#include <algorithm>
#include <cstring>
+#include <stdlib.h>
+
+#include <glibmm.h>
+#include <gdkmm.h>
#include <gdkmm/rectangle.h>
#include <gtkmm2ext/fastmeter.h>
#include <gtkmm2ext/utils.h>
#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 Gtkmm2ext;
using namespace std;
int FastMeter::min_pattern_metric_size = 16;
int FastMeter::max_pattern_metric_size = 1024;
+bool FastMeter::no_rgba_overlay = false;
FastMeter::Pattern10Map FastMeter::vm_pattern_cache;
FastMeter::PatternBgMap FastMeter::vb_pattern_cache;
+FastMeter::Pattern10Map FastMeter::hm_pattern_cache;
+FastMeter::PatternBgMap FastMeter::hb_pattern_cache;
+
FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o, int len,
int clr0, int clr1, int clr2, int clr3,
int clr4, int clr5, int clr6, int clr7,
- int clr8, int clr9, int bgc0, int bgc1,
+ int clr8, int clr9,
+ int bgc0, int bgc1,
+ int bgh0, int bgh1,
float stp0, float stp1,
- float stp2, float stp3
+ float stp2, float stp3,
+ int styleflags
)
+ : pixheight(0)
+ , pixwidth(0)
+ , _styleflags(styleflags)
+ , orientation(o)
+ , hold_cnt(hold)
+ , hold_state(0)
+ , bright_hold(false)
+ , current_level(0)
+ , current_peak(0)
+ , highlight(false)
{
- orientation = o;
- hold_cnt = hold;
- resized = true;
- hold_state = 0;
- current_peak = 0;
- current_level = 0;
last_peak_rect.width = 0;
last_peak_rect.height = 0;
+ last_peak_rect.x = 0;
+ last_peak_rect.y = 0;
+
+ no_rgba_overlay = ! Glib::getenv("NO_METER_SHADE").empty();
_clr[0] = clr0;
_clr[1] = clr1;
_bgc[0] = bgc0;
_bgc[1] = bgc1;
+ _bgh[0] = bgh0;
+ _bgh[1] = bgh1;
+
_stp[0] = stp0;
_stp[1] = stp1;
_stp[2] = stp2;
_stp[3] = stp3;
- set_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK);
+ set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
pixrect.x = 1;
pixrect.y = 1;
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) {
+ pixheight = len;
+ pixwidth = dimen;
+ fgpattern = request_vertical_meter(pixwidth + 2, pixheight + 2, _clr, _stp, _styleflags);
+ bgpattern = request_vertical_background (pixwidth + 2, pixheight + 2, _bgc, false);
+
+ } else {
+ pixheight = dimen;
+ pixwidth = len;
+ fgpattern = request_horizontal_meter(pixwidth + 2, pixheight + 2, _clr, _stp, _styleflags);
+ bgpattern = request_horizontal_background (pixwidth + 2, pixheight + 2, _bgc, false);
+ }
pixrect.width = pixwidth;
pixrect.height = pixheight;
request_width = pixrect.width + 2;
request_height= pixrect.height + 2;
+
+ clear ();
}
FastMeter::~FastMeter ()
Cairo::RefPtr<Cairo::Pattern>
FastMeter::generate_meter_pattern (
- int width, int height, int *clr, float *stp)
+ int width, int height, int *clr, float *stp, int styleflags, bool horiz)
{
guint8 r,g,b,a;
double knee;
- double soft = 1.5 / (double) height;
+ const double soft = 3.0 / (double) height;
+ const double offs = -1.0 / (double) height;
cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, height);
cairo_pattern_add_color_stop_rgb (pat, 0.0,
r/255.0, g/255.0, b/255.0);
- knee = ((float)height * stp[3] / 115.0f); // -0dB
+ knee = offs + 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,
+ cairo_pattern_add_color_stop_rgb (pat, 1.0 - knee,
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,
+ cairo_pattern_add_color_stop_rgb (pat, 1.0 - knee + soft,
r/255.0, g/255.0, b/255.0);
- knee = ((float)height * stp[2]/ 115.0f); // -3dB || -2dB
+ knee = offs + 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,
+ cairo_pattern_add_color_stop_rgb (pat, 1.0 - knee,
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,
+ cairo_pattern_add_color_stop_rgb (pat, 1.0 - knee + soft,
r/255.0, g/255.0, b/255.0);
- knee = ((float)height * stp[1] / 115.0f); // -9dB
