mirror of
https://github.com/Ardour/ardour.git
synced 2026-01-30 17:03:06 +01:00
change FastMeter drawing implementation to use Cairo instead of GDK; some subtle changes to meter drawing will be visible and are subject to a revisit
git-svn-id: svn://localhost/ardour2/branches/3.0@9919 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis
parent
ff234c0544
commit
9e5a0ad167
2 changed files with 153 additions and 200 deletions
|
|
@ -21,11 +21,16 @@
|
|||
#include <iostream>
|
||||
#include <cmath>
|
||||
#include <algorithm>
|
||||
#include <cstring>
|
||||
|
||||
#include <boost/scoped_array.hpp>
|
||||
|
||||
#include <cairomm/surface.h>
|
||||
|
||||
#include <gdkmm/rectangle.h>
|
||||
#include <gtkmm2ext/fastmeter.h>
|
||||
#include <gtkmm2ext/utils.h>
|
||||
#include <gtkmm/style.h>
|
||||
#include <cstring>
|
||||
|
||||
#define UINT_TO_RGB(u,r,g,b) { (*(r)) = ((u)>>16)&0xff; (*(g)) = ((u)>>8)&0xff; (*(b)) = (u)&0xff; }
|
||||
#define UINT_TO_RGBA(u,r,g,b,a) { UINT_TO_RGB(((u)>>8),r,g,b); (*(a)) = (u)&0xff; }
|
||||
|
|
@ -36,13 +41,11 @@ using namespace Gtkmm2ext;
|
|||
using namespace std;
|
||||
|
||||
|
||||
int FastMeter::min_v_pixbuf_size = 10;
|
||||
int FastMeter::max_v_pixbuf_size = 1024;
|
||||
Glib::RefPtr<Gdk::Pixbuf>* FastMeter::v_pixbuf_cache = 0;
|
||||
int FastMeter::min_pattern_metric_size = 10;
|
||||
int FastMeter::max_pattern_metric_size = 1024;
|
||||
|
||||
int FastMeter::min_h_pixbuf_size = 10;
|
||||
int FastMeter::max_h_pixbuf_size = 1024;
|
||||
Glib::RefPtr<Gdk::Pixbuf>* FastMeter::h_pixbuf_cache = 0;
|
||||
FastMeter::PatternMap FastMeter::v_pattern_cache;
|
||||
FastMeter::PatternMap FastMeter::h_pattern_cache;
|
||||
|
||||
int FastMeter::_clr0 = 0;
|
||||
int FastMeter::_clr1 = 0;
|
||||
|
|
@ -69,18 +72,21 @@ FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o, int len, in
|
|||
pixrect.y = 0;
|
||||
|
||||
if (orientation == Vertical) {
|
||||
if (!len)
|
||||
if (!len) {
|
||||
len = 250;
|
||||
pixbuf = request_vertical_meter(dimen, len);
|
||||
}
|
||||
pattern = request_vertical_meter(dimen, len);
|
||||
pixheight = len;
|
||||
pixwidth = dimen;
|
||||
} else {
|
||||
if (!len)
|
||||
len = 186;
|
||||
pixbuf = request_horizontal_meter(len, dimen);
|
||||
if (!len) {
|
||||
len = 186; // interesting size, eh?
