
| 111 source = Color(200, 0, 0); | |
| 112 else if(_state == ButtonState.Pressed) | |
| 113 source = Color(110, 0, 0); | |
| 114 else | |
| 115 source = Color(220, 80, 80); | |
| 116 moveTo(3, 0); | |
| 117 lineTo(width-3, 0); | |
| 118 lineTo(width, 3); | |
| 119 lineTo(width, height-3); | |
| 120 lineTo(width-3, height); | |
| 121 lineTo(3, height); | |
| 122 lineTo(0, height-3); | |
| 123 lineTo(0, 3); | |
| 124 closePath(); | |
| 125 fill(); | |
| 126 auto grad = cairo_pattern_create_linear(0, 0, 0, height/2+3); | |
| 127 cairo_pattern_add_color_stop_rgba(grad, 0, 1, 1, 1, .4); | |
| 128 cairo_pattern_add_color_stop_rgba(grad, 1, 1, 1, 1, .05); | |
| 129 cairo_set_source(handle, grad); | |
| 130 cairo_pattern_destroy(grad); | |
| 131 moveTo(3, 0); | |
| 132 lineTo(width-3, 0); | |
| 133 lineTo(width, 3); | |
| 134 lineTo(width, cast(int)height/2-3); | |
| 135 lineTo(width-3, cast(int)height/2); | |
| 136 lineTo(3, cast(int)height/2); | |
| 137 lineTo(0, cast(int)height/2+3); | |
| 138 lineTo(0, 3); | |
| 139 closePath(); | |
| 140 fill(); | |
| 141 | |
| 142 source = _state == ButtonState.Pressed ? Color.White : Color.Black; | |
| 143 fontSize = 13; | |
| 144 drawText(text, 5, height/2); | |
| 145 } | |
| 146 return; | |
| 147 | |
| 148 } | |
| 149 public void paintFore(Graphics g) { | |
| 150 auto extents = g.getTextExtents(text); | |
| 151 g.drawText(text, (width-extents.width)/2, (height-extents.height)/2); | |
| 152 } | |
| 153 | |
| 154 public: | |
|
10
ccc108b25a0a
Convert to using a struct for events. Fix some comments too.
Jordan Miner <jminer7@gmail.com>
parents:
0
diff
changeset
|
155 /// Override this method in a subclass to handle the clicked event. |
| 0 | 156 protected void whenClicked(EventArgs e) { } |
| 157 /// This event occurs after the button has been clicked. | |
|
10
ccc108b25a0a
Convert to using a struct for events. Fix some comments too.
Jordan Miner <jminer7@gmail.com>
parents:
0
diff
changeset
|
158 Event!(whenClicked) clicked; |
| 0 | 159 |
| 63 | 160 /// |
| 0 | 161 this() { |
|
78
651082a9b364
Add Event.setUp() and use in place of mainHandler and dispatcher.
Jordan Miner <jminer7@gmail.com>
parents:
63
diff
changeset
|
162 clicked.setUp(&whenClicked); |
| 0 | 163 _focusable = true; |
| 164 } | |
| 63 | 165 /// |
| 0 | 166 this(string text) { |
| 167 this(); | |
| 168 this.text = text; | |
| 169 } | |
| 170 override Size bestSize() { return Theme.current.Button_bestSize(this); } | |
| 63 | 171 /// |
| 0 | 172 ButtonState state() { return _state; } |
| 63 | 173 /// |
| 0 | 174 void state(ButtonState s) { _state = s; repaint(); } |
| 62 | 175 /** |
| 176 * Returns true if this button should be painted as being default. | |
| 177 * Mainly for themes. | |
| 178 */ | |
| 179 bool isDefault() { return _isDefault; } | |
| 0 | 180 } |