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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"
class TouchControlsDrawer {
public:
virtual void touchControlNotifyChanged() = 0;
virtual void touchControlDraw(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();
void init(TouchControlsDrawer *drawer, int width, int height);
void draw();
void update(Action action, int ptr, int x, int y);
private:
TouchControlsDrawer *_drawer;
int _screen_width, _screen_height;
enum Function {
kFunctionNone = -1,
kFunctionJoystick = 0,
kFunctionCenter = 1,
kFunctionRight = 2,
kFunctionMax = 2
};
Function getFunction(int x, int y);
struct Pointer {
Pointer() : id(-1), startX(-1), startY(-1),
currentX(-1), currentY(-1),
function(kFunctionNone), active(false) {}
void reset() {
id = -1;
startX = startY = currentX = currentY = -1;
function = kFunctionNone;
active = false;
}
int id;
uint16 startX, startY;
uint16 currentX, currentY;
Function function;
bool active;
};
enum { kNumPointers = 5 };
Pointer _pointers[kNumPointers];
Pointer *getPointerFromId(int ptr, bool createNotFound);
Pointer *findPointerFromFunction(Function function);
struct FunctionState {
FunctionState() : main(Common::JOYSTICK_BUTTON_INVALID),
modifier(Common::JOYSTICK_BUTTON_INVALID) {}
void reset() {
main = Common::JOYSTICK_BUTTON_INVALID;
modifier = Common::JOYSTICK_BUTTON_INVALID;
clip = Common::Rect();
}
Common::JoystickButton main;
Common::JoystickButton modifier;
Common::Rect clip;
};
FunctionState _functionStates[kFunctionMax + 1];
void buttonDown(Common::JoystickButton jb);
void buttonUp(Common::JoystickButton jb);
void buttonPress(Common::JoystickButton jb);
/* Functions implementations */
struct FunctionBehavior {
void (*touchToState)(int, int, TouchControls::FunctionState &);
bool pressOnRelease;
float xRatio;
float yRatio;
};
static FunctionBehavior functionBehaviors[TouchControls::kFunctionMax + 1];
static void touchToJoystickState(int dX, int dY, FunctionState &state);
static void touchToCenterState(int dX, int dY, FunctionState &state);
static void touchToRightState(int dX, int dY, FunctionState &state);
};
#endif
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