[gtk+] Add API to set palettes
- From: Matthias Clasen <matthiasc src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk+] Add API to set palettes
- Date: Tue, 14 Feb 2012 22:20:26 +0000 (UTC)
commit 8f201d62d9ed32c1e33e6130d5af4a325eda0d03
Author: Matthias Clasen <mclasen redhat com>
Date: Sat Feb 4 01:45:55 2012 -0500
Add API to set palettes
I'm not really convinced by this; the API is a little complicated.
May need more thought.
gtk/gtkcolorbutton.c | 15 +++
gtk/gtkcolorchooser.c | 12 ++
gtk/gtkcolorchooser.h | 20 +++-
gtk/gtkcolorchooserdialog.c | 14 +++
gtk/gtkcolorchooserwidget.c | 241 ++++++++++++++++++++++++++++---------------
tests/testcolorchooser.c | 32 ++++++
6 files changed, 247 insertions(+), 87 deletions(-)
---
diff --git a/gtk/gtkcolorbutton.c b/gtk/gtkcolorbutton.c
index ecc8088..334805a 100644
--- a/gtk/gtkcolorbutton.c
+++ b/gtk/gtkcolorbutton.c
@@ -990,6 +990,20 @@ gtk_color_button_get_property (GObject *object,
}
}
+static void
+gtk_color_button_add_palette (GtkColorChooser *chooser,
+ gboolean horizontal,
+ gint colors_per_line,
+ gint n_colors,
+ GdkRGBA *colors)
+{
+ GtkColorButton *button = GTK_COLOR_BUTTON (chooser);
+
+ if (button->priv->cs_dialog)
+ gtk_color_chooser_add_palette (GTK_COLOR_CHOOSER (button->priv->cs_dialog),
+ horizontal, colors_per_line, n_colors, colors);
+}
+
typedef void (* get_rgba) (GtkColorChooser *, GdkRGBA *);
typedef void (* set_rgba) (GtkColorChooser *, const GdkRGBA *);
@@ -998,5 +1012,6 @@ gtk_color_button_iface_init (GtkColorChooserInterface *iface)
{
iface->get_rgba = (get_rgba)gtk_color_button_get_rgba;
iface->set_rgba = (set_rgba)gtk_color_button_set_rgba;
+ iface->add_palette = gtk_color_button_add_palette;
}
diff --git a/gtk/gtkcolorchooser.c b/gtk/gtkcolorchooser.c
index f13e99d..bc6195e 100644
--- a/gtk/gtkcolorchooser.c
+++ b/gtk/gtkcolorchooser.c
@@ -197,3 +197,15 @@ gtk_color_chooser_set_use_alpha (GtkColorChooser *chooser,
g_object_set (chooser, "use-alpha", use_alpha, NULL);
}
+
+void
+gtk_color_chooser_add_palette (GtkColorChooser *chooser,
+ gboolean horizontal,
+ gint colors_per_line,
+ gint n_colors,
+ GdkRGBA *colors)
+{
+ g_return_if_fail (GTK_IS_COLOR_CHOOSER (chooser));
+
+ GTK_COLOR_CHOOSER_GET_IFACE (chooser)->add_palette (chooser, horizontal, colors_per_line, n_colors, colors);
+}
diff --git a/gtk/gtkcolorchooser.h b/gtk/gtkcolorchooser.h
index 7a82ddf..052d52d 100644
--- a/gtk/gtkcolorchooser.h
+++ b/gtk/gtkcolorchooser.h
@@ -42,10 +42,16 @@ struct _GtkColorChooserInterface
GTypeInterface base_interface;
/* Methods */
- void (* get_rgba) (GtkColorChooser *chooser,
- GdkRGBA *color);
- void (* set_rgba) (GtkColorChooser *chooser,
- const GdkRGBA *color);
+ void (* get_rgba) (GtkColorChooser *chooser,
+ GdkRGBA *color);
+ void (* set_rgba) (GtkColorChooser *chooser,
+ const GdkRGBA *color);
+
+ void (* add_palette) (GtkColorChooser *chooser,
+ gboolean horizontal,
+ gint colors_per_line,
+ gint n_colors,
+ GdkRGBA *colors);
/* Signals */
void (* color_activated) (GtkColorChooser *chooser,
@@ -65,6 +71,12 @@ gboolean gtk_color_chooser_get_use_alpha (GtkColorChooser *chooser);
void gtk_color_chooser_set_use_alpha (GtkColorChooser *chooser,
