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Diffstat (limited to 'khotkeys/shared/gestures.h')
| -rw-r--r-- | khotkeys/shared/gestures.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/khotkeys/shared/gestures.h b/khotkeys/shared/gestures.h new file mode 100644 index 000000000..4c210528a --- /dev/null +++ b/khotkeys/shared/gestures.h @@ -0,0 +1,122 @@ +/**************************************************************************** + + KHotKeys + + Copyright (C) 1999-2002 Lubos Lunak <l.lunak@kde.org> + + Distributed under the terms of the GNU General Public License version 2. + +****************************************************************************/ + +#ifndef _GESTURES_H_ +#define _GESTURES_H_ + +#include <qwidget.h> +#include <qtimer.h> + +#include <X11/Xlib.h> +#include <fixx11h.h> + +#include "windows.h" + +namespace KHotKeys +{ + +class Gesture; +KDE_EXPORT extern Gesture* gesture_handler; + +class KDE_EXPORT Stroke + { + public: + // maximum number of numbers in stroke + enum { MAX_SEQUENCE = 25 }; + // largest number of points allowed to be sampled + enum { MAX_POINTS = 5000 }; + // default percentage of sample points in a bin from all points to be valid + enum { MIN_BIN_POINTS_PERCENTAGE = 5 }; + // default threshold of size of smaller axis needed for it to define its own bin size + enum { SCALE_RATIO = 4 }; + // default number of sample points required to have a valid stroke + enum { MIN_POINTS = 10 }; + Stroke(); + ~Stroke(); + bool record( int x, int y ); + char* translate( int min_bin_points_percentage_P = MIN_BIN_POINTS_PERCENTAGE, + int scale_ratio_P = SCALE_RATIO, int min_points_P = MIN_POINTS ); // CHECKME returns ret_val ( see below ) + void reset(); + protected: + int bin( int x, int y ); + // metrics for input stroke + int min_x, min_y; + int max_x, max_y; + int point_count; + int delta_x, delta_y; + int bound_x_1, bound_x_2; + int bound_y_1, bound_y_2; + struct point + { + int x; + int y; + }; + point* points; + char ret_val[ MAX_SEQUENCE ]; + }; + +class KDE_EXPORT Gesture + : public QWidget // not QObject because of x11EventFilter() + { + Q_OBJECT + public: + Gesture( bool enabled_P, QObject* parent_P ); + virtual ~Gesture(); + void enable( bool enable_P ); + void set_mouse_button( unsigned int button_P ); + void set_timeout( int time_P ); + void set_exclude( Windowdef_list* windows_P ); + void register_handler( QObject* receiver_P, const char* slot_P ); + void unregister_handler( QObject* receiver_P, const char* slot_P ); + protected: + virtual bool x11Event( XEvent* ev_P ); + private slots: + void stroke_timeout(); + void active_window_changed( WId window_P ); + signals: + void handle_gesture( const QString &gesture, WId window ); + private: + void update_grab(); + void grab_mouse( bool grab_P ); + void mouse_replay( bool release_P ); + bool _enabled; + Stroke stroke; + int start_x, start_y; + QTimer nostroke_timer; + bool recording; + unsigned int button; + int timeout; + WId gesture_window; + Windowdef_list* exclude; + QMap< QObject*, bool > handlers; // bool is just a dummy + }; + +// Gesture class must be QWidget derived because of x11Event() +// but it should be QObject owned -> use a QObject proxy that will delete it +class DeleteObject + : public QObject + { + Q_OBJECT + public: + DeleteObject( QWidget* widget_P, QObject* parent_P ) + : QObject( parent_P ), widget( widget_P ) {} + virtual ~DeleteObject() { delete widget; } + private: + QWidget* widget; + }; + + +//*************************************************************************** +// Inline +//*************************************************************************** + +} // namespace KHotKeys + +#endif |