/*
- Copyright (C) 2014 Waves Audio Ltd.
+ Copyright (C) 2014 Waves Audio Ltd.
- 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.
+ 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.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: fastmeter.h 570 2006-06-07 21:21:21Z sampo $
+ $Id: fastmeter.h 570 2006-06-07 21:21:21Z sampo $
*/
static void get_closest_point_on_line(double xa, double ya, double xb, double yb, double xp, double yp, double& xl, double& yl )
{
// Storing vector A->B
- double a_to_b_x = xb - xa;
+ double a_to_b_x = xb - xa;
double a_to_b_y = yb - ya;
-
+
// Storing vector A->P
- double a_to_p_x = xp - xa;
+ double a_to_p_x = xp - xa;
double a_to_p_y = yp - ya;
-
-
- // Basically finding the squared magnitude
- // of a_to_b
- double atb2 = a_to_b_x * a_to_b_x + a_to_b_y * a_to_b_y;
-
- // The dot product of a_to_p and a_to_b
- double atp_dot_atb = a_to_p_x * a_to_b_x + a_to_p_y * a_to_b_y;
-
- // The normalized "distance" from a to
- // your closest point
- double t = atp_dot_atb / atb2;
-
- // The vector perpendicular to a_to_b;
- // This step can also be combined with the next
- double perpendicular_x = -a_to_b_y;
- double perpendicular_y = a_to_b_x;
-
- // Finding Q, the point "in the right direction"
- // If you want a mess, you can also combine this
- // with the next step.
- double xq = xp + perpendicular_x;
- double yq = yp + perpendicular_y;
-
- // Add the distance to A, moving
- // towards B
- double x = xa + a_to_b_x * t;
- double y = ya + a_to_b_y * t;
+
+
+ // Basically finding the squared magnitude
+ // of a_to_b
+ double atb2 = a_to_b_x * a_to_b_x + a_to_b_y * a_to_b_y;
+
+ // The dot product of a_to_p and a_to_b
+ double atp_dot_atb = a_to_p_x * a_to_b_x + a_to_p_y * a_to_b_y;
+
+ // The normalized "distance" from a to
+ // your closest point
+ double t = atp_dot_atb / atb2;
+
+ // Add the distance to A, moving
+ // towards B
+ double x = xa + a_to_b_x * t;
+ double y = ya + a_to_b_y * t;
if ((xa != xb)) {
if ((x < xa) && (x < xb)) {
}
Fader::Fader (Gtk::Adjustment& adj,
- const Glib::RefPtr<Gdk::Pixbuf>& face_pixbuf,
- const Glib::RefPtr<Gdk::Pixbuf>& active_face_pixbuf,
- const Glib::RefPtr<Gdk::Pixbuf>& underlay_pixbuf,
- const Glib::RefPtr<Gdk::Pixbuf>& handle_pixbuf,
- const Glib::RefPtr<Gdk::Pixbuf>& active_handle_pixbuf,
- int min_pos_x,
- int min_pos_y,
- int max_pos_x,
- int max_pos_y,
- bool read_only)
+ const Glib::RefPtr<Gdk::Pixbuf>& face_pixbuf,
+ const Glib::RefPtr<Gdk::Pixbuf>& active_face_pixbuf,
+ const Glib::RefPtr<Gdk::Pixbuf>& underlay_pixbuf,
+ const Glib::RefPtr<Gdk::Pixbuf>& handle_pixbuf,
+ const Glib::RefPtr<Gdk::Pixbuf>& active_handle_pixbuf,
+ int min_pos_x,
+ int min_pos_y,
+ int max_pos_x,
+ int max_pos_y,
+ bool read_only)
: adjustment (adj)
, _face_pixbuf (face_pixbuf)
, _active_face_pixbuf (active_face_pixbuf)
, _min_pos_y (min_pos_y)
, _max_pos_x (max_pos_x)
, _max_pos_y (max_pos_y)
- , _default_value (adjustment.get_value())
- , _dragging (false)
- , _read_only (read_only)
, _grab_window (0)
, _touch_cursor (0)
+ , _dragging (false)
+ , _default_value (adjustment.get_value())
+ , _read_only (read_only)
{
update_unity_position ();
adjustment.signal_value_changed().connect (mem_fun (*this, &Fader::adjustment_changed));
adjustment.signal_changed().connect (mem_fun (*this, &Fader::adjustment_changed));
- CairoWidget::set_size_request(_face_pixbuf->get_width(), _face_pixbuf->get_height());
+ CairoWidget::set_size_request(_face_pixbuf->get_width(), _face_pixbuf->get_height());
}
Fader::~Fader ()
}
}
+void
+Fader::get_image_scales (double &x_scale, double &y_scale)
+{
+ int pbwidth = _face_pixbuf->get_width ();
+ 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) {
+ x_scale = 1.0;
+ }
+ y_scale = double (height) / double (pbheight);
+ if (y_scale == 0.0) {
+ y_scale = 1.0;
+ }
+ } else {
+ x_scale = y_scale = 1.0;
+ }
+}
+
void
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) {
- cairo_rectangle (cr, 0, 0, get_width(), get_height());
gdk_cairo_set_source_pixbuf (cr,
- _underlay_pixbuf->gobj(),
- _last_drawn_x - (int)(_underlay_pixbuf->get_width()/2.0 + 0.5),
- _last_drawn_y - (int)(_underlay_pixbuf->get_height()/2.0 + 0.5));
- cairo_fill (cr);
+ _underlay_pixbuf->gobj(),
+ (_last_drawn_x - (int)((_underlay_pixbuf->get_width() * xscale) / 2.0 + 0.5)) / xscale,
+ (_last_drawn_y - (int)((_underlay_pixbuf->get_height() * yscale) / 2.0 + 0.5)) / yscale);
+ cairo_paint (cr);
}
- cairo_rectangle (cr, 0, 0, get_width(), get_height());
- gdk_cairo_set_source_pixbuf (cr,
- ((get_state () == Gtk::STATE_ACTIVE) && (_active_face_pixbuf != 0)) ?
