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84
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1 module doodle.tk.renderer;
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73
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2
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3 public {
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4 import doodle.tk.geometry;
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5 import doodle.tk.color;
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6 }
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7
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84
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8 interface Renderer {
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73
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9 enum LineStyle {
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10 SOLID,
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11 DASHED,
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12 DOTTED
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13 }
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14
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79
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15 enum FontFace {
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16 NORMAL
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17 }
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18
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19 // Low-level state manipulation
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20
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79
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21 void setLineStyle(LineStyle style);
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22 void setLineWidth(in double width);
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23 void setColor(in Color color);
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24
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25 void translate(in Point p);
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26 void scale(in double s);
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27
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28 void pushState(); // Copies all of current state
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29 void popState(); // Restores all of previous state
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30
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79
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31 // High-level drawing routines
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32
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79
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33 void drawRectangle(in Rectangle rectangle, bool fill);
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34 void drawEllipse(in Rectangle rectangle, bool fill);
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35 void drawSegment(in Segment segment);
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36 void drawHLine(in double y, in double x0, in double x1);
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37 void drawVLine(in double x, in double y0, in double y1);
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38 void drawPoly(in Point[] points, bool fill);
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39
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40 // Text routines
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41
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42 void setFontFace(in FontFace face);
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43 void setFontSize(in double size);
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44 void drawText(in string text);
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45
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46 void measureText(in string text, out Rectangle logicalBounds, out Rectangle totalBounds) const;
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47 }
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