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https://github.com/libretro/scummvm.git
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115 lines
3.2 KiB
C++
115 lines
3.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef GUI_OBJECT_H
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#define GUI_OBJECT_H
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#include "common/scummsys.h"
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#include "common/str.h"
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#include "common/rect.h"
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namespace GUI {
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class CommandSender;
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class CommandReceiver {
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friend class CommandSender;
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protected:
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virtual ~CommandReceiver() {}
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virtual void handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {}
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};
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class CommandSender {
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// TODO - allow for multiple targets, i.e. store targets in a list
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// and add methods addTarget/removeTarget.
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protected:
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CommandReceiver *_target;
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public:
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CommandSender(CommandReceiver *target) : _target(target) {}
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virtual ~CommandSender() {}
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void setTarget(CommandReceiver *target) { _target = target; }
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CommandReceiver *getTarget() const { return _target; }
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virtual void sendCommand(uint32 cmd, uint32 data) {
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if (_target && cmd)
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_target->handleCommand(this, cmd, data);
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}
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};
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class Widget;
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class GuiObject : public CommandReceiver {
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friend class Widget;
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protected:
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Common::Rect _textDrawableArea;
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int16 _x, _y;
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uint16 _w, _h;
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bool _useRTL;
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const Common::String _name;
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Widget *_firstWidget;
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public:
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GuiObject(int x, int y, int w, int h, bool scale = false);
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GuiObject(const Common::String &name);
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~GuiObject() override;
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virtual void setTextDrawableArea(const Common::Rect &r) { _textDrawableArea = r; }
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virtual void resize(int x, int y, int w, int h, bool scale = true);
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virtual Widget *addChild(Widget *newChild);
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virtual int16 getRelX() const { return _x; }
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virtual int16 getRelY() const { return _y; }
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virtual int16 getAbsX() const { return _x; }
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virtual int16 getAbsY() const { return _y; }
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virtual int16 getChildX() const { return getAbsX(); }
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virtual int16 getChildY() const { return getAbsY(); }
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virtual uint16 getWidth() const { return _w; }
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virtual uint16 getHeight() const { return _h; }
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virtual bool isVisible() const = 0;
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virtual void reflowLayout();
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virtual void removeWidget(Widget *widget);
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virtual bool isPointIn(int x, int y) {
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return (x >= _x && x < (_x + _w) && (y >= _y) && (y < _y + _h));
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}
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/**
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* Returns the clipping rect to be used when drawing the children widgets of this object
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*/
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virtual Common::Rect getClipRect() const;
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virtual void handleMouseWheel(int x, int y, int direction) {};
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virtual void handleTooltipUpdate(int x, int y) {};
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protected:
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virtual void releaseFocus() = 0;
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};
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} // End of namespace GUI
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#endif
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