Mercurial > projects > doodle
annotate doodle/gtk/canvas.d @ 82:0314b2e03f9b
Moved gtk/conversions.d int gtk/events.d
Nearly done with the housekeeping...
author | "David Bryant <bagnose@gmail.com>" |
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date | Mon, 16 Aug 2010 00:08:19 +0930 |
parents | d92b9f04b1e8 |
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rev | line source |
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Part-way through getting to compile with configure/builder.
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1 module doodle.gtk.canvas; |
0 | 2 |
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3 public { |
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4 import doodle.dia.icanvas; |
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5 import doodle.gtk.events; |
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6 } |
0 | 7 |
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8 private { |
40 | 9 import doodle.core.logging; |
81 | 10 import doodle.tk.screen_model; |
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11 import doodle.dia.layer_stack; |
81 | 12 import doodle.gtk.cairo; |
0 | 13 |
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14 import cairo.Surface; |
81 | 15 import cairo.Context; |
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16 |
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17 import gtk.Widget; |
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18 import gtk.Toolbar; |
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19 import gtk.Table; |
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20 import gtk.HRuler; |
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21 import gtk.VRuler; |
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22 import gtk.Range; |
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23 import gtk.HScrollbar; |
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24 import gtk.VScrollbar; |
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25 import gtk.DrawingArea; |
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26 import gtk.Adjustment; |
0 | 27 |
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28 import gdk.Drawable; |
0 | 29 |
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30 import gtkc.gtk; |
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31 import gtkc.gtktypes; |
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32 //import gtkc.gdktypes; |
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33 |
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34 import std.math; |
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35 import std.stdio; |
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36 } |
0 | 37 |
68 | 38 final class Canvas : Table, private IViewport { |
69 | 39 this(in Layer[] layers, IEventHandler eventHandler, IGrid grid, in double pixelsPerMillimetre) { |
0 | 40 super(3, 3, 0); |
41 | |
73 | 42 _damageScreen = Rectangle.DEFAULT; |
17 | 43 |
48 | 44 _eventHandler = eventHandler; |
45 _grid = grid; | |
69 | 46 _pixelsPerMillimetre = pixelsPerMillimetre; |
0 | 47 |
79 | 48 _layerStack = new LayerStack(layers); |
49 | |
13 | 50 // Create our child widgets and register callbacks |
51 | |
48 | 52 _hRuler = new HRuler; |
53 attach(_hRuler, | |
0 | 54 1, 2, |
55 0, 1, | |
56 AttachOptions.FILL | AttachOptions.EXPAND, AttachOptions.SHRINK, | |
57 0, 0); | |
48 | 58 _hRuler.setMetric(MetricType.PIXELS); |
0 | 59 |
48 | 60 _vRuler = new VRuler; |
61 attach(_vRuler, | |
0 | 62 0, 1, |
63 1, 2, | |
64 AttachOptions.SHRINK, AttachOptions.FILL | AttachOptions.EXPAND, | |
65 0, 0); | |
48 | 66 _vRuler.setMetric(MetricType.PIXELS); |
0 | 67 |
48 | 68 _drawingArea = new DrawingArea; |