- _active_face_pixbuf->gobj() :
- _face_pixbuf->gobj(),
- 0,
- 0);
- cairo_fill (cr);
-
- cairo_rectangle (cr, 0, 0, get_width(), get_height());
- if (_dragging) {
- gdk_cairo_set_source_pixbuf (cr,
- _active_handle_pixbuf->gobj(),
- _last_drawn_x - (int)(_active_handle_pixbuf->get_width()/2.0 + 0.5),
- _last_drawn_y - (int)(_active_handle_pixbuf->get_height()/2.0 + 0.5));
- } else {
- gdk_cairo_set_source_pixbuf (cr,
- _handle_pixbuf->gobj(),
- _last_drawn_x - (int)(_handle_pixbuf->get_width()/2.0 + 0.5),
- _last_drawn_y - (int)(_handle_pixbuf->get_height()/2.0 + 0.5));
- }
- cairo_fill (cr);
+ gdk_cairo_set_source_pixbuf (cr,
+ ((get_state () == Gtk::STATE_ACTIVE) && (_active_face_pixbuf != 0)) ?
+ _active_face_pixbuf->gobj() :
+ _face_pixbuf->gobj(),
+ 0,
+ 0);
+ cairo_paint (cr);
+
+ const Glib::RefPtr<Gdk::Pixbuf> handle_pixbuf (_dragging ? _active_handle_pixbuf : _handle_pixbuf);
+ gdk_cairo_set_source_pixbuf (cr,
+ handle_pixbuf->gobj(),
+ (_last_drawn_x - (int)((handle_pixbuf->get_width() * xscale) / 2.0 + 0.5)) / xscale,
+ (_last_drawn_y - (int)((handle_pixbuf->get_height() * yscale) / 2.0 + 0.5)) / yscale);
+ cairo_paint (cr);
}
void
void
Fader::on_size_allocate (Gtk::Allocation& alloc)
{
- CairoWidget::on_size_allocate(alloc);
+ CairoWidget::on_size_allocate(alloc);
update_unity_position ();
}
bool
Fader::on_button_press_event (GdkEventButton* ev)
{
- focus_handler();
-
+ focus_handler();
+
if (_read_only) {
return false;
}
-
+
if (ev->type != GDK_BUTTON_PRESS) {
- return false;
+ return false;
}
if (ev->button != 1 && ev->button != 2) {
_grab_start_mouse_y = ev->y;
get_handle_position (_grab_start_handle_x, _grab_start_handle_y);
- double hw = _handle_pixbuf->get_width();
- double hh = _handle_pixbuf->get_height();
+ 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;
if ((ev->x < (_grab_start_handle_x - hw/2)) || (ev->x > (_grab_start_handle_x + hw/2)) || (ev->y < (_grab_start_handle_y - hh/2)) || (ev->y > (_grab_start_handle_y + hh/2))) {
return false;
}
-
+
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 );
+ _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,
- NULL,
- ev->time);
+ GdkEventMask (Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK),
+ NULL,
+ NULL,
+ ev->time);
queue_draw();
-
+
return true;
}
return false;
}
- int step_factor = 1;
+ int step_factor = 1;
switch (ev->direction) {
case GDK_SCROLL_RIGHT:
case GDK_SCROLL_UP:
#ifdef __APPLE__
- if ( ev->state & GDK_SHIFT_MASK ) {
- step_factor = -1;
- } else {
- step_factor = 1;
- }
+ if ( ev->state & GDK_SHIFT_MASK ) {
+ step_factor = -1;
+ } else {
+ step_factor = 1;
+ }
#else
- step_factor = 1;
+ step_factor = 1;
#endif
break;
case GDK_SCROLL_LEFT:
case GDK_SCROLL_DOWN:
#ifdef __APPLE__
- if ( ev->state & GDK_SHIFT_MASK ) {
- step_factor = 1;
- } else {
- step_factor = -1;
- }
+ if ( ev->state & GDK_SHIFT_MASK ) {
+ step_factor = 1;
+ } else {
+ step_factor = -1;
+ }
#else
- step_factor = -1;
+ step_factor = -1;
#endif
break;
default:
return false;
}
- adjustment.set_value (adjustment.get_value() + step_factor * (adjustment.get_step_increment() ));
+ adjustment.set_value (adjustment.get_value() + step_factor * (adjustment.get_step_increment() ));
return true;
}
if (_dragging) {
double ev_pos_x;
double ev_pos_y;
-
+
if (ev->window != _grab_window) {
_grab_window = ev->window;
return true;
}
get_closest_point_on_line(_min_pos_x, _min_pos_y,
- _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 );
-
+ _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((_max_pos_x - _min_pos_x) * (_max_pos_x - _min_pos_x) +
- (_max_pos_y - _min_pos_y) * (_max_pos_y - _min_pos_y));
-
+ (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;
void
Fader::adjustment_changed ()
{
- double handle_x;
+ double handle_x;
double handle_y;
get_handle_position (handle_x, handle_y);
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