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#ifndef __WIDGETS_H__
#define __WIDGETS_H__
#include <string>
#include <list>
#include <set>
#include <SDL/SDL.h>
#include "font.h"
class Command
{
public:
virtual ~Command() { };
virtual void doAction() = 0;
};
class Area;
class Widget
{
protected:
Area *area;
public:
virtual ~Widget() { };
public:
virtual bool onMouseButtonDown(int button, int x, int y) { return false; };
virtual bool onMouseButtonUp(int button, int x, int y) { return false; };
virtual bool onMouseMove(int x, int y) { return false; };
virtual void draw() { };
virtual void setParent(Area *a) { area = a; };
virtual bool onKeyDown(SDLKey key, unsigned char ch) { return false; };
virtual bool destroyByArea() { return true; };
};
class Button: public Widget
{
protected:
int left, top, width, height;
SDL_Surface *image, *highlighted;
bool mouseInside;
Command *command;
public:
Button(int x, int y, const std::wstring &name, Command *cmd=NULL,
bool transparent=true);
Button(int x, int y, int width, int height, Font *font,
int fR, int fG, int fB, int hR, int hG, int hB,
const std::wstring &text, Command *cmd=NULL);
Button(int x, int y, int width, int height, Font *font,
int r, int g, int b, const std::wstring &background,
const std::wstring &text, Command *cmd=NULL);
Button(int x, int y, int width, int height, Font *font,
int r, int g, int b, const std::wstring &background,
const std::wstring &text, bool bevel, Command *cmd=NULL);
virtual ~Button();
public:
virtual void draw();
void getBounds(int &left, int &top, int &width, int &height);
int getLeft() const { return left; };
int getTop() const { return top; };
int getWidth() const { return width; };
int getHeight() const { return height; };
virtual bool onMouseButtonDown(int button, int x, int y);
virtual bool onMouseMove(int x, int y);
void moveTo(int x, int y) { left = x; top = y; };
};
class KeyAccel: public Widget
{
protected:
SDLKey key;
Command *command;
public:
KeyAccel(SDLKey key, Command *command);
virtual bool onKeyDown(SDLKey key, unsigned char ch);
};
class TimerHandler
{
public:
virtual ~TimerHandler() { };
virtual void onTimer() = 0;
};
class Area: public Widget
{
private:
typedef std::list<Widget*> WidgetsList;
WidgetsList widgets;
std::set<Widget*> notManagedWidgets;
bool terminate;
Uint32 time;
TimerHandler *timer;
public:
Area();
virtual ~Area();
public:
void add(Widget *widget, bool manage=true);
void remove(Widget *widget);
void handleEvent(const SDL_Event &event);
void run();
void finishEventLoop();
virtual void draw();
void setTimer(Uint32 interval, TimerHandler *handler);
void updateMouse();
virtual bool destroyByArea() { return false; };
};
class ExitCommand: public Command
{
private:
Area &area;
public:
ExitCommand(Area &a): area(a) { }
virtual void doAction() {
area.finishEventLoop();
};
};
class AnyKeyAccel: public Widget
{
protected:
Command *command;
public:
AnyKeyAccel(); // use exit command by default
AnyKeyAccel(Command *command);
virtual ~AnyKeyAccel();
public:
virtual bool onKeyDown(SDLKey key, unsigned char ch);
virtual bool onMouseButtonDown(int button, int x, int y);
};
class Window: public Widget
{
protected:
int left, top, width, height;
SDL_Surface *background;
public:
Window(int x, int y, int w, int h, const std::wstring &background,
bool frameWidth=4, bool raised=true);
virtual ~Window();
public:
virtual void draw();
};
class Label: public Widget
{
public:
typedef enum {
ALIGN_LEFT,
ALIGN_CENTER,
ALIGN_RIGHT
} HorAlign;
typedef enum {
ALIGN_TOP,
ALIGN_MIDDLE,
ALIGN_BOTTOM
} VerAlign;
protected:
Font *font;
std::wstring text;
int left, top, width, height;
int red, green, blue;
HorAlign hAlign;
VerAlign vAlign;
bool shadow;
public:
Label(Font *font, int x, int y, int r, int g, int b,
std::wstring text, bool shadow=true);
Label(Font *font, int x, int y, int width, int height,
HorAlign hAlign, VerAlign vAlign, int r, int g, int b,
const std::wstring &text);
public:
virtual void draw();
};
class InputField: public Window, public TimerHandler
{
private:
std::wstring &text;
int maxLength;
int cursorPos;
int red, green, blue;
Font *font;
Uint32 lastCursor;
bool cursorVisible;
char lastChar;
Uint32 lastKeyUpdate;
public:
InputField(int x, int y, int w, int h, const std::wstring &background,
std::wstring &name, int maxLength, int r, int g, int b, Font *font);
~InputField();
public:
virtual void draw();
virtual void setParent(Area *a);
virtual void onTimer();
virtual bool onKeyDown(SDLKey key, unsigned char ch);
virtual bool onKeyUp(SDLKey key);
virtual void onCharTyped(unsigned char ch);
private:
void moveCursor(int pos);
};
class Checkbox: public Widget
{
protected:
int left, top, width, height;
SDL_Surface *image, *highlighted;
SDL_Surface *checkedImage, *checkedHighlighted;
bool &checked;
bool mouseInside;
public:
Checkbox(int x, int y, int width, int height, Font *font,
int r, int g, int b, const std::wstring &background,
bool &checked);
virtual ~Checkbox();
public:
virtual void draw();
void getBounds(int &left, int &top, int &width, int &height);
int getLeft() const { return left; };
int getTop() const { return top; };
int getWidth() const { return width; };
int getHeight() const { return height; };
virtual bool onMouseButtonDown(int button, int x, int y);
virtual bool onMouseMove(int x, int y);
void moveTo(int x, int y) { left = x; top = y; };
};
class Picture: public Widget
{
protected:
int left;
int top;
int width;
int height;
SDL_Surface *image;
bool managed;
public:
Picture(int x, int y, const std::wstring &name, bool transparent=true);
Picture(int x, int y, SDL_Surface *image);
virtual ~Picture();
public:
virtual void draw();
void moveX(const int newX);
void getBounds(int &l, int &t, int &w, int &h);
int getLeft() const { return left; };
int getTop() const { return top; };
int getWidth() const { return width; };
int getHeight() const { return height; };
};
class Slider: public Widget
{
private:
int left, top, width, height;
float &value;
SDL_Surface *background;
SDL_Surface *slider;
SDL_Surface *activeSlider;
bool highlight;
bool dragging;
int dragOffsetX;
public:
Slider(int x, int y, int width, int height, float &value);
virtual ~Slider();
public:
virtual void draw();
virtual bool onMouseButtonDown(int button, int x, int y);
virtual bool onMouseButtonUp(int button, int x, int y);
virtual bool onMouseMove(int x, int y);
private:
void createBackground();
void createSlider(int size);
int valueToX(float value);
float xToValue(int pos);
};
#endif
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