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cairo-ify expose handlers for PixFader and PixScroller (latter is not used); tweak UI RC file in response; move rgb macros to gtkmm2ext for easier use there as we go cairo over time 

git-svn-id: svn://localhost/ardour2/branches/3.0@8775 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2011-02-08 19:19:55 +00:00
parent b12beab67c
commit cc074c66fa
9 changed files with 494 additions and 90 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gtk2_ardour/ardour3_ui_dark.rc.in
View File

@ -357,12 +357,10 @@ style "small_red_active_and_selected_button" = "small_button"
style "gain_fader"
{
bg[NORMAL] = { 0.269, 0.269, 0.300}
bg[ACTIVE] = { 0.152, 0.152, 0.168 }
bg[NORMAL] = shade (0.7, @A_lightest)
bg[ACTIVE] = shade (0.72, @A_lightest)
}
#MSR and related buttons
style "track_rec_enable_button" = "small_button"
@ -1286,9 +1284,9 @@ style "processor_fader"
}
# Fader processor's frame
style "processor_fader_frame"
style "processor_fader_frame"
{
bg[NORMAL] = @A_processor_fader_frame
bg[NORMAL] = @A_processor_fader_frame
}
# Pre-fader processor's background

5
gtk2_ardour/gain_meter.cc
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@ -449,7 +449,10 @@ GainMeterBase::set_meter_strip_name (const char * name)
void
GainMeterBase::set_fader_name (const char * name)
{
gain_slider->set_name (name);
uint32_t rgb_active = rgba_from_style (name, 0xff, 0, 0xff, 0, "bg", STATE_ACTIVE, false);
uint32_t rgb_normal = rgba_from_style (name, 0xff, 0xff, 0, 0, "bg", STATE_NORMAL, false);
gain_slider->set_border_colors (rgb_normal, rgb_active);
}
void

28
gtk2_ardour/rgb_macros.h Normal file
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@ -0,0 +1,28 @@
/*
Copyright (C) 2000 EMC Capital Management, Inc.
Developed by Jon Trowbridge <trow@gnu.org> and
Havoc Pennington <hp@pobox.com>.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtk_ardour_rgb_macros_h__
#define __gtk_ardour_rgb_macros_h__
#include "gtkmm2ext/rgb_macros.h"
#endif /* __gtk_ardour_rgb_macros_h__ */

30
gtk2_ardour/utils.cc
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@ -351,31 +351,31 @@ rgba_from_style (string style, uint32_t r, uint32_t g, uint32_t b, uint32_t a, s
foo.set_name (style);
foo.ensure_style ();
GtkRcStyle* waverc = foo.get_style()->gobj()->rc_style;
GtkRcStyle* rc = foo.get_style()->gobj()->rc_style;
if (waverc) {
if (rc) {
if (attr == "fg") {
r = waverc->fg[state].red / 257;
g = waverc->fg[state].green / 257;
b = waverc->fg[state].blue / 257;
r = rc->fg[state].red / 257;
g = rc->fg[state].green / 257;
b = rc->fg[state].blue / 257;
/* what a hack ... "a" is for "active" */
if (state == Gtk::STATE_NORMAL && rgba) {
a = waverc->fg[GTK_STATE_ACTIVE].red / 257;
a = rc->fg[GTK_STATE_ACTIVE].red / 257;
}
} else if (attr == "bg") {
r = g = b = 0;
r = waverc->bg[state].red / 257;
g = waverc->bg[state].green / 257;
b = waverc->bg[state].blue / 257;
r = rc->bg[state].red / 257;
g = rc->bg[state].green / 257;
b = rc->bg[state].blue / 257;
} else if (attr == "base") {
r = waverc->base[state].red / 257;
g = waverc->base[state].green / 257;
b = waverc->base[state].blue / 257;
r = rc->base[state].red / 257;
g = rc->base[state].green / 257;
b = rc->base[state].blue / 257;
} else if (attr == "text") {
r = waverc->text[state].red / 257;
g = waverc->text[state].green / 257;
b = waverc->text[state].blue / 257;
r = rc->text[state].red / 257;
g = rc->text[state].green / 257;
b = rc->text[state].blue / 257;
}
} else {
warning << string_compose (_("missing RGBA style for \"%1\""), style) << endl;