+ knee = offs + 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,
+ cairo_pattern_add_color_stop_rgb (pat, 1.0 - knee,
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,
+ cairo_pattern_add_color_stop_rgb (pat, 1.0 - knee + soft,
r/255.0, g/255.0, b/255.0);
- knee = ((float)height * stp[0] / 115.0f); // -18dB
+ knee = offs + 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,
+ cairo_pattern_add_color_stop_rgb (pat, 1.0 - knee,
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,
+ cairo_pattern_add_color_stop_rgb (pat, 1.0 - knee + 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()
+ if ((styleflags & 1) && !no_rgba_overlay) {
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_pattern_add_color_stop_rgba (shade_pattern, 0, 0.0, 0.0, 0.0, 0.15);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0.4, 1.0, 1.0, 1.0, 0.05);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1, 0.0, 0.0, 0.0, 0.25);
cairo_surface_t* surface;
cairo_t* tc = 0;
cairo_set_source (tc, pat);
cairo_rectangle (tc, 0, 0, width, height);
cairo_fill (tc);
+ cairo_pattern_destroy (pat);
+
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);
+ if (styleflags & 2) { // LED stripes
+ cairo_save (tc);
+ cairo_set_line_width(tc, 1.0);
+ cairo_set_source_rgba(tc, .0, .0, .0, 0.4);
+ //cairo_set_operator (tc, CAIRO_OPERATOR_SOURCE);
+ for (float y=0.5; y < height; y+= 2.0) {
+ cairo_move_to(tc, 0, y);
+ cairo_line_to(tc, width, y);
+ cairo_stroke (tc);
+ }
+ cairo_restore (tc);
+ }
+ pat = cairo_pattern_create_for_surface (surface);
cairo_destroy (tc);
cairo_surface_destroy (surface);
}
+ if (horiz) {
+ cairo_surface_t* surface;
+ cairo_t* tc = 0;
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, height, width);
+ tc = cairo_create (surface);
+
+ cairo_matrix_t m;
+ cairo_matrix_init_rotate (&m, -M_PI/2.0);
+ cairo_matrix_translate (&m, -height, 0);
+ cairo_pattern_set_matrix (pat, &m);
+ cairo_set_source (tc, pat);
+ cairo_rectangle (tc, 0, 0, height, width);
+ cairo_fill (tc);
+ cairo_pattern_destroy (pat);
+ 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;
Cairo::RefPtr<Cairo::Pattern>
FastMeter::generate_meter_background (
- int width, int height, int *clr)
+ int width, int height, int *clr, bool shade, bool horiz)
{
guint8 r0,g0,b0,r1,g1,b1,a;
- 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);
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, 1.0,
r0/255.0, g0/255.0, b0/255.0);
+ if (shade && !no_rgba_overlay) {
+ cairo_pattern_t* shade_pattern = cairo_pattern_create_linear (0.0, 0.0, width, 0.0);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0.0, 1.0, 1.0, 1.0, 0.15);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 0.6, 0.0, 0.0, 0.0, 0.10);
+ cairo_pattern_add_color_stop_rgba (shade_pattern, 1.0, 1.0, 1.0, 1.0, 0.20);
+
+ 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);
+ }
+
+ if (horiz) {
+ cairo_surface_t* surface;
+ cairo_t* tc = 0;
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, height, width);
+ tc = cairo_create (surface);
+
+ cairo_matrix_t m;
+ cairo_matrix_init_rotate (&m, -M_PI/2.0);
+ cairo_matrix_translate (&m, -height, 0);
+ cairo_pattern_set_matrix (pat, &m);
+ cairo_set_source (tc, pat);
+ cairo_rectangle (tc, 0, 0, height, width);
+ cairo_fill (tc);
+ cairo_pattern_destroy (pat);
+ 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;
Cairo::RefPtr<Cairo::Pattern>
FastMeter::request_vertical_meter(
- int width, int height, int *clr, float *stp)
+ int width, int height, int *clr, float *stp, int styleflags)
{
- if (height < min_pattern_metric_size)
- height = min_pattern_metric_size;
- if (height > max_pattern_metric_size)
