kbattleship/src/button.h

   1 /*
   2   Copyright (c) 2007 Paolo Capriotti <p.capriotti@gmail.com>
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8 */
   9
  10 #ifndef BUTTON_H
  11 #define BUTTON_H
  12
  13 #include <QIcon>
  14 #include <QFont>
  15 #include <QSize>
  16 #include <QPointer>
  17 #include "welcomescreen.h"
  18 #include "animation.h"
  19
  20 class ButtonAnimation;
  21 class QWidget;
  22
  23 class EditorFactory
  24 {
  25 public:
  26     virtual ~EditorFactory()
  27     {
  28     }
  29
  30     virtual QWidget* createEditor(QWidget* parent) = 0;
  31 };
  32
  33
  34 class Button : public QObject, public KGameCanvasPixmap
  35 {
  36 Q_OBJECT
  37     enum {
  38         BRIGHTNESS_NORMAL = 0,
  39         BRIGHTNESS_HOVER = 120,
  40         BRIGHTNESS_DOWN = 180
  41     };
  42     QIcon m_icon;
  43     QFont m_font;
  44     QString m_text;
  45     QSize m_size;
  46     int m_text_width;
  47
  48     bool m_fixed_width;
  49     bool m_down;
  50     bool m_hover;
  51     double m_brightness;
  52     QPointer<ButtonAnimation> m_animation;
  53
  54     QWidget* m_editor;
  55
  56     QPoint textPos() const;
  57     void computeSize();
  58     void updateEditor();
  59 public:
  60     Button(WelcomeScreen* parent, const QIcon& icon,
  61            const QFont& font, const QString& text);
  62     virtual ~Button();
  63
  64     virtual void repaint();
  65
  66     QSize size() const;
  67     QWidget* editor() { return m_editor; }
  68
  69     void onMousePress(const QPoint& p);
  70     void onMouseRelease(const QPoint& p);
  71     void onMouseMove(const QPoint& p);
  72     void onMouseLeave();
  73     bool onClicked();
  74
  75     void setText(const QString& text);
  76     void setBrightness(double value);
  77     double brightness() const;
  78
  79     KGameCanvasPixmap* extractIcon();
  80     void setEditor(EditorFactory& factory);
  81     void removeEditor();
  82     void setWidth(int width);
  83 signals:
  84     void clicked();
  85     void needsUpdate();
  86 };
  87
  88 class ButtonAnimation : public Animation
  89 {
  90 Q_OBJECT
  91 public:
  92     Button* m_button;
  93     int m_brightness;
  94     static double m_speed;
  95     double m_current;
  96     int m_last;
  97 public:
  98     ButtonAnimation(Button* button, int brightness);
  99     ~ButtonAnimation();
 100     virtual void start(int t);
 101     virtual bool step(int t);
 102     virtual void abort();
 103
 104     void setBrightness(int value);
 105 };
 106
 107 #endif // BUTTON_H