[gnome-panel] don't use deprecated GtkSymbolicColor
- From: Alberts Muktupāvels <muktupavels src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-panel] don't use deprecated GtkSymbolicColor
- Date: Sat, 28 Dec 2013 13:00:05 +0000 (UTC)
commit 9bc6d3cd8518b81a905a08c343c2607be9340056
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date: Sat Dec 28 14:56:07 2013 +0200
don't use deprecated GtkSymbolicColor
Code for color shading copied from mutter:
https://git.gnome.org/browse/mutter/tree/src/ui/theme.c
applets/clock/Makefile.am | 1 +
applets/clock/clock-map.c | 19 ++--
gnome-panel/libpanel-util/Makefile.am | 2 +
gnome-panel/libpanel-util/panel-color.c | 198 +++++++++++++++++++++++++++++++
gnome-panel/libpanel-util/panel-color.h | 12 ++
gnome-panel/panel-frame.c | 60 ++++------
6 files changed, 246 insertions(+), 46 deletions(-)
---
diff --git a/applets/clock/Makefile.am b/applets/clock/Makefile.am
index 40e964b..d99375a 100644
--- a/applets/clock/Makefile.am
+++ b/applets/clock/Makefile.am
@@ -58,6 +58,7 @@ CLOCK_CPPFLAGS = \
CLOCK_LDADD = \
../../libpanel-applet/libpanel-applet-4.la \
+ ../../gnome-panel/libpanel-util/libpanel-util.la \
$(CLOCK_LIBS) \
$(CLOCK_EDS_LIBS) \
$(LIBPANEL_APPLET_LIBS) \
diff --git a/applets/clock/clock-map.c b/applets/clock/clock-map.c
index 1b4cdf3..19178d4 100644
--- a/applets/clock/clock-map.c
+++ b/applets/clock/clock-map.c
@@ -8,6 +8,8 @@
#include <gtk/gtk.h>
#include <math.h>
+#include <gnome-panel/libpanel-util/panel-color.h>
+
#include "clock.h"
#include "clock-map.h"
#include "clock-sunpos.h"
@@ -227,24 +229,19 @@ static gboolean
clock_map_draw (GtkWidget *this, cairo_t *cr)
{
ClockMapPrivate *priv = PRIVATE (this);
- GtkStyleContext *context;
- GdkRGBA color;
- GtkSymbolicColor *symbolic, *lighter_symbolic;
+ GtkStyleContext *context;
+ GdkRGBA color;
int width, height;
context = gtk_widget_get_style_context (this);
gtk_style_context_get_color (context, GTK_STATE_FLAG_ACTIVE, &color);
/* Color for the outline. We want a light version of the active color */
- symbolic = gtk_symbolic_color_new_literal (&color);
- lighter_symbolic = gtk_symbolic_color_new_shade (symbolic, 3);
- gtk_symbolic_color_resolve (lighter_symbolic, NULL, &color);
- gtk_symbolic_color_unref (symbolic);
- gtk_symbolic_color_unref (lighter_symbolic);
+ gtk_style_shade (&color, &color, 3);
- if (!priv->shadow_map_pixbuf) {
+ if (!priv->shadow_map_pixbuf) {
g_warning ("Needed to refresh the map in draw event.");
- clock_map_refresh (CLOCK_MAP (this));
+ clock_map_refresh (CLOCK_MAP (this));
}
width = gdk_pixbuf_get_width (priv->shadow_map_pixbuf);
@@ -260,7 +257,7 @@ clock_map_draw (GtkWidget *this, cairo_t *cr)
cairo_set_line_width (cr, 1.0);
cairo_stroke (cr);
- return FALSE;
+ return FALSE;
}
static void
diff --git a/gnome-panel/libpanel-util/Makefile.am b/gnome-panel/libpanel-util/Makefile.am
index 7d14eea..20df2bc 100644
--- a/gnome-panel/libpanel-util/Makefile.am
+++ b/gnome-panel/libpanel-util/Makefile.am
@@ -51,6 +51,8 @@ libpanel_util_la_SOURCES = \
panel-cleanup.h \
panel-dconf.c \
panel-dconf.h \
+ panel-color.c \
+ panel-color.h \
panel-error.c \
panel-error.h \
panel-glib.c \
diff --git a/gnome-panel/libpanel-util/panel-color.c b/gnome-panel/libpanel-util/panel-color.c
new file mode 100644
index 0000000..864d68d
--- /dev/null
+++ b/gnome-panel/libpanel-util/panel-color.c
@@ -0,0 +1,198 @@
+#include "panel-color.h"
+
+/**
+ * rgb_to_hls:
+ * @r: on input, red; on output, hue
+ * @g: on input, green; on output, lightness
+ * @b: on input, blue; on output, saturation
+ *
+ * Converts a red/green/blue triplet to a hue/lightness/saturation triplet.
