Mercurial > projects > doodle
view doodle/dia/icanvas.d @ 105:7abaf5c3959f
Merge
author | David Bryant <bagnose@gmail.com> |
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date | Sun, 20 Feb 2011 22:27:06 +1030 |
parents | ab745d8b10e5 523269b36711 |
children | bc5baa585b32 |
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module doodle.dia.icanvas; public { import doodle.tk.geometry; import doodle.tk.events; import doodle.tk.renderer; import doodle.tk.screen_model; } private { import std.typecons; } enum Cursor { DEFAULT, HAND, CROSSHAIR, PENCIL } interface IViewport2 { void damageModel(in Rectangle area); void damageScreen(in Rectangle area); } interface IViewport : IViewport2 { void zoomRelative(in double factor, in Point screenDatum); void panRelative(in Vector screenDisplacement); void setCursor(in Cursor cursor); } /* final class Damage { void increase(in Rectangle additional) { _rectangle = _rectangle | additional; } Rectangle rectangle() const { return _rectangle; } private Rectangle _rectangle; } */ interface IEventHandler { bool handleButtonPress(scope IViewport viewport, in ButtonEvent event); bool handleButtonRelease(scope IViewport viewport, in ButtonEvent event); bool handleMotion(scope IViewport viewport, in MotionEvent event); bool handleScroll(scope IViewport viewport, in ScrollEvent event); bool handleEnter(scope IViewport viewport, in CrossingEvent event); bool handleLeave(scope IViewport viewport, in CrossingEvent event); bool handleKeyPress(scope IViewport viewport, in KeyEvent event); bool handleKeyRelease(scope IViewport viewport, in KeyEvent event); // XXX Still not sure about these: //bool handleFocusIn(scope IViewport viewport, FocusEvent event); //bool handleFocusOut(scope IViewport viewport, FocusEvent event); } interface IGrid { void zoomChanged(in double zoom); } interface IPage { } abstract class Layer { this(in string name) { _name = name; } string name() const { return _name; } Rectangle bounds() const; //bool snap(in Point a, out Point b) const; void draw(in Rectangle screenDamage, scope Renderer screenRenderer, in Rectangle modelDamage, scope Renderer modelRenderer, in ScreenModel screenModel) const; private { immutable string _name; } }