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22 #ifndef _TVG_CANVAS_IMPL_H_
23 #define _TVG_CANVAS_IMPL_H_
27 /************************************************************************/
28 /* Internal Class Implementation */
29 /************************************************************************/
34 RenderMethod* renderer;
35 bool refresh = false; //if all paints should be updated by force.
37 Impl(RenderMethod* pRenderer):renderer(pRenderer)
47 Result push(unique_ptr<Paint> paint)
49 auto p = paint.release();
50 if (!p) return Result::MemoryCorruption;
53 return update(p, true);
56 Result clear(bool free)
58 //Clear render target before drawing
59 if (!renderer || !renderer->clear()) return Result::InsufficientCondition;
63 for (auto paint = paints.data; paint < (paints.data + paints.count); ++paint) {
64 (*paint)->pImpl->dispose(*renderer);
71 return Result::Success;
79 Result update(Paint* paint, bool force)
81 if (!renderer) return Result::InsufficientCondition;
83 Array<RenderData> clips;
84 auto flag = RenderUpdateFlag::None;
85 if (refresh || force) flag = RenderUpdateFlag::All;
87 //Update single paint node
89 dlog_print(DLOG_ERROR, LOG_TAG, "Canvas(%p) update a paint(%p)", this, paint);
90 paint->pImpl->update(*renderer, nullptr, 255, clips, flag);
91 //Update all retained paint nodes
93 dlog_print(DLOG_ERROR, LOG_TAG, "Canvas(%p) update paints count(%d)", this, paints.count);
94 for (auto paint = paints.data; paint < (paints.data + paints.count); ++paint) {
95 (*paint)->pImpl->update(*renderer, nullptr, 255, clips, flag);
101 dlog_print(DLOG_ERROR, LOG_TAG, "Canvas(%p) update finished", this);
103 return Result::Success;
108 if (!renderer || !renderer->preRender()) return Result::InsufficientCondition;
110 dlog_print(DLOG_ERROR, LOG_TAG, "Canvas(%p) draw paints count(%d)", this, paints.count);
112 for (auto paint = paints.data; paint < (paints.data + paints.count); ++paint) {
113 if (!(*paint)->pImpl->render(*renderer)) return Result::InsufficientCondition;
116 if (!renderer->postRender()) return Result::InsufficientCondition;
118 dlog_print(DLOG_ERROR, LOG_TAG, "Canvas(%p) draw finished", this);
120 return Result::Success;
124 #endif /* _TVG_CANVAS_IMPL_H_ */