+ */
+static void
+rgb_to_hls (gdouble *r, gdouble *g, gdouble *b)
+{
+ gdouble min;
+ gdouble max;
+ gdouble red;
+ gdouble green;
+ gdouble blue;
+ gdouble h, l, s;
+ gdouble delta;
+
+ red = *r;
+ green = *g;
+ blue = *b;
+
+ if (red > green) {
+ if (red > blue)
+ max = red;
+ else
+ max = blue;
+
+ if (green < blue)
+ min = green;
+ else
+ min = blue;
+ } else {
+ if (green > blue)
+ max = green;
+ else
+ max = blue;
+
+ if (red < blue)
+ min = red;
+ else
+ min = blue;
+ }
+
+ l = (max + min) / 2;
+ s = 0;
+ h = 0;
+
+ if (max != min) {
+ if (l <= 0.5)
+ s = (max - min) / (max + min);
+ else
+ s = (max - min) / (2 - max - min);
+
+ delta = max -min;
+ if (red == max)
+ h = (green - blue) / delta;
+ else if (green == max)
+ h = 2 + (blue - red) / delta;
+ else if (blue == max)
+ h = 4 + (red - green) / delta;
+
+ h *= 60;
+ if (h < 0.0)
+ h += 360;
+ }
+
+ *r = h;
+ *g = l;
+ *b = s;
+}
+
+/**
+ * hls_to_rgb:
+ * @h: on input, hue; on output, red
+ * @l: on input, lightness; on output, green
+ * @s: on input, saturation; on output, blue
+ *
+ * Converts a hue/lightness/saturation triplet to a red/green/blue triplet.
+ */
+static void
+hls_to_rgb (gdouble *h, gdouble *l, gdouble *s)
+{
+ gdouble hue;
+ gdouble lightness;
+ gdouble saturation;
+ gdouble m1, m2;
+ gdouble r, g, b;
+
+ lightness = *l;
+ saturation = *s;
+
+ if (lightness <= 0.5)
+ m2 = lightness * (1 + saturation);
+ else
+ m2 = lightness + saturation - lightness * saturation;
+ m1 = 2 * lightness - m2;
+
+ if (saturation == 0) {
+ *h = lightness;
+ *l = lightness;
+ *s = lightness;
+ } else {
+ hue = *h + 120;
+ while (hue > 360)
+ hue -= 360;
+ while (hue < 0)
+ hue += 360;
+
+ if (hue < 60)
+ r = m1 + (m2 - m1) * hue / 60;
+ else if (hue < 180)
+ r = m2;
+ else if (hue < 240)
+ r = m1 + (m2 - m1) * (240 - hue) / 60;
+ else
+ r = m1;
+
+ hue = *h;
+ while (hue > 360)
+ hue -= 360;
+ while (hue < 0)
+ hue += 360;
+
+ if (hue < 60)
+ g = m1 + (m2 - m1) * hue / 60;
+ else if (hue < 180)
+ g = m2;
+ else if (hue < 240)
+ g = m1 + (m2 - m1) * (240 - hue) / 60;
+ else
+ g = m1;
+
+ hue = *h - 120;
+ while (hue > 360)
+ hue -= 360;
+ while (hue < 0)
+ hue += 360;
+
+ if (hue < 60)
+ b = m1 + (m2 - m1) * hue / 60;
+ else if (hue < 180)
+ b = m2;
+ else if (hue < 240)
+ b = m1 + (m2 - m1) * (240 - hue) / 60;
+ else
+ b = m1;
+
+ *h = r;
+ *l = g;
+ *s = b;
+ }
+}
+
+/**
+ * gtk_style_shade:
+ * @a: the starting colour
+ * @b: (out): the resulting colour
+ * @k: amount to scale lightness and saturation by
+ *
+ * Takes a colour "a", scales the lightness and saturation by a certain amount,
+ * and sets "b" to the resulting colour.
