Mercurial > projects > doodle
annotate standard_tools.d @ 16:9e63308b749c
* Fix up public/private includes
* Make Mask a struct
| author | David Bryant <daveb@acres.com.au> |
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| date | Mon, 13 Jul 2009 16:16:17 +0930 |
| parents | 0b7e7d43a79d |
| children | c643c04e3f5e |
| rev | line source |
|---|---|
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
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changeset
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1 module standard_tools; |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
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2 |
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* Fix up public/private includes
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3 public { |
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4 import tool; |
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5 } |
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* Fix up public/private includes
David Bryant <daveb@acres.com.au>
parents:
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6 |
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David Bryant <daveb@acres.com.au>
parents:
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7 private { |
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8 import std.math; |
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9 } |
| 7 | 10 |
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* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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11 final class PanTool : Tool { |
| 10 | 12 bool handle_button_press(Viewport viewport, in ButtonEvent event) { |
| 7 | 13 if (event.button_name == ButtonName.MIDDLE) { |
| 8 | 14 mLastPosition = event.screen_point; |
| 7 | 15 return true; |
| 16 } | |
| 17 else { | |
| 18 return false; | |
| 19 } | |
| 20 } | |
| 21 | |
| 10 | 22 bool handle_button_release(Viewport viewport, in ButtonEvent event) { |
| 8 | 23 return true; |
| 7 | 24 } |
| 25 | |
| 10 | 26 bool handle_motion(Viewport viewport, in MotionEvent event) { |
| 13 | 27 if (event.mask.is_set(Modifier.MIDDLE_BUTTON)) { |
| 10 | 28 viewport.rel_pan(mLastPosition - event.screen_point); |
| 8 | 29 mLastPosition = event.screen_point; |
| 30 | |
| 31 return true; | |
| 32 } | |
| 33 else { | |
| 34 return false; | |
| 35 } | |
| 7 | 36 } |
| 37 | |
| 10 | 38 bool handle_scroll(Viewport viewport, in ScrollEvent event) { |
| 13 | 39 if (event.mask.is_unset(Modifier.MIDDLE_BUTTON)) { |
| 9 | 40 Vector delta; |
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* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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41 |
| 8 | 42 switch (event.scroll_direction) { |
| 43 case ScrollDirection.UP: | |
| 14 | 44 delta = event.mask.is_set(Modifier.SHIFT) ? Vector(AMOUNT, 0.0) : Vector(0.0, AMOUNT); |
| 8 | 45 break; |
| 46 case ScrollDirection.DOWN: | |
| 14 | 47 delta = event.mask.is_set(Modifier.SHIFT) ? Vector(-AMOUNT, 0.0) : Vector(0.0, -AMOUNT); |
| 8 | 48 break; |
| 49 case ScrollDirection.LEFT: | |
| 9 | 50 delta = Vector(-AMOUNT, 0.0); |
| 8 | 51 break; |
| 52 case ScrollDirection.RIGHT: | |
| 9 | 53 delta = Vector(AMOUNT, 0.0); |
| 8 | 54 break; |
| 55 } | |
| 56 | |
| 10 | 57 viewport.rel_pan(delta); |
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58 } |
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59 |
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60 return true; |
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David Bryant <daveb@acres.com.au>
parents:
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61 } |
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62 |
| 10 | 63 bool handle_key_press(Viewport viewport, in KeyEvent event) { |
| 7 | 64 return false; |
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65 } |
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* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
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66 |
| 10 | 67 bool handle_key_release(Viewport viewport, in KeyEvent event) { |
| 7 | 68 return false; |
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* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
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69 } |
| 8 | 70 |
| 71 private { | |
| 72 Point mLastPosition; | |
| 9 | 73 static invariant double AMOUNT = 60.0; |
| 8 | 74 } |
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* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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75 } |
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* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
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changeset
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76 |
| 7 | 77 final class ZoomTool : Tool { |
| 10 | 78 bool handle_button_press(Viewport viewport, in ButtonEvent event) { |
| 7 | 79 return false; |
| 80 } | |
| 81 | |
| 10 | 82 bool handle_button_release(Viewport viewport, in ButtonEvent event) { |
| 7 | 83 return false; |
| 84 } | |
| 85 | |
| 10 | 86 bool handle_motion(Viewport viewport, in MotionEvent event) { |
| 7 | 87 return false; |
| 88 } | |
| 89 | |
| 10 | 90 bool handle_scroll(Viewport viewport, in ScrollEvent event) { |
| 7 | 91 if (event.mask.is_set(Modifier.CONTROL)) { |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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92 if (event.scroll_direction == ScrollDirection.DOWN) { |
| 10 | 93 viewport.rel_zoom(event.screen_point(), 1.0 / ZOOM); |
| 9 | 94 return true; |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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95 } |
| 9 | 96 else if (event.scroll_direction == ScrollDirection.UP) { |
| 10 | 97 viewport.rel_zoom(event.screen_point(), ZOOM); |
| 9 | 98 return true; |
| 99 } | |
| 100 else { | |
| 101 return false; | |
| 102 } | |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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103 } |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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104 else { |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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105 return false; |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
|
106 } |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
|
107 } |
| 7 | 108 |
| 10 | 109 bool handle_key_press(Viewport viewport, in KeyEvent event) { |
| 7 | 110 return false; |
| 111 } | |
| 112 | |
| 10 | 113 bool handle_key_release(Viewport viewport, in KeyEvent event) { |
| 7 | 114 return false; |
| 115 } | |
| 9 | 116 |
| 117 private { | |
| 118 static invariant double ZOOM = sqrt(2.0); | |
| 119 } | |
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d6f44347373d
* Switched over to geometry done with structs instead of classes.
David Bryant <daveb@acres.com.au>
parents:
diff
changeset
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120 } |