#include <iostream>
-#include <gtkmm2ext/pixfader.h>
+#include "gtkmm2ext/pixfader.h"
+#include "gtkmm2ext/keyboard.h"
+#include "gtkmm2ext/rgb_macros.h"
using namespace Gtkmm2ext;
using namespace Gtk;
-using namespace Gdk;
using namespace std;
-#ifdef GTKOSX
-int PixFader::fine_scale_modifier = GDK_META_MASK;
-#else
-int PixFader::fine_scale_modifier = GDK_CONTROL_MASK;
-#endif
-
-int PixFader::extra_fine_scale_modifier = GDK_MOD1_MASK;
-
-PixFader::PixFader (Glib::RefPtr<Pixbuf> belt, Gtk::Adjustment& adj, int orientation)
-
+PixFader::PixFader (
+ Glib::RefPtr<Gdk::Pixbuf> belt,
+ Glib::RefPtr<Gdk::Pixbuf> belt_desensitised,
+ Gtk::Adjustment& adj,
+ int orientation,
+ int fader_length
+ )
: adjustment (adj),
- pixbuf (belt),
_orien(orientation)
{
+ pixbuf[NORMAL] = belt;
+ pixbuf[DESENSITISED] = belt_desensitised;
+
dragging = false;
default_value = adjustment.get_value();
last_drawn = -1;
view.y = 0;
if (orientation == VERT) {
- view.width = girth = pixbuf->get_width();
- view.height = span = pixbuf->get_height() / 2;
- unity_loc = (int) rint (view.height - (default_value * view.height)) - 1;
+ view.width = girth = pixbuf[0]->get_width();
} else {
- view.width = span = pixbuf->get_width () / 2;
- view.height = girth = pixbuf->get_height();
- unity_loc = (int) rint (default_value * view.width) - 1;
- }
+ view.height = girth = pixbuf[0]->get_height();
+ }
+
+ set_fader_length (fader_length);
- add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK|Gdk::SCROLL_MASK);
+ add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK|Gdk::SCROLL_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
adjustment.signal_value_changed().connect (mem_fun (*this, &PixFader::adjustment_changed));
adjustment.signal_changed().connect (mem_fun (*this, &PixFader::adjustment_changed));
+
+ for (int i = 0; i < STATES; ++i) {
+ Cairo::Format format;
+
+ if (pixbuf[i]->get_has_alpha()) {
+ format = Cairo::FORMAT_ARGB32;
+ } else {
+ format = Cairo::FORMAT_RGB24;
+ }
+
+ belt_surface[i] = Cairo::ImageSurface::create (format, pixbuf[i]->get_width(), pixbuf[i]->get_height());
+ belt_context[i] = Cairo::Context::create (belt_surface[i]);
+ Gdk::Cairo::set_source_pixbuf (belt_context[i], pixbuf[i], 0.0, 0.0);
+ belt_context[i]->paint();
+ }
+
+ left_r = 0;
+ left_g = 0;
+ left_b = 0;
+
+ right_r = 0;
+ right_g = 0;
+ right_b = 0;
}
PixFader::~PixFader ()
{
}
+void
+PixFader::set_border_colors (uint32_t left, uint32_t right)
+{
+ int r, g, b;
+ UINT_TO_RGB(left, &r, &g, &b);
+ left_r = r/255.0;
+ left_g = g/255.0;
+ left_b = b/255.0;
+ UINT_TO_RGB(right, &r, &g, &b);
+ right_r = r/255.0;
+ right_g = g/255.0;
+ right_b = b/255.0;
+}
+
bool
PixFader::on_expose_event (GdkEventExpose* ev)
{
- GdkRectangle intersection;
- int srcx, srcy, ds = display_span ();
+ int const pi = get_sensitive() ? NORMAL : DESENSITISED;
+
+ Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
+ int srcx, srcy;
+ int const ds = display_span ();
int offset_into_pixbuf = (int) floor (span / ((float) span / ds));
- Glib::RefPtr<Gdk::GC> fg_gc (get_style()->get_fg_gc(get_state()));
- if (gdk_rectangle_intersect (&view, &ev->area, &intersection)) {
- if (_orien == VERT) {
- srcx = intersection.x;
- srcy = offset_into_pixbuf + intersection.y;
- } else {
- srcx = offset_into_pixbuf + intersection.x;
- srcy = intersection.y;
- }
- get_window()->draw_pixbuf (fg_gc, pixbuf,
- srcx, srcy,
- intersection.x, intersection.y,
- intersection.width, intersection.height,
- Gdk::RGB_DITHER_NONE, 0, 0);
-
- get_window()->draw_line (get_style()->get_bg_gc(STATE_ACTIVE), 0, 0, view.width - 1, 0); /* top */
- get_window()->draw_line (get_style()->get_bg_gc(STATE_ACTIVE), 0, 0, 0, view.height - 1); /* left */
- get_window()->draw_line (get_style()->get_bg_gc(STATE_NORMAL), view.width - 1, 0, view.width - 1, view.height - 1); /* right */
- get_window()->draw_line (get_style()->get_bg_gc(STATE_NORMAL), 0, view.height - 1, view.width - 1, view.height - 1); /* bottom */
+ /* account for fader lengths that are shorter than the fader pixbuf */
