#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; }
using namespace Gtk;
using namespace Gdk;
using namespace Glib;
using namespace Gtkmm2ext;
using namespace std;
-RefPtr<Pixmap> FastMeter::v_pixmap;
-RefPtr<Bitmap> FastMeter::v_mask;
-gint FastMeter::v_pixheight = 0;
-gint FastMeter::v_pixwidth = 0;
-RefPtr<Pixmap> FastMeter::h_pixmap;
-RefPtr<Bitmap> FastMeter::h_mask;
-gint FastMeter::h_pixheight = 0;
-gint FastMeter::h_pixwidth = 0;
+int FastMeter::min_v_pixbuf_size = 10;
+int FastMeter::max_v_pixbuf_size = 1024;
+Glib::RefPtr<Gdk::Pixbuf>* FastMeter::v_pixbuf_cache = 0;
-FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o)
+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, int len, int clr0, int clr1, int clr2, int clr3)
{
orientation = o;
hold_cnt = hold;
hold_state = 0;
current_peak = 0;
current_level = 0;
- current_user_level = -100.0f;
-
+ 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) {
- pixrect.width = min (v_pixwidth, (gint) dimen);
- pixrect.height = v_pixheight;
+ if (!len)
+ len = 250;
+ pixbuf = request_vertical_meter(dimen, len);
+ } else {
+ if (!len)
+ len = 186;
+ pixbuf = request_horizontal_meter(len, dimen);
+ }
+
+ pixheight = pixbuf->get_height();
+ pixwidth = pixbuf->get_width();
+
+ if (orientation == Vertical) {
+ pixrect.width = min (pixwidth, (gint) dimen);
+ pixrect.height = pixheight;
} else {
- pixrect.width = h_pixwidth;
- pixrect.height = min (h_pixheight, (gint) dimen);
+ pixrect.width = pixwidth;
+ pixrect.height = min (pixheight, (gint) dimen);
}
request_width = pixrect.width;
request_height= pixrect.height;
}
-FastMeter::~FastMeter ()
+Glib::RefPtr<Gdk::Pixbuf> FastMeter::request_vertical_meter(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;
+
+ //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;
+
+ 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((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;
+ }
+ }
-void
-FastMeter::set_vertical_xpm (const std::string& xpm_file)
-{
- if (v_pixmap == 0) {
- gint w, h;
+ int offset = knee - y;
+ for (int i=0; i < offset; i++,y++) {
- v_pixmap = Pixmap::create_from_xpm(get_bogus_drawable(), Colormap::get_system(), v_mask, Gdk::Color(), xpm_file);
- v_pixmap->get_size(w, h);
-
- v_pixheight = h;
- v_pixwidth = w;
+ 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;
}
-void
-FastMeter::set_horizontal_xpm (const std::string& xpm_file)
+Glib::RefPtr<Gdk::Pixbuf> FastMeter::request_horizontal_meter(int width, int height)
{
- if (h_pixmap == 0) {
- gint w, h;
+ if (width < min_h_pixbuf_size)
+ width = min_h_pixbuf_size;
+ if (width > max_h_pixbuf_size)
+ width = max_h_pixbuf_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;
+
+ 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));
- h_pixmap = Pixmap::create_from_xpm(get_bogus_drawable(), Colormap::get_system(), h_mask, Gdk::Color(), xpm_file);
- h_pixmap->get_size(w, h);
+ 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));
- h_pixheight = h;
- h_pixwidth = w;
+ 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;
+ }
}
+
+ 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;
+
+ return ret;
+}
+
+FastMeter::~FastMeter ()
+{
}
void
void
FastMeter::on_size_request (GtkRequisition* req)
{
- req->width = request_width;
- req->height = request_height;
+ 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->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->height = request_height;
+ }
+
+}
+
+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_v_pixbuf_size);
+ h = min(h, max_v_pixbuf_size);
+
+ if ( h != alloc.get_height())
+ alloc.set_height(h);
+
+ if (pixheight != h) {
+ pixbuf = request_vertical_meter(request_width, h);
+ }
+
+ } else {
+
+ if (alloc.get_height() != request_height) {
+ alloc.set_height(request_height);
+ }
+
+ int w = alloc.get_width();
+ w = max(w, min_h_pixbuf_size);
+ w = min(w, max_h_pixbuf_size);
+
+ if ( w != alloc.get_width())
+ alloc.set_width(w);
+
+ if (pixwidth != w) {
+ pixbuf = request_horizontal_meter(w, request_height);
+ }
+ }
+
+ pixheight = pixbuf->get_height();
+ pixwidth = pixbuf->get_width();
+
+ DrawingArea::on_size_allocate(alloc);
}
bool
GdkRectangle intersection;
GdkRectangle background;
- top_of_meter = (gint) floor (v_pixheight * current_level);
+ 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 = v_pixheight - top_of_meter;
+ 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_drawable(get_style()->get_fg_gc(get_state()), v_pixmap,
- intersection.x, v_pixheight - top_of_meter,
- intersection.x, v_pixheight - top_of_meter,
- intersection.width, intersection.height);
+ // 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);
}
- /* draw peak bar */
-
+ // draw peak bar
+
if (hold_state) {
- get_window()->draw_drawable(get_style()->get_fg_gc(get_state()), v_pixmap,
- intersection.x, v_pixheight - (gint) floor (v_pixheight * current_peak),
- intersection.x, v_pixheight - (gint) floor (v_pixheight * current_peak),
- intersection.width, 3);
+ 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,
+ 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;
+ return TRUE;
}
bool
FastMeter::horizontal_expose (GdkEventExpose* ev)
{
- GdkRectangle intersection;
gint right_of_meter;
+ GdkRectangle intersection;
+ GdkRectangle background;
- right_of_meter = (gint) floor (h_pixwidth * current_level);
+ right_of_meter = (gint) floor (pixwidth * current_level);
pixrect.width = right_of_meter;
- if (gdk_rectangle_intersect (&pixrect, &ev->area, &intersection)) {
-
- /* draw the part of the meter image that we need.
- */
+ background.x = 0;
+ background.y = 0;
+ background.width = pixwidth - right_of_meter;
+ background.height = pixrect.height;
- get_window()->draw_drawable(get_style()->get_fg_gc(get_state()), h_pixmap,
- intersection.x, intersection.y,
- intersection.x, intersection.y,
- intersection.width, intersection.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);
}
- /* draw peak bar */
-
- if (hold_state) {
- get_window()->draw_drawable(get_style()->get_fg_gc(get_state()), h_pixmap,
- right_of_meter, intersection.y,
- right_of_meter, intersection.y,
- 3, 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, intersection.y,
+ intersection.x, intersection.y,
+ pixrect.width, intersection.height,
+ Gdk::RGB_DITHER_NONE, 0, 0);
}
+ // 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);
+ }
+ */
+
return true;
}
void
-FastMeter::set (float lvl, float usrlvl)
+FastMeter::set (float lvl)
{
+ float old_level = current_level;
+ float old_peak = current_peak;
+
current_level = lvl;
- current_user_level = usrlvl;
if (lvl > current_peak) {
current_peak = lvl;
}
}
+ 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