18
libs/gtkmm2ext/gtkmm2ext/pixfader.h
View File

@ -21,10 +21,11 @@
#define __gtkmm2ext_pixfader_h__
#include <cmath>
#include <stdint.h>
#include <gtkmm/drawingarea.h>
#include <gtkmm/adjustment.h>
#include <gdkmm/pixbuf.h>
#include <gdkmm.h>
namespace Gtkmm2ext {
@ -35,7 +36,8 @@ class PixFader : public Gtk::DrawingArea
virtual ~PixFader ();
void set_fader_length (int);
void set_border_colors (uint32_t rgba_left, uint32_t rgba_right);
protected:
Gtk::Adjustment& adjustment;
@ -54,10 +56,18 @@ class PixFader : public Gtk::DrawingArea
HORIZ=2,
};
private:
Glib::RefPtr<Gdk::Pixbuf> pixbuf;
private:
Cairo::RefPtr<Cairo::Context> belt_context;
Cairo::RefPtr<Cairo::ImageSurface> belt_surface;
Glib::RefPtr<Gdk::Pixbuf> pixbuf;
int span, girth;
int _orien;
float left_r;
float left_g;
float left_b;
float right_r;
float right_g;
float right_b;
GdkRectangle view;

5
libs/gtkmm2ext/gtkmm2ext/pixscroller.h
View File

@ -44,7 +44,12 @@ class PixScroller : public Gtk::DrawingArea
Gtk::Adjustment& adj;
private:
Cairo::RefPtr< Cairo::Context > rail_context;
Cairo::RefPtr< Cairo::ImageSurface > rail_surface;
Glib::RefPtr<Gdk::Pixbuf> rail;
Cairo::RefPtr< Cairo::Context > slider_context;
Cairo::RefPtr< Cairo::ImageSurface > slider_surface;
Glib::RefPtr<Gdk::Pixbuf> slider;
Gdk::Rectangle sliderrect;
Gdk::Rectangle railrect;

