WIP: GUI Toolkit

View.cc

@@ -0,0 +1,109 @@
+#include "View.hh"
+
+View::View(int width, int height, std::string name)
+  : Widget(width, height, std::move(name))
+{
+}
+
+View::~View()
+{
+}
+
+void View::addChild(std::unique_ptr<Widget> child)
+{
+  _setParent(*child);
+  children_.push_back(make_tuple(child->getName(), std::move(child), SDL_Rect{0, 0, 0, 0}));
+  
+  layout();
+}
+  
+Widget& View::getChildByName(std::string name)
+{
+  if (name == "")
+    throw ChildNotFoundException{};
+  
+  for(auto& ent : children_) {
+    if (std::get<0>(ent) == name)
+      return *std::get<1>(ent);
+  }
+
+  throw ChildNotFoundException{};
+}
+  
+Widget const& View::getChildByName(std::string name) const
+{
+  if (name == "")
+    throw ChildNotFoundException{};
+  
+  for(auto& ent : children_) {
+    if (std::get<0>(ent) == name)
+      return *std::get<1>(ent);
+  }
+
+  throw ChildNotFoundException{};
+}
+
+std::unique_ptr<Widget> View::removeChild(std::string name)
+{
+  if (name == "")
+    throw ChildNotFoundException{};
+  
+  for(auto it = children_.begin(); it != children_.end(); ++it) {
+    if (std::get<0>(*it) == name) {
+      auto child = std::move(std::get<1>(*it));
+      children_.erase(it);
+      _clearParent(*child);
+      _layout(*child);
+      
+      layout();
+      
+      return child;
+    } 
+  }
+
+  throw ChildNotFoundException{};
+}
+
+std::unique_ptr<Widget> View::removeChild(Widget& child)
+{
+  for(auto it = children_.begin(); it != children_.end(); ++it) {
+    if (std::get<1>(*it).get() == &child) {
+      auto child = std::move(std::get<1>(*it));
+      children_.erase(it);
+      
+      _clearParent(*child);
+      _layout(*child);
+      
+      layout();
+      
+      return child;
+    } 
+  }
+
+  throw ChildNotFoundException{};
+}
+
+
+void View::render(SDL_Surface *dst, SDL_Rect *dstRect) const
+{
+  Widget::render(dst, dstRect);
+
+  SDL_Rect rect;
+  if (dstRect)
+    memcpy(&rect, dstRect, sizeof(SDL_Rect));
+  else {
+    rect.x = 0;
+    rect.y = 0;
+    rect.w = dst->w;
+    rect.h = dst->h;
+  }
+  
+  for (auto& ent : children_) {
+    SDL_Rect childDst = std::get<2>(ent), childDstCliped;
+    childDst.x += rect.x;
+    childDst.y += rect.y;
+    SDL_IntersectRect(&rect, &childDst, &childDstCliped);
+
+    std::get<1>(ent)->render(dst, &childDst);
+  }
+}