gboolean use_alpha);
+void gtk_color_chooser_add_palette (GtkColorChooser *chooser,
+ gboolean horizontal,
+ gint colors_per_line,
+ gint n_colors,
+ GdkRGBA *colors);
+
G_END_DECLS
#endif /* __GTK_COLOR_CHOOSER_H__ */
diff --git a/gtk/gtkcolorchooserdialog.c b/gtk/gtkcolorchooserdialog.c
index 5013996..bb40067 100644
--- a/gtk/gtkcolorchooserdialog.c
+++ b/gtk/gtkcolorchooserdialog.c
@@ -254,10 +254,24 @@ gtk_color_chooser_dialog_set_rgba (GtkColorChooser *chooser,
}
static void
+gtk_color_chooser_dialog_add_palette (GtkColorChooser *chooser,
+ gboolean horizontal,
+ gint colors_per_line,
+ gint n_colors,
+ GdkRGBA *colors)
+{
+ GtkColorChooserDialog *cc = GTK_COLOR_CHOOSER_DIALOG (chooser);
+
+ gtk_color_chooser_add_palette (GTK_COLOR_CHOOSER (cc->priv->chooser),
+ horizontal, colors_per_line, n_colors, colors);
+}
+
+static void
gtk_color_chooser_dialog_iface_init (GtkColorChooserInterface *iface)
{
iface->get_rgba = gtk_color_chooser_dialog_get_rgba;
iface->set_rgba = gtk_color_chooser_dialog_set_rgba;
+ iface->add_palette = gtk_color_chooser_dialog_add_palette;
}
/**
diff --git a/gtk/gtkcolorchooserwidget.c b/gtk/gtkcolorchooserwidget.c
index 44da55e..f51242a 100644
--- a/gtk/gtkcolorchooserwidget.c
+++ b/gtk/gtkcolorchooserwidget.c
@@ -65,14 +65,14 @@ struct _GtkColorChooserWidgetPrivate
GtkWidget *editor;
GtkSizeGroup *size_group;
- GtkWidget *colors;
- GtkWidget *grays;
+ GtkWidget *custom_label;
GtkWidget *custom;
GtkWidget *button;
GtkColorSwatch *current;
gboolean use_alpha;
+ gboolean has_default_palette;
GSettings *settings;
};
@@ -209,21 +209,23 @@ static void
gtk_color_chooser_widget_set_use_alpha (GtkColorChooserWidget *cc,
gboolean use_alpha)
{
- GtkWidget *grids[3];
- gint i;
GList *children, *l;
+ GList *palettes, *p;
GtkWidget *swatch;
+ GtkWidget *grid;
cc->priv->use_alpha = use_alpha;
gtk_color_chooser_set_use_alpha (GTK_COLOR_CHOOSER (cc->priv->editor), use_alpha);
- grids[0] = cc->priv->colors;
- grids[1] = cc->priv->grays;
- grids[2] = cc->priv->custom;
-
- for (i = 0; i < 3; i++)
+ palettes = gtk_container_get_children (GTK_CONTAINER (cc->priv->palette));
+ for (p = palettes; p; p = p->next)
{
- children = gtk_container_get_children (GTK_CONTAINER (grids[i]));
+ grid = p->data;
+
+ if (!GTK_IS_GRID (grid))
+ continue;
+
+ children = gtk_container_get_children (GTK_CONTAINER (grid));
for (l = children; l; l = l->next)
{
swatch = l->data;
@@ -231,6 +233,7 @@ gtk_color_chooser_widget_set_use_alpha (GtkColorChooserWidget *cc,
}
g_list_free (children);
}
+ g_list_free (palettes);
gtk_widget_queue_draw (GTK_WIDGET (cc));
}
@@ -255,20 +258,94 @@ gtk_color_chooser_widget_set_show_editor (GtkColorChooserWidget *cc,
/* UI construction {{{1 */
static void
-gtk_color_chooser_widget_init (GtkColorChooserWidget *cc)
+add_palette (GtkColorChooserWidget *cc,
+ gboolean horizontal,
+ gint colors_per_line,
+ gint n_colors,
+ GdkRGBA *colors)
{
GtkWidget *grid;
GtkWidget *p;
- GtkWidget *alignment;
- GtkWidget *button;
- GtkWidget *label;
- gint i, j;
- gint left;
- GdkRGBA color;
- GVariant *variant;
- GVariantIter iter;
- gboolean selected;
- const gchar *default_palette[9][3] = {
+ gint line, pos;
+ gint i;
+ gint left, right;