|
||||
}
|
||||
pattern = request_horizontal_meter(len, dimen);
|
||||
pixheight = dimen;
|
||||
pixwidth = len;
|
||||
}
|
||||
|
||||
pixheight = pixbuf->get_height();
|
||||
pixwidth = pixbuf->get_width();
|
||||
|
||||
if (orientation == Vertical) {
|
||||
pixrect.width = min (pixwidth, (gint) dimen);
|
||||
pixrect.height = pixheight;
|
||||
|
|
@ -93,164 +99,95 @@ FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o, int len, in
|
|||
request_height= pixrect.height;
|
||||
}
|
||||
|
||||
Glib::RefPtr<Gdk::Pixbuf> FastMeter::request_vertical_meter(int width, int height)
|
||||
Cairo::RefPtr<Cairo::Pattern>
|
||||
FastMeter::generate_meter_pattern (int width, int height)
|
||||
{
|
||||
if (height < min_v_pixbuf_size)
|
||||
height = min_v_pixbuf_size;
|
||||
if (height > max_v_pixbuf_size)
|
||||
height = max_v_pixbuf_size;
|
||||
|
||||
//int index = height - 1;
|
||||
guint8 r0,g0,b0,r1,g1,b1,r2,g2,b2,r3,g3,b3,a;
|
||||
|
||||
//if (v_pixbuf_cache == 0) {
|
||||
// v_pixbuf_cache = (Glib::RefPtr<Gdk::Pixbuf>*) malloc(sizeof(Glib::RefPtr<Gdk::Pixbuf>) * max_v_pixbuf_size);
|
||||
// memset(v_pixbuf_cache,0,sizeof(Glib::RefPtr<Gdk::Pixbuf>) * max_v_pixbuf_size);
|
||||
//}
|
||||
Glib::RefPtr<Gdk::Pixbuf> ret;// = v_pixbuf_cache[index];
|
||||
//if (ret)
|
||||
// return ret;
|
||||
|
||||
guint8* data;
|
||||
|
||||
data = (guint8*) malloc(width*height * 3);
|
||||
|
||||
guint8 r,g,b,r0,g0,b0,r1,g1,b1,r2,g2,b2,r3,g3,b3,a;
|
||||
/* clr0: color at top of the meter
|
||||
1: color at the knee
|
||||
2: color half-way between bottom and knee
|
||||
3: color at the bottom of the meter
|
||||
*/
|
||||
|
||||
UINT_TO_RGBA (_clr0, &r0, &g0, &b0, &a);
|
||||
UINT_TO_RGBA (_clr1, &r1, &g1, &b1, &a);
|
||||
UINT_TO_RGBA (_clr2, &r2, &g2, &b2, &a);
|
||||
UINT_TO_RGBA (_clr3, &r3, &g3, &b3, &a);
|
||||
|
||||
// fake log calculation copied from log_meter.h
|
||||
// actual calculation:
|
||||
// log_meter(0.0f) =
|
||||
// def = (0.0f + 20.0f) * 2.5f + 50f
|
||||
// return def / 115.0f
|
||||
int knee = (int)floor((float)height * 100.0f / 115.0f);
|
||||
int y;
|
||||
|
||||
for (y = 0; y < knee/2; y++) {
|
||||
const int knee = (int)floor((float)height * 100.0f / 115.0f);
|
||||
cairo_pattern_t* _p = cairo_pattern_create_linear (0.0, 0.0, width, height);
|
||||
|
||||
r = (guint8)floor((float)abs(r1 - r0) * (float)y / (float)(knee/2));
|
||||
(r0 >= r1) ? r = r0 - r : r += r0;
|
||||
|
||||
g = (guint8)floor((float)abs(g1 - g0) * (float)y / (float)(knee/2));
|
||||
(g0 >= g1) ? g = g0 - g : g += g0;
|
||||
/* cairo coordinate space goes downwards as y value goes up, so invert
|
||||
* knee-based positions by using (1.0 - y)
|
||||
*
|
||||
* also, double-stop the knee point, so that we get a hard transition
|
||||
*/
|
||||
|
||||
b = (guint8)floor((float)abs(b1 - b0) * (float)y / (float)(knee/2));
|
||||
(b0 >= b1) ? b = b0 - b : b += b0;
|
||||
cairo_pattern_add_color_stop_rgb (_p, 0.0, r3/255.0, g3/255.0, b3/255.0); // bottom
