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add shade gradient to meter

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This commit is contained in:
Robin Gareus
2013-07-05 04:54:15 +02:00
parent c38898f1a6
commit 580cec03ad
2 changed files with 53 additions and 24 deletions
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20
gtk2_ardour/ardour3_ui_default.conf
View File

@@ -51,16 +51,16 @@
<Option name="measure line bar" value="ffffff9c"/>
<Option name="measure line beat" value="a29e9e76"/>
<Option name="meter bar" value="626470cc"/>
<Option name="meter fill: 0" value="008840ff"/>
<Option name="meter fill: 1" value="008840ff"/>
<Option name="meter fill: 2" value="00ff40ff"/>
<Option name="meter fill: 3" value="00ff40ff"/>
<Option name="meter fill: 4" value="fff040ff"/>
<Option name="meter fill: 5" value="fff040ff"/>
<Option name="meter fill: 6" value="ff8040ff"/>
<Option name="meter fill: 7" value="ff8040ff"/>
<Option name="meter fill: 8" value="ff0040ff"/>
<Option name="meter fill: 9" value="ff0040ff"/>
<Option name="meter fill: 0" value="008800ff"/>
<Option name="meter fill: 1" value="008800ff"/>
<Option name="meter fill: 2" value="00ff00ff"/>
<Option name="meter fill: 3" value="00ff00ff"/>
<Option name="meter fill: 4" value="fff000ff"/>
<Option name="meter fill: 5" value="fff000ff"/>
<Option name="meter fill: 6" value="ff8000ff"/>
<Option name="meter fill: 7" value="ff8000ff"/>
<Option name="meter fill: 8" value="ff0000ff"/>
<Option name="meter fill: 9" value="ff0000ff"/>
<Option name="meter background: bottom" value="333333ff"/>
<Option name="meter background: top" value="444444ff"/>
<Option name="midi meter fill: 0" value="effaa1ff"/>

57
libs/gtkmm2ext/fastmeter.cc
View File

@@ -35,7 +35,7 @@ using namespace Glib;
using namespace Gtkmm2ext;
using namespace std;
int FastMeter::min_pattern_metric_size = 10;
int FastMeter::min_pattern_metric_size = 16;
int FastMeter::max_pattern_metric_size = 1024;
FastMeter::Pattern10Map FastMeter::vm_pattern_cache;
@@ -106,7 +106,8 @@ FastMeter::generate_meter_pattern (
int width, int height, int *clr, float *stp)
{
guint8 r,g,b,a;
int knee;
double knee;
double soft = 1.5 / (double) height;
cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, height);
@@ -119,50 +120,75 @@ FastMeter::generate_meter_pattern (
cairo_pattern_add_color_stop_rgb (pat, 0.0,
r/255.0, g/255.0, b/255.0);
knee = (int)floor((float)height * stp[3] / 115.0f); // -0dB
knee = ((float)height * stp[3] / 115.0f); // -0dB
UINT_TO_RGBA (clr[8], &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height) - soft,
r/255.0, g/255.0, b/255.0);
UINT_TO_RGBA (clr[7], &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height) + soft,
r/255.0, g/255.0, b/255.0);
knee = (int)floor((float)height * stp[2]/ 115.0f); // -3dB || -2dB
knee = ((float)height * stp[2]/ 115.0f); // -3dB || -2dB
UINT_TO_RGBA (clr[6], &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height) - soft,
r/255.0, g/255.0, b/255.0);
UINT_TO_RGBA (clr[5], &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height) + soft,
r/255.0, g/255.0, b/255.0);
knee = (int)floor((float)height * stp[1] / 115.0f); // -9dB
knee = ((float)height * stp[1] / 115.0f); // -9dB
UINT_TO_RGBA (clr[4], &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height) - soft,
r/255.0, g/255.0, b/255.0);
UINT_TO_RGBA (clr[3], &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height) + soft,
r/255.0, g/255.0, b/255.0);
knee = (int)floor((float)height * stp[0] / 115.0f); // -18dB
knee = ((float)height * stp[0] / 115.0f); // -18dB
UINT_TO_RGBA (clr[2], &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height) - soft,
r/255.0, g/255.0, b/255.0);
UINT_TO_RGBA (clr[1], &r, &g, &b, &a);
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height) + soft,
r/255.0, g/255.0, b/255.0);
UINT_TO_RGBA (clr[0], &r, &g, &b, &a); // bottom
cairo_pattern_add_color_stop_rgb (pat, 1.0,
r/255.0, g/255.0, b/255.0);
if (1) { // TODO Config->get_meter_shade()
cairo_pattern_t* shade_pattern = cairo_pattern_create_linear (0.0, 0.0, width, 0.0);
cairo_pattern_add_color_stop_rgba (shade_pattern, 0, 1.0, 1.0, 1.0, 0.3);
cairo_pattern_add_color_stop_rgba (shade_pattern, 1, 0.0, 0.0, 0.0, 0.5);
cairo_surface_t* surface;
cairo_t* tc = 0;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
tc = cairo_create (surface);
cairo_set_source (tc, pat);
cairo_rectangle (tc, 0, 0, width, height);
cairo_fill (tc);
cairo_set_source (tc, shade_pattern);
cairo_rectangle (tc, 0, 0, width, height);
cairo_fill (tc);
cairo_pattern_destroy (pat);
cairo_pattern_destroy (shade_pattern);
pat = cairo_pattern_create_for_surface (surface);
cairo_destroy (tc);
cairo_surface_destroy (surface);
}
Cairo::RefPtr<Cairo::Pattern> p (new Cairo::Pattern (pat, false));
return p;
@@ -205,10 +231,12 @@ FastMeter::request_vertical_meter(
clr[0], clr[1], clr[2], clr[3],
clr[4], clr[5], clr[6], clr[7],
clr[8], clr[9]);
Pattern10Map::iterator i;
if ((i = vm_pattern_cache.find (key)) != vm_pattern_cache.end()) {
return i->second;
}
// TODO flush pattern cache if it gets too large
Cairo::RefPtr<Cairo::Pattern> p = generate_meter_pattern (
width, height, clr, stp);
@@ -231,6 +259,7 @@ FastMeter::request_vertical_background(
if ((i = vb_pattern_cache.find (key)) != vb_pattern_cache.end()) {
return i->second;
}
// TODO flush pattern cache if it gets too large
Cairo::RefPtr<Cairo::Pattern> p = generate_meter_background (
width, height, bgc);