69 _drawingArea.addOnRealize(&onRealize); | |
70 _drawingArea.addOnConfigure(&onConfigure); | |
71 _drawingArea.addOnExpose(&onExpose); | |
81 | 72 _drawingArea.addOnButtonPress(&onButtonPress); |
48 | 73 _drawingArea.addOnButtonRelease(&onButtonRelease); |
81 | 74 _drawingArea.addOnKeyPress(&onKeyPressEvent); |
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75 _drawingArea.addOnKeyRelease(&onKeyReleaseEvent); |
48 | 76 _drawingArea.addOnMotionNotify(&onMotionNotify); |
77 _drawingArea.addOnScroll(&onScroll); | |
81 | 78 _drawingArea.addOnEnterNotify(&onEnterNotify); |
48 | 79 _drawingArea.addOnLeaveNotify(&onLeaveNotify); |
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80 |
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81 _drawingArea.addOnFocusIn(&onFocusIn); |
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82 _drawingArea.addOnFocusOut(&onFocusOut); |
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83 _drawingArea.addOnMoveFocus(&onMoveFocus); |
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84 _drawingArea.addOnGrabBroken(&onGrabBroken); |
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85 _drawingArea.addOnGrabFocus(&onGrabFocus); |
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86 _drawingArea.addOnGrabNotify(&onGrabNotify); |
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87 // addOnPopupMenu |
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88 // addOnQueryTooltip |
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89 // addOnSelection* |
48 | 90 _drawingArea.setEvents(EventMask.EXPOSURE_MASK | |
20 | 91 EventMask.POINTER_MOTION_MASK | |
92 EventMask.POINTER_MOTION_HINT_MASK | | |
93 EventMask.BUTTON_MOTION_MASK | | |
94 EventMask.BUTTON_PRESS_MASK | | |
95 EventMask.BUTTON_RELEASE_MASK | | |
96 EventMask.KEY_PRESS_MASK | | |
97 EventMask.KEY_RELEASE_MASK | | |
98 EventMask.ENTER_NOTIFY_MASK | | |
99 EventMask.LEAVE_NOTIFY_MASK | | |
100 EventMask.FOCUS_CHANGE_MASK | | |
101 EventMask.SCROLL_MASK); | |
102 | |
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103 _drawingArea.setCanFocus(true); |
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104 |
48 | 105 attach(_drawingArea, |
0 | 106 1, 2, |
107 1, 2, | |
108 AttachOptions.FILL | AttachOptions.EXPAND, AttachOptions.FILL | AttachOptions.EXPAND, | |
109 0, 0); | |
110 | |
111 // value, lower, upper, step-inc, page-inc, page-size | |
112 // Give the adjustments dummy values until we receive a configure | |
48 | 113 _hAdjustment = new Adjustment(0.0, 0.0, 1.0, 0.2, 0.5, 0.5); |
67 | 114 _hAdjustment.addOnValueChanged(&onAdjustmentValueChanged); |
48 | 115 _hScrollbar = new HScrollbar(_hAdjustment); |
116 _hScrollbar.setInverted(false); | |
117 attach(_hScrollbar, | |
0 | 118 1, 2, |
119 2, 3, | |
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120 AttachOptions.FILL | AttachOptions.EXPAND, |
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121 AttachOptions.SHRINK, |
0 | 122 0, 0); |
123 | |
48 | 124 _vAdjustment = new Adjustment(0.0, 0.0, 1.0, 0.2, 0.5, 0.5); |
67 | 125 _vAdjustment.addOnValueChanged(&onAdjustmentValueChanged); |
48 | 126 _vScrollbar = new VScrollbar(_vAdjustment); |
127 _vScrollbar.setInverted(true); | |
128 attach(_vScrollbar, | |
0 | 129 2, 3, |
130 1, 2, | |
131 AttachOptions.SHRINK, | |
132 AttachOptions.FILL | AttachOptions.EXPAND, | |
133 0, 0); | |
79 | 134 |
135 _cursors = [ | |
136 Cursor.DEFAULT : CursorType.ARROW, | |
137 Cursor.HAND : CursorType.HAND1, | |
138 Cursor.CROSSHAIR : CursorType.CROSSHAIR, | |
139 Cursor.PENCIL : CursorType.PENCIL | |
140 ]; | |
0 | 141 } |
142 | |
68 | 143 protected { // XXX the compiler complains about unimplemented methods if this is private |
62 | 144 |
