mirror of
https://github.com/libretro/scummvm.git
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157 lines
3.7 KiB
C++
157 lines
3.7 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef COMMON_VIRTUAL_KEYBOARD_GUI_H
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#define COMMON_VIRTUAL_KEYBOARD_GUI_H
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#include "common/scummsys.h"
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#ifdef ENABLE_VKEYBD
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#include "backends/vkeybd/virtual-keyboard.h"
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#include "common/rect.h"
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#include "common/system.h"
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#include "graphics/font.h"
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#include "graphics/surface.h"
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namespace Common {
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/**
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* Class to handle the drawing of the virtual keyboard to the overlay, and the
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* execution of the keyboard's main loop.
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* This includes the blitting of the appropriate bitmap in the correct location,
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* as well as the drawing of the virtual keyboard display.
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*/
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class VirtualKeyboardGUI {
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public:
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VirtualKeyboardGUI(VirtualKeyboard *kbd);
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~VirtualKeyboardGUI();
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/**
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* Updates the GUI when the Mode of the keyboard is changes
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*/
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void initMode(VirtualKeyboard::Mode *mode);
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/**
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* Starts the drawing of the keyboard, and runs the main event loop.
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*/
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void run();
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/**
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* Interrupts the event loop and resets the overlay to its initial state.
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*/
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void close();
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bool isDisplaying() { return _displaying; }
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/**
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* Reset the class to an initial state
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*/
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void reset();
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/**
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* Activates drag mode. Takes the keyboard-relative coordinates of the
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* cursor as an argument.
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*/
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void startDrag(int16 x, int16 y);
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/**
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* Deactivates drag mode
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* */
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void endDrag();
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/**
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* Checks for a screen change in the backend and re-inits the virtual
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* keyboard if it has.
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*/
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void checkScreenChanged();
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/**
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* Sets the GUI's internal screen size variables
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*/
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void initSize(int16 w, int16 h);
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private:
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OSystem *_system;
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VirtualKeyboard *_kbd;
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Rect _kbdBound;
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Graphics::Surface *_kbdSurface;
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uint32 _kbdTransparentColor;
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Point _dragPoint;
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bool _drag;
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static const int SNAP_WIDTH = 10;
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Graphics::Surface _overlayBackup;
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Rect _dirtyRect;
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bool _displayEnabled;
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Graphics::Surface _dispSurface;
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const Graphics::Font *_dispFont;
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int16 _dispX, _dispY;
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uint _dispI;
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uint32 _dispForeColor, _dispBackColor;
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int _lastScreenChanged;
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int16 _screenW, _screenH;
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bool _displaying;
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bool _firstRun;
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void setupDisplayArea(Rect &r, uint32 forecolor);
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void move(int16 x, int16 y);
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void moveToDefaultPosition();
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void screenChanged();
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void mainLoop();
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void extendDirtyRect(const Rect &r);
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void resetDirtyRect();
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void redraw();
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void forceRedraw();
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void updateDisplay();
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bool fontIsSuitable(const Graphics::Font *font, const Rect &rect);
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uint calculateEndIndex(const String &str, uint startIndex);
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bool _drawCaret;
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int16 _caretX;
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static const int kCaretBlinkTime = 500;
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void animateCaret();
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static const int kCursorAnimateDelay = 250;
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int _cursorAnimateCounter;
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int _cursorAnimateTimer;
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byte _cursor[2048];
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void setupCursor();
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void removeCursor();
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void animateCursor();
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};
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} // End of namespace Common
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#endif // #ifdef ENABLE_VKEYBD
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#endif // #ifndef COMMON_VIRTUAL_KEYBOARD_GUI_H
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