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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 11:50:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 11:50:49 +0000
commitc853ffb5b2f75f5a889ed2e3ef89b818a736e87a (patch)
tree7d13a0883bb7936b84d6ecdd7bc332b41ed04bee /src/display/README
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Adding upstream version 1.3+ds.upstream/1.3+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+
+
+This directory contains code for: rendering graphics on the canvas,
+"picking" objects on the canvas based on closeness to cursor, directing
+events (mouse button, key press, etc.) to the correct object.
+
+The code can be divided into two types: handling SVG elements
+(DrawingItem and derived classes) and handling controlled items
+(SPCanvasItem and derived structures/classes).
+
+Currently we rely on the "Cairo" graphics library for rendering.
+
+DrawingItem:
+
+ Item belonging to the drawing. These are rendered via the
+ CanvasArena canvas item.
+
+CanvasItem:
+
+ See README in control sub-directory.
+
+To do:
+
+* Split into three directories: drawing, control, common (partially done).
+* Rename control directory to canvas directory.
+* Remove SPCurve.