- height = max_pattern_metric_size;
+ height = max(height, min_pattern_metric_size);
+ height = min(height, max_pattern_metric_size);
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]);
+ clr[8], clr[9], styleflags);
Pattern10Map::iterator i;
if ((i = vm_pattern_cache.find (key)) != vm_pattern_cache.end()) {
// TODO flush pattern cache if it gets too large
Cairo::RefPtr<Cairo::Pattern> p = generate_meter_pattern (
- width, height, clr, stp);
+ width, height, clr, stp, styleflags, false);
vm_pattern_cache[key] = p;
return p;
Cairo::RefPtr<Cairo::Pattern>
FastMeter::request_vertical_background(
- int width, int height, int *bgc)
+ int width, int height, int *bgc, bool shade)
{
- if (height < min_pattern_metric_size)
- height = min_pattern_metric_size;
- if (height > max_pattern_metric_size)
- height = max_pattern_metric_size;
+ height = max(height, min_pattern_metric_size);
+ height = min(height, max_pattern_metric_size);
+ height += 2;
- const PatternBgMapKey key (width, height, bgc[0], bgc[1]);
+ const PatternBgMapKey key (width, height, bgc[0], bgc[1], shade);
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
Cairo::RefPtr<Cairo::Pattern> p = generate_meter_background (
- width, height, bgc);
+ width, height, bgc, shade, false);
vb_pattern_cache[key] = p;
return p;
}
+Cairo::RefPtr<Cairo::Pattern>
+FastMeter::request_horizontal_meter(
+ int width, int height, int *clr, float *stp, int styleflags)
+{
+ width = max(width, min_pattern_metric_size);
+ width = min(width, max_pattern_metric_size);
+
+ 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], styleflags);
+
+ Pattern10Map::iterator i;
+ if ((i = hm_pattern_cache.find (key)) != hm_pattern_cache.end()) {
+ return i->second;
+ }
+ // TODO flush pattern cache if it gets too large
+
+ Cairo::RefPtr<Cairo::Pattern> p = generate_meter_pattern (
+ height, width, clr, stp, styleflags, true);
+
+ hm_pattern_cache[key] = p;
+ return p;
+}
+
+Cairo::RefPtr<Cairo::Pattern>
+FastMeter::request_horizontal_background(
+ int width, int height, int *bgc, bool shade)
+{
+ width = max(width, min_pattern_metric_size);
+ width = min(width, max_pattern_metric_size);
+ width += 2;
+
+ const PatternBgMapKey key (width, height, bgc[0], bgc[1], shade);
+ PatternBgMap::iterator i;
+ if ((i = hb_pattern_cache.find (key)) != hb_pattern_cache.end()) {
+ return i->second;
+ }
+ // TODO flush pattern cache if it gets too large
+
+ Cairo::RefPtr<Cairo::Pattern> p = generate_meter_background (
+ height, width, bgc, shade, true);
+
+ hb_pattern_cache[key] = p;
+
+ return p;
+}
+
+
void
FastMeter::set_hold_count (long val)
void
FastMeter::on_size_request (GtkRequisition* req)
+{
+ if (orientation == Vertical) {
+ vertical_size_request (req);
+ } else {
+ horizontal_size_request (req);
+ }
+}
+
+void
+FastMeter::vertical_size_request (GtkRequisition* req)
{
req->height = request_height;
req->height = max(req->height, min_pattern_metric_size);
req->width = request_width;
}
+void
+FastMeter::horizontal_size_request (GtkRequisition* req)
+{
+ req->width = request_width;
+ req->width = max(req->width, min_pattern_metric_size);
+ req->width = min(req->width, max_pattern_metric_size);
+ req->width += 2;
+
+ req->height = request_height;
+}
+
void
FastMeter::on_size_allocate (Gtk::Allocation &alloc)
+{
+ if (orientation == Vertical) {
+ vertical_size_allocate (alloc);
+ } else {
+ horizontal_size_allocate (alloc);
+ }
+ queue_draw ();
+}
+
+void
+FastMeter::vertical_size_allocate (Gtk::Allocation &alloc)
{
if (alloc.get_width() != request_width) {
alloc.set_width (request_width);
}
if (pixheight != h) {
- fgpattern = request_vertical_meter (request_width, h, _clr, _stp);