+ if (_orien == VERT) {
+ offset_into_pixbuf += pixbuf[pi]->get_height() / 2 - view.height;
+ } else {
+ offset_into_pixbuf += pixbuf[pi]->get_width() / 2 - view.width;
}
- /* always draw the line */
+ context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
+ context->clip ();
+
+ if (_orien == VERT) {
+ srcx = 0;
+ srcy = offset_into_pixbuf;
+ } else {
+ srcx = offset_into_pixbuf;
+ srcy = 0;
+ }
+
+ /* fader */
+
+ context->save();
+ context->set_source (belt_surface[pi], -srcx, -srcy);
+ context->rectangle (0, 0, get_width(), get_height());
+ context->clip ();
+ context->paint();
+ context->restore();
+
+ /* bounding box lines (2 colors for nicer visuals) */
+
+ /* top and left side */
+
+ context->set_line_width (1);
+ context->set_source_rgb (left_r, left_g, left_b);
+ context->move_to (view.width - 1, 0); /* upper right */
+ context->line_to (0, 0); /* upper left */
+ context->line_to (0, view.height - 1);/* lower left */
+ context->stroke ();
+
+ /* bottom & right side */
+
+ context->set_line_width (1);
+ context->set_source_rgb (right_r, right_g, right_b);
+ context->move_to (0, view.height - 0.5); /* lower left */
+ context->line_to (view.width - 0.5, view.height - 0.5); /* lower right */
+ context->line_to (view.width - 0.5, 0); /* upper right */
+ context->stroke ();
+
+ /* always draw the unity-position line */
+
+
if (_orien == VERT) {
- get_window()->draw_line (fg_gc, 1, unity_loc, girth - 2, unity_loc);
+ context->set_line_width (1);
+ context->set_source_rgb (0.0, 1.0, 0.0);
+ context->move_to (1, unity_loc);
+ context->line_to (girth, unity_loc);
+ context->stroke ();
} else {
- get_window()->draw_line (fg_gc, unity_loc, 1, unity_loc, girth - 2);
+ context->set_line_width (1);
+ context->set_source_rgb (0.0, 1.0, 0.0);
+ context->move_to (unity_loc, 1);
+ context->line_to (unity_loc, girth - 1);
+ context->stroke ();
}
+
last_drawn = ds;
+
return true;
}
bool
PixFader::on_button_press_event (GdkEventButton* ev)
{
- switch (ev->button) {
- case 1:
- case 2:
- add_modal_grab();
- grab_loc = (_orien == VERT) ? ev->y : ev->x;
- grab_start = (_orien == VERT) ? ev->y : ev->x;
- grab_window = ev->window;
- dragging = true;
- break;
- default:
- break;
- }
-
+ if (ev->type != GDK_BUTTON_PRESS) {
+ return true;
+ }
- return false;
+ if (ev->button != 1 && ev->button != 2) {
+ return false;
+ }
+
+ add_modal_grab ();
+ grab_loc = (_orien == VERT) ? ev->y : ev->x;
+ grab_start = (_orien == VERT) ? ev->y : ev->x;
+ grab_window = ev->window;
+ dragging = true;
+
+ if (ev->button == 2) {
+ set_adjustment_from_event (ev);
+ }
+
+ return true;
}
bool
PixFader::on_button_release_event (GdkEventButton* ev)
{
- double fract, ev_pos;
-
- ev_pos = (_orien == VERT) ? ev->y : 0; // Don't step if we are horizontal
+ double const ev_pos = (_orien == VERT) ? ev->y : ev->x;
switch (ev->button) {
case 1:
/* no motion - just a click */
- if (ev->state & Gdk::SHIFT_MASK) {
+ if (ev->state & Keyboard::TertiaryModifier) {
adjustment.set_value (default_value);
- } else if (ev->state & fine_scale_modifier) {
+ } else if (ev->state & Keyboard::GainFineScaleModifier) {
adjustment.set_value (adjustment.get_lower());
- } else if (ev_pos < span - display_span()) {
+ } else if ((_orien == VERT && ev_pos < span - display_span()) || (_orien == HORIZ && ev_pos > span - display_span())) {
/* above the current display height, remember X Window coords */
adjustment.set_value (adjustment.get_value() + adjustment.get_step_increment());
} else {
if (dragging) {
remove_modal_grab();
dragging = false;
-
- fract = 1.0 - (ev_pos / span); // inverted X Window coordinates, grrr
-
- fract = min (1.0, fract);
- fract = max (0.0, fract);
-
- adjustment.set_value (fract * (adjustment.get_upper() - adjustment.get_lower()));
+ set_adjustment_from_event (ev);
}
break;
PixFader::on_scroll_event (GdkEventScroll* ev)
{
double scale;
+ bool ret = false;
- if (ev->state & fine_scale_modifier) {
- if (ev->state & extra_fine_scale_modifier) {