68 | 145 // IViewport overrides: |
0 | 146 |
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147 void zoomRelative(in Point screenDatum, in double factor) { |
77 | 148 _screenModel.zoomRelative(factor, screenDatum); |
68 | 149 consolidateBounds; |
150 updateAdjustments; | |
151 updateRulers; | |
77 | 152 _grid.zoomChanged(_screenModel.zoom); |
68 | 153 queueDraw; |
27 | 154 } |
155 | |
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156 void panRelative(in Vector screenDisplacement) { |
77 | 157 _screenModel.panRelativeScreen(screenDisplacement); |
68 | 158 consolidateBounds; |
159 updateAdjustments; | |
160 updateRulers; | |
161 queueDraw; | |
162 } | |
163 | |
164 void setCursor(in Cursor cursor) { | |
79 | 165 _drawingArea.setCursor(new gdk.Cursor.Cursor(_cursors[cursor])); |
68 | 166 } |
167 | |
168 void damageModel(in Rectangle area) { | |
77 | 169 _damageScreen = _damageScreen | _screenModel.modelToScreen(area); |
68 | 170 } |
171 | |
77 | 172 void damageScreen(in Rectangle area) { |
73 | 173 _damageScreen = _damageScreen | area; |
68 | 174 } |
18 | 175 } |
176 | |
0 | 177 private { |
178 | |
77 | 179 void initialiseBounds(in Rectangle viewBoundsScreen) { |
79 | 180 Rectangle layerBounds = _layerStack.bounds; |
181 Rectangle paddedLayerBounds = growCentre(layerBounds, 2 * layerBounds.size); | |
77 | 182 _screenModel = new ScreenModel(0.25 * _pixelsPerMillimetre, paddedLayerBounds, viewBoundsScreen); |
183 _grid.zoomChanged(_screenModel.zoom); | |
62 | 184 |
185 updateAdjustments; | |
186 updateRulers; | |
187 } | |
188 | |
189 void consolidateBounds() { | |
79 | 190 Rectangle layerBounds = _layerStack.bounds; |
191 Rectangle paddedLayerBounds = growCentre(layerBounds, 2 * layerBounds.size); | |
77 | 192 _screenModel.consolidateCanvasBounds(paddedLayerBounds); |
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193 |
62 | 194 updateAdjustments; |
195 updateRulers; | |
196 } | |
35 | 197 |
62 | 198 bool onConfigure(GdkEventConfigure * event, Widget widget) { |
199 assert(widget is _drawingArea); | |
200 | |
77 | 201 Rectangle viewBoundsScreen = Rectangle(Point(0.0, 0.0), Vector(cast(double)event.width, cast(double)event.height)); |
79 | 202 if (_screenModel is null) { initialiseBounds(viewBoundsScreen); } |
203 else { consolidateBounds; } | |
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204 |
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205 return true; |
0 | 206 } |
207 | |
48 | 208 bool onExpose(GdkEventExpose * event, Widget widget) { |
209 assert(widget is _drawingArea); | |
0 | 210 |
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211 gdk.Drawable.Drawable dr = _drawingArea.getWindow; |
0 | 212 |
213 int width, height; | |
214 dr.getSize(width, height); | |
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215 //trace("Got expose %dx%d\n", width, height); |
0 | 216 |
48 | 217 scope modelCr = new Context(dr); |
77 | 218 scope screenCr = new Context(dr); |
12 | 219 |
77 | 220 Rectangle screenDamage = |
221 event is null ? _screenModel.viewBoundsScreen : | |
222 Rectangle(_screenModel.viewBoundsScreen.position + Vector(cast(double)event.area.x, _screenModel.viewBoundsScreen.h - cast(double)(event.area.y + event.area.height)), | |
11 | 223 Vector(cast(double)event.area.width, cast(double)event.area.height)); |
0 | 224 |
77 | 225 Rectangle modelDamage = _screenModel.screenToModel(screenDamage); |
19 | 226 |
77 | 227 modelCr.save; screenCr.save; { |
67 | 228 { |
229 // Setup model context and clip | |
77 | 230 modelCr.translate(0.0, _screenModel.viewBoundsScreen.h); |
231 modelCr.scale(_screenModel.zoom, -_screenModel.zoom); | |
12 | 232 |
77 | 233 immutable Point viewLeftBottom = _screenModel.screenToModel(Point(0.0, 0.0)); |
