--- /dev/null
+/*
+ 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__ */
#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;
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 */
} 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;
}
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
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);
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
{
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;
}
projects / ardour.git / commitdiff