|
||||
cairo_pattern_add_color_stop_rgb (_p, 1.0 - (knee/(2.0 * height)), r2/255.0, g2/255.0, b2/255.0); // mid-point to knee
|
||||
cairo_pattern_add_color_stop_rgb (_p, 1.0 - (knee/(double)height), r0/255.0, g0/255.0, b0/255.0); // knee
|
||||
cairo_pattern_add_color_stop_rgb (_p, 1.0 - (knee/(double)height), r1/255.0, g1/255.0, b1/255.0); // double-stop @ knee
|
||||
cairo_pattern_add_color_stop_rgb (_p, 1.0, r0/255.0, g0/255.0, b0/255.0); // top
|
||||
|
||||
for (int x = 0; x < width; x++) {
|
||||
data[ (x+(height-y-1)*width) * 3 + 0 ] = r;
|
||||
data[ (x+(height-y-1)*width) * 3 + 1 ] = g;
|
||||
data[ (x+(height-y-1)*width) * 3 + 2 ] = b;
|
||||
}
|
||||
}
|
||||
Cairo::RefPtr<Cairo::Pattern> p (new Cairo::Pattern (_p, false));
|
||||
|
||||
int offset = knee - y;
|
||||
for (int i=0; i < offset; i++,y++) {
|
||||
|
||||
r = (guint8)floor((float)abs(r2 - r1) * (float)i / (float)offset);
|
||||
(r1 >= r2) ? r = r1 - r : r += r1;
|
||||
|
||||
g = (guint8)floor((float)abs(g2 - g1) * (float)i / (float)offset);
|
||||
(g1 >= g2) ? g = g1 - g : g += g1;
|
||||
|
||||
b = (guint8)floor((float)abs(b2 - b1) * (float)i / (float)offset);
|
||||
(b1 >= b2) ? b = b1 - b : b += b1;
|
||||
|
||||
for (int x = 0; x < width; x++) {
|
||||
data[ (x+(height-y-1)*width) * 3 + 0 ] = r;
|
||||
data[ (x+(height-y-1)*width) * 3 + 1 ] = g;
|
||||
data[ (x+(height-y-1)*width) * 3 + 2 ] = b;
|
||||
}
|
||||
}
|
||||
y--;
|
||||
for (; y < height; y++) {
|
||||
for (int x = 0; x < width; x++) {
|
||||
data[ (x+(height-y-1)*width) * 3 + 0 ] = r3;
|
||||
data[ (x+(height-y-1)*width) * 3 + 1 ] = g3;
|
||||
data[ (x+(height-y-1)*width) * 3 + 2 ] = b3;
|
||||
}
|
||||
}
|
||||
|
||||
ret = Pixbuf::create_from_data(data, COLORSPACE_RGB, false, 8, width, height, width * 3);
|
||||
//v_pixbuf_cache[index] = ret;
|
||||
|
||||
return ret;
|
||||
return p;
|
||||
}
|
||||
|
||||
Glib::RefPtr<Gdk::Pixbuf> FastMeter::request_horizontal_meter(int width, int height)
|
||||
Cairo::RefPtr<Cairo::Pattern>
|
||||
FastMeter::request_vertical_meter(int width, int height)
|
||||
{
|
||||
if (width < min_h_pixbuf_size)
|
||||
width = min_h_pixbuf_size;
|
||||
if (width > max_h_pixbuf_size)
|
||||
width = max_h_pixbuf_size;
|
||||
if (height < min_pattern_metric_size)
|
||||
height = min_pattern_metric_size;
|
||||
if (height > max_pattern_metric_size)
|
||||
height = max_pattern_metric_size;
|
||||
|
||||
int index = width - 1;
|
||||
|
||||
if (h_pixbuf_cache == 0) {
|
||||
h_pixbuf_cache = (Glib::RefPtr<Gdk::Pixbuf>*) malloc(sizeof(Glib::RefPtr<Gdk::Pixbuf>) * max_h_pixbuf_size);
|
||||
memset(h_pixbuf_cache,0,sizeof(Glib::RefPtr<Gdk::Pixbuf>) * max_h_pixbuf_size);
|
||||
}
|
||||
Glib::RefPtr<Gdk::Pixbuf> ret = h_pixbuf_cache[index];
|
||||
if (ret)
|
||||
return ret;
|
||||
PatternMap::iterator i;
|
||||
|
||||
guint8* data;
|
||||
|
||||
data = (guint8*) malloc(width*height * 3);
|
||||
