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vcmi/client/gui/CGuiHandler.h

129 lines
4.0 KiB
C++

/*
* CGuiHandler.h, 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
*
*/
#pragma once
VCMI_LIB_NAMESPACE_BEGIN
template <typename T> struct CondSh;
class Point;
class Rect;
VCMI_LIB_NAMESPACE_END
enum class MouseButton;
class ShortcutHandler;
class FramerateManager;
class IStatusBar;
class CIntObject;
class IUpdateable;
class IShowActivatable;
class IRenderHandler;
class IScreenHandler;
class WindowHandler;
class EventDispatcher;
class InputHandler;
// Handles GUI logic and drawing
class CGuiHandler
{
private:
/// Fake no-op version status bar, for use in windows that have no status bar
std::shared_ptr<IStatusBar> fakeStatusBar;
/// Status bar of current window, if any. Uses weak_ptr to allow potential hanging reference after owned window has been deleted
std::weak_ptr<IStatusBar> currentStatusBar;
std::unique_ptr<ShortcutHandler> shortcutsHandlerInstance;
std::unique_ptr<WindowHandler> windowHandlerInstance;
std::unique_ptr<IScreenHandler> screenHandlerInstance;
std::unique_ptr<IRenderHandler> renderHandlerInstance;
std::unique_ptr<FramerateManager> framerateManagerInstance;
std::unique_ptr<EventDispatcher> eventDispatcherInstance;
std::unique_ptr<InputHandler> inputHandlerInstance;
public:
/// returns current position of mouse cursor, relative to vcmi window
const Point & getCursorPosition() const;
ShortcutHandler & shortcuts();
FramerateManager & framerate();
EventDispatcher & events();
InputHandler & input();
/// Returns current logical screen dimensions
/// May not match size of window if user has UI scaling different from 100%
Point screenDimensions() const;
/// returns true if chosen keyboard key is currently pressed down
bool isKeyboardAltDown() const;
bool isKeyboardCtrlDown() const;
bool isKeyboardShiftDown() const;
void startTextInput(const Rect & where);
void stopTextInput();
IScreenHandler & screenHandler();
IRenderHandler & renderHandler();
WindowHandler & windows();
/// Returns currently active status bar. Guaranteed to be non-null
std::shared_ptr<IStatusBar> statusbar();
/// Set currently active status bar
void setStatusbar(std::shared_ptr<IStatusBar>);
IUpdateable *curInt;
ui8 defActionsDef; //default auto actions
bool captureChildren; //all newly created objects will get their parents from stack and will be added to parents children list
std::list<CIntObject *> createdObj; //stack of objs being created
CGuiHandler();
~CGuiHandler();
void init();
void renderFrame();
/// called whenever user selects different resolution, requiring to center/resize all windows
void onScreenResize();
void handleEvents(); //takes events from queue and calls interested objects
void fakeMouseMove();
void drawFPSCounter(); // draws the FPS to the upper left corner of the screen
bool amIGuiThread();
/// Calls provided functor in main thread on next execution frame
void dispatchMainThread(const std::function<void()> & functor);
};
extern CGuiHandler GH; //global gui handler
struct SObjectConstruction
{
CIntObject *myObj;
SObjectConstruction(CIntObject *obj);
~SObjectConstruction();
};
struct SSetCaptureState
{
bool previousCapture;
ui8 prevActions;
SSetCaptureState(bool allow, ui8 actions);
~SSetCaptureState();
};
#define OBJ_CONSTRUCTION SObjectConstruction obj__i(this)
#define OBJ_CONSTRUCTION_TARGETED(obj) SObjectConstruction obj__i(obj)
#define OBJECT_CONSTRUCTION_CAPTURING(actions) defActions = actions; SSetCaptureState obj__i1(true, actions); SObjectConstruction obj__i(this)
#define OBJECT_CONSTRUCTION_CUSTOM_CAPTURING(actions) SSetCaptureState obj__i1(true, actions); SObjectConstruction obj__i(this)
#define OBJ_CONSTRUCTION_CAPTURING_ALL_NO_DISPOSE defActions = 255 - DISPOSE; SSetCaptureState obj__i1(true, 255 - DISPOSE); SObjectConstruction obj__i(this)