291
libs/gtkmm2ext/gtkmm2ext/rgb_macros.h Normal file
View File

@ -0,0 +1,291 @@
/*
Copyright (C) 2000 EMC Capital Management, Inc.
Developed by Jon Trowbridge <trow@gnu.org> and
Havoc Pennington <hp@pobox.com>.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtkmm2ext_rgb_macros_h__
#define __gtkmm2ext_rgb_macros_h__
/*
Some convenient macros for drawing into an RGB buffer.
Beware of side effects, code-bloat, and all of the other classic
cpp-perils...
*/
#define RGB_TO_UINT(r,g,b) ((((guint)(r))<<16)|(((guint)(g))<<8)|((guint)(b)))
#define RGB_TO_RGBA(x,a) (((x) << 8) | ((((guint)a) & 0xff)))
#define RGBA_TO_UINT(r,g,b,a) RGB_TO_RGBA(RGB_TO_UINT(r,g,b), a)
#define RGB_WHITE RGB_TO_UINT(0xff, 0xff, 0xff)
#define RGB_BLACK RGB_TO_UINT(0x00, 0x00, 0x00)
#define RGB_RED RGB_TO_UINT(0xff, 0x00, 0x00)
#define RGB_GREEN RGB_TO_UINT(0x00, 0xff, 0x00)
#define RGB_BLUE RGB_TO_UINT(0x00, 0x00, 0xff)
#define RGB_YELLOW RGB_TO_UINT(0xff, 0xff, 0x00)
#define RGB_VIOLET RGB_TO_UINT(0xff, 0x00, 0xff)
#define RGB_CYAN RGB_TO_UINT(0x00, 0xff, 0xff)
#define RGBA_WHITE RGB_TO_RGBA(RGB_WHITE, 0xff)
#define RGBA_BLACK RGB_TO_RGBA(RGB_BLACK, 0xff)
#define RGBA_RED RGB_TO_RGBA(RGB_RED, 0xff)
#define RGBA_GREEN RGB_TO_RGBA(RGB_GREEN, 0xff)
#define RGBA_BLUE RGB_TO_RGBA(RGB_BLUE, 0xff)
#define RGBA_YELLOW RGB_TO_RGBA(RGB_YELLOW, 0xff)
#define RGBA_VIOLET RGB_TO_RGBA(RGB_VIOLET, 0xff)
#define RGBA_CYAN RGB_TO_RGBA(RGB_CYAN, 0xff)
#define RGB_GREY(x) RGB_TO_UINT(x,x,x)
#define RGBA_GREY(x) RGB_TO_RGBA(RGB_GREY(x), 0xff)
#define UINT_RGBA_R(x) (((guint)(x))>>24)
#define UINT_RGBA_G(x) ((((guint)(x))>>16)&0xff)
#define UINT_RGBA_B(x) ((((guint)(x))>>8)&0xff)
#define UINT_RGBA_A(x) (((guint)(x))&0xff)
#define UINT_RGBA_R_FLT(x) ((((guint)(x))>>24)/255.0)
#define UINT_RGBA_G_FLT(x) (((((guint)(x))>>16)&0xff)/255.0)
#define UINT_RGBA_B_FLT(x) (((((guint)(x))>>8)&0xff)/255.0)
#define UINT_RGBA_A_FLT(x) ((((guint)(x))&0xff)/255.0)
#define UINT_RGBA_CHANGE_R(x, r) (((x)&(~(0xff<<24)))|(((r)&0xff)<<24))
#define UINT_RGBA_CHANGE_G(x, g) (((x)&(~(0xff<<16)))|(((g)&0xff)<<16))
#define UINT_RGBA_CHANGE_B(x, b) (((x)&(~(0xff<<8)))|(((b)&0xff)<<8))
#define UINT_RGBA_CHANGE_A(x, a) (((x)&(~0xff))|((a)&0xff))
#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; }