|
||||
guint8 r,g,b;
|
||||
r=0;
|
||||
g=255;
|
||||
b=0;
|
||||
|
||||
// fake log calculation copied from log_meter.h
|
||||
// actual calculation:
|
||||
// log_meter(0.0f) =
|
||||
// def = (0.0f + 20.0f) * 2.5f + 50f
|
||||
// return def / 115.0f
|
||||
int knee = (int)floor((float)width * 100.0f / 115.0f);
|
||||
|
||||
int x;
|
||||
|
||||
for (x = 0; x < knee / 2; x++) {
|
||||
|
||||
r = (guint8)floor(255.0 * (float)x/(float)(knee / 2));
|
||||
|
||||
for (int y = 0; y < height; y++) {
|
||||
data[ (x+(height-y-1)*width) * 3 + 0 ] = r;
|
||||
data[ (x+(height-y-1)*width) * 3 + 1 ] = g;
|
||||
data[ (x+(height-y-1)*width) * 3 + 2 ] = b;
|
||||
}
|
||||
}
|
||||
|
||||
for (; x < knee; x++) {
|
||||
|
||||
g = 255 - (guint8)floor(170.0 * (float)(x - knee/ 2)/(float)(knee / 2));
|
||||
|
||||
for (int y = 0; y < height; y++) {
|
||||
data[ (x+(height-y-1)*width) * 3 + 0 ] = r;
|
||||
data[ (x+(height-y-1)*width) * 3 + 1 ] = g;
|
||||
data[ (x+(height-y-1)*width) * 3 + 2 ] = b;
|
||||
}
|
||||
if ((i = v_pattern_cache.find (height)) != v_pattern_cache.end()) {
|
||||
return i->second;
|
||||
}
|
||||
|
||||
r=255;
|
||||
g=0;
|
||||
b=0;
|
||||
for (; x < width; x++) {
|
||||
for (int y = 0; y < height; y++) {
|
||||
data[ (x+(height-y-1)*width) * 3 + 0 ] = r;
|
||||
data[ (x+(height-y-1)*width) * 3 + 1 ] = g;
|
||||
data[ (x+(height-y-1)*width) * 3 + 2 ] = b;
|
||||
}
|
||||
}
|
||||
|
||||
ret = Pixbuf::create_from_data(data, COLORSPACE_RGB, false, 8, width, height, width * 3);
|
||||
h_pixbuf_cache[index] = ret;
|
||||
Cairo::RefPtr<Cairo::Pattern> p = generate_meter_pattern (width, height);
|
||||
v_pattern_cache[height] = p;
|
||||
|
||||
return ret;
|
||||
return p;
|
||||
}
|
||||
|
||||
Cairo::RefPtr<Cairo::Pattern>
|
||||
FastMeter::request_horizontal_meter(int width, int height)
|
||||
{
|
||||
if (width < min_pattern_metric_size)
|
||||
width = min_pattern_metric_size;
|
||||
if (width > max_pattern_metric_size)
|
||||
width = max_pattern_metric_size;
|
||||
|
||||
PatternMap::iterator i;
|
||||
|
||||
if ((i = h_pattern_cache.find (height)) != h_pattern_cache.end()) {
|
||||
return i->second;
|
||||
}
|
||||
|
||||
/* flip height/width so that we get the right pattern */
|
||||
|
||||
Cairo::RefPtr<Cairo::Pattern> p = generate_meter_pattern (height, width);
|
||||
|
||||
/* rotate to make it horizontal */
|
||||
|
||||
cairo_matrix_t m;
|
||||
cairo_matrix_init_rotate (&m, -M_PI/2.0);
|
||||
cairo_pattern_set_matrix (p->cobj(), &m);
|
||||
|
||||
h_pattern_cache[width] = p;
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
FastMeter::~FastMeter ()
|
||||
|
|
@ -277,16 +214,16 @@ FastMeter::on_size_request (GtkRequisition* req)
|
|||
if (orientation == Vertical) {
|
||||
|
||||
req->height = request_height;
|
||||
req->height = max(req->height, min_v_pixbuf_size);
|
||||
req->height = min(req->height, max_v_pixbuf_size);
|
||||
req->height = max(req->height, min_pattern_metric_size);
