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::PatternMap FastMeter::v_pattern_cache;
-FastMeter::PatternMap FastMeter::h_pattern_cache;
+FastMeter::Pattern10Map FastMeter::vm_pattern_cache;
+FastMeter::PatternBgMap FastMeter::vb_pattern_cache;
FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o, int len,
int clr0, int clr1, int clr2, int clr3,
- int bgc0, int bgc1, int bgc2, int bgc3)
+ int clr4, int clr5, int clr6, int clr7,
+ int clr8, int clr9, int bgc0, int bgc1,
+ float stp0, float stp1,
+ float stp2, float stp3
+ )
{
orientation = o;
hold_cnt = hold;
current_level = 0;
last_peak_rect.width = 0;
last_peak_rect.height = 0;
- _clr0 = clr0;
- _clr1 = clr1;
- _clr2 = clr2;
- _clr3 = clr3;
- _bgc0 = bgc0;
- _bgc1 = bgc1;
- _bgc2 = bgc2;
- _bgc3 = bgc3;
+ _clr[0] = clr0;
+ _clr[1] = clr1;
+ _clr[2] = clr2;
+ _clr[3] = clr3;
+ _clr[4] = clr4;
+ _clr[5] = clr5;
+ _clr[6] = clr6;
+ _clr[7] = clr7;
+ _clr[8] = clr8;
+ _clr[9] = clr9;
+
+ _bgc[0] = bgc0;
+ _bgc[1] = bgc1;
+
+ _stp[0] = stp0;
+ _stp[1] = stp1;
+ _stp[2] = stp2;
+ _stp[3] = stp3;
set_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK);
pixrect.x = 1;
pixrect.y = 1;
- if (orientation == Vertical) {
- if (!len) {
- len = 250;
- }
- fgpattern = request_vertical_meter(dimen, len, clr0, clr1, clr2, clr3);
- bgpattern = request_vertical_meter(dimen, len, _bgc0, _bgc1, _bgc2, _bgc3);
- pixheight = len;
- pixwidth = dimen;
- } else {
- if (!len) {
- len = 186; // interesting size, eh?
- }
- fgpattern = request_horizontal_meter(len, dimen, clr0, clr1, clr2, clr3);
- bgpattern = request_horizontal_meter(len, dimen, _bgc0, _bgc1, _bgc2, _bgc3);
- pixheight = dimen;
- pixwidth = len;
+ if (!len) {
+ len = 250;
}
+ fgpattern = request_vertical_meter(dimen, len, _clr, _stp);
+ bgpattern = request_vertical_background (dimen, len, _bgc);
+ pixheight = len;
+ pixwidth = dimen;
- if (orientation == Vertical) {
- pixrect.width = pixwidth;
- pixrect.height = pixheight;
- } else {
- pixrect.width = pixwidth;
- pixrect.height = min (pixheight, (gint) dimen);
- }
+ pixrect.width = pixwidth;
+ pixrect.height = pixheight;
request_width = pixrect.width + 2;
request_height= pixrect.height + 2;
}
+FastMeter::~FastMeter ()
+{
+}
+
Cairo::RefPtr<Cairo::Pattern>
FastMeter::generate_meter_pattern (
- int width, int height, int clr0, int clr1, int clr2, int clr3)
+ int width, int height, int *clr, float *stp)
{
- guint8 r0,g0,b0,r1,g1,b1,r2,g2,b2,r3,g3,b3,a;
-
- /*
- The knee is the hard transition point (e.g. at 0dB where the colors
- change dramatically to make clipping apparent). Thus there are two
- gradients in the pattern, the "normal range" and the "clip range", which
- are separated at the knee point.
-
- clr0: color at bottom of normal range gradient
- clr1: color at top of normal range gradient
- clr2: color at bottom of clip range gradient
- clr3: color at top of clip range gradient
- */
+ guint8 r,g,b,a;
+ double knee;
+ double soft = 1.5 / (double) height;
- 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
-
- const int knee = (int)floor((float)height * 100.0f / 115.0f);
- cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, width, height);
+ cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, height);
/*
Cairo coordinate space goes downwards as y value goes up, so invert
knee-based positions by using (1.0 - y)
*/
- // Clip range top
+ UINT_TO_RGBA (clr[9], &r, &g, &b, &a); // top/clip
cairo_pattern_add_color_stop_rgb (pat, 0.0,
- r3/255.0, g3/255.0, b3/255.0);
+ r/255.0, g/255.0, b/255.0);
+
+ 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) - 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) + soft,
+ r/255.0, g/255.0, b/255.0);
+
+ 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) - 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) + soft,
+ r/255.0, g/255.0, b/255.0);
+
+ 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) - 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) + soft,
+ r/255.0, g/255.0, b/255.0);
+
+ 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) - 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) + 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, 0.2);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1, 0.0, 0.0, 0.0, 0.3);
+
+ 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);
+ }
- // Clip range bottom
- cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
- r2/255.0, g2/255.0, b2/255.0);
+ Cairo::RefPtr<Cairo::Pattern> p (new Cairo::Pattern (pat, false));
+
+ return p;
+}
+
+
+Cairo::RefPtr<Cairo::Pattern>
+FastMeter::generate_meter_background (
+ int width, int height, int *clr)
+{
+ guint8 r0,g0,b0,r1,g1,b1,a;
- // Normal range top (double-stop at knee)
- cairo_pattern_add_color_stop_rgb (pat, 1.0 - (knee/(double)height),
+ cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, width, height);
+
+ UINT_TO_RGBA (clr[0], &r0, &g0, &b0, &a);
+ UINT_TO_RGBA (clr[1], &r1, &g1, &b1, &a);
+
+ cairo_pattern_add_color_stop_rgb (pat, 0.0,
r1/255.0, g1/255.0, b1/255.0);
- // Normal range bottom
cairo_pattern_add_color_stop_rgb (pat, 1.0,
- r0/255.0, g0/255.0, b0/255.0); // top
+ r0/255.0, g0/255.0, b0/255.0);
Cairo::RefPtr<Cairo::Pattern> p (new Cairo::Pattern (pat, false));
Cairo::RefPtr<Cairo::Pattern>
FastMeter::request_vertical_meter(
- int width, int height, int clr0, int clr1, int clr2, int clr3)
+ int width, int height, int *clr, float *stp)
{
if (height < min_pattern_metric_size)
height = min_pattern_metric_size;
if (height > max_pattern_metric_size)
height = max_pattern_metric_size;
- const PatternMapKey key (width, height, clr0, clr1, clr2, clr3);
- PatternMap::iterator i;
- if ((i = v_pattern_cache.find (key)) != v_pattern_cache.end()) {
+ const Pattern10MapKey key (width, height,
+ stp[0], stp[1], stp[2], stp[3],
+ 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, clr0, clr1, clr2, clr3);
- v_pattern_cache[key] = p;
+ width, height, clr, stp);
+ vm_pattern_cache[key] = p;
return p;
}
Cairo::RefPtr<Cairo::Pattern>
-FastMeter::request_horizontal_meter(
- int width, int height, int clr0, int clr1, int clr2, int clr3)
+FastMeter::request_vertical_background(
+ int width, int height, int *bgc)
{
- if (width < min_pattern_metric_size)
- width = min_pattern_metric_size;
- if (width > max_pattern_metric_size)
- width = max_pattern_metric_size;
-
- const PatternMapKey key (width, height, clr0, clr1, clr2, clr3);
- PatternMap::iterator i;
- if ((i = h_pattern_cache.find (key)) != h_pattern_cache.end()) {
+ if (height < min_pattern_metric_size)
+ height = min_pattern_metric_size;
+ if (height > max_pattern_metric_size)
+ height = max_pattern_metric_size;
+
+ const PatternBgMapKey key (width, height, bgc[0], bgc[1]);
+ PatternBgMap::iterator i;
+ if ((i = vb_pattern_cache.find (key)) != vb_pattern_cache.end()) {
return i->second;
}
+ // TODO flush pattern cache if it gets too large
- /* flip height/width so that we get the right pattern */
-
- Cairo::RefPtr<Cairo::Pattern> p = generate_meter_pattern (
- height, width, clr0, clr1, clr2, clr3);
-
- /* 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[key] = p;
+ Cairo::RefPtr<Cairo::Pattern> p = generate_meter_background (
+ width, height, bgc);
+ vb_pattern_cache[key] = p;
return p;
