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meter background gradient (hardcoded colors so far)

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this is a quick test w/black borders only left+right
for Mr oofus to assess.
This commit is contained in:
Robin Gareus 2013-07-02 00:08:11 +02:00
parent 066b385c68
commit fdbb0ef780
2 changed files with 25 additions and 12 deletions
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33
libs/gtkmm2ext/fastmeter.cc
View file

@ -56,6 +56,11 @@ FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o, int len, in
_clr2 = clr2;
_clr3 = clr3;
_bgc0 = 0x000000ff;
_bgc1 = 0x333333ff;
_bgc2 = 0x333333ff;
_bgc3 = 0x444444ff;
set_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK);
pixrect.x = 1;
@ -65,14 +70,16 @@ FastMeter::FastMeter (long hold, unsigned long dimen, Orientation o, int len, in
if (!len) {
len = 250;
}
pattern = request_vertical_meter(dimen, len, clr0, clr1, clr2, clr3);
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?
}
pattern = request_horizontal_meter(len, dimen, clr0, clr1, clr2, clr3);
fgpattern = request_horizontal_meter(len, dimen, clr0, clr1, clr2, clr3);
bgpattern = request_horizontal_meter(len, dimen, _bgc0, _bgc1, _bgc2, _bgc3);
pixheight = dimen;
pixwidth = len;
}
@ -258,8 +265,10 @@ FastMeter::on_size_allocate (Gtk::Allocation &alloc)
}
if (pixheight != h) {
pattern = request_vertical_meter (
fgpattern = request_vertical_meter (
request_width, h, _clr0, _clr1, _clr2, _clr3);
bgpattern = request_vertical_meter (
request_width, h, _bgc0, _bgc1, _bgc2, _bgc3);
pixheight = h;
pixwidth = request_width - 2;
}
@ -279,8 +288,10 @@ FastMeter::on_size_allocate (Gtk::Allocation &alloc)
}
if (pixwidth != w) {
pattern = request_horizontal_meter (
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;
}
@ -327,20 +338,20 @@ FastMeter::vertical_expose (GdkEventExpose* ev)
pixrect.height = top_of_meter;
pixrect.y = pixheight - top_of_meter;
background.x = 0;
background.x = 1;
background.y = 0;
background.width = pixrect.width + 2;
background.width = pixrect.width;
background.height = pixheight - top_of_meter;
if (gdk_rectangle_intersect (&background, &ev->area, &intersection)) {
cairo_set_source_rgb (cr, 0, 0, 0); // black
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)) {
// draw the part of the meter image that we need. the area we draw is bounded "in reverse" (top->bottom)
cairo_set_source (cr, pattern->cobj());
cairo_set_source (cr, fgpattern->cobj());
cairo_rectangle (cr, intersection.x, intersection.y, intersection.width, intersection.height);
cairo_fill (cr);
}
@ -353,7 +364,7 @@ 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);
cairo_set_source (cr, pattern->cobj());
cairo_set_source (cr, fgpattern->cobj());
cairo_rectangle (cr, 1, last_peak_rect.y, pixwidth, last_peak_rect.height);
cairo_fill (cr);
@ -397,8 +408,8 @@ FastMeter::horizontal_expose (GdkEventExpose* ev)
// 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 (pattern->cobj(), &m);
cairo_set_source (cr, pattern->cobj());
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);
}

4
libs/gtkmm2ext/gtkmm2ext/fastmeter.h
View file

@ -56,10 +56,12 @@ protected:
private:
Cairo::RefPtr<Cairo::Pattern> pattern;
Cairo::RefPtr<Cairo::Pattern> fgpattern;
Cairo::RefPtr<Cairo::Pattern> bgpattern;
gint pixheight;
gint pixwidth;
int _clr0, _clr1, _clr2, _clr3;
int _bgc0, _bgc1, _bgc2, _bgc3;
Orientation orientation;
GdkRectangle pixrect;