|
||||
req->height = min(req->height, max_pattern_metric_size);
|
||||
|
||||
req->width = request_width;
|
||||
|
||||
} else {
|
||||
|
||||
req->width = request_width;
|
||||
req->width = max(req->width, min_h_pixbuf_size);
|
||||
req->width = min(req->width, max_h_pixbuf_size);
|
||||
req->width = max(req->width, min_pattern_metric_size);
|
||||
req->width = min(req->width, max_pattern_metric_size);
|
||||
|
||||
req->height = request_height;
|
||||
}
|
||||
|
|
@ -303,14 +240,17 @@ FastMeter::on_size_allocate (Gtk::Allocation &alloc)
|
|||
}
|
||||
|
||||
int h = alloc.get_height();
|
||||
h = max(h, min_v_pixbuf_size);
|
||||
h = min(h, max_v_pixbuf_size);
|
||||
|
||||
if ( h != alloc.get_height())
|
||||
alloc.set_height(h);
|
||||
h = max (h, min_pattern_metric_size);
|
||||
h = min (h, max_pattern_metric_size);
|
||||
|
||||
if (h != alloc.get_height()) {
|
||||
alloc.set_height (h);
|
||||
}
|
||||
|
||||
if (pixheight != h) {
|
||||
pixbuf = request_vertical_meter(request_width, h);
|
||||
pattern = request_vertical_meter (request_width, h);
|
||||
pixheight = h;
|
||||
pixwidth = request_width;
|
||||
}
|
||||
|
||||
} else {
|
||||
|
|
@ -320,21 +260,21 @@ FastMeter::on_size_allocate (Gtk::Allocation &alloc)
|
|||
}
|
||||
|
||||
int w = alloc.get_width();
|
||||
w = max(w, min_h_pixbuf_size);
|
||||
w = min(w, max_h_pixbuf_size);
|
||||
w = max (w, min_pattern_metric_size);
|
||||
w = min (w, max_pattern_metric_size);
|
||||
|
||||
if ( w != alloc.get_width())
|
||||
alloc.set_width(w);
|
||||
if (w != alloc.get_width()) {
|
||||
alloc.set_width (w);
|
||||
}
|
||||
|
||||
if (pixwidth != w) {
|
||||
pixbuf = request_horizontal_meter(w, request_height);
|
||||
pattern = request_horizontal_meter (w, request_height);
|
||||
pixheight = request_height;
|
||||
pixwidth = w;
|
||||
}
|
||||
}
|
||||
|
||||
pixheight = pixbuf->get_height();
|
||||
pixwidth = pixbuf->get_width();
|
||||
|
||||
DrawingArea::on_size_allocate(alloc);
|
||||
DrawingArea::on_size_allocate (alloc);
|
||||
}
|
||||
|
||||
bool
|
||||
|
|
@ -350,10 +290,15 @@ FastMeter::on_expose_event (GdkEventExpose* ev)
|
|||
bool
|
||||
FastMeter::vertical_expose (GdkEventExpose* ev)
|
||||
{
|
||||
Glib::RefPtr<Gdk::Window> win = get_window ();
|
||||
gint top_of_meter;
|
||||
GdkRectangle intersection;
|
||||
GdkRectangle background;
|
||||
|
||||
cairo_t* cr = gdk_cairo_create (get_window ()->gobj());
|
||||
cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
|
||||
cairo_clip (cr);
|
||||
|
||||
top_of_meter = (gint) floor (pixheight * current_level);
|
||||
|
||||
/* reset the height & origin of the rect that needs to show the pixbuf
|
||||
|
|
@ -368,18 +313,16 @@ FastMeter::vertical_expose (GdkEventExpose* ev)
|
|||
background.height = pixheight - top_of_meter;
|
||||
|
||||
if (gdk_rectangle_intersect (&background, &ev->area, &intersection)) {
|
||||
get_window()->draw_rectangle (get_style()->get_black_gc(), true,