+
+ grid = gtk_grid_new ();
+ gtk_widget_set_margin_bottom (grid, 12);
+ gtk_grid_set_row_spacing (GTK_GRID (grid), 2);
+ gtk_grid_set_column_spacing (GTK_GRID (grid), 4);
+ gtk_container_add (GTK_CONTAINER (cc->priv->palette), grid);
+
+ left = 0;
+ right = colors_per_line - 1;
+ if (gtk_widget_get_direction (GTK_WIDGET (cc)) == GTK_TEXT_DIR_RTL)
+ {
+ i = left;
+ left = right;
+ right = i;
+ }
+
+ for (i = 0; i < n_colors; i++)
+ {
+ p = gtk_color_swatch_new ();
+ gtk_color_swatch_set_rgba (GTK_COLOR_SWATCH (p), &colors[i]);
+ connect_swatch_signals (p, cc);
+
+ line = i / colors_per_line;
+ pos = i % colors_per_line;
+
+ if (horizontal)
+ {
+ gtk_grid_attach (GTK_GRID (grid), p, pos, line, 1, 1);
+ if (pos == left)
+ gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 10, 1, 1, 10);
+ else if (pos == right)
+ gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 1, 10, 10, 1);
+ else
+ gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 1, 1, 1, 1);
+ }
+ else
+ {
+ gtk_grid_attach (GTK_GRID (grid), p, line, pos, 1, 1);
+
+ if (pos == 0)
+ gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 10, 10, 1, 1);
+ else if (pos == colors_per_line - 1)
+ gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 1, 1, 10, 10);
+ else
+ gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 1, 1, 1, 1);
+ }
+ }
+
+ gtk_widget_show_all (grid);
+}
+
+static void
+remove_default_palette (GtkColorChooserWidget *cc)
+{
+ GList *children, *l;
+ GtkWidget *widget;
+
+ if (!cc->priv->has_default_palette)
+ return;
+
+ children = gtk_container_get_children (GTK_CONTAINER (cc->priv->palette));
+ for (l = children; l; l = l->next)
+ {
+ widget = l->data;
+ if (widget == cc->priv->custom_label || widget == cc->priv->custom)
+ continue;
+ gtk_container_remove (GTK_CONTAINER (cc->priv->palette), widget);
+ }
+ g_list_free (children);
+
+ cc->priv->has_default_palette = FALSE;
+}
+
+static void
+add_default_palette (GtkColorChooserWidget *cc)
+{
+ const gchar *default_colors[9][3] = {
{ "#ef2929", "#cc0000", "#a40000" }, /* Scarlet Red */
{ "#fcaf3e", "#f57900", "#ce5c00" }, /* Orange */
{ "#fce94f", "#edd400", "#c4a000" }, /* Butter */
@@ -279,7 +356,7 @@ gtk_color_chooser_widget_init (GtkColorChooserWidget *cc)
{ "#888a85", "#555753", "#2e3436" }, /* Aluminum 1 */
{ "#eeeeec", "#d3d7cf", "#babdb6" } /* Aluminum 2 */
};
- const gchar *default_grayscale[9] = {
+ const gchar *default_grays[9] = {
"#000000",
"#2e3436",
"#555753",
@@ -290,73 +367,54 @@ gtk_color_chooser_widget_init (GtkColorChooserWidget *cc)
"#f3f3f3",
"#ffffff"
};
+ GdkRGBA colors[9*3];
+ gint i, j;
- cc->priv = G_TYPE_INSTANCE_GET_PRIVATE (cc, GTK_TYPE_COLOR_CHOOSER_WIDGET, GtkColorChooserWidgetPrivate);
-
- gtk_orientable_set_orientation (GTK_ORIENTABLE (cc), GTK_ORIENTATION_VERTICAL);
- cc->priv->palette = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
- gtk_container_add (GTK_CONTAINER (cc), cc->priv->palette);
+ for (i = 0; i < 9; i++)
+ for (j = 0; j < 3; j++)
+ gdk_rgba_parse (&colors[i*3 + j], default_colors[i][j]);
- cc->priv->colors = grid = gtk_grid_new ();
- gtk_widget_set_margin_bottom (grid, 12);
- gtk_grid_set_row_spacing (GTK_GRID (grid), 2);
