Add a LayerStyle for drawing background blur effects. #441

Hparty · 2025-01-23T02:19:10Z

支持backgroundBlurStyle

src/layers/Layer.cpp

include/tgfx/layers/layerstyles/LayerStyle.h

src/layers/Layer.cpp

domchen · 2025-01-24T06:30:01Z

src/layers/Layer.cpp

+  for (const auto& layerStyle : _layerStyles) {
+    if (layerStyle->extraSourceType() == LayerStyleExtraSourceType::Contour) {
+      needContour = true;
+    } else if (!forBackground &&
+               layerStyle->extraSourceType() == LayerStyleExtraSourceType::Background) {
+      // in background mode, we should not collect background image.
+      needBackground = true;
+    }
+    if (needContour && (forBackground || needBackground)) {
+      break;
+    }


拆开写吧

domchen · 2025-01-24T06:38:01Z

src/layers/Layer.cpp

+    if (layerStyle->extraSourceType() == LayerStyleExtraSourceType::Contour && contour != nullptr) {
+      layerStyle->drawWithExtraSource(canvas, source->content, source->contentScale, contour,
+                                      contourOffset, alpha);
+    } else if (layerStyle->extraSourceType() == LayerStyleExtraSourceType::Background &&
+               background != nullptr) {
+      layerStyle->drawWithExtraSource(canvas, source->content, source->contentScale, background,
+                                      backgroundOffset, alpha);


如果require不满足就不执行LayerStyle的draw

Support backgroundBlurStyle.

c2494a2

Hparty requested review from kevingpqi123, domchen and shlzxjp as code owners January 23, 2025 02:19

domchen changed the title ~~Support backgroundBlurStyle.~~ Add a LayerStyle for drawing background blur effects. Jan 23, 2025