|
||||
intersection.x, intersection.y,
|
||||
intersection.width, intersection.height);
|
||||
cairo_set_source_rgb (cr, 0, 0, 0); // black
|
||||
cairo_rectangle (cr, intersection.x, intersection.y, intersection.width, intersection.height);
|
||||
cairo_fill (cr);
|
||||
}
|
||||
|
||||
if (gdk_rectangle_intersect (&pixrect, &ev->area, &intersection)) {
|
||||
// draw the part of the meter image that we need. the area we draw is bounded "in reverse" (top->bottom)
|
||||
get_window()->draw_pixbuf(get_style()->get_fg_gc(get_state()), pixbuf,
|
||||
intersection.x, intersection.y,
|
||||
intersection.x, intersection.y,
|
||||
intersection.width, intersection.height,
|
||||
Gdk::RGB_DITHER_NONE, 0, 0);
|
||||
cairo_set_source (cr, pattern->cobj());
|
||||
cairo_rectangle (cr, intersection.x, intersection.y, intersection.width, intersection.height);
|
||||
cairo_fill (cr);
|
||||
}
|
||||
|
||||
// draw peak bar
|
||||
|
|
@ -390,26 +333,32 @@ FastMeter::vertical_expose (GdkEventExpose* ev)
|
|||
last_peak_rect.y = pixheight - (gint) floor (pixheight * current_peak);
|
||||
last_peak_rect.height = min(3, pixheight - last_peak_rect.y);
|
||||
|
||||
get_window()->draw_pixbuf (get_style()->get_fg_gc(get_state()), pixbuf,
|
||||
0, last_peak_rect.y,
|
||||
0, last_peak_rect.y,
|
||||
pixwidth, last_peak_rect.height,
|
||||
Gdk::RGB_DITHER_NONE, 0, 0);
|
||||
cairo_set_source (cr, pattern->cobj());
|
||||
cairo_rectangle (cr, 0, last_peak_rect.y, pixwidth, last_peak_rect.height);
|
||||
cairo_fill (cr);
|
||||
|
||||
} else {
|
||||
last_peak_rect.width = 0;
|
||||
last_peak_rect.height = 0;
|
||||
}
|
||||
|
||||
cairo_destroy (cr);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
bool
|
||||
FastMeter::horizontal_expose (GdkEventExpose* ev)
|
||||
{
|
||||
Glib::RefPtr<Gdk::Window> win = get_window ();
|
||||
gint right_of_meter;
|
||||
GdkRectangle intersection;
|
||||
GdkRectangle background;
|
||||
|
||||
cairo_t* cr = gdk_cairo_create (get_window ()->gobj());
|
||||
cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
|
||||
cairo_clip (cr);
|
||||
|
||||
right_of_meter = (gint) floor (pixwidth * current_level);
|
||||
pixrect.width = right_of_meter;
|
||||
|
||||
|
|
@ -419,18 +368,19 @@ FastMeter::horizontal_expose (GdkEventExpose* ev)
|
|||
background.height = pixrect.height;
|
||||
|
||||
if (gdk_rectangle_intersect (&background, &ev->area, &intersection)) {
|
||||
get_window()->draw_rectangle (get_style()->get_black_gc(), true,
|
||||
intersection.x + right_of_meter, intersection.y,
|
||||
intersection.width, intersection.height);
|
||||
cairo_set_source_rgb (cr, 0, 0, 0); // black
|
||||
cairo_rectangle (cr, intersection.x + right_of_meter, intersection.y, intersection.width, intersection.height);
|
||||
cairo_fill (cr);
|
||||
}
|
||||
|
||||
|
||||
if (gdk_rectangle_intersect (&pixrect, &ev->area, &intersection)) {
|
||||
