add SkSize for dimensions
add SkShape baseclass, in the hopes of having SkPicture inherit from that, and
also using shapes as the extension mechanism for things like animated-gif
git-svn-id: http://skia.googlecode.com/svn/trunk@174 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/shapes/SkGroupShape.cpp b/src/shapes/SkGroupShape.cpp
new file mode 100644
index 0000000..1322fe4
--- /dev/null
+++ b/src/shapes/SkGroupShape.cpp
@@ -0,0 +1,87 @@
+#include "SkGroupShape.h"
+
+SkGroupShape::SkGroupShape() {}
+
+SkGroupShape::~SkGroupShape() {
+ this->removeAllShapes();
+}
+
+int SkGroupShape::countShapes() const {
+ return fList.count();
+}
+
+SkShape* SkGroupShape::getShape(int index) const {
+ if ((unsigned)index < (unsigned)fList.count()) {
+ return fList[index];
+ }
+ return NULL;
+}
+
+SkShape* SkGroupShape::addShape(int index, SkShape* shape) {
+ int count = fList.count();
+ if (NULL == shape || index < 0 || index > count) {
+ return shape;
+ }
+
+ shape->ref();
+ SkShape** spot;
+ if (index == count) {
+ spot = fList.append();
+ } else {
+ spot = fList.insert(index);
+ }
+ *spot = shape;
+ return shape;
+}
+
+void SkGroupShape::removeShape(int index) {
+ if ((unsigned)index < (unsigned)fList.count()) {
+ fList[index]->unref();
+ fList.remove(index);
+ }
+}
+
+void SkGroupShape::removeAllShapes() {
+ fList.unrefAll();
+ fList.reset();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+void SkGroupShape::onDraw(SkCanvas* canvas) {
+ SkShape** iter = fList.begin();
+ SkShape** stop = fList.end();
+ while (iter < stop) {
+ (*iter)->draw(canvas);
+ iter++;
+ }
+}
+
+SkFlattenable::Factory SkGroupShape::getFactory() {
+ return CreateProc;
+}
+
+void SkGroupShape::flatten(SkFlattenableWriteBuffer& buffer) {
+ this->INHERITED::flatten(buffer);
+
+ int count = fList.count();
+ buffer.write32(count);
+ for (int i = 0; i < count; i++) {
+ buffer.writeFunctionPtr((void*)fList[i]->getFactory());
+ fList[i]->flatten(buffer);
+ }
+}
+
+SkGroupShape::SkGroupShape(SkFlattenableReadBuffer& buffer) : INHERITED(buffer){
+ int count = buffer.readS32();
+ for (int i = 0; i < count; i++) {
+ SkFlattenable::Factory fact =
+ (SkFlattenable::Factory)buffer.readFunctionPtr();
+ this->appendShape((SkShape*)fact(buffer))->unref();
+ }
+}
+
+SkFlattenable* SkGroupShape::CreateProc(SkFlattenableReadBuffer& buffer) {
+ return SkNEW_ARGS(SkGroupShape, (buffer));
+}
+