}
-FastMeter::~FastMeter ()
-{
-}
void
FastMeter::set_hold_count (long val)
void
FastMeter::on_size_request (GtkRequisition* req)
{
- if (orientation == Vertical) {
-
- req->height = request_height;
- req->height = max(req->height, min_pattern_metric_size);
- req->height = min(req->height, max_pattern_metric_size);
- req->height += 2;
-
- req->width = request_width;
-
- } else {
-
- req->width = request_width;
- req->width = max(req->width, min_pattern_metric_size);
- req->width = min(req->width, max_pattern_metric_size);
-
- req->height = request_height;
- }
+ req->height = request_height;
+ req->height = max(req->height, min_pattern_metric_size);
+ req->height = min(req->height, max_pattern_metric_size);
+ req->height += 2;
+ req->width = request_width;
}
void
FastMeter::on_size_allocate (Gtk::Allocation &alloc)
{
- if (orientation == Vertical) {
-
- if (alloc.get_width() != request_width) {
- alloc.set_width (request_width);
- }
-
- int h = alloc.get_height();
- h = max (h, min_pattern_metric_size + 2);
- h = min (h, max_pattern_metric_size + 2);
-
- if (h != alloc.get_height()) {
- alloc.set_height (h);
- }
-
- if (pixheight != h) {
- fgpattern = request_vertical_meter (
- request_width, h, _clr0, _clr1, _clr2, _clr3);
- bgpattern = request_vertical_meter (
- request_width, h, _bgc0, _bgc1, _bgc2, _bgc3);
- pixheight = h - 2;
- pixwidth = request_width - 2;
- }
-
- } else {
-
- if (alloc.get_height() != request_height) {
- alloc.set_height(request_height);
- }
+ if (alloc.get_width() != request_width) {
+ alloc.set_width (request_width);
+ }
- int w = alloc.get_width();
- w = max (w, min_pattern_metric_size);
- w = min (w, max_pattern_metric_size);
+ int h = alloc.get_height();
+ h = max (h, min_pattern_metric_size + 2);
+ h = min (h, max_pattern_metric_size + 2);
- if (w != alloc.get_width()) {
- alloc.set_width (w);
- }
+ if (h != alloc.get_height()) {
+ alloc.set_height (h);
+ }
- if (pixwidth != w) {
- fgpattern = request_horizontal_meter (
- w, request_height, _clr0, _clr1, _clr2, _clr3);
- bgpattern = request_horizontal_meter (
- w, request_height, _bgc0, _bgc1, _bgc2, _bgc3);
- pixheight = request_height;
- pixwidth = w;
- }
+ if (pixheight != h) {
+ fgpattern = request_vertical_meter (request_width, h, _clr, _stp);
+ bgpattern = request_vertical_background (request_width, h, _bgc);
+ pixheight = h - 2;
+ pixwidth = request_width - 2;
}
DrawingArea::on_size_allocate (alloc);
bool
FastMeter::on_expose_event (GdkEventExpose* ev)
{
- if (orientation == Vertical) {
- return vertical_expose (ev);
- } else {
- return horizontal_expose (ev);
- }
+ return vertical_expose (ev);
}
bool
last_peak_rect.x = 1;
last_peak_rect.width = pixwidth;
last_peak_rect.y = 1 + pixheight - (gint) floor (pixheight * current_peak);
- last_peak_rect.height = min(3, pixheight - last_peak_rect.y);
+ last_peak_rect.height = min(2, pixheight - last_peak_rect.y);
cairo_set_source (cr, fgpattern->cobj());
cairo_rectangle (cr, 1, last_peak_rect.y, pixwidth, last_peak_rect.height);
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;
-
- background.x = 0;
- background.y = 0;
- background.width = pixwidth - right_of_meter;
- background.height = pixrect.height;
-
- if (gdk_rectangle_intersect (&background, &ev->area, &intersection)) {
- 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)
- cairo_matrix_t m;
- cairo_matrix_init_translate (&m, -intersection.x, -intersection.y);
- cairo_pattern_set_matrix (fgpattern->cobj(), &m);
- cairo_set_source (cr, fgpattern->cobj());
- cairo_rectangle (cr, intersection.x, intersection.y, pixrect.width, intersection.height);
- cairo_fill (cr);
- }
-
- // draw peak bar
- // XXX: peaks don't work properly
- /*
- if (hold_state && intersection.height > 0) {
- gint x = (gint) floor(pixwidth * current_peak);
-
- get_window()->draw_pixbuf (get_style()->get_fg_gc(get_state()), pixbuf,
- x, intersection.y,
- x, intersection.y,
- 3, intersection.height,
- Gdk::RGB_DITHER_NONE, 0, 0);
- }
- */
-
- cairo_destroy (cr);
-
- return true;
-}
-
void
FastMeter::set (float lvl)
{
return;
}
- if (orientation == Vertical) {
- queue_vertical_redraw (win, old_level);
- } else {
- queue_horizontal_redraw (win, old_level);
- }
+ queue_vertical_redraw (win, old_level);
}
void
}
}
-void
-FastMeter::queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>& /*win*/, float /*old_level*/)
-{
- /* XXX OPTIMIZE (when we have some horizontal meters) */
- queue_draw ();
-}
-
void
FastMeter::clear ()
{
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