// draw the part of the meter image that we need. the area we draw is bounded "in reverse" (top->bottom)
|
||||
get_window()->draw_pixbuf(get_style()->get_fg_gc(get_state()), pixbuf,
|
||||
intersection.x, intersection.y,
|
||||
intersection.x, intersection.y,
|
||||
pixrect.width, intersection.height,
|
||||
Gdk::RGB_DITHER_NONE, 0, 0);
|
||||
cairo_matrix_t m;
|
||||
cairo_matrix_init_translate (&m, -intersection.x, -intersection.y);
|
||||
cairo_pattern_set_matrix (pattern->cobj(), &m);
|
||||
cairo_set_source (cr, pattern->cobj());
|
||||
cairo_rectangle (cr, intersection.x, intersection.y, pixrect.width, intersection.height);
|
||||
cairo_fill (cr);
|
||||
}
|
||||
|
||||
// draw peak bar
|
||||
|
|
@ -446,6 +396,8 @@ FastMeter::horizontal_expose (GdkEventExpose* ev)
|
|||
Gdk::RGB_DITHER_NONE, 0, 0);
|
||||
}
|
||||
*/
|
||||
|
||||
cairo_destroy (cr);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -20,6 +20,9 @@
|
|||
#ifndef __gtkmm2ext_fastmeter_h__
|
||||
#define __gtkmm2ext_fastmeter_h__
|
||||
|
||||
#include <map>
|
||||
#include <cairomm/pattern.h>
|
||||
|
||||
#include <gtkmm/drawingarea.h>
|
||||
#include <gdkmm/pixbuf.h>
|
||||
|
||||
|
|
@ -27,6 +30,7 @@ namespace Gtkmm2ext {
|
|||
|
||||
class FastMeter : public Gtk::DrawingArea {
|
||||
public:
|
||||
typedef std::map<int,Cairo::RefPtr<Cairo::Pattern> > PatternMap;
|
||||
enum Orientation {
|
||||
Horizontal,
|
||||
Vertical
|
||||
|
|
@ -52,7 +56,7 @@ class FastMeter : public Gtk::DrawingArea {
|
|||
|
||||
private:
|
||||
|
||||
Glib::RefPtr<Gdk::Pixbuf> pixbuf;
|
||||
Cairo::RefPtr<Cairo::Pattern> pattern;
|
||||
gint pixheight;
|
||||
gint pixwidth;
|
||||
static int _clr0, _clr1, _clr2, _clr3;
|
||||
|
|
@ -73,17 +77,14 @@ class FastMeter : public Gtk::DrawingArea {
|
|||
void queue_vertical_redraw (const Glib::RefPtr<Gdk::Window>&, float);
|
||||
void queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>&, float);
|
||||
|
||||
static Glib::RefPtr<Gdk::Pixbuf> request_vertical_meter(int w, int h);
|
||||
static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (int width, int height);
|
||||
static Cairo::RefPtr<Cairo::Pattern> request_vertical_meter (int w, int h);
|
||||
static Cairo::RefPtr<Cairo::Pattern> request_horizontal_meter (int w, int h);
|
||||
|
||||
static Glib::RefPtr<Gdk::Pixbuf> *v_pixbuf_cache;
|
||||
static int min_v_pixbuf_size;
|
||||
static int max_v_pixbuf_size;
|
||||
|
||||
static Glib::RefPtr<Gdk::Pixbuf> request_horizontal_meter(int w, int h);
|
||||
|
||||
static Glib::RefPtr<Gdk::Pixbuf> *h_pixbuf_cache;
|
||||
static int min_h_pixbuf_size;
|
||||
static int max_h_pixbuf_size;
|
||||
static PatternMap v_pattern_cache;
|
||||
static PatternMap h_pattern_cache;
|
||||
static int min_pattern_metric_size; // min dimension for axis that displays the meter level
|
||||
static int max_pattern_metric_size; // max dimension for axis that displays the meter level
|
||||
};
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue