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101 lines
3.0 KiB
C++
101 lines
3.0 KiB
C++
/*
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* WindowHandler.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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class IShowActivatable;
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class WindowHandler
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{
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/// list of windows. front = bottom-most (background), back = top-most (foreground)
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/// (includes adventure map, window windows, all kind of active dialogs, and so on)
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std::vector<std::shared_ptr<IShowActivatable>> windowsStack;
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/// Temporary list of recently popped windows
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std::vector<std::shared_ptr<IShowActivatable>> disposed;
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/// returns top windows
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std::shared_ptr<IShowActivatable> topWindowImpl() const;
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public:
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/// forces total redraw (using showAll), sets a flag, method gets called at the end of the rendering
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void totalRedraw();
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/// update only top windows and draw background from buffer, sets a flag, method gets called at the end of the rendering
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void simpleRedraw();
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/// called whenever user selects different resolution, requiring to center/resize all windows
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void onScreenResize();
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/// deactivate old top windows, activates this one and pushes to the top
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void pushWindow(std::shared_ptr<IShowActivatable> newInt);
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/// creates window of class T and pushes it to the top
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template <typename T, typename ... Args>
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void createAndPushWindow(Args && ... args);
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/// pops one or more windows - deactivates top, deletes and removes given number of windows, activates new front
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void popWindows(int howMany);
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/// returns true if current top window is a right-click popup
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bool isTopWindowPopup() const;
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/// removes given windows from the top and activates next
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void popWindow(std::shared_ptr<IShowActivatable> top);
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/// returns true if selected interface is on top
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bool isTopWindow(std::shared_ptr<IShowActivatable> window) const;
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bool isTopWindow(IShowActivatable * window) const;
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/// returns top window if it matches requested class
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template <typename T>
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std::shared_ptr<T> topWindow() const;
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/// should be called after frame has been rendered to screen
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void onFrameRendered();
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/// returns current number of windows in the stack
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size_t count() const;
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/// erases all currently existing windows from the stack
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void clear();
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/// returns all existing windows of selected type
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template <typename T>
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std::vector<std::shared_ptr<T>> findWindows() const;
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};
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template <typename T, typename ... Args>
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void WindowHandler::createAndPushWindow(Args && ... args)
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{
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auto newWindow = std::make_shared<T>(std::forward<Args>(args)...);
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pushWindow(newWindow);
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}
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template <typename T>
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std::vector<std::shared_ptr<T>> WindowHandler::findWindows() const
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{
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std::vector<std::shared_ptr<T>> result;
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for(const auto & window : windowsStack)
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{
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std::shared_ptr<T> casted = std::dynamic_pointer_cast<T>(window);
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if (casted)
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result.push_back(casted);
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}
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return result;
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}
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template <typename T>
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std::shared_ptr<T> WindowHandler::topWindow() const
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{
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return std::dynamic_pointer_cast<T>(topWindowImpl());
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}
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