#include <iostream>
+
+#include "pbd/stacktrace.h"
+
#include "gtkmm2ext/pixfader.h"
#include "gtkmm2ext/keyboard.h"
#include "gtkmm2ext/rgb_macros.h"
#define CORNER_RADIUS 4
#define FADER_RESERVE (2*CORNER_RADIUS)
+std::list<PixFader::FaderImage*> PixFader::_patterns;
+
PixFader::PixFader (Gtk::Adjustment& adj, int orientation, int fader_length, int fader_girth)
: adjustment (adj)
, span (fader_length)
, girth (fader_girth)
, _orien (orientation)
, pattern (0)
- , texture_pattern (0)
, _hovering (false)
, last_drawn (-1)
, dragging (false)
PixFader::~PixFader ()
{
- free_patterns ();
}
-void
-PixFader::free_patterns ()
+cairo_pattern_t*
+PixFader::find_pattern (double afr, double afg, double afb,
+ double abr, double abg, double abb,
+ int w, int h)
{
- if (pattern) {
- cairo_pattern_destroy (pattern);
- pattern = 0;
- }
- if (texture_pattern) {
- cairo_pattern_destroy (texture_pattern);
- texture_pattern = 0;
+ for (list<FaderImage*>::iterator f = _patterns.begin(); f != _patterns.end(); ++f) {
+ if ((*f)->matches (afr, afg, afb, abr, abg, abb, w, h)) {
+ return (*f)->pattern;
+ }
}
+ return 0;
}
void
PixFader::create_patterns ()
{
Gdk::Color c = get_style()->get_fg (get_state());
- float r, g, b;
-
- free_patterns ();
-
- r = c.get_red_p ();
- g = c.get_green_p ();
- b = c.get_blue_p ();
-
- cairo_surface_t* texture_surface;
- cairo_t* tc = 0;
- const double texture_margin = 4.0;
-
- if (_orien == VERT) {
-
- pattern = cairo_pattern_create_linear (0.0, 0.0, get_width(), 0);
- cairo_pattern_add_color_stop_rgba (pattern, 0, r*0.8,g*0.8,b*0.8, 1.0);
- cairo_pattern_add_color_stop_rgba (pattern, 1, r*0.6,g*0.6,b*0.6, 1.0);
-
- if (girth > 10) {
- texture_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, girth, 6);
- tc = cairo_create (texture_surface);
-
- for (double x = texture_margin; x < girth - texture_margin; x += 4.0) {
- cairo_set_source_rgba (tc, 0.533, 0.533, 0.580, 1.0);
- cairo_rectangle (tc, x, 2, 2, 2);
- cairo_fill (tc);
- cairo_set_source_rgba (tc, 0.337, 0.345, 0.349, 1.0);
- cairo_rectangle (tc, x, 2, 1, 1);
- cairo_fill (tc);
- }
- }
+ float fr, fg, fb;
+ float br, bg, bb;
- } else {
+ fr = c.get_red_p ();
+ fg = c.get_green_p ();
+ fb = c.get_blue_p ();
- texture_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 6, girth);
- tc = cairo_create (texture_surface);
-
- pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
- cairo_pattern_add_color_stop_rgba (pattern, 0, r*0.8,g*0.8,b*0.8, 1.0);
- cairo_pattern_add_color_stop_rgba (pattern, 1, r*0.6,g*0.6,b*0.6, 1.0);
-
- if (girth > 10) {
- for (double y = texture_margin; y < girth - texture_margin; y += 4.0) {
- cairo_set_source_rgba (tc, 0.533, 0.533, 0.580, 1.0);
- cairo_rectangle (tc, 0, y, 2, 2);
- cairo_fill (tc);
- cairo_set_source_rgba (tc, 0.337, 0.345, 0.349, 1.0);
- cairo_rectangle (tc, 0, y, 1, 1);
- cairo_fill (tc);
- }
- }
- }
+ c = get_style()->get_bg (get_state());
- if (texture_surface) {
- texture_pattern = cairo_pattern_create_for_surface (texture_surface);
- cairo_pattern_set_extend (texture_pattern, CAIRO_EXTEND_REPEAT);
-
- cairo_destroy (tc);
- cairo_surface_destroy (texture_surface);
- }
+ br = c.get_red_p ();
+ bg = c.get_green_p ();
+ bb = c.get_blue_p ();
if ( !_text.empty()) {
_layout->get_pixel_size (_text_width, _text_height);