#define MONO_INTERPOLATE(v1, v2, t) ((gint)rint((v2)*(t)+(v1)*(1-(t))))
#define UINT_INTERPOLATE(c1, c2, t) \
RGBA_TO_UINT( MONO_INTERPOLATE(UINT_RGBA_R(c1), UINT_RGBA_R(c2), t), \
MONO_INTERPOLATE(UINT_RGBA_G(c1), UINT_RGBA_G(c2), t), \
MONO_INTERPOLATE(UINT_RGBA_B(c1), UINT_RGBA_B(c2), t), \
MONO_INTERPOLATE(UINT_RGBA_A(c1), UINT_RGBA_A(c2), t) )
#define PIXEL_RGB(p, r, g, b) \
{((guchar*)(p))[0]=(r); ((guchar*)(p))[1]=(g); ((guchar*)(p))[2]=(b);}
#define PIXEL_RGBA(p, r, g, b, a) \
{ if ((a)>=0xff) { PIXEL_RGB(p,r,g,b) } \
else if ((a)>0) { \
guint pixel_tmp; \
pixel_tmp = ((guchar*)(p))[0]; \
((guchar*)(p))[0] = pixel_tmp + ((((r)-pixel_tmp)*(a)+0x80) >> 8); \
pixel_tmp = ((guchar*)(p))[1]; \
((guchar*)(p))[1] = pixel_tmp + ((((g)-pixel_tmp)*(a)+0x80) >> 8); \
pixel_tmp = ((guchar*)(p))[2]; \
((guchar*)(p))[2] = pixel_tmp + ((((b)-pixel_tmp)*(a)+0x80) >> 8); }}
#define PIXEL_RGB_UINT(p, i) \
UINT_TO_RGB((i), ((guchar*)p), ((guchar*)p)+1, ((guchar*)p)+2)
#define PIXEL_RGBA_UINT(p, i) \
PIXEL_RGBA((p), ((i)>>24)&0xff, ((i)>>16)&0xff, ((i)>>8)&0xff, (i)&0xff)
#define PIXEL_BLACK(p) PIXEL_RGB(p,0,0,0)
#define PIXEL_WHITE(p) PIXEL_RGB(p,0xff,0xff,0xff)
#define PIXEL_GREY(p,g) PIXEL_RGB(p,g,g,g)
#define PIXEL_GREYA(p,g,a) PIXEL_RGBA(p,g,g,g,a)
#define BUF_PTR(inbuf, ptx, pty) \
((inbuf)->buf + 3*((ptx)-(inbuf)->rect.x0) + (inbuf)->buf_rowstride*((pty)-(inbuf)->rect.y0))
#define BUF_INBOUNDS_X(inbuf, ptx) \
((inbuf)->rect.x0 <= (ptx) && (ptx) < (inbuf)->rect.x1)
#define BUF_INBOUNDS_Y(inbuf, pty) \
((inbuf)->rect.y0 <= (pty) && (pty) < (inbuf)->rect.y1)
#define PAINT_DOT(inbuf, colr, colg, colb,ptx, pty) \
{ \
guchar* pd_p; \
if (BUF_INBOUNDS_X(inbuf, ptx) && BUF_INBOUNDS_Y(inbuf, pty)) { \
pd_p = BUF_PTR(inbuf, ptx, pty); \
PIXEL_RGB(pd_p, (colr), (colg), (colb)); \
} \
}
#define FAST_PAINT_DOT(inbuf, colr, colg, colb,ptx, pty) \
{ \
guchar* pd_p; \
pd_p = BUF_PTR(inbuf, ptx, pty); \
PIXEL_RGB(pd_p, (colr), (colg), (colb)); \
}
#define PAINT_DOTA(inbuf, colr, colg, colb, cola, ptx, pty) \
{ \
guchar* pd_p; \
if (BUF_INBOUNDS_X(inbuf, ptx) && BUF_INBOUNDS_Y(inbuf, pty)) { \
pd_p = BUF_PTR(inbuf, ptx, pty); \
PIXEL_RGBA(pd_p, (colr), (colg), (colb), (cola)); \
} \
}
#define FAST_PAINT_DOTA(inbuf, colr, colg, colb, cola, ptx, pty) \
