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Change empty/filled Ellipse drawing to draw ellipse inscribed in rectangle

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still to do gradient ellipses.

see http://pulkomandy.tk/projects/GrafX2/ticket/54
This commit is contained in:
Thomas Bernard
2018-03-04 02:08:47 +01:00
parent d6ce86cae4
commit c1afa188a2
3 changed files with 142 additions and 4 deletions
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5
src/graph.h
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@@ -75,6 +75,11 @@ void Draw_empty_ellipse_preview (short center_x,short center_y,short horizontal
void Hide_empty_ellipse_preview (short center_x,short center_y,short horizontal_radius,short vertical_radius);
void Draw_filled_ellipse (short center_x,short center_y,short horizontal_radius,short vertical_radius,byte color);
void Draw_empty_inscribed_ellipse_permanent(short x1,short y1,short x2, short y2,byte color);
void Draw_empty_inscribed_ellipse_preview(short x1,short y1,short x2,short y2,byte color);
void Hide_empty_inscribed_ellipse_preview(short x1,short y1,short x2,short y2);
void Draw_filled_inscribed_ellipse(short x1,short y1,short x2,short y2,byte color);
void Clamp_coordinates_regular_angle(short ax, short ay, short* bx, short* by);
void Draw_line_general(short start_x,short start_y,short end_x,short end_y, byte color);
void Draw_line_permanent (short start_x,short start_y,short end_x,short end_y,byte color);