diff options
Diffstat (limited to 'libs/gtkmm2ext/fader.cc')
| -rw-r--r-- | libs/gtkmm2ext/fader.cc | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/libs/gtkmm2ext/fader.cc b/libs/gtkmm2ext/fader.cc index a899e5906a..9a2f5a2cd9 100644 --- a/libs/gtkmm2ext/fader.cc +++ b/libs/gtkmm2ext/fader.cc @@ -162,7 +162,7 @@ Fader::get_image_scales (double &x_scale, double &y_scale) int pbheight = _face_pixbuf->get_height (); int width = get_width (); int height = get_height (); - + if ((width != pbwidth) || (height != pbheight)) { x_scale = double (width) / double (pbwidth); if (x_scale == 0.0) { @@ -186,17 +186,17 @@ Fader::set_touch_cursor (const Glib::RefPtr<Gdk::Pixbuf>& touch_cursor) void Fader::render (cairo_t* cr, cairo_rectangle_t*) { - + double xscale = 1.0; double yscale = 1.0; - + get_image_scales (xscale, yscale); - + cairo_matrix_t matrix; cairo_get_matrix (cr, &matrix); cairo_matrix_scale (&matrix, xscale, yscale); cairo_set_matrix (cr, &matrix); - + get_handle_position (_last_drawn_x, _last_drawn_y); if (_underlay_pixbuf != 0) { @@ -264,9 +264,9 @@ Fader::on_button_press_event (GdkEventButton* ev) double xscale = 1.0; double yscale = 1.0; - + get_image_scales (xscale, yscale); - + double hw = _handle_pixbuf->get_width() * xscale; double hh = _handle_pixbuf->get_height() * yscale; @@ -276,16 +276,16 @@ Fader::on_button_press_event (GdkEventButton* ev) double ev_pos_x; double ev_pos_y; - + get_closest_point_on_line(_min_pos_x, _min_pos_y, _max_pos_x, _max_pos_y, ev->x, ev->y, ev_pos_x, ev_pos_y ); add_modal_grab (); - + _grab_window = ev->window; _dragging = true; - + gdk_pointer_grab(ev->window,false, GdkEventMask (Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK), NULL, @@ -293,7 +293,7 @@ Fader::on_button_press_event (GdkEventButton* ev) ev->time); queue_draw(); - + return true; } @@ -368,7 +368,7 @@ Fader::on_motion_notify_event (GdkEventMotion* ev) if (_dragging) { double ev_pos_x; double ev_pos_y; - + if (ev->window != _grab_window) { _grab_window = ev->window; return true; @@ -378,12 +378,12 @@ Fader::on_motion_notify_event (GdkEventMotion* ev) _max_pos_x, _max_pos_y, _grab_start_handle_x + (ev->x - _grab_start_mouse_x), _grab_start_handle_y + (ev->y - _grab_start_mouse_y), ev_pos_x, ev_pos_y ); - + double const fract = sqrt((ev_pos_x - _min_pos_x) * (ev_pos_x - _min_pos_x) + (ev_pos_y - _min_pos_y) * (ev_pos_y - _min_pos_y)) / sqrt((double)((_max_pos_x - _min_pos_x) * (_max_pos_x - _min_pos_x) + (_max_pos_y - _min_pos_y) * (_max_pos_y - _min_pos_y))); - + adjustment.set_value (adjustment.get_lower() + (adjustment.get_upper() - adjustment.get_lower()) * fract); } return true; |