{ \
guchar* pd_p; \
pd_p = BUF_PTR(inbuf, ptx, pty); \
PIXEL_RGBA(pd_p, (colr), (colg), (colb), (cola)); \
}
#define PAINT_HORIZ(inbuf, colr, colg, colb, ptx0, ptx1, pty) \
{ \
GnomeCanvasBuf* ph_buf = (inbuf); \
guchar* ph_p; \
gint ph_a0, ph_a1; \
gint ph_colr=(colr), ph_colg=(colg), ph_colb=(colb); \
\
ph_a0 = MAX(ph_buf->rect.x0, (gint)(ptx0)); \
ph_a1 = MIN(ph_buf->rect.x1, (gint)(ptx1)); \
\
if (ph_a0 < ph_a1 && BUF_INBOUNDS_Y(ph_buf, (gint)(pty))) { \
ph_p = BUF_PTR(ph_buf, ph_a0, pty); \
while (ph_a0 < ph_a1) { \
PIXEL_RGB(ph_p, ph_colr, ph_colg, ph_colb); \
++ph_a0; \
ph_p += 3; \
} \
} \
}
#define FAST_PAINT_HORIZ(inbuf, colr, colg, colb, ptx0, ptx1, pty) \
{ \
GnomeCanvasBuf* ph_buf = (inbuf); \
guchar* ph_p; \
gint ph_a0, ph_a1; \
gint ph_colr=(colr), ph_colg=(colg), ph_colb=(colb); \
\
ph_a0 = MAX(ph_buf->rect.x0, (gint)(ptx0)); \
ph_a1 = MIN(ph_buf->rect.x1, (gint)(ptx1)); \
\
if (ph_a0 < ph_a1 && BUF_INBOUNDS_Y(ph_buf, (gint)(pty))) { \
ph_p = BUF_PTR(ph_buf, ph_a0, pty); \
while (ph_a0 < ph_a1) { \
PIXEL_RGB(ph_p, ph_colr, ph_colg, ph_colb); \
++ph_a0; \
ph_p += 3; \
} \
} \
}
#define PAINT_HORIZA(inbuf, colr, colg, colb, cola, ptx0, ptx1, pty) \
{ \
GnomeCanvasBuf* ph_buf = (inbuf); \
guchar* ph_p; \
gint ph_a0, ph_a1; \
gint ph_colr=(colr), ph_colg=(colg), ph_colb=(colb), ph_cola=(cola); \
\
ph_a0 = MAX(ph_buf->rect.x0, (gint)(ptx0)); \
ph_a1 = MIN(ph_buf->rect.x1, (gint)(ptx1)); \
\
if (ph_a0 < ph_a1 && BUF_INBOUNDS_Y(ph_buf, (gint)(pty))) { \
ph_p = BUF_PTR(ph_buf, ph_a0, pty); \
while (ph_a0 < ph_a1) { \
PIXEL_RGBA(ph_p, ph_colr, ph_colg, ph_colb, ph_cola); \
++ph_a0; \
ph_p += 3; \
} \
} \
}
#define PAINT_VERT(inbuf, colr, colg, colb, ptx, pty0, pty1) \
{ \
GnomeCanvasBuf* pv_buf = (inbuf); \
guchar* pv_p; \
gint pv_b0, pv_b1; \
gint pv_colr=(colr), pv_colg=(colg), pv_colb=(colb);\
\
pv_b0 = MAX(pv_buf->rect.y0, (gint)(pty0)); \
pv_b1 = MIN(pv_buf->rect.y1, (gint)(pty1)); \
\
if (pv_b0 < pv_b1 && BUF_INBOUNDS_X(pv_buf, (gint)(ptx))) { \
pv_p = BUF_PTR(pv_buf, ptx, pv_b0); \
while (pv_b0 < pv_b1) { \
PIXEL_RGB(pv_p, pv_colr, pv_colg, pv_colb); \
++pv_b0; \
pv_p += pv_buf->buf_rowstride; \
} \
} \
}
#define FAST_PAINT_VERT(inbuf, colr, colg, colb, ptx, pty0, pty1) \
{ \
GnomeCanvasBuf* fpv_buf = (inbuf); \
