Update widgets module. Raster example initial.

Widgets/examples/SimpleGUI.cpp

@@ -0,0 +1,44 @@
+
+#include "ChatGUI.hpp"
+
+#include "GraphicApplication.hpp"
+
+using namespace tp;
+
+class SimpleGUI : public Application {
+public:
+	SimpleGUI() {
+		mGui.mContents.append(&mButton);
+		mGui.mContents.append(&mSlider);
+		mGui.mContents.append(&mLabel);
+	}
+
+	void processFrame(EventHandler* eventHandler) override {
+
+		mGui.updateConfigCache(mWidgetManager);
+
+		mSlider.updateConfigCache(mWidgetManager);
+		mLabel.updateConfigCache(mWidgetManager);
+		mButton.updateConfigCache(mWidgetManager);
+
+		const auto rec = RectF({ 0, 0 }, mWindow->getSize());
+		mGui.proc(*eventHandler, rec, rec);
+	}
+
+	void drawFrame(Canvas* canvas) override { mGui.draw(*canvas); }
+
+private:
+	WidgetManager mWidgetManager;
+	ScrollableWindow<EventHandler, Canvas> mGui;
+
+	ButtonWidget<EventHandler, Canvas> mButton;
+	LabelWidget<EventHandler, Canvas> mLabel;
+	SliderWidget<EventHandler, Canvas> mSlider;
+};
+
+int main() {
+	{
+		SimpleGUI gui;
+		gui.run();
+	}
+}