#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;
-PixFader::PixFader (Glib::RefPtr<Pixbuf> belt, Gtk::Adjustment& adj)
+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;
- pixheight = pixbuf->get_height();
view.x = 0;
view.y = 0;
- view.width = pixbuf->get_width();
- view.height = pixheight / 2;
- unity_y = (int) rint (view.height - (default_value * view.height)) - 1;
+ if (orientation == VERT) {
+ view.width = girth = pixbuf[0]->get_width();
+ } else {
+ 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 dh = display_height ();
- int offset_into_pixbuf = (int) floor (view.height / ((float) view.height / dh));
-
- if (gdk_rectangle_intersect (&view, &ev->area, &intersection)) {
- get_window()->draw_pixbuf(get_style()->get_fg_gc(get_state()), pixbuf,
- intersection.x, offset_into_pixbuf + intersection.y,
- intersection.x, intersection.y,
- intersection.width, intersection.height,
- Gdk::RGB_DITHER_NONE, 0, 0);
+ 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));
+
+ /* 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) {
+ 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 {
+ 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 ();
+ }
- get_window()->draw_line (get_style()->get_fg_gc(get_state()), 0, unity_y, view.width - 2, unity_y);
+ last_drawn = ds;
- last_drawn = dh;
return true;
}
bool
PixFader::on_button_press_event (GdkEventButton* ev)
{
- switch (ev->button) {
- case 1:
- case 2:
- if (!(ev->state & Gdk::SHIFT_MASK)) {
- add_modal_grab();
- grab_y = ev->y;
- grab_start = ev->y;
- 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 scale;
- double fract;
+ double const ev_pos = (_orien == VERT) ? ev->y : ev->x;
- if (ev->state & GDK_CONTROL_MASK) {
- if (ev->state & GDK_MOD1_MASK) {
- scale = 0.05;
- } else {
- scale = 0.1;
- }
- } else {
- scale = 1.0;
- }
-
switch (ev->button) {
case 1:
if (dragging) {
remove_modal_grab();
dragging = false;
- if (ev->y == grab_start) {
+ if (ev_pos == grab_start) {
+
/* no motion - just a click */
- if (ev->y < view.height - display_height()) {
+ if (ev->state & Keyboard::TertiaryModifier) {
+ adjustment.set_value (default_value);
+ } else if (ev->state & Keyboard::GainFineScaleModifier) {
+ adjustment.set_value (adjustment.get_lower());
+ } 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 {
}
}
- } else {
-
- if (ev->state & Gdk::SHIFT_MASK) {
- adjustment.set_value (default_value);
- }
- }
+ }
break;
case 2:
if (dragging) {
remove_modal_grab();
dragging = false;
-
- fract = 1.0 - (ev->y / view.height); // inverted X Window coordinates, grrr
-
- fract = min (1.0, fract);
- fract = max (0.0, fract);
-
- adjustment.set_value (scale * fract * (adjustment.get_upper() - adjustment.get_lower()));
+ set_adjustment_from_event (ev);
}
break;
PixFader::on_scroll_event (GdkEventScroll* ev)
{
double scale;
-
- if (ev->state & GDK_CONTROL_MASK) {
- if (ev->state & GDK_MOD1_MASK) {
- scale = 0.05;
+ bool ret = false;
+
+ if (ev->state & Keyboard::GainFineScaleModifier) {
+ if (ev->state & Keyboard::GainExtraFineScaleModifier) {
+ scale = 0.01;
} else {
- scale = 0.1;
+ scale = 0.05;
}
} else {
- scale = 0.5;
+ scale = 0.25;
}
- switch (ev->direction) {
+ if (_orien == VERT) {
- case GDK_SCROLL_UP:
- /* wheel up */
- adjustment.set_value (adjustment.get_value() + (adjustment.get_page_increment() * scale));
- break;
- case GDK_SCROLL_DOWN:
- /* wheel down */
- adjustment.set_value (adjustment.get_value() - (adjustment.get_page_increment() * scale));
- break;
- default:
- break;
+ /* should left/right scroll affect vertical faders ? */
+
+ switch (ev->direction) {
+
+ case GDK_SCROLL_UP:
+ adjustment.set_value (adjustment.get_value() + (adjustment.get_page_increment() * scale));
+ ret = true;
+ break;
+ case GDK_SCROLL_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:
+ case GDK_SCROLL_UP:
+ adjustment.set_value (adjustment.get_value() + (adjustment.get_page_increment() * scale));
+ ret = true;
+ break;
+ case GDK_SCROLL_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;
- double delta;
- double scale;
-
+ double scale = 1.0;
+ double const ev_pos = (_orien == VERT) ? ev->y : ev->x;
+
if (ev->window != grab_window) {
- grab_y = ev->y;
+ grab_loc = ev_pos;
grab_window = ev->window;
return true;
}
- if (ev->state & GDK_CONTROL_MASK) {
- if (ev->state & GDK_MOD1_MASK) {
+ if (ev->state & Keyboard::GainFineScaleModifier) {
+ if (ev->state & Keyboard::GainExtraFineScaleModifier) {
scale = 0.05;
} else {
scale = 0.1;
}
- } else {
- scale = 1.0;
}
- delta = ev->y - grab_y;
- grab_y = ev->y;
+ double const delta = ev_pos - grab_loc;
+ grab_loc = ev_pos;
- fract = (delta / view.height);
+ double fract = (delta / span);
fract = min (1.0, fract);
fract = max (-1.0, fract);
// X Window is top->bottom for 0..Y
- fract = -fract;
+ if (_orien == VERT) {
+ fract = -fract;
+ }
adjustment.set_value (adjustment.get_value() + scale * fract * (adjustment.get_upper() - adjustment.get_lower()));
}
void
PixFader::adjustment_changed ()
{
- if (display_height() != last_drawn) {
+ if (display_span() != last_drawn) {
queue_draw ();
}
}
+/** @return pixel offset of the current value from the right or bottom of the fader */
int
-PixFader::display_height ()
+PixFader::display_span ()
+{
+ 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)
{
- float fract = (adjustment.get_upper() - adjustment.get_value ()) / ((adjustment.get_upper() - adjustment.get_lower()));
- return (int) floor (view.height * (1.0 - fract));
+ default_value = d;
+ update_unity_position ();
}
projects / ardour.git / blobdiff