guchar* fpv_p; \
gint fpv_b0, fpv_b1; \
\
fpv_b0 = MAX(fpv_buf->rect.y0, (gint)(pty0)); \
fpv_b1 = MIN(fpv_buf->rect.y1, (gint)(pty1)); \
\
fpv_p = BUF_PTR(fpv_buf, ptx, fpv_b0); \
\
while (fpv_b0 < fpv_b1) { \
PIXEL_RGB(fpv_p, colr, colg, colb); \
++fpv_b0; \
fpv_p += fpv_buf->buf_rowstride; \
} \
}
#define PAINT_VERTA(inbuf, colr, colg, colb, cola, ptx, pty0, pty1) \
{ \
GnomeCanvasBuf* pv_buf = (inbuf); \
guchar* pv_p; \
gint pv_b0, pv_b1; \
gint pv_colr=(colr), pv_colg=(colg), pv_colb=(colb), pv_cola=(cola);\
\
pv_b0 = MAX(pv_buf->rect.y0, (pty0)); \
pv_b1 = MIN(pv_buf->rect.y1, (pty1)); \
\
if (pv_b0 < pv_b1 && BUF_INBOUNDS_X(pv_buf, ptx)) { \
pv_p = BUF_PTR(pv_buf, ptx, pv_b0); \
while (pv_b0 < pv_b1) { \
PIXEL_RGBA(pv_p, pv_colr, pv_colg, pv_colb, pv_cola); \
++pv_b0; \
pv_p += pv_buf->buf_rowstride; \
} \
} \
}
/* Paint a solid-colored box into a GnomeCanvasBuf (clipping as necessary).
The box contains (ptx0,pty0), but not (ptx1, pty1).
Each macro arg should appear exactly once in the body of the code. */
#define PAINT_BOX(inbuf, colr, colg, colb, cola, ptx0, pty0, ptx1, pty1) \
{ \
GnomeCanvasBuf* pb_buf = (inbuf); \
guchar* pb_p; \
guchar* pb_pp; \
gint pb_a0, pb_a1, pb_b0, pb_b1, pb_i, pb_j; \
gint pb_colr=(colr), pb_colg=(colg), pb_colb=(colb), pb_cola=(cola); \
\
pb_a0 = MAX(pb_buf->rect.x0, (ptx0)); \
pb_a1 = MIN(pb_buf->rect.x1, (ptx1)); \
pb_b0 = MAX(pb_buf->rect.y0, (pty0)); \
pb_b1 = MIN(pb_buf->rect.y1, (pty1)); \
\
if (pb_a0 < pb_a1 && pb_b0 < pb_b1) { \
pb_p = BUF_PTR(pb_buf, pb_a0, pb_b0); \
for (pb_j=pb_b0; pb_j<pb_b1; ++pb_j) { \
pb_pp = pb_p; \
for (pb_i=pb_a0; pb_i<pb_a1; ++pb_i) { \
PIXEL_RGBA(pb_pp, pb_colr, pb_colg, pb_colb, pb_cola); \
pb_pp += 3; \
} \
pb_p += pb_buf->buf_rowstride; \
} \
} \
}
/* No bounds checking in this version */
#define FAST_PAINT_BOX(inbuf, colr, colg, colb, cola, ptx0, pty0, ptx1, pty1) \
{ \
GnomeCanvasBuf* pb_buf = (inbuf); \
guchar* pb_p; \
guchar* pb_pp; \
gint pb_i, pb_j; \
\
pb_p = BUF_PTR(pb_buf, ptx0, pty0); \
for (pb_j=pty0; pb_j<pty1; ++pb_j) { \
pb_pp = pb_p; \
for (pb_i=ptx0; pb_i<ptx1; ++pb_i) { \
PIXEL_RGBA(pb_pp, colr, colg, colb, cola); \
pb_pp += 3; \
} \
pb_p += pb_buf->buf_rowstride; \
} \
}
#endif /* __gtkmm2ext_rgb_macros_h__ */

