Moved window stack management from GuiHandler to new class

client/gui/WindowHandler.cpp

@@ -0,0 +1,115 @@
+/*
+ * WindowHandler.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+#include "WindowHandler.h"
+
+#include "CGuiHandler.h"
+#include "CIntObject.h"
+#include "CursorHandler.h"
+
+#include "../CMT.h"
+#include "../CGameInfo.h"
+#include "../render/Colors.h"
+#include "../renderSDL/SDL_Extensions.h"
+
+void WindowHandler::popInt(std::shared_ptr<IShowActivatable> top)
+{
+	assert(listInt.front() == top);
+	top->deactivate();
+	disposed.push_back(top);
+	listInt.pop_front();
+	objsToBlit -= top;
+	if(!listInt.empty())
+		listInt.front()->activate();
+	totalRedraw();
+}
+
+void WindowHandler::pushInt(std::shared_ptr<IShowActivatable> newInt)
+{
+	assert(newInt);
+	assert(!vstd::contains(listInt, newInt)); // do not add same object twice
+
+	//a new interface will be present, we'll need to use buffer surface (unless it's advmapint that will alter screenBuf on activate anyway)
+	screenBuf = screen2;
+
+	if(!listInt.empty())
+		listInt.front()->deactivate();
+	listInt.push_front(newInt);
+	CCS->curh->set(Cursor::Map::POINTER);
+	newInt->activate();
+	objsToBlit.push_back(newInt);
+	totalRedraw();
+}
+
+void WindowHandler::popInts(int howMany)
+{
+	if(!howMany)
+		return; //senseless but who knows...
+
+	assert(listInt.size() >= howMany);
+	listInt.front()->deactivate();
+	for(int i = 0; i < howMany; i++)
+	{
+		objsToBlit -= listInt.front();
+		disposed.push_back(listInt.front());
+		listInt.pop_front();
+	}
+
+	if(!listInt.empty())
+	{
+		listInt.front()->activate();
+		totalRedraw();
+	}
+	GH.fakeMouseMove();
+}
+
+std::shared_ptr<IShowActivatable> WindowHandler::topInt()
+{
+	if(listInt.empty())
+		return std::shared_ptr<IShowActivatable>();
+	else
+		return listInt.front();
+}
+
+void WindowHandler::totalRedraw()
+{
+	CSDL_Ext::fillSurface(screen2, Colors::BLACK);
+
+	for(auto & elem : objsToBlit)
+		elem->showAll(screen2);
+	CSDL_Ext::blitAt(screen2, 0, 0, screen);
+}
+
+void WindowHandler::simpleRedraw()
+{
+	//update only top interface and draw background
+	if(objsToBlit.size() > 1)
+		CSDL_Ext::blitAt(screen2, 0, 0, screen); //blit background
+	if(!objsToBlit.empty())
+		objsToBlit.back()->show(screen); //blit active interface/window
+}
+
+void WindowHandler::onScreenResize()
+{
+	for(const auto & entry : listInt)
+	{
+		auto intObject = std::dynamic_pointer_cast<CIntObject>(entry);
+
+		if(intObject)
+			intObject->onScreenResize();
+	}
+
+	totalRedraw();
+}
+
+void WindowHandler::onFrameRendered()
+{
+	disposed.clear();
+}