#include <iostream>
#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;
-
-int PixFader::fine_scale_modifier = Keyboard::PrimaryModifier;
-int PixFader::extra_fine_scale_modifier = Keyboard::SecondaryModifier;
-
-PixFader::PixFader (Glib::RefPtr<Pixbuf> belt, Gtk::Adjustment& adj, int orientation, int fader_length)
+PixFader::PixFader (Glib::RefPtr<Gdk::Pixbuf> belt, Gtk::Adjustment& adj, int orientation, int fader_length)
: adjustment (adj),
pixbuf (belt),
_orien(orientation)
{
+ Cairo::Format format;
+
dragging = false;
default_value = adjustment.get_value();
last_drawn = -1;
adjustment.signal_value_changed().connect (mem_fun (*this, &PixFader::adjustment_changed));
adjustment.signal_changed().connect (mem_fun (*this, &PixFader::adjustment_changed));
+
+ if (pixbuf->get_has_alpha()) {
+ format = Cairo::FORMAT_ARGB32;
+ } else {
+ format = Cairo::FORMAT_RGB24;
+ }
+ belt_surface = Cairo::ImageSurface::create (format, pixbuf->get_width(), pixbuf->get_height());
+ belt_context = Cairo::Context::create (belt_surface);
+ Gdk::Cairo::set_source_pixbuf (belt_context, pixbuf, 0.0, 0.0);
+ belt_context->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;
+ 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 */
} else {
offset_into_pixbuf += pixbuf->get_width() / 2 - view.width;
}
+
+ context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
+ context->clip ();
- Glib::RefPtr<Gdk::GC> fg_gc (get_style()->get_fg_gc(get_state()));
+ if (_orien == VERT) {
+ srcx = 0;
+ srcy = offset_into_pixbuf;
+ } else {
+ srcx = offset_into_pixbuf;
+ srcy = 0;
+ }
+
+ /* fader */
+
+ context->save();
+ context->set_source (belt_surface, -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 (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 */
- }
- /* always draw the 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;
}
PixFader::on_button_press_event (GdkEventButton* ev)
{
if (ev->type != GDK_BUTTON_PRESS) {
- return false;
+ return true;
}
if (ev->button != 1 && ev->button != 2) {
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 ((_orien == VERT && ev_pos < span - display_span()) || (_orien == HORIZ && ev_pos > span - display_span())) {
/* above the current display height, remember X Window coords */
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;
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;
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
{
if (_orien == VERT) {
view.height = span = l;
- unity_loc = (int) rint (view.height - (default_value * view.height)) - 1;
} else {
view.width = span = l;
- unity_loc = (int) rint (default_value * view.width) - 1;
+ }
+
+ 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 ();
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