123
libs/gtkmm2ext/pixfader.cc
View File

@ -22,22 +22,23 @@
#include <iostream>
#include "gtkmm2ext/pixfader.h"
#include "gtkmm2ext/keyboard.h"
#include "gtkmm2ext/rgb_macros.h"
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace Gdk;
using namespace std;
int PixFader::fine_scale_modifier = Keyboard::PrimaryModifier;
int PixFader::extra_fine_scale_modifier = Keyboard::SecondaryModifier;
PixFader::PixFader (Glib::RefPtr<Pixbuf> belt, Gtk::Adjustment& adj, int orientation, int fader_length)
PixFader::PixFader (Glib::RefPtr<Gdk::Pixbuf> belt, Gtk::Adjustment& adj, int orientation, int fader_length)
: adjustment (adj),
pixbuf (belt),
_orien(orientation)
{
Cairo::Format format;
dragging = false;
default_value = adjustment.get_value();
last_drawn = -1;
@ -57,20 +58,50 @@ PixFader::PixFader (Glib::RefPtr<Pixbuf> belt, Gtk::Adjustment& adj, int orienta
adjustment.signal_value_changed().connect (mem_fun (*this, &PixFader::adjustment_changed));
adjustment.signal_changed().connect (mem_fun (*this, &PixFader::adjustment_changed));
if (pixbuf->get_has_alpha()) {
format = Cairo::FORMAT_ARGB32;
} else {
format = Cairo::FORMAT_RGB24;
}
belt_surface = Cairo::ImageSurface::create (format, pixbuf->get_width(), pixbuf->get_height());
belt_context = Cairo::Context::create (belt_surface);
Gdk::Cairo::set_source_pixbuf (belt_context, pixbuf, 0.0, 0.0);
belt_context->paint();
left_r = 0;
left_g = 0;
left_b = 0;
right_r = 0;
right_g = 0;
right_b = 0;
}
PixFader::~PixFader ()
{
}
void
PixFader::set_border_colors (uint32_t left, uint32_t right)
{
int r, g, b;
UINT_TO_RGB(left, &r, &g, &b);
left_r = r/255.0;
left_g = g/255.0;
left_b = b/255.0;
UINT_TO_RGB(right, &r, &g, &b);
right_r = r/255.0;
right_g = g/255.0;
right_b = b/255.0;
}
bool
PixFader::on_expose_event (GdkEventExpose* ev)
{
GdkRectangle intersection;
Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
int srcx, srcy;
int const ds = display_span ();
int offset_into_pixbuf = (int) floor (span / ((float) span / ds));
/* account for fader lengths that are shorter than the fader pixbuf */
@ -79,36 +110,66 @@ PixFader::on_expose_event (GdkEventExpose* ev)
} else {
offset_into_pixbuf += pixbuf->get_width() / 2 - view.width;
}
context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
context->clip ();
Glib::RefPtr<Gdk::GC> fg_gc (get_style()->get_fg_gc(get_state()));
if (_orien == VERT) {
srcx = 0;
srcy = offset_into_pixbuf;
} else {
srcx = offset_into_pixbuf;
srcy = 0;
}
/* fader */
context->save();
context->set_source (belt_surface, -srcx, -srcy);
context->rectangle (0, 0, get_width(), get_height());
context->clip();
context->paint();
context->restore();
/* bounding box lines (2 colors for nicer visuals) */
/* top and left side */
context->set_line_width (1);
context->set_source_rgb (left_r, left_g, left_b);
context->move_to (view.width - 1, 0); /* upper right */
context->line_to (0, 0); /* upper left */
context->line_to (0, view.height - 1);/* lower left */
context->stroke ();
/* bottom & right side */
context->set_line_width (1);
context->set_source_rgb (right_r, right_g, right_b);
context->move_to (0, view.height - 1 + 0.5); /* lower left */
context->line_to (view.width - 1, view.height - 1 + 0.5); /* lower right */
context->line_to (view.width - 1 + 0.5, 0); /* upper right */
context->stroke ();
/* always draw the unity-position line */
if (gdk_rectangle_intersect (&view, &ev->area, &intersection)) {
if (_orien == VERT) {
srcx = intersection.x;
srcy = offset_into_pixbuf + intersection.y;
} else {
srcx = offset_into_pixbuf + intersection.x;
srcy = intersection.y;
}
get_window()->draw_pixbuf (fg_gc, pixbuf,
srcx, srcy,
intersection.x, intersection.y,
intersection.width, intersection.height,
Gdk::RGB_DITHER_NONE, 0, 0);
get_window()->draw_line (get_style()->get_bg_gc(STATE_ACTIVE), 0, 0, view.width - 1, 0); /* top */
get_window()->draw_line (get_style()->get_bg_gc(STATE_ACTIVE), 0, 0, 0, view.height - 1); /* left */
get_window()->draw_line (get_style()->get_bg_gc(STATE_NORMAL), view.width - 1, 0, view.width - 1, view.height - 1); /* right */
get_window()->draw_line (get_style()->get_bg_gc(STATE_NORMAL), 0, view.height - 1, view.width - 1, view.height - 1); /* bottom */
}
/* always draw the line */
if (_orien == VERT) {
get_window()->draw_line (fg_gc, 1, unity_loc, girth - 2, unity_loc);
context->set_line_width (1);
context->set_source_rgb (0.0, 1.0, 0.0);
context->move_to (1, unity_loc);
context->line_to (girth - 2, unity_loc);
context->stroke ();
} else {
get_window()->draw_line (fg_gc, unity_loc, 1, unity_loc, girth - 2);
context->set_line_width (1);
context->set_source_rgb (0.0, 1.0, 0.0);
context->move_to (unity_loc, 1.5);
context->line_to (unity_loc, girth - 1.5);
context->stroke ();
}
last_drawn = ds;
return true;
}
@ -299,8 +360,8 @@ PixFader::adjustment_changed ()
int
PixFader::display_span ()
{
float fract = (adjustment.get_upper() - adjustment.get_value ()) / ((adjustment.get_upper() - adjustment.get_lower()));
return (_orien == VERT) ? (int)floor (span * (1.0 - fract)) : (int)floor (span * fract);
float fract = (adjustment.get_value () - adjustment.get_lower()) / ((adjustment.get_upper() - adjustment.get_lower()));
return (_orien != VERT) ? (int)floor (span * (1.0 - fract)) : (int)floor (span * fract);
}
void

