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vcmi/client/gui/EventDispatcher.h

69 lines
2.3 KiB
C++

/*
* EventDispatcher.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
class Point;
VCMI_LIB_NAMESPACE_END
class AEventsReceiver;
enum class MouseButton;
enum class EShortcut;
/// Class that receives events from event producers and dispatches it to UI elements that are interested in this event
class EventDispatcher
{
using CIntObjectList = std::list<AEventsReceiver *>;
/// list of UI elements that are interested in particular event
CIntObjectList lclickable;
CIntObjectList rclickable;
CIntObjectList mclickable;
CIntObjectList hoverable;
CIntObjectList keyinterested;
CIntObjectList motioninterested;
CIntObjectList timeinterested;
CIntObjectList wheelInterested;
CIntObjectList doubleClickInterested;
CIntObjectList textInterested;
CIntObjectList & getListForMouseButton(MouseButton button);
void handleMouseButtonClick(CIntObjectList & interestedObjs, MouseButton btn, bool isPressed);
void processList(const ui16 mask, const ui16 flag, CIntObjectList * lst, std::function<void(CIntObjectList *)> cb);
void processLists(ui16 activityFlag, std::function<void(CIntObjectList *)> cb);
public:
/// add specified UI element as interested. Uses unnamed enum from AEventsReceiver for activity flags
void handleElementActivate(AEventsReceiver * elem, ui16 activityFlag);
/// removes specified UI element as interested for specified activities
void handleElementDeActivate(AEventsReceiver * elem, ui16 activityFlag);
/// Regular timer event
void dispatchTimer(uint32_t msPassed);
/// Shortcut events (e.g. keyboard keys)
void dispatchShortcutPressed(const std::vector<EShortcut> & shortcuts);
void dispatchShortcutReleased(const std::vector<EShortcut> & shortcuts);
/// Mouse events
void dispatchMouseButtonPressed(const MouseButton & button, const Point & position);
void dispatchMouseButtonReleased(const MouseButton & button, const Point & position);
void dispatchMouseScrolled(const Point & distance, const Point & position);
void dispatchMouseDoubleClick(const Point & position);
void dispatchMouseMoved(const Point & position);
/// Text input events
void dispatchTextInput(const std::string & text);
void dispatchTextEditing(const std::string & text);
};