[gimp/gtk3-port: 173/457] app: port GimpHistogramView to GtkStyleContext
- From: Michael Natterer <mitch src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/gtk3-port: 173/457] app: port GimpHistogramView to GtkStyleContext
- Date: Sat, 19 May 2018 18:18:11 +0000 (UTC)
commit 35822bdad8083c9377671d43df9d87e3758cb7bf
Author: Michael Natterer <mitch gimp org>
Date: Tue Jan 11 10:59:50 2011 +0100
app: port GimpHistogramView to GtkStyleContext
Locally added shade() and mix() utility functions which use
GtkSymbolicColor. Will move them to a better place once they are
needed elsewhere.
app/widgets/gimphistogramview.c | 127 +++++++++++++++++++++++++++++---------
1 files changed, 97 insertions(+), 30 deletions(-)
---
diff --git a/app/widgets/gimphistogramview.c b/app/widgets/gimphistogramview.c
index b9a9dde..6a11b14 100644
--- a/app/widgets/gimphistogramview.c
+++ b/app/widgets/gimphistogramview.c
@@ -84,9 +84,9 @@ static void gimp_histogram_view_update_bins (GimpHistogramView *view);
static void gimp_histogram_view_draw_spike (GimpHistogramView *view,
GimpHistogramChannel channel,
cairo_t *cr,
- const GdkColor *fg_color,
+ const GdkRGBA *fg_color,
cairo_operator_t fg_operator,
- const GdkColor *bg_color,
+ const GdkRGBA *bg_color,
gint x,
gint i,
gint j,
@@ -290,12 +290,50 @@ gimp_histogram_view_get_maximum (GimpHistogramView *view,
return max;
}
+static void
+gimp_gdk_rgba_shade (const GdkRGBA *color,
+ gdouble factor,
+ GdkRGBA *shaded)
+{
+ GtkSymbolicColor *in;
+ GtkSymbolicColor *out;
+
+ in = gtk_symbolic_color_new_literal (color);
+ out = gtk_symbolic_color_new_shade (in, factor);
+
+ gtk_symbolic_color_resolve (out, NULL, shaded);
+
+ gtk_symbolic_color_unref (out);
+ gtk_symbolic_color_unref (in);
+}
+
+static void
+gimp_gdk_rgba_mix (const GdkRGBA *color1,
+ const GdkRGBA *color2,
+ gdouble factor,
+ GdkRGBA *mixed)
+{
+ GtkSymbolicColor *in1;
+ GtkSymbolicColor *in2;
+ GtkSymbolicColor *out;
+
+ in1 = gtk_symbolic_color_new_literal (color1);
+ in2 = gtk_symbolic_color_new_literal (color2);
+ out = gtk_symbolic_color_new_mix (in1, in2, factor);
+
+ gtk_symbolic_color_resolve (out, NULL, mixed);
+
+ gtk_symbolic_color_unref (out);
+ gtk_symbolic_color_unref (in1);
+ gtk_symbolic_color_unref (in2);
+}
+
static gboolean
gimp_histogram_view_draw (GtkWidget *widget,
cairo_t *cr)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (widget);
- GtkStyle *style = gtk_widget_get_style (widget);
+ GtkStyleContext *style = gtk_widget_get_style_context (widget);
GtkAllocation allocation;
gint x;
gint x1, x2;
@@ -304,14 +342,21 @@ gimp_histogram_view_draw (GtkWidget *widget,
gdouble max = 0.0;
gdouble bg_max = 0.0;
gint xstop;
- GdkColor *color_in;
- GdkColor *color_out;
- GdkColor *bg_color_in;
- GdkColor *bg_color_out;
- GdkColor rgb_color[3];
+ GdkRGBA color;
+ GdkRGBA light;
+ GdkRGBA dark;
+ GdkRGBA color_in;
+ GdkRGBA color_out;
+ GdkRGBA bg_color_in;
+ GdkRGBA bg_color_out;
+ GdkRGBA rgb_color[3];
+
+ gtk_style_context_save (style);
+ gtk_style_context_add_class (style, GTK_STYLE_CLASS_ENTRY);
/* Draw the background */
- gdk_cairo_set_source_color (cr, &style->base[GTK_STATE_NORMAL]);
+ gtk_style_context_get_background_color (style, 0, &color);
+ gdk_cairo_set_source_rgba (cr, &color);
cairo_paint (cr);
gtk_widget_get_allocation (widget, &allocation);
@@ -325,9 +370,9 @@ gimp_histogram_view_draw (GtkWidget *widget,
cairo_translate (cr, 0.5, 0.5);
/* Draw the outer border */
- gdk_cairo_set_source_color (cr, &style->text_aa[GTK_STATE_NORMAL]);
- cairo_rectangle (cr, border, border,
- width - 1, height - 1);
+ gimp_gdk_rgba_shade (&color, 0.7, &dark);
+ gdk_cairo_set_source_rgba (cr, &dark);
+ cairo_rectangle (cr, border, border, width - 1, height - 1);
cairo_stroke (cr);
if (! view->histogram && ! view->bg_histogram)
@@ -344,19 +389,32 @@ gimp_histogram_view_draw (GtkWidget *widget,
bg_max = gimp_histogram_view_get_maximum (view, view->bg_histogram,
view->channel);
- color_in = &style->text[GTK_STATE_SELECTED];