67 | 234 modelCr.translate(-viewLeftBottom.x, -viewLeftBottom.y); |
0 | 235 |
81 | 236 modelCr.rectangle(modelDamage.x0, modelDamage.y0, modelDamage.w, modelDamage.h); |
67 | 237 modelCr.clip; |
238 } | |
12 | 239 |
67 | 240 { |
77 | 241 // Setup screen context and clip |
242 screenCr.translate(0.0, _screenModel.viewBoundsScreen.h); | |
243 screenCr.scale(1.0, -1.0); | |
19 | 244 |
81 | 245 screenCr.rectangle(screenDamage.x0, screenDamage.y0, screenDamage.w, screenDamage.h); |
77 | 246 screenCr.clip; |
67 | 247 } |
12 | 248 |
77 | 249 screenCr.save; { |
67 | 250 // Fill the background with light grey |
77 | 251 screenCr.setSourceRgba(0.9, 0.9, 0.9, 1.0); |
81 | 252 screenCr.rectangle(screenDamage.x0, screenDamage.y0, screenDamage.w, screenDamage.h); |
77 | 253 screenCr.fill; |
254 } screenCr.restore; | |
12 | 255 |
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256 _layerStack.draw(screenDamage, new CairoDrawable(screenCr), |
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257 modelDamage, new CairoDrawable(modelCr)); |
77 | 258 } screenCr.restore; modelCr.restore; |
0 | 259 |
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260 return true; |
0 | 261 } |
262 | |
48 | 263 bool onButtonPress(GdkEventButton * event, Widget widget) { |
264 assert(widget is _drawingArea); | |
78 | 265 _eventHandler.handleButtonPress(this, makeButtonEvent(event, _screenModel)); |
48 | 266 fixDamage; |
5 | 267 return true; |
268 } | |
269 | |
48 | 270 bool onButtonRelease(GdkEventButton * event, Widget widget) { |
271 assert(widget is _drawingArea); | |
78 | 272 _eventHandler.handleButtonRelease(this, makeButtonEvent(event, _screenModel)); |
48 | 273 fixDamage; |
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274 return true; |
0 | 275 } |
276 | |
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277 bool onKeyPressEvent(GdkEventKey * event, Widget widget) { |
48 | 278 assert(widget is _drawingArea); |
78 | 279 _eventHandler.handleKeyPress(this, makeKeyEvent(event, _screenModel)); |
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280 fixDamage; |
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281 return true; |
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282 } |
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283 |
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284 bool onKeyReleaseEvent(GdkEventKey * event, Widget widget) { |
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285 assert(widget is _drawingArea); |
77 | 286 _eventHandler.handleKeyRelease(this, makeKeyEvent(event, _screenModel)); |
48 | 287 fixDamage; |
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288 return true; |
0 | 289 } |
290 | |
48 | 291 bool onMotionNotify(GdkEventMotion * event, Widget widget) { |
292 assert(widget is _drawingArea); | |
73 | 293 |
77 | 294 // Pass the events on to the rulers so that they update |
295 gtk_widget_event(_hRuler.getWidgetStruct(), cast(GdkEvent *)event); | |
296 gtk_widget_event(_vRuler.getWidgetStruct(), cast(GdkEvent *)event); | |
0 | 297 |
77 | 298 _eventHandler.handleMotion(this, makeMotionEvent(event, _screenModel)); |
48 | 299 fixDamage; |
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300 return true; |
0 | 301 } |
302 | |
48 | 303 bool onScroll(GdkEventScroll * event, Widget widget) { |
304 assert(widget is _drawingArea); | |
77 | 305 _eventHandler.handleScroll(this, makeScrollEvent(event, _screenModel)); |
48 | 306 fixDamage; |
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307 return true; |
0 | 308 } |
309 | |
48 | 310 bool onEnterNotify(GdkEventCrossing * event, Widget widget) { |
311 assert(widget is _drawingArea); | |
77 | 312 _eventHandler.handleEnter(this, makeCrossingEvent(event, _screenModel)); |