- bgpattern = request_vertical_background (request_width, h, _bgc);
+ fgpattern = request_vertical_meter (request_width, h, _clr, _stp, _styleflags);
+ bgpattern = request_vertical_background (request_width, h, highlight ? _bgh : _bgc, highlight);
pixheight = h - 2;
pixwidth = request_width - 2;
}
DrawingArea::on_size_allocate (alloc);
- resized = true;
+}
+
+void
+FastMeter::horizontal_size_allocate (Gtk::Allocation &alloc)
+{
+ if (alloc.get_height() != request_height) {
+ alloc.set_height (request_height);
+ }
+
+ int w = alloc.get_width();
+ w = max (w, min_pattern_metric_size + 2);
+ w = min (w, max_pattern_metric_size + 2);
+
+ if (w != alloc.get_width()) {
+ alloc.set_width (w);
+ }
+
+ if (pixwidth != w) {
+ fgpattern = request_horizontal_meter (w, request_height, _clr, _stp, _styleflags);
+ bgpattern = request_horizontal_background (w, request_height, highlight ? _bgh : _bgc, highlight);
+ pixwidth = w - 2;
+ pixheight = request_height - 2;
+ }
+
+ DrawingArea::on_size_allocate (alloc);
}
bool
FastMeter::on_expose_event (GdkEventExpose* ev)
{
- return vertical_expose (ev);
+ if (orientation == Vertical) {
+ return vertical_expose (ev);
+ } else {
+ return horizontal_expose (ev);
+ }
}
bool
cairo_t* cr = gdk_cairo_create (get_window ()->gobj());
- if (resized) {
- cairo_set_source_rgb (cr, 0, 0, 0); // black
- rounded_rectangle (cr, 0, 0, pixrect.width + 2, pixheight + 2, 2);
- cairo_fill (cr);
- }
-
cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
cairo_clip (cr);
+ cairo_set_source_rgb (cr, 0, 0, 0); // black
+ rounded_rectangle (cr, 0, 0, pixwidth + 2, pixheight + 2, 2);
+ cairo_stroke (cr);
+
top_of_meter = (gint) floor (pixheight * current_level);
/* reset the height & origin of the rect that needs to show the pixbuf
if (hold_state) {
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(2, pixheight - last_peak_rect.y);
+ last_peak_rect.y = max(1, 1 + pixheight - (gint) floor (pixheight * current_peak));
+ if (bright_hold || (_styleflags & 2)) {
+ last_peak_rect.height = max(0, min(3, pixheight - last_peak_rect.y - 1 ));
+ } else {
+ last_peak_rect.height = max(0, min(2, pixheight - last_peak_rect.y - 1 ));
+ }
cairo_set_source (cr, fgpattern->cobj());
- cairo_rectangle (cr, 1, last_peak_rect.y, pixwidth, last_peak_rect.height);
+ cairo_rectangle (cr, last_peak_rect.x, last_peak_rect.y, last_peak_rect.width, last_peak_rect.height);
+
+ if (bright_hold && !no_rgba_overlay) {
+ cairo_fill_preserve (cr);
+ cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.3);
+ }
+ 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);
+
+ cairo_set_source_rgb (cr, 0, 0, 0); // black
+ rounded_rectangle (cr, 0, 0, pixwidth + 2, pixheight + 2, 2);
+ cairo_stroke (cr);
+
+ right_of_meter = (gint) floor (pixwidth * current_level);
+
+ /* reset the height & origin of the rect that needs to show the pixbuf
+ */
+
+ pixrect.width = right_of_meter;
+
+ background.x = 1 + right_of_meter;
+ background.y = 1;
+ background.width = pixwidth - right_of_meter;
+ background.height = pixheight;
+
+ if (gdk_rectangle_intersect (&background, &ev->area, &intersection)) {
+ cairo_set_source (cr, bgpattern->cobj());
+ cairo_rectangle (cr, intersection.x, intersection.y, intersection.width, intersection.height);
+ cairo_fill (cr);
+ }
+
+ if (gdk_rectangle_intersect (&pixrect, &ev->area, &intersection)) {
+ cairo_set_source (cr, fgpattern->cobj());
+ cairo_rectangle (cr, intersection.x, intersection.y, intersection.width, intersection.height);
+ cairo_fill (cr);
+ }
+
+ // draw peak bar
+
+ if (hold_state) {
+ last_peak_rect.y = 1;
+ last_peak_rect.height = pixheight;
+ const int xpos = floor (pixwidth * current_peak);