+ * gtkstyle.c cut-and-pastage.
+ */
+void
+gtk_style_shade (GdkRGBA *a, GdkRGBA *b, gdouble k)
+{
+ gdouble red;
+ gdouble green;
+ gdouble blue;
+
+ red = a->red;
+ green = a->green;
+ blue = a->blue;
+
+ rgb_to_hls (&red, &green, &blue);
+
+ green *= k;
+ if (green > 1.0)
+ green = 1.0;
+ else if (green < 0.0)
+ green = 0.0;
+
+ blue *= k;
+ if (blue > 1.0)
+ blue = 1.0;
+ else if (blue < 0.0)
+ blue = 0.0;
+
+ hls_to_rgb (&red, &green, &blue);
+
+ b->red = red;
+ b->green = green;
+ b->blue = blue;
+}
diff --git a/gnome-panel/libpanel-util/panel-color.h b/gnome-panel/libpanel-util/panel-color.h
new file mode 100644
index 0000000..df5881e
--- /dev/null
+++ b/gnome-panel/libpanel-util/panel-color.h
@@ -0,0 +1,12 @@
+#ifndef PANEL_COLOR_H
+#define PANEL_COLOR_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+void gtk_style_shade (GdkRGBA *a, GdkRGBA *b, gdouble k);
+
+G_END_DECLS
+
+#endif
diff --git a/gnome-panel/panel-frame.c b/gnome-panel/panel-frame.c
index 4307aa7..408796e 100644
--- a/gnome-panel/panel-frame.c
+++ b/gnome-panel/panel-frame.c
@@ -23,9 +23,9 @@
*/
#include <config.h>
+#include <libpanel-util/panel-color.h>
#include "panel-frame.h"
-
#include "panel-typebuiltins.h"
G_DEFINE_TYPE (PanelFrame, panel_frame, GTK_TYPE_BIN)
@@ -165,45 +165,35 @@ panel_frame_draw (GtkWidget *widget,
PanelFrameEdge edges)
{
PanelFrame *frame = (PanelFrame *) widget;
- GtkStyleContext *context;
- GtkStateFlags state;
+ GtkStyleContext *context;
+ GtkStateFlags state;
GdkRGBA bg, dark, light;
- GtkSymbolicColor *c1, *c2;
- int x, y, width, height;
+ int x, y, width, height;
GtkBorder padding;
- if (edges == PANEL_EDGE_NONE)
- return;
+ if (edges == PANEL_EDGE_NONE)
+ return;
- context = gtk_widget_get_style_context (widget);
- state = gtk_widget_get_state_flags (widget);
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
gtk_style_context_get_background_color (context, state, &bg);
- c1 = gtk_symbolic_color_new_literal (&bg);
-
- c2 = gtk_symbolic_color_new_shade (c1, 0.7);
- gtk_symbolic_color_resolve (c2, NULL, &dark);
- gtk_symbolic_color_unref (c2);
-
- c2 = gtk_symbolic_color_new_shade (c1, 1.3);
- gtk_symbolic_color_resolve (c2, NULL, &light);
- gtk_symbolic_color_unref (c2);
-
- gtk_symbolic_color_unref (c1);
+ gtk_style_shade (&bg, &dark, 0.7);
+ gtk_style_shade (&bg, &light, 1.3);
gtk_style_context_get_padding (context, state, &padding);