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313 fixDamage; |
20 | 314 return true; |
315 } | |
316 | |
48 | 317 bool onLeaveNotify(GdkEventCrossing * event, Widget widget) { |
318 assert(widget is _drawingArea); | |
77 | 319 _eventHandler.handleLeave(this, makeCrossingEvent(event, _screenModel)); |
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320 fixDamage; |
20 | 321 return true; |
322 } | |
323 | |
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324 bool onFocusIn(GdkEventFocus * event, Widget widget) { |
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325 trace("onFocusIn"); |
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326 return true; |
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327 } |
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328 |
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329 bool onFocusOut(GdkEventFocus * event, Widget widget) { |
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330 trace("onFocusOut"); |
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331 return true; |
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332 } |
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333 |
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334 void onMoveFocus(GtkDirectionType direction, Widget widget) { |
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335 trace("onMoveFocus"); |
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336 } |
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337 |
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338 bool onGrabBroken(gdk.Event.Event event, Widget widget) { |
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339 trace("onGrabBroken"); |
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340 return true; |
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341 } |
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342 |
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343 void onGrabFocus(Widget widget) { |
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344 //trace("onGrabFocus"); |
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345 } |
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346 |
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347 void onGrabNotify(gboolean what, Widget widget){ |
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348 trace("onGrabNotify"); |
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349 } |
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350 |
67 | 351 void onAdjustmentValueChanged(Adjustment adjustment) { |
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352 GtkAdjustment * hGtkAdjustment = _hAdjustment.getAdjustmentStruct; |
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353 GtkAdjustment * vGtkAdjustment = _vAdjustment.getAdjustmentStruct; |
0 | 354 |
77 | 355 Point oldViewLeftBottom = _screenModel.screenToModel(Point(0.0, 0.0)); |
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356 Point newViewLeftBottom = Point(gtk_adjustment_get_value(hGtkAdjustment), |
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357 gtk_adjustment_get_value(vGtkAdjustment)); |
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358 |
77 | 359 _screenModel.panRelativeModel(newViewLeftBottom - oldViewLeftBottom); |
0 | 360 |
48 | 361 updateRulers; |
13 | 362 queueDraw; |
0 | 363 } |
364 | |
48 | 365 void updateRulers() { |
79 | 366 immutable Point viewLeftBottom = _screenModel.screenToModel(_screenModel.viewBoundsScreen.corner0); |
77 | 367 immutable Point viewRightTop = _screenModel.screenToModel(_screenModel.viewBoundsScreen.corner1); |
0 | 368 |
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369 // Define these just to obtain the position |