+ if (bright_hold || (_styleflags & 2)) {
+ last_peak_rect.width = min(3, xpos );
+ } else {
+ last_peak_rect.width = min(2, xpos );
+ }
+ last_peak_rect.x = 1 + max(0, xpos - last_peak_rect.width);
+
+ cairo_set_source (cr, fgpattern->cobj());
+ cairo_rectangle (cr, last_peak_rect.x, last_peak_rect.y, last_peak_rect.width, last_peak_rect.height);
+
+ if (bright_hold && !no_rgba_overlay) {
+ cairo_fill_preserve (cr);
+ cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.3);
+ }
cairo_fill (cr);
} else {
}
void
-FastMeter::set (float lvl)
+FastMeter::set (float lvl, float peak)
{
float old_level = current_level;
float old_peak = current_peak;
- current_level = lvl;
-
- if (lvl > current_peak) {
- current_peak = lvl;
- hold_state = hold_cnt;
- }
+ if (pixwidth <= 0 || pixheight <=0) return;
- if (hold_state > 0) {
- if (--hold_state == 0) {
+ if (peak == -1) {
+ if (lvl >= current_peak) {
current_peak = lvl;
+ hold_state = hold_cnt;
+ }
+
+ if (hold_state > 0) {
+ if (--hold_state == 0) {
+ current_peak = lvl;
+ }
}
+ bright_hold = false;
+ } else {
+ current_peak = peak;
+ hold_state = 1;
+ bright_hold = true;
}
- if (current_level == old_level && current_peak == old_peak && hold_state == 0) {
+ current_level = lvl;
+
+ if (current_level == old_level && current_peak == old_peak && (hold_state == 0 || peak != -1)) {
return;
}
-
Glib::RefPtr<Gdk::Window> win;
if ((win = get_window()) == 0) {
return;
}
- queue_vertical_redraw (win, old_level);
+ if (orientation == Vertical) {
+ queue_vertical_redraw (win, old_level);
+ } else {
+ queue_horizontal_redraw (win, old_level);
+ }
}
void
gdk_region_union_with_rect (region, &last_peak_rect);
}
+ if (hold_state && current_peak > 0) {
+ if (!queue) {
+ region = gdk_region_new ();
+ queue = true;
+ }
+ rect.x = 1;
+ rect.y = max(1, 1 + pixheight - (gint) floor (pixheight * current_peak));
+ if (bright_hold || (_styleflags & 2)) {
+ rect.height = max(0, min(3, pixheight - last_peak_rect.y -1 ));
+ } else {
+ rect.height = max(0, min(2, pixheight - last_peak_rect.y -1 ));
+ }
+ rect.width = pixwidth;
+ gdk_region_union_with_rect (region, &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)
+{
+ GdkRectangle rect;
+
+ gint new_right = (gint) floor (pixwidth * current_level);
+
+ rect.height = pixheight;
+ rect.y = 1;
+
+ if (current_level > old_level) {
+ rect.x = 1 + pixrect.width;
+ /* colored/pixbuf got larger, just draw the new section */
+ rect.width = new_right - pixrect.width;
+ } else {
+ /* it got smaller, compute the difference */
+ rect.x = 1 + new_right;
+ /* rect.height is the old.x (smaller) minus the new.x (larger) */
+ rect.width = pixrect.width - new_right;
+ }
+
+ 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 (hold_state && current_peak > 0) {
+ if (!queue) {
+ region = gdk_region_new ();
+ queue = true;
+ }
+ rect.y = 1;
+ rect.height = pixheight;
+ const int xpos = floor (pixwidth * current_peak);
+ if (bright_hold || (_styleflags & 2)) {
+ rect.width = min(3, xpos);
+ } else {
+ rect.width = min(2, xpos);
+ }
+ rect.x = 1 + max(0, xpos - rect.width);
+ gdk_region_union_with_rect (region, &rect);
+ }
+
if (queue) {
gdk_window_invalidate_region (win->gobj(), region, true);
}
}
}
+void
+FastMeter::set_highlight (bool onoff)
+{
+ if (highlight == onoff) {
+ return;
+ }
+ highlight = onoff;
+ if (orientation == Vertical) {
+ bgpattern = request_vertical_background (pixwidth + 2, pixheight + 2, highlight ? _bgh : _bgc, highlight);
+ } else {
+ bgpattern = request_horizontal_background (pixwidth + 2, pixheight + 2, highlight ? _bgh : _bgc, highlight);
+ }
+ queue_draw ();
+}
+
void
FastMeter::clear ()
{