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/***************************************************************************
* ktouchkeys.h *
* ------------ *
* Copyright (C) 2000 by Håvard Frøiland, 2003 by Andreas Nicolai *
* ghorwin@users.sourceforge.net *
* *
* 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 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#ifndef KTOUCHKEYS_H
#define KTOUCHKEYS_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <qpainter.h>
class KTouchFingerKey;
class KTouchNormalKey;
class KTouchControlKey;
/** This is the base class for all keys (KTouchFingerKey, KTouchNormalKey and KTouchControlKey).
* Do not create instances of KTouchKey itself or you will get only blank keys. Note that the
* KTouchKey class hierarchy contains only the information for painting the keys. The connectivity
* is handled using the KTouchKeyConnector.
*/
class KTouchBaseKey {
public:
/// The possible types of the keys
enum KeyType { FINGER_KEY, NORMAL_KEY, CONTROL_KEY };
/// Constructor
KTouchBaseKey(const QChar& keyChar, const QString& keyText, int x, int y, int w, int h)
: m_keyChar(keyChar), m_keyText(keyText), m_isActive(false), m_isNextKey(false),
m_x(x), m_y(y), m_w(w), m_h(h), m_type(NORMAL_KEY) {}
/// Destructor.
virtual ~KTouchBaseKey() {}
/// Paints the basic key shape using the painter p.
virtual void paint(QPainter& p) const;
/// Recalculates the scaled position and size properties of the key.
void resize(double scale);
/// Returns the boundary frame of the key.
QRect frame() const { return QRect(m_x, m_y, m_w, m_h); }
/// Returns the key type.
KeyType type() const { return m_type; }
QChar m_keyChar; ///< The character that needs to be pressed to access this char.
QString m_keyText; ///< The text on the key (may be a single char only).
bool m_isActive; ///< Indicates whether the key is active (finger and control keys).
bool m_isNextKey; ///< Indicates whether this is the next to be pressed key (normal and finger keys).
QFont m_font;
float m_font_scale;
protected:
int m_x; ///< The x position of the key.
int m_y; ///< The y position of the key.
int m_w; ///< The width of the key.
int m_h; ///< The height of the key.
int m_xS; ///< The scaled x position of the key.
int m_yS; ///< The scaled y position of the key.
int m_wS; ///< The scaled width of the key.
int m_hS; ///< The scaled height of the key.
KeyType m_type; ///< Stores the type of the key (convenience for saving of the keyboard layout).
};
// ---------------------------------------------------------------------------------------
/** This is a normal keyboard key with text.
* The background colour of the key will be taken from the current colour scheme using the
* colour index (this should be the same colour as used for the corresponding finger key).
*/
class KTouchNormalKey : public KTouchBaseKey {
public:
/// Constructor
KTouchNormalKey(const QChar& keyChar, const QString& keyText, int x, int y, int w, int h);
/// Destructor
virtual ~KTouchNormalKey() {}
/// Extends the painting routine of KTouchKey (adds the text).
void paint(QPainter& p) const;
/// Indicates the colour index in the colour scheme, that has to be used for this key
/// and will be set in KTouchKeyboard::updateColors().
unsigned int m_colorIndex;
};
// ------------------------------------------------------------------------------------
/** This is a key where a finger rests while not typing.
* The name is taken from the fact, that there is normally for each finger (not including the
* thumbs) a key on a keyboard where the finger rests while it is not "used". A finger key
* is basically a normal key with additional stuff in the painting routine to mark it as a
* finger key.
*/
class KTouchFingerKey : public KTouchNormalKey {
public:
/// Constructor
KTouchFingerKey(const QChar& keyChar, const QString& keyText, int x, int y, int w, int h);
/// Destructor
~KTouchFingerKey() { --m_fingerKeyCount; }
/// Extends the painting algoritm of KTouchNormalKey when marked.
void paint(QPainter& p) const;
private:
static int m_fingerKeyCount; ///< Contains the number of created finger keys (for colour generation).
};
// ------------------------------------------------------------------------------------
/** This is a special or control key.
* This key acts as a modifier key to a normal key (for instance a shift key) and has a
* different shape and painting routine then the normal keys. Therefore it is directly
* derived from KTouchKey.
*/
class KTouchControlKey : public KTouchBaseKey {
public:
/// Constructor
KTouchControlKey(const QChar& keyChar, const QString& keyText, int x, int y, int w, int h);
/// Extends the parents paint routine (draws the text or other fancy stuff).
void paint(QPainter& p) const;
};
// ------------------------------------------------------------------------------------
/// This is the key connector which represents a key or key combination that can be pressed.
/// It associates a character with a target key and optionally a finger and/or control key.
class KTouchKeyConnection {
public:
/// Default constructor
KTouchKeyConnection() : m_keyChar(0), m_targetKeyChar(0), m_fingerKeyChar(0), m_controlKeyChar(0) {}
/// Constructor provided for convenience.
KTouchKeyConnection(const QChar& keyChar, const QChar& targetKeyChar, const QChar& fingerKeyChar,
const QChar& controlKeyChar)
: m_keyChar(keyChar), m_targetKeyChar(targetKeyChar), m_fingerKeyChar(fingerKeyChar), m_controlKeyChar(controlKeyChar) {}
/// This is the character that has to be pressed to access this key.
QChar m_keyChar;
QChar m_targetKeyChar; ///< The target character (the key the user has to press).
QChar m_fingerKeyChar; ///< The finger key (where the used finger normally rests).
QChar m_controlKeyChar; ///< The modifier key the user has to press also (for example LeftShift).
};
#endif // KTOUCHKEYS_H
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