- color_out = &style->text[GTK_STATE_NORMAL];
+ gtk_style_context_get_color (style, GTK_STATE_FLAG_SELECTED,
+ &color_in);
+ gtk_style_context_get_color (style, 0,
+ &color_out);
+
+ gtk_style_context_get_background_color (style, GTK_STATE_FLAG_SELECTED,
+ &bg_color_in);
+ gtk_style_context_get_background_color (style, 0,
+ &bg_color_out);
- bg_color_in = &style->mid[GTK_STATE_SELECTED];
- bg_color_out = &style->mid[GTK_STATE_NORMAL];
+ gimp_gdk_rgba_shade (&bg_color_in, 1.3, &light);
+ gimp_gdk_rgba_shade (&bg_color_in, 0.7, &dark);
+ gimp_gdk_rgba_mix (&light, &dark, 0.5, &bg_color_in);
+
+ gimp_gdk_rgba_shade (&bg_color_out, 1.3, &light);
+ gimp_gdk_rgba_shade (&bg_color_out, 0.7, &dark);
+ gimp_gdk_rgba_mix (&light, &dark, 0.5, &bg_color_out);
if (view->channel == GIMP_HISTOGRAM_RGB)
{
for (x = 0; x < 3; x++)
{
- rgb_color[x].red = (x == 0 ? 0xFFFF : 0x0);
- rgb_color[x].green = (x == 1 ? 0xFFFF : 0x0);
- rgb_color[x].blue = (x == 2 ? 0xFFFF : 0x0);
+ rgb_color[x].red = (x == 0 ? 1.0 : 0.0);
+ rgb_color[x].green = (x == 1 ? 1.0 : 0.0);
+ rgb_color[x].blue = (x == 2 ? 1.0 : 0.0);
+ rgb_color[x].alpha = 1.0;
}
}
@@ -379,7 +437,10 @@ gimp_histogram_view_draw (GtkWidget *widget,
if (view->subdivisions > 1 && x >= (xstop * width / view->subdivisions))
{
- gdk_cairo_set_source_color (cr, &style->text_aa[GTK_STATE_NORMAL]);
+ gtk_style_context_get_background_color (style, 0, &color);
+ gimp_gdk_rgba_shade (&color, 0.7, &dark);
+
+ gdk_cairo_set_source_rgba (cr, &dark);
cairo_move_to (cr, x + border, border);
cairo_line_to (cr, x + border, border + height - 1);
@@ -389,7 +450,10 @@ gimp_histogram_view_draw (GtkWidget *widget,
}
else if (in_selection)
{
- gdk_cairo_set_source_color (cr, &style->base[GTK_STATE_SELECTED]);
+ gtk_style_context_get_background_color (style, GTK_STATE_FLAG_SELECTED,
+ &color);
+
+ gdk_cairo_set_source_rgba (cr, &color);
cairo_move_to (cr, x + border, border);
cairo_line_to (cr, x + border, border + height - 1);
@@ -398,11 +462,12 @@ gimp_histogram_view_draw (GtkWidget *widget,
if (view->channel == GIMP_HISTOGRAM_RGB)
{
- gint c;
+ GdkRGBA black = { 0.0, 0.0, 0.0, 1.0 };
+ gint c;
for (c = 0; c < 3; c++)
gimp_histogram_view_draw_spike (view, GIMP_HISTOGRAM_RED + c, cr,
- &style->black,
+ &black,
CAIRO_OPERATOR_OVER,
NULL,
x, i, j, max, bg_max, height, border);
@@ -415,7 +480,7 @@ gimp_histogram_view_draw (GtkWidget *widget,
x, i, j, max, bg_max, height, border);
gimp_histogram_view_draw_spike (view, view->channel, cr,
- in_selection ? color_in : color_out,
+ in_selection ? &color_in : &color_out,
CAIRO_OPERATOR_OVER,
NULL,
x, i, j, max, bg_max, height, border);
@@ -423,13 +488,15 @@ gimp_histogram_view_draw (GtkWidget *widget,
else
{
gimp_histogram_view_draw_spike (view, view->channel, cr,
- in_selection ? color_in : color_out,
+ in_selection ? &color_in : &color_out,
CAIRO_OPERATOR_OVER,
- in_selection ? bg_color_in : bg_color_out,
+ in_selection ? &bg_color_in : &bg_color_out,
x, i, j, max, bg_max, height, border);
}
}
+ gtk_style_context_restore (style);
+
return FALSE;
}
@@ -437,9 +504,9 @@ static void
gimp_histogram_view_draw_spike (GimpHistogramView *view,
GimpHistogramChannel channel,
cairo_t *cr,
- const GdkColor *fg_color,
+ const GdkRGBA *fg_color,
cairo_operator_t fg_operator,
- const GdkColor *bg_color,
+ const GdkRGBA *bg_color,
gint x,
gint i,
gint j,
@@ -506,7 +573,7 @@ gimp_histogram_view_draw_spike (GimpHistogramView *view,
if (bg_color)
{
- gdk_cairo_set_source_color (cr, bg_color);
+ gdk_cairo_set_source_rgba (cr, bg_color);
cairo_move_to (cr, x + border, height + border - 1);
cairo_line_to (cr, x + border, height + border - bg_y - 1);
@@ -516,7 +583,7 @@ gimp_histogram_view_draw_spike (GimpHistogramView *view,
cairo_set_operator (cr, fg_operator);
- gdk_cairo_set_source_color (cr, fg_color);
+ gdk_cairo_set_source_rgba (cr, fg_color);
cairo_move_to (cr, x + border, height + border - 1);
cairo_line_to (cr, x + border, height + border - y - 1);
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