81 | 370 // below so we can preserve it |
48 | 371 double lower, upper, position, maxSize; |
12 | 372 |
48 | 373 _hRuler.getRange(lower, upper, position, maxSize); |
374 _hRuler.setRange(viewLeftBottom.x, | |
375 viewRightTop.x, | |
12 | 376 position, |
77 | 377 _screenModel.zoom * 50.0); |
12 | 378 |
48 | 379 _vRuler.getRange(lower, upper, position, maxSize); |
380 _vRuler.setRange(viewRightTop.y, | |
381 viewLeftBottom.y, | |
14 | 382 position, |
77 | 383 _screenModel.zoom * 50.0); |
0 | 384 } |
385 | |
48 | 386 void updateAdjustments() { |
77 | 387 immutable Point viewLeftBottom = _screenModel.screenToModel(Point(0.0, 0.0)); |
388 immutable Point viewRightTop = _screenModel.screenToModel(_screenModel.viewBoundsScreen.corner1); | |
0 | 389 |
79 | 390 // Adjust the canvas size if necessary |
77 | 391 _screenModel.canvasAccommodate(Rectangle(viewLeftBottom, viewRightTop)); |
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392 |
79 | 393 Rectangle viewBoundsModel = _screenModel.viewBoundsModel; |
0 | 394 |
395 // Update the adjustments | |
396 | |
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397 GtkAdjustment * hGtkAdjustment = _hAdjustment.getAdjustmentStruct; |
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398 GtkAdjustment * vGtkAdjustment = _vAdjustment.getAdjustmentStruct; |
0 | 399 |
77 | 400 gtk_adjustment_set_lower(hGtkAdjustment, _screenModel.canvasBoundsModel.x0); |
401 gtk_adjustment_set_upper(hGtkAdjustment, _screenModel.canvasBoundsModel.x1); | |
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402 gtk_adjustment_set_value(hGtkAdjustment, viewLeftBottom.x); |
77 | 403 gtk_adjustment_set_step_increment(hGtkAdjustment, _screenModel.canvasBoundsModel.w / 16.0); |
404 gtk_adjustment_set_page_increment(hGtkAdjustment, _screenModel.canvasBoundsModel.w / 4.0); | |
79 | 405 gtk_adjustment_set_page_size(hGtkAdjustment, viewBoundsModel.w); |
0 | 406 |
77 | 407 gtk_adjustment_set_lower(vGtkAdjustment, _screenModel.canvasBoundsModel.y0); |
408 gtk_adjustment_set_upper(vGtkAdjustment, _screenModel.canvasBoundsModel.y1); | |
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409 gtk_adjustment_set_value(vGtkAdjustment, viewLeftBottom.y); |
77 | 410 gtk_adjustment_set_step_increment(vGtkAdjustment, _screenModel.canvasBoundsModel.h / 16.0); |
411 gtk_adjustment_set_page_increment(vGtkAdjustment, _screenModel.canvasBoundsModel.h / 4.0); | |
79 | 412 gtk_adjustment_set_page_size(vGtkAdjustment, viewBoundsModel.h); |
0 | 413 |
48 | 414 _hAdjustment.changed; |
415 _hAdjustment.valueChanged; | |
416 _vAdjustment.changed; | |
417 _vAdjustment.valueChanged; | |
0 | 418 } |
419 | |
48 | 420 void fixDamage() { |
73 | 421 if (_damageScreen.valid) { |
17 | 422 int x, y, w, h; |
73 | 423 _damageScreen.getQuantised(x, y, w, h); |
77 | 424 _drawingArea.queueDrawArea(x, cast(int)_screenModel.viewBoundsScreen.h - (y + h), w, h); |
73 | 425 _damageScreen = Rectangle.DEFAULT; |
17 | 426 } |
427 } | |
428 | |
48 | 429 void onRealize(Widget widget) { |
430 assert(widget is _drawingArea); | |
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431 _drawingArea.grabFocus(); |
27 | 432 } |
433 | |
73 | 434 IEventHandler _eventHandler; |
435 IGrid _grid; | |
436 double _pixelsPerMillimetre; | |
79 | 437 LayerStack _layerStack; |
438 | |
10 | 439 // Child widgets: |
73 | 440 HRuler _hRuler; |
441 VRuler _vRuler; | |
442 DrawingArea _drawingArea; | |
443 Adjustment _hAdjustment; | |
444 HScrollbar _hScrollbar; | |
445 Adjustment _vAdjustment; | |
446 VScrollbar _vScrollbar; | |
11 | 447 |
79 | 448 Rectangle _damageScreen; |
77 | 449 ScreenModel _screenModel; |
81 | 450 |
451 immutable CursorType[Cursor] _cursors; | |
0 | 452 } |
453 } |