text_r = c.get_red_p ();
text_g = c.get_green_p ();
text_b = c.get_blue_p ();
+
+ cairo_surface_t* surface;
+ cairo_t* tc = 0;
+ float radius = CORNER_RADIUS;
+
+ double w = get_width();
+
+ if (w <= 1 || get_height() <= 1) {
+ return;
+ }
+
+ if ((pattern = find_pattern (fr, fg, fb, br, bg, bb, get_width(), get_height())) != 0) {
+ /* found it - use it */
+ return;
+ }
+
+ if (_orien == VERT) {
+
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, get_width(), get_height() * 2.0);
+ tc = cairo_create (surface);
+
+ /* paint background + border */
+
+ cairo_pattern_t* shade_pattern = cairo_pattern_create_linear (0.0, 0.0, get_width(), 0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0, br*0.8,bg*0.8,bb*0.8, 1.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1, br*0.6,bg*0.6,bb*0.6, 1.0);
+ cairo_set_source (tc, shade_pattern);
+ cairo_rectangle (tc, 0, 0, get_width(), get_height() * 2.0);
+ cairo_fill (tc);
+
+ cairo_pattern_destroy (shade_pattern);
+
+ /* paint lower shade */
+
+ w -= 2.0;
+
+ shade_pattern = cairo_pattern_create_linear (0.0, 0.0, w, 0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0, fr*0.8,fg*0.8,fb*0.8, 1.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1, fr*0.6,fg*0.6,fb*0.6, 1.0);
+ cairo_set_source (tc, shade_pattern);
+ Gtkmm2ext::rounded_top_half_rectangle (tc, 1.0, get_height(), w, get_height(), radius-1.5);
+ cairo_fill (tc);
+
+ cairo_pattern_destroy (shade_pattern);
+
+ pattern = cairo_pattern_create_for_surface (surface);
+
+ } else {
+
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, get_width() * 2.0, get_height());
+ tc = cairo_create (surface);
+
+ /* paint right shade (background section)*/
+
+ cairo_pattern_t* shade_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0, br*0.8,bg*0.8,bb*0.8, 1.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1, br*0.6,bg*0.6,bb*0.6, 1.0);
+ cairo_set_source (tc, shade_pattern);
+ cairo_rectangle (tc, 0, 0, get_width() * 2.0, get_height());
+ cairo_fill (tc);
+
+ /* paint left shade (active section/foreground) */
+
+ shade_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0, fr*0.8,fg*0.8,fb*0.8, 1.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1, fr*0.6,fg*0.6,fb*0.6, 1.0);
+ cairo_set_source (tc, shade_pattern);
+ Gtkmm2ext::rounded_right_half_rectangle (tc, 0, 1, get_width(), get_height() - 2.0, radius-1.5);
+ cairo_fill (tc);
+ cairo_pattern_destroy (shade_pattern);
+
+ pattern = cairo_pattern_create_for_surface (surface);
+ }
+
+ /* cache it for others to use */
+
+ _patterns.push_back (new FaderImage (pattern, fr, fg, fb, br, bg, bb, get_width(), get_height()));
+
+ cairo_destroy (tc);
+ cairo_surface_destroy (surface);
}
bool
Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
cairo_t* cr = context->cobj();
- cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
- cairo_clip (cr);
-
if (!pattern) {
create_patterns();
}
-
-// int const pi = get_sensitive() ? NORMAL : DESENSITISED;
-
- int ds = display_span ();
+ if (!pattern) {
+
+ /* this isn't supposed to be happen, but some wackiness whereby
+ the pixfader ends up with a 1xN or Nx1 size allocation
+ leads to it. the basic wackiness needs fixing but we
+ shouldn't crash. just fill in the expose area with
+ our bg color.
