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annotate doodle/dia/icanvas.d @ 91:42766e14534e

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Update screenViewBounds when the window is resized
author daveb
date Thu, 19 Aug 2010 18:28:18 +0930
parents 467febed7367
children a98116479793
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rev   line source
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Graham St Jack <graham.stjack@internode.on.net>
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1 module doodle.dia.icanvas;
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3 public {
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4 import doodle.tk.geometry;
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5 import doodle.tk.events;
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6 import doodle.tk.renderer;
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7 import doodle.tk.screen_model;
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8 }
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10 private {
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11 import std.typecons;
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12 }
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14 mixin(defineEnum!("Cursor",
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15 "DEFAULT", "HAND", "CROSSHAIR", "PENCIL"));
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17 interface IViewport2 {
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18 void damageModel(in Rectangle area);
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19 void damageScreen(in Rectangle area);
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20 }
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22 interface IViewport : IViewport2 {
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23 void zoomRelative(in Point screenDatum, in double factor); // FIXME reorder arguments
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24 void panRelative(in Vector screenDisplacement);
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25 void setCursor(in Cursor cursor);
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26 }
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28 /*
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29 final class Damage {
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30 void increase(in Rectangle additional) { _rectangle = _rectangle | additional; }
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31 Rectangle rectangle() const { return _rectangle; }
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32 private Rectangle _rectangle;
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33 }
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34 */
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36 interface IEventHandler {
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37 bool handleButtonPress(scope IViewport viewport, in ButtonEvent event);
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38 bool handleButtonRelease(scope IViewport viewport, in ButtonEvent event);
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39 bool handleMotion(scope IViewport viewport, in MotionEvent event);
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40 bool handleScroll(scope IViewport viewport, in ScrollEvent event);
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41 bool handleEnter(scope IViewport viewport, CrossingEvent event);
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42 bool handleLeave(scope IViewport viewport, CrossingEvent event);
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43 bool handleKeyPress(scope IViewport viewport, in KeyEvent event);
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44 bool handleKeyRelease(scope IViewport viewport, in KeyEvent event);
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46 // XXX Still not sure about these:
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47 //bool handleFocusIn(scope IViewport viewport, FocusEvent event);
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48 //bool handleFocusOut(scope IViewport viewport, FocusEvent event);
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49 }
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51 interface IGrid {
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52 void zoomChanged(double zoom);
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54 // TODO inout?
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55 bool snap(in Point a, out Point b) const; // XXX remove this and add it to Layer
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56 }
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58 interface IPage {
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59 // TODO
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60 }
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62 abstract class Layer {
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63 this(in string name) {
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64 _name = name;
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65 }
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67 string name() const { return _name; }
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69 Rectangle bounds() const;
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71 void draw(in Rectangle screenDamage, scope Renderer screenRenderer,
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72 in Rectangle modelDamage, scope Renderer modelRenderer,
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73 in ScreenModel screenModel) const;
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75 private {
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76 immutable string _name;
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77 }
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78 }