- /* Copied from gtk_default_draw_shadow() */
+ /* Copied from gtk_default_draw_shadow() */
x = y = 0;
cairo_set_line_width (cr, 1);
- if (frame->edges & PANEL_EDGE_BOTTOM && padding.bottom > 0) {
- if (padding.bottom > 1) {
+ if (frame->edges & PANEL_EDGE_BOTTOM && padding.bottom > 0) {
+ if (padding.bottom > 1) {
gdk_cairo_set_source_rgba (cr, &dark);
cairo_move_to (cr, x + .5, y + height - 2 + .5);
cairo_line_to (cr, x + width - 1 - .5, y + height - 2 + .5);
@@ -213,16 +203,16 @@ panel_frame_draw (GtkWidget *widget,
cairo_move_to (cr, x + .5, y + height - 1 - .5);
cairo_line_to (cr, x + width - 1 - .5, y + height - 1 - .5);
cairo_stroke (cr);
- } else {
- gdk_cairo_set_source_rgba (cr, &dark);
+ } else {
+ gdk_cairo_set_source_rgba (cr, &dark);
cairo_move_to (cr, x + .5, y + height - 1 - .5);
cairo_line_to (cr, x + width - 1 - .5, y + height - 1 - .5);
cairo_stroke (cr);
}
- }
+ }
- if (frame->edges & PANEL_EDGE_RIGHT && padding.right > 0) {
- if (padding.right > 1) {
+ if (frame->edges & PANEL_EDGE_RIGHT && padding.right > 0) {
+ if (padding.right > 1) {
gdk_cairo_set_source_rgba (cr, &dark);
cairo_move_to (cr, x + width - 2 - .5, y + .5);
cairo_line_to (cr, x + width - 2 - .5, y + height - 1 - .5);
@@ -238,35 +228,35 @@ panel_frame_draw (GtkWidget *widget,
cairo_line_to (cr, x + width - 1 - .5, y + height - 1 - .5);
cairo_stroke (cr);
}
- }
+ }
- if (frame->edges & PANEL_EDGE_TOP && padding.top > 0) {
+ if (frame->edges & PANEL_EDGE_TOP && padding.top > 0) {
gdk_cairo_set_source_rgba (cr, &light);
cairo_move_to (cr, x + .5, y + .5);
cairo_line_to (cr, x + width - 1 - .5, y + .5);
cairo_stroke (cr);
- if (padding.right > 1) {
+ if (padding.right > 1) {
gdk_cairo_set_source_rgba (cr, &bg);
cairo_move_to (cr, x + .5, y + 1 + .5);
cairo_line_to (cr, x + width - 1 - .5, y + 1 + .5);
cairo_stroke (cr);
}
- }
+ }
- if (frame->edges & PANEL_EDGE_LEFT && padding.left > 0) {
+ if (frame->edges & PANEL_EDGE_LEFT && padding.left > 0) {
gdk_cairo_set_source_rgba (cr, &light);
cairo_move_to (cr, x + .5, y + .5);
cairo_line_to (cr, x + .5, y + height - 1 - .5);
cairo_stroke (cr);
- if (padding.left > 1) {
+ if (padding.left > 1) {
gdk_cairo_set_source_rgba (cr, &bg);
cairo_move_to (cr, x + 1 + .5, y + .5);
cairo_line_to (cr, x + 1 + .5, y + height - 1 - .5);
cairo_stroke (cr);
}
- }
+ }
}
static gboolean
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