1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
#pragma once
#include "StarWidget.hpp"
namespace Star {
STAR_CLASS(CanvasWidget);
// Very simple Widget that allows easy drawing to its surface, to easily tie a
// simplified rendering / input context into the regular widget / GuiReader
// system.
class CanvasWidget : public Widget {
public:
struct ClickEvent {
Vec2I position;
MouseButton button;
// True when button down, false when key up
bool buttonDown;
};
struct KeyEvent {
Key key;
// True when key down, false when key up
bool keyDown;
};
unsigned MaximumEventBuffer = 16;
CanvasWidget();
void setCaptureMouseEvents(bool captureMouse);
void setCaptureKeyboardEvents(bool captureKeyboard);
void setIgnoreInterfaceScale(bool ignoreInterfaceScale);
bool ignoreInterfaceScale() const;
// Returns mouse position relative to the lower left of the drawing region.
Vec2I mousePosition() const;
// Pulls recent click events relative to the lower left of the drawing
// region, if configured to capture mouse events
List<ClickEvent> pullClickEvents();
// Pulls recent key events captured by this Canvas, if configured to capture
// key events.
List<KeyEvent> pullKeyEvents();
bool sendEvent(InputEvent const& event) override;
KeyboardCaptureMode keyboardCaptured() const override;
// Call before drawing to clear old draw data.
void clear();
void drawImage(String texName, Vec2F const& position, float scale = 1.0f, Vec4B const& color = Vec4B(255, 255, 255, 255));
void drawImageRect(String texName, RectF const& texCoords, RectF const& screenCoords, Vec4B const& color);
void drawImageCentered(String texName, Vec2F const& position, float scale = 1.0f, Vec4B const& color = Vec4B(255, 255, 255, 255));
void drawDrawable(Drawable drawable, Vec2F const& screenPos);
void drawDrawables(List<Drawable> drawables, Vec2F const& screenPos);
// Draw an image whose texture is applied over the entire screen rect in a
// tiled manner, so that it wraps in X and Y.
void drawTiledImage(String texName, float textureScale, Vec2D const& offset, RectF const& screenCoords, Vec4B const& color = Vec4B::filled(255));
void drawLine(Vec2F const& begin, Vec2F const end, Vec4B const& color = Vec4B(255, 255, 255, 255), float lineWidth = 1.0f);
void drawRect(RectF const& coords, Vec4B const& color = Vec4B(255, 255, 255, 255));
void drawPoly(PolyF const& poly, Vec4B const& color = Vec4B(255, 255, 255, 255), float lineWidth = 1.0f);
void drawTriangles(List<tuple<Vec2F, Vec2F, Vec2F>> const& poly, Vec4B const& color = Vec4B(255, 255, 255, 255));
void drawText(String s, TextPositioning position, unsigned fontSize, Vec4B const& color = Vec4B(255, 255, 255, 255), FontMode mode = FontMode::Normal, float lineSpacing = Star::DefaultLineSpacing, String font = "", String processingDirectives = "");
void drawText(String s, TextPositioning position, TextStyle style);
protected:
void renderImpl() override;
void renderImage(Vec2F const& renderingOffset, String const& texName, Vec2F const& position, float scale, Vec4B const& color, bool centered);
void renderImageRect(Vec2F const& renderingOffset, String const& texName, RectF const& texCoords, RectF const& screenCoords, Vec4B const& color);
void renderDrawable(Vec2F const& renderingOffset, Drawable drawable, Vec2F const& screenPos);
void renderTiledImage(Vec2F const& renderingOffset, String const& texName, float textureScale, Vec2D const& offset, RectF const& screenCoords, Vec4B const& color);
void renderLine(Vec2F const& renderingOffset, Vec2F const& begin, Vec2F const end, Vec4B const& color, float lineWidth);
void renderRect(Vec2F const& renderingOffset, RectF const& coords, Vec4B const& color);
void renderPoly(Vec2F const& renderingOffset, PolyF poly, Vec4B const& color, float lineWidth);
void renderTriangles(Vec2F const& renderingOffset, List<tuple<Vec2F, Vec2F, Vec2F>> const& triangles, Vec4B const& color);
void renderText(Vec2F const& renderingOffset, String const& s, TextPositioning const& position, TextStyle const& style);
private:
bool m_ignoreInterfaceScale;
bool m_captureKeyboard;
bool m_captureMouse;
Vec2I m_mousePosition;
List<ClickEvent> m_clickEvents;
List<KeyEvent> m_keyEvents;
typedef tuple<RectF, Vec4B> RectOp;
typedef tuple<String, Vec2F, float, Vec4B, bool> ImageOp;
typedef tuple<String, RectF, RectF, Vec4B> ImageRectOp;
typedef tuple<Drawable, Vec2F> DrawableOp;
typedef tuple<String, float, Vec2D, RectF, Vec4B> TiledImageOp;
typedef tuple<Vec2F, Vec2F, Vec4B, float> LineOp;
typedef tuple<PolyF, Vec4B, float> PolyOp;
typedef tuple<List<tuple<Vec2F, Vec2F, Vec2F>>, Vec4B> TrianglesOp;
typedef tuple<String, TextPositioning, TextStyle> TextOp;
typedef MVariant<RectOp, ImageOp, ImageRectOp, DrawableOp, TiledImageOp, LineOp, PolyOp, TrianglesOp, TextOp> RenderOp;
List<RenderOp> m_renderOps;
};
}
|