Mercurial > projects > doodle
annotate doodle/dia/icanvas.d @ 36:188397ef9a12
Late night tinkering
| author | David Bryant <bagnose@gmail.com> |
|---|---|
| date | Sun, 30 Aug 2009 23:36:31 +0930 |
| parents | 3f6bb0bb22dc |
| children | f2e4e1d29b98 |
| rev | line source |
|---|---|
|
28
1754cb773d41
Part-way through getting to compile with configure/builder.
Graham St Jack <graham.stjack@internode.on.net>
parents:
27
diff
changeset
|
1 module doodle.dia.icanvas; |
| 0 | 2 |
| 26 | 3 public { |
|
28
1754cb773d41
Part-way through getting to compile with configure/builder.
Graham St Jack <graham.stjack@internode.on.net>
parents:
27
diff
changeset
|
4 import doodle.tk.geometry; |
|
1754cb773d41
Part-way through getting to compile with configure/builder.
Graham St Jack <graham.stjack@internode.on.net>
parents:
27
diff
changeset
|
5 import doodle.tk.events; |
| 26 | 6 import cairo.Context; |
| 7 } | |
| 0 | 8 |
| 27 | 9 private { |
| 10 import std.typecons; | |
| 11 } | |
| 12 | |
| 13 mixin(defineEnum!("Cursor", | |
| 14 "DEFAULT", "HAND", "CROSSHAIR")); | |
| 15 | |
| 10 | 16 interface Viewport { |
| 26 | 17 void zoom_relative(in Point pixel_datum, in double factor); |
| 18 void pan_relative(in Vector pixel_displacement); | |
| 27 | 19 void set_cursor(in Cursor cursor); |
|
34
c2f11e1d7470
Geometry cleanup and checkpoint.
David Bryant <bagnose@gmail.com>
parents:
28
diff
changeset
|
20 |
|
c2f11e1d7470
Geometry cleanup and checkpoint.
David Bryant <bagnose@gmail.com>
parents:
28
diff
changeset
|
21 // FIXME get rid of these and accumulate damage during event handling |
| 26 | 22 void damage_model(in Rectangle area); // FIXME could be an inout parameter of the event handling, or a special scope Damage object that supports growth only |
| 23 void damage_pixel(in Rectangle area); // FIXME as above | |
| 10 | 24 |
| 27 | 25 /* |
| 35 | 26 // FIXME hoping we won't need anything like this |
| 11 | 27 double zoom() const; |
| 26 | 28 Point model_to_pixel(in Point model) const; |
| 29 Point pixel_to_model(in Point pixel) const; | |
| 30 Vector model_to_pixel(in Vector model) const; | |
| 31 Vector pixel_to_model(in Vector pixel) const; | |
| 32 Rectangle model_to_pixel(in Rectangle model) const; | |
| 33 Rectangle pixel_to_model(in Rectangle model) const; | |
| 34 double model_to_pixel(in double model) const; | |
| 35 double pixel_to_model(in double pixel) const; | |
| 27 | 36 */ |
| 0 | 37 } |
| 38 | |
| 10 | 39 interface EventHandler { |
| 26 | 40 bool handle_button_press(scope Viewport viewport, in ButtonEvent event); |
| 41 bool handle_button_release(scope Viewport viewport, in ButtonEvent event); | |
| 42 bool handle_motion(scope Viewport viewport, in MotionEvent event); | |
| 43 bool handle_scroll(scope Viewport viewport, in ScrollEvent event); | |
| 44 //bool handle_enter(scope Viewport viewport, CrossingEvent event); | |
| 45 //bool handle_leave(scope Viewport viewport, CrossingEvent event); | |
| 46 //bool handle_focus_in(scope Viewport viewport, FocusEvent event); | |
| 47 //bool handle_focus_out(scope Viewport viewport, FocusEvent event); | |
| 48 bool handle_key_press(scope Viewport viewport, in KeyEvent event); | |
| 49 bool handle_key_release(scope Viewport viewport, in KeyEvent event); | |
| 0 | 50 } |
| 10 | 51 |
| 35 | 52 interface Grid { |
| 53 void zoom_changed(double zoom); | |
| 54 | |
| 36 | 55 // TODO inout? |
| 35 | 56 bool snap(in Point a, out Point b) const; |
| 57 } | |
| 58 | |
| 36 | 59 interface Page { |
| 60 // TODO | |
| 61 } | |
| 62 | |
| 10 | 63 abstract class Layer { |
| 12 | 64 this(in string name) { |
| 65 mName = name; | |
| 66 } | |
| 67 | |
| 68 string name() const { return mName; } | |
| 69 | |
| 11 | 70 Rectangle bounds() const; |
| 35 | 71 |
| 26 | 72 void draw(in Viewport viewport, |
| 19 | 73 in Rectangle pixel_damage, scope Context pixel_cr, |
| 74 in Rectangle model_damage, scope Context model_cr) const; | |
| 12 | 75 |
| 76 private { | |
| 77 invariant string mName; | |
| 78 } | |
| 10 | 79 } |