- gtk_grid_set_column_spacing (GTK_GRID (grid), 4);
- gtk_container_add (GTK_CONTAINER (cc->priv->palette), grid);
+ add_palette (cc, FALSE, 3, 9*3, colors);
for (i = 0; i < 9; i++)
- {
- for (j = 0; j < 3; j++)
- {
- gdk_rgba_parse (&color, default_palette[i][j]);
-
- p = gtk_color_swatch_new ();
- connect_swatch_signals (p, cc);
+ gdk_rgba_parse (&colors[i], default_grays[i]);
- if (j == 0)
- gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 10, 10, 1, 1);
- else if (j == 2)
- gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 1, 1, 10, 10);
- else
- gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 1, 1, 1, 1);
+ add_palette (cc, TRUE, 9, 9, colors);
- gtk_color_swatch_set_rgba (GTK_COLOR_SWATCH (p), &color);
- gtk_grid_attach (GTK_GRID (grid), p, i, j, 1, 1);
- }
- }
+ cc->priv->has_default_palette = TRUE;
+}
- cc->priv->grays = grid = gtk_grid_new ();
- g_object_set (grid, "margin-bottom", 18, NULL);
- gtk_grid_set_column_spacing (GTK_GRID (grid), 4);
- gtk_container_add (GTK_CONTAINER (cc->priv->palette), grid);
+static void
+gtk_color_chooser_widget_init (GtkColorChooserWidget *cc)
+{
+ GtkWidget *grid;
+ GtkWidget *p;
+ GtkWidget *alignment;
+ GtkWidget *button;
+ GtkWidget *label;
+ gint i;
+ GdkRGBA color;
+ GVariant *variant;
+ GVariantIter iter;
+ gboolean selected;
- left = (gtk_widget_get_direction (GTK_WIDGET (cc)) == GTK_TEXT_DIR_LTR) ? 0 : 8;
+ cc->priv = G_TYPE_INSTANCE_GET_PRIVATE (cc, GTK_TYPE_COLOR_CHOOSER_WIDGET, GtkColorChooserWidgetPrivate);
- for (i = 0; i < 9; i++)
- {
- gdk_rgba_parse (&color, default_grayscale[i]);
-
- p = gtk_color_swatch_new ();
- connect_swatch_signals (p, cc);
- if (i == left)
- gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 10, 1, 1, 10);
- else if (i == (8 - left))
- gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 1, 10, 10, 1);
- else
- gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (p), 1, 1, 1, 1);
-
- gtk_color_swatch_set_rgba (GTK_COLOR_SWATCH (p), &color);
- gtk_grid_attach (GTK_GRID (grid), p, i, 0, 1, 1);
- }
+ gtk_orientable_set_orientation (GTK_ORIENTABLE (cc), GTK_ORIENTATION_VERTICAL);
+ cc->priv->palette = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+ gtk_container_add (GTK_CONTAINER (cc), cc->priv->palette);
- /* translators: label for the custom section in the color chooser */
- label = gtk_label_new (_("Custom"));
- gtk_widget_set_halign (label, GTK_ALIGN_START);
- gtk_container_add (GTK_CONTAINER (cc->priv->palette), label);
+ add_default_palette (cc);
cc->priv->custom = grid = gtk_grid_new ();
g_object_set (grid, "margin-top", 12, NULL);
gtk_grid_set_column_spacing (GTK_GRID (grid), 4);
- gtk_container_add (GTK_CONTAINER (cc->priv->palette), grid);
+ gtk_box_pack_end (GTK_BOX (cc->priv->palette), grid, FALSE, TRUE, 0);
+
+ /* translators: label for the custom section in the color chooser */
+ cc->priv->custom_label = label = gtk_label_new (_("Custom"));
+ gtk_widget_set_halign (label, GTK_ALIGN_START);
+ gtk_box_pack_end (GTK_BOX (cc->priv->palette), label, FALSE, TRUE, 0);
cc->priv->button = button = gtk_color_swatch_new ();
gtk_color_swatch_set_corner_radii (GTK_COLOR_SWATCH (button), 10, 10, 10, 10);
@@ -369,6 +427,7 @@ gtