partly implement parentless button

src/dialogxml/widgets/button.cpp

@@ -13,6 +13,7 @@
 #include "dialogxml/dialogs/dialog.hpp"
 #include "gfx/render_image.hpp"
 #include "gfx/render_text.hpp"
+#include "tools/winutil.hpp"
 
 #include "fileio/resmgr/res_image.hpp"
 
@@ -329,3 +330,35 @@ void cButton::initPreset() {
 			break;
 	}
 }
+
+// Parentless button handle input
+bool cButton::handle_event(const sf::Event& event) {
+	// Not visible -> not interested
+	if(!this->isVisible())
+		return false;
+
+	switch(event.type) {
+		case sf::Event::MouseButtonPressed:{
+			location where = {(int)(event.mouseButton.x / get_ui_scale()), (int)(event.mouseButton.y / get_ui_scale())};
+			// Making a framerate limiter just for this is not great
+			cFramerateLimiter fps;
+			if(getBounds().contains(where)){
+				// TODO handleClick calls redraw() but this doesn't seem to reach the drawable_manager
+				// because the button never appears depressed
+				if(this->handleClick(where, fps)){
+					// Also bad:
+					cDialog dummy_dlg;
+					eKeyMod mod;
+					triggerClickHandler(dummy_dlg, "", mod);
+				}
+				return true;
+			}
+		}break;
+		case sf::Event::KeyPressed:
+			// TODO parentless button handle hotkey
+			break;
+		default: break;
+	}
+
+	return false;
+}

src/dialogxml/widgets/button.hpp

@@ -10,6 +10,8 @@
 #define BUTTON_H
 
 #include "control.hpp"
+#include "drawable.hpp"
+#include "event_listener.hpp"
 
 /// A button type.
 enum eBtnType {	// w x h
@@ -31,7 +33,7 @@ enum eBtnType {	// w x h
 
 
 /// A clickable button control.
-class cButton : public cControl {
+class cButton : public cControl, public iEventListener, public iDrawable{
 public:
 	/// @copydoc cDialog::init()
 	static void init();
@@ -64,6 +66,7 @@ public:
 	}
 	cButton& operator=(cButton& other) = delete;
 	cButton(cButton& other) = delete;
+	bool handle_event(const sf::Event&) override;
 protected:
 	/// The type of button.
 	eBtnType type;