+ if (ev->state & Keyboard::GainFineScaleModifier) {
+ if (ev->state & Keyboard::GainExtraFineScaleModifier) {
scale = 0.01;
} else {
scale = 0.05;
}
if (_orien == VERT) {
+
+ /* should left/right scroll affect vertical faders ? */
+
switch (ev->direction) {
case GDK_SCROLL_UP:
- /* wheel up */
adjustment.set_value (adjustment.get_value() + (adjustment.get_page_increment() * scale));
+ ret = true;
break;
case GDK_SCROLL_DOWN:
- /* wheel down */
adjustment.set_value (adjustment.get_value() - (adjustment.get_page_increment() * scale));
+ ret = true;
break;
default:
break;
}
} else {
+
+ /* up/down scrolls should definitely affect horizontal faders
+ because they are so much easier to use
+ */
+
switch (ev->direction) {
case GDK_SCROLL_RIGHT:
- /* wheel right */
+ case GDK_SCROLL_UP:
adjustment.set_value (adjustment.get_value() + (adjustment.get_page_increment() * scale));
+ ret = true;
break;
case GDK_SCROLL_LEFT:
- /* wheel left */
+ case GDK_SCROLL_DOWN:
adjustment.set_value (adjustment.get_value() - (adjustment.get_page_increment() * scale));
+ ret = true;
break;
default:
break;
}
}
- return false;
+ return ret;
}
bool
PixFader::on_motion_notify_event (GdkEventMotion* ev)
{
if (dragging) {
- double fract, delta, scale, ev_pos;
- ev_pos = (_orien == VERT) ? ev->y : ev->x;
- //cerr << "PixFader::on_motion_notify_event() called x:y = " << ev->x << ":" << ev->y;
+ double scale = 1.0;
+ double const ev_pos = (_orien == VERT) ? ev->y : ev->x;
+
if (ev->window != grab_window) {
grab_loc = ev_pos;
grab_window = ev->window;
return true;
}
- if (ev->state & fine_scale_modifier) {
- if (ev->state & extra_fine_scale_modifier) {
+ if (ev->state & Keyboard::GainFineScaleModifier) {
+ if (ev->state & Keyboard::GainExtraFineScaleModifier) {
scale = 0.05;
} else {
scale = 0.1;
}
- } else {
- scale = 1.0;
}
- //cerr << " ev_pos=" << ev_pos << " grab_loc=" << grab_loc;
- delta = ev_pos - grab_loc;
+
+ double const delta = ev_pos - grab_loc;
grab_loc = ev_pos;
- fract = (delta / span);
+ double fract = (delta / span);
fract = min (1.0, fract);
fract = max (-1.0, fract);
}
adjustment.set_value (adjustment.get_value() + scale * fract * (adjustment.get_upper() - adjustment.get_lower()));
- //cerr << " adj=" << adjustment.get_value() << " fract=" << fract << " delta=" << delta << " scale=" << scale << endl;
}
return true;
}
}
+/** @return pixel offset of the current value from the right or bottom of the fader */
int
PixFader::display_span ()
{
- float fract = (adjustment.get_upper() - adjustment.get_value ()) / ((adjustment.get_upper() - adjustment.get_lower()));
- return (_orien == VERT) ? (int)floor (span * (1.0 - fract)) : (int)floor (span * fract);
+ float fract = (adjustment.get_value () - adjustment.get_lower()) / ((adjustment.get_upper() - adjustment.get_lower()));
+ return (_orien != VERT) ? (int)floor (span * (1.0 - fract)) : (int)floor (span * fract);
+}
+
+void
+PixFader::set_fader_length (int l)
+{
+ if (_orien == VERT) {
+ view.height = span = l;
+ } else {
+ view.width = span = l;
+ }
+
+ update_unity_position ();
+
+ queue_draw ();
}
+void
+PixFader::update_unity_position ()
+{
+ if (_orien == VERT) {
+ unity_loc = (int) rint (view.height * (1 - (default_value / (adjustment.get_upper() - adjustment.get_lower())))) - 1;
+ } else {
+ unity_loc = (int) rint (default_value * view.width);
+ }
+
+ queue_draw ();
+}
+
+bool
+PixFader::on_enter_notify_event (GdkEventCrossing*)
+{
+ Keyboard::magic_widget_grab_focus ();
+ return false;
+}
+
+bool
+PixFader::on_leave_notify_event (GdkEventCrossing*)
+{
+ Keyboard::magic_widget_drop_focus();
+ return false;
+}
+
+void
+PixFader::set_adjustment_from_event (GdkEventButton* ev)
+{
+ double fract = (_orien == VERT) ? (1.0 - (ev->y / span)) : (ev->x / span);
+
+ fract = min (1.0, fract);
+ fract = max (0.0, fract);
+
+ adjustment.set_value (fract * (adjustment.get_upper () - adjustment.get_lower ()));
+}
+
+void
+PixFader::set_default_value (float d)
+{
+ default_value = d;
+ update_unity_position ();
+}
projects / ardour.git / blobdiff