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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef ANDROID_TOUCHCONTROLS_H_
#define ANDROID_TOUCHCONTROLS_H_
#include "common/events.h"
namespace Graphics {
class ManagedSurface;
}
class TouchControlsDrawer {
public:
virtual void touchControlInitSurface(const Graphics::ManagedSurface &surf) = 0;
virtual void touchControlNotifyChanged() = 0;
virtual void touchControlDraw(uint8 alpha, int16 x, int16 y, int16 w, int16 h, const Common::Rect &clip) = 0;
protected:
~TouchControlsDrawer() {}
};
class TouchControls {
public:
// action type
enum Action {
JACTION_DOWN = 0,
JACTION_MOVE = 1,
JACTION_UP = 2,
JACTION_CANCEL = 3
};
TouchControls();
~TouchControls();
void init(float scale);
void setDrawer(TouchControlsDrawer *drawer, int width, int height);
void beforeDraw();
void draw();
void update(Action action, int ptr, int x, int y);
private:
TouchControlsDrawer *_drawer;
unsigned int _screen_width, _screen_height;
unsigned int _scale, _scale2;
Graphics::ManagedSurface *_svg;
unsigned int _zombieCount;
enum State {
kFunctionInactive = 0,
kFunctionActive = 1,
kFunctionZombie = 2
};
struct Function {
virtual bool isInside(int, int) = 0;
virtual void touch(int, int, Action) = 0;
virtual void draw(uint8 alpha) = 0;
virtual void resetState() {}
Function(const TouchControls *parent_) :
parent(parent_), pointerId(-1),
startX(-1), startY(-1),
currentX(-1), currentY(-1),
lastActivable(0), status(kFunctionInactive) {}
virtual ~Function() {}
void reset() {
pointerId = -1;
startX = startY = currentX = currentY = -1;
lastActivable = 0;
status = kFunctionInactive;
resetState();
}
const TouchControls *parent;
int pointerId;
uint16 startX, startY;
uint16 currentX, currentY;
uint32 lastActivable;
State status;
};
Function *getFunctionFromPointerId(int ptr);
Function *getZombieFunctionFromPos(int x, int y);
enum FunctionId {
kFunctionNone = -1,
kFunctionLeft = 0,
kFunctionRight = 1,
kFunctionCenter = 2,
kFunctionCount = 3
};
FunctionId getFunctionId(int x, int y);
Function *_functions[kFunctionCount];
static void buttonDown(Common::JoystickButton jb);
static void buttonUp(Common::JoystickButton jb);
static void buttonPress(Common::JoystickButton jb);
/**
* Draws a part of the joystick surface on the screen
*
* @param x The left coordinate in fixed-point screen pixels
* @param y The top coordinate in fixed-point screen pixels
* @param offX The left offset in SVG pixels
* @param offY The top offset in SVG pixels
* @param clip The clipping rectangle in source surface in SVG pixels
*/
void drawSurface(uint8 alpha, int x, int y, int offX, int offY, const Common::Rect &clip) const;
// Functions implementations
struct FunctionLeft : Function {
FunctionLeft(const TouchControls *parent) :
Function(parent), mask(0) {}
void resetState() override { mask = 0; }
bool isInside(int, int) override;
void touch(int, int, Action) override;
void draw(uint8 alpha) override;
uint32 mask;
void maskToLeftButtons(uint32 oldMask, uint32 newMask);
};
struct FunctionRight : Function {
FunctionRight(const TouchControls *parent) :
Function(parent), button(0) {}
void resetState() override { button = 0; }
bool isInside(int, int) override;
void touch(int, int, Action) override;
void draw(uint8 alpha) override;
uint32 button;
};
struct FunctionCenter : Function {
FunctionCenter(const TouchControls *parent) :
Function(parent), button(0) {}
void resetState() override { button = 0; }
bool isInside(int, int) override;
void touch(int, int, Action) override;
void draw(uint8 alpha) override;
uint32 button;
};
};
#endif
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