74
libs/gtkmm2ext/pixscroller.cc
View File

@ -37,6 +37,8 @@ PixScroller::PixScroller (Adjustment& a,
rail (r),
slider (s)
{
Cairo::Format format;
dragging = false;
add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK|Gdk::SCROLL_MASK);
@ -55,6 +57,26 @@ PixScroller::PixScroller (Adjustment& a,
sliderrect.set_y((int) rint ((overall_height - sliderrect.get_height()) * (adj.get_upper() - adj.get_value())));
railrect.set_x((sliderrect.get_width() / 2) - 2);
if (rail->get_has_alpha()) {
format = Cairo::FORMAT_ARGB32;
} else {
format = Cairo::FORMAT_RGB24;
}
rail_surface = Cairo::ImageSurface::create (format, rail->get_width(), rail->get_height());
rail_context = Cairo::Context::create (rail_surface);
Gdk::Cairo::set_source_pixbuf (rail_context, rail, 0.0, 0.0);
rail_context->paint();
if (slider->get_has_alpha()) {
format = Cairo::FORMAT_ARGB32;
} else {
format = Cairo::FORMAT_RGB24;
}
slider_surface = Cairo::ImageSurface::create (format, slider->get_width(), slider->get_height());
slider_context = Cairo::Context::create (slider_surface);
Gdk::Cairo::set_source_pixbuf (slider_context, slider, 0.0, 0.0);
slider_context->paint();
}
void
@ -69,46 +91,32 @@ PixScroller::on_expose_event (GdkEventExpose* ev)
{
GdkRectangle intersect;
Glib::RefPtr<Gdk::Window> win (get_window());
win->draw_rectangle (get_style()->get_bg_gc(get_state()), TRUE,
ev->area.x,
ev->area.y,
ev->area.width,
ev->area.height);
Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
if (gdk_rectangle_intersect (railrect.gobj(), &ev->area, &intersect)) {
Glib::RefPtr<Gdk::GC> gc(get_style()->get_bg_gc(get_state()));
win->draw_pixbuf (gc, rail,
intersect.x - railrect.get_x(),
intersect.y - railrect.get_y(),
intersect.x,
intersect.y,
intersect.width,
intersect.height,
Gdk::RGB_DITHER_NONE, 0, 0);
context->save();
context->rectangle (intersect.x, intersect.y, intersect.width, intersect.height);
context->clip();
context->set_source (rail_surface, intersect.x - railrect.get_x(), intersect.y - railrect.get_y());
context->rectangle (intersect.x, intersect.y, intersect.width, intersect.height);
context->clip();
context->paint();
context->restore();
}
if (gdk_rectangle_intersect (sliderrect.gobj(), &ev->area, &intersect)) {
Glib::RefPtr<Gdk::GC> gc(get_style()->get_fg_gc(get_state()));
// Glib::RefPtr<Gdk::Bitmap> mask (slider_mask);
GdkGCValues values;
gdk_gc_get_values(gc->gobj(), &values);
gc->set_clip_origin (sliderrect.get_x(), sliderrect.get_y());
// gc->set_clip_mask (mask);
win->draw_pixbuf (gc, slider,
intersect.x - sliderrect.get_x(),
intersect.y - sliderrect.get_y(),
intersect.x,
intersect.y,
intersect.width,
intersect.height,
Gdk::RGB_DITHER_NONE, 0, 0);
gc->set_clip_origin (values.clip_x_origin, values.clip_y_origin);
// gdk_gc_set_clip_mask (gc->gobj(), values.clip_mask);
context->save();
context->rectangle (intersect.x, intersect.y, intersect.width, intersect.height);
context->clip();
context->set_source (rail_surface, intersect.x - sliderrect.get_x(), intersect.y - sliderrect.get_y());
context->rectangle (intersect.x, intersect.y, intersect.width, intersect.height);
context->clip();
context->paint();
context->restore();
}
return true;
}