+ */
+
+ Gdk::Color c = get_style()->get_bg (get_state());
+ float br, bg, bb;
+
+ br = c.get_red_p ();
+ bg = c.get_green_p ();
+ bb = c.get_blue_p ();
+ cairo_set_source_rgb (cr, br, bg, bb);
+ cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
+ cairo_fill (cr);
+
+ return true;
+ }
+
+ cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
+ cairo_clip (cr);
+
+ int ds = display_span ();
float w = get_width();
float h = get_height();
- float radius = CORNER_RADIUS;
-
- /* background/ border */
- cairo_set_source_rgb (cr, 0.290, 0.286, 0.337);
- cairo_rectangle (cr, 0, 0, w, h);
- cairo_fill (cr);
- /* draw active box */
-
cairo_matrix_t matrix;
if (_orien == VERT) {
}
cairo_set_source (cr, pattern);
- Gtkmm2ext::rounded_top_half_rectangle (cr, 1, 1+ds, w-1, h-(1+ds)-1, radius-1.5);
+ cairo_matrix_init_translate (&matrix, 0, (h - ds));
+ cairo_pattern_set_matrix (pattern, &matrix);
+ Gtkmm2ext::rounded_rectangle (cr, 0, 0, w, h, CORNER_RADIUS-1.5);
cairo_fill (cr);
-
- if (texture_pattern) {
- cairo_save (cr);
- cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
- cairo_set_source (cr, texture_pattern);
- cairo_matrix_init_translate (&matrix, -1, -(1+ds));
- cairo_pattern_set_matrix (texture_pattern, &matrix);
- cairo_rectangle (cr, 1, 1+ds, w-1, h-(1+ds)-1);
- cairo_fill (cr);
- cairo_restore (cr);
- }
} else {
ds = FADER_RESERVE;
}
+ /*
+ if ds == w, the pattern does not need to be translated
+ if ds == 0 (or FADER_RESERVE), the pattern needs to be moved
+ w to the left, which is -w in pattern space, and w in
+ user space
+ if ds == 10, then the pattern needs to be moved w - 10
+ to the left, which is -(w-10) in pattern space, which
+ is (w - 10) in user space
+
+ thus: translation = (w - ds)
+ */
+
cairo_set_source (cr, pattern);
- Gtkmm2ext::rounded_right_half_rectangle (cr, 1, 1, ds-1, h-1, radius-1.5);
+ cairo_matrix_init_translate (&matrix, w - ds, 0);
+ cairo_pattern_set_matrix (pattern, &matrix);
+ Gtkmm2ext::rounded_rectangle (cr, 0, 0, w, h, CORNER_RADIUS-1.5);
cairo_fill (cr);
-
- if (texture_pattern) {
- cairo_save (cr);
- cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
- cairo_set_source (cr, texture_pattern);
- cairo_matrix_init_translate (&matrix, -1, -1);
- cairo_pattern_set_matrix (texture_pattern, &matrix);
- cairo_rectangle (cr, 1, 1, ds-1, h-1);
- cairo_fill (cr);
- cairo_restore (cr);
- }
}
/* draw the unity-position line if it's not at either end*/
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->line_to (girth - 2.0, 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);
+ context->line_to (unity_loc, girth - 2.0);
context->stroke ();
}
}
}
-
- if ( !_text.empty() ) {
- cairo_new_path (cr);
+ if ( !_text.empty() ) {
/* center text */
+ cairo_new_path (cr);
cairo_move_to (cr, (get_width() - _text_width)/2.0, get_height()/2.0 - _text_height/2.0);
-
cairo_set_source_rgba (cr, text_r, text_g, text_b, 0.9);
pango_cairo_show_layout (cr, _layout->gobj());
}
// if (Config->get_widget_prelight()) { //pixfader does not have access to config
if (_hovering) {
Gtkmm2ext::rounded_rectangle (cr, 0, 0, get_width(), get_height(), 3);
- cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.2);
+ cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.1);
cairo_fill (cr);
}
// }
PixFader::on_size_request (GtkRequisition* req)
{
if (_orien == VERT) {
- req->width = girth;
- req->height = span;
+ req->width = (girth ? girth : -1);
+ req->height = (span ? span : -1);
} else {
- req->height = girth;
- req->width = span;
+ req->height = (girth ? girth : -1);
+ req->width = (span ? span : -1);
}
}
DrawingArea::on_size_allocate(alloc);
if (_orien == VERT) {
- span = alloc.get_height();
girth = alloc.get_width ();
+ span = alloc.get_height ();
} else {
- span = alloc.get_width();
girth = alloc.get_height ();
+ span = alloc.get_width ();
}
- update_unity_position ();
-
if (is_realized()) {
- create_patterns();
- queue_draw ();
+ /* recreate patterns in case we've changed size */
+ create_patterns ();
}
+
+ update_unity_position ();
}
bool
adjustment.set_value (adjustment.get_value() - adjustment.get_step_increment());
}
}
-
+ return true;
}
break;
dragging = false;
set_adjustment_from_event (ev);
gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ return true;
}
break;
return ds;
}
-void
-PixFader::set_fader_length (int l)
-{
- span = l;
- update_unity_position ();
- queue_draw ();
-}
-
void
PixFader::update_unity_position ()
{
if (_orien == VERT) {
unity_loc = (int) rint (span * (1 - (default_value / (adjustment.get_upper() - adjustment.get_lower())))) - 1;
} else {
- unity_loc = (int) rint (default_value * span);
+ unity_loc = (int) rint (default_value * span / (adjustment.get_upper() - adjustment.get_lower()));
}
queue_draw ();
if (_layout) {
_layout->set_text (str);
+ _layout->get_pixel_size (_text_width, _text_height);
}
queue_resize ();
Widget::on_state_changed (old_state);
create_patterns ();
}
+
+void
+PixFader::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
+{
+ if (_layout) {
+ std::string txt = _layout->get_text();
+ _layout.clear (); // drop reference to existing layout
+ set_text (txt);
+ }
+
+ /* remember that all patterns are cached and not owned by an individual
+ pixfader. we will lazily create a new pattern when needed.
+ */
+
+ pattern = 0;
+}
projects / ardour.git / blobdiff