#include <gtkmm2ext/fastmeter.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm/style.h>
-#include <string.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; }
using namespace Gtk;
using namespace Gdk;
using namespace Glib;
using namespace std;
-int FastMeter::min_v_pixbuf_size = 50;
+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_h_pixbuf_size = 50;
+int FastMeter::min_h_pixbuf_size = 10;
int FastMeter::max_h_pixbuf_size = 1024;
Glib::RefPtr<Gdk::Pixbuf>* FastMeter::h_pixbuf_cache = 0;
+int FastMeter::_clr0 = 0;
+int FastMeter::_clr1 = 0;
+int FastMeter::_clr2 = 0;
+int FastMeter::_clr3 = 0;
-FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o)
+FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o, int len, int clr0, int clr1, int clr2, int clr3)
{
orientation = o;
hold_cnt = hold;
hold_state = 0;
current_peak = 0;
current_level = 0;
-
+ last_peak_rect.width = 0;
+ last_peak_rect.height = 0;
+ _clr0 = clr0;
+ _clr1 = clr1;
+ _clr2 = clr2;
+ _clr3 = clr3;
+
set_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK);
pixrect.x = 0;
pixrect.y = 0;
if (orientation == Vertical) {
- pixbuf = request_vertical_meter(dimen, 250);
+ if (!len)
+ len = 250;
+ pixbuf = request_vertical_meter(dimen, len);
} else {
- pixbuf = request_horizontal_meter(186, dimen);
+ if (!len)
+ len = 186;
+ pixbuf = request_horizontal_meter(len, dimen);
}
pixheight = pixbuf->get_height();
if (height > max_v_pixbuf_size)
height = max_v_pixbuf_size;
- int index = height - 1;
+ //int index = height - 1;
- 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;
+ //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;
- r=0;
- g=255;
- b=0;
+ guint8 r,g,b,r0,g0,b0,r1,g1,b1,r2,g2,b2,r3,g3,b3,a;
+
+ 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++) {
- r = (guint8)floor(255.0 * (float)y/(float)(knee / 2));
-
+ for (y = 0; y < knee/2; y++) {
+
+ 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;
+
+ b = (guint8)floor((float)abs(b1 - b0) * (float)y / (float)(knee/2));
+ (b0 >= b1) ? b = b0 - b : b += b0;
+
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;
}
}
-
- for (; y < knee; y++) {
- g = 255 - (guint8)floor(170.0 * (float)(y - knee/ 2)/(float)(knee / 2));
-
+ 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;
}
}
-
- r=255;
- g=0;
- b=0;
+ y--;
for (; y < height; y++) {
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;
+ 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;
+ //v_pixbuf_cache[index] = ret;
return ret;
}
GdkRectangle background;
top_of_meter = (gint) floor (pixheight * current_level);
+
+ /* reset the height & origin of the rect that needs to show the pixbuf
+ */
+
pixrect.height = top_of_meter;
+ pixrect.y = pixheight - top_of_meter;
background.x = 0;
background.y = 0;
background.width = pixrect.width;
background.height = pixheight - top_of_meter;
- if (gdk_rectangle_intersect (&background, &ev->area, &intersection)) {
+ 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);
}
-
+
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, pixheight - top_of_meter,
- intersection.x, pixheight - top_of_meter,
+ intersection.x, intersection.y,
+ intersection.x, intersection.y,
intersection.width, intersection.height,
Gdk::RGB_DITHER_NONE, 0, 0);
}
// draw peak bar
- if (hold_state && intersection.width > 0) {
- gint y = pixheight - (gint) floor (pixheight * current_peak);
- int h = min(3, pixheight - y);
+
+ if (hold_state) {
+ last_peak_rect.x = 0;
+ last_peak_rect.width = pixwidth;
+ 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,
- intersection.x, y,
- intersection.x, y,
- intersection.width, h,
+ 0, last_peak_rect.y,
+ 0, last_peak_rect.y,
+ pixwidth, last_peak_rect.height,
Gdk::RGB_DITHER_NONE, 0, 0);
+ } else {
+ last_peak_rect.width = 0;
+ last_peak_rect.height = 0;
}
return TRUE;
background.width = pixwidth - right_of_meter;
background.height = pixrect.height;
- if (gdk_rectangle_intersect (&background, &ev->area, &intersection)) {
+ 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);
get_window()->draw_pixbuf(get_style()->get_fg_gc(get_state()), pixbuf,
intersection.x, intersection.y,
intersection.x, intersection.y,
- intersection.width, intersection.height,
+ pixrect.width, intersection.height,
Gdk::RGB_DITHER_NONE, 0, 0);
}
void
FastMeter::set (float lvl)
{
+ float old_level = current_level;
+ float old_peak = current_peak;
+
current_level = lvl;
if (lvl > current_peak) {
}
}
+ if (current_level == old_level && current_peak == old_peak && hold_state == 0) {
+ return;
+ }
+
+
+ Glib::RefPtr<Gdk::Window> win;
+
+ if ((win = get_window()) == 0) {
+ queue_draw ();
+ return;
+ }
+
+ if (orientation == Vertical) {
+ queue_vertical_redraw (win, old_level);
+ } else {
+ queue_horizontal_redraw (win, old_level);
+ }
+}
+
+void
+FastMeter::queue_vertical_redraw (const Glib::RefPtr<Gdk::Window>& win, float old_level)
+{
+ GdkRectangle rect;
+
+ gint new_top = (gint) floor (pixheight * current_level);
+
+ rect.x = 0;
+ rect.width = pixwidth;
+ rect.height = new_top;
+ rect.y = pixheight - new_top;
+
+ if (current_level > old_level) {
+ /* colored/pixbuf got larger, just draw the new section */
+ /* rect.y stays where it is because of X coordinates */
+ /* height of invalidated area is between new.y (smaller) and old.y
+ (larger).
+ X coordinates just make my brain hurt.
+ */
+ rect.height = pixrect.y - rect.y;
+ } else {
+ /* it got smaller, compute the difference */
+ /* rect.y becomes old.y (the smaller value) */
+ rect.y = pixrect.y;
+ /* rect.height is the old.y (smaller) minus the new.y (larger)
+ */
+ rect.height = pixrect.height - rect.height;
+ }
+
+ GdkRegion* region = 0;
+ bool queue = false;
+
+ if (rect.height != 0) {
+
+ /* ok, first region to draw ... */
+
+ region = gdk_region_rectangle (&rect);
+ queue = true;
+ }
+
+ /* redraw the last place where the last peak hold bar was;
+ the next expose will draw the new one whether its part of
+ expose region or not.
+ */
+
+ if (last_peak_rect.width * last_peak_rect.height != 0) {
+ if (!queue) {
+ region = gdk_region_new ();
+ queue = true;
+ }
+ gdk_region_union_with_rect (region, &last_peak_rect);
+ }
+
+ if (queue) {
+ gdk_window_invalidate_region (win->gobj(), region, true);
+ }
+ if (region) {
+ gdk_region_destroy(region);
+ region = 0;
+ }
+}
+
+void
+FastMeter::queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>& /*win*/, float /*old_level*/)
+{
+ /* XXX OPTIMIZE (when we have some horizontal meters) */
queue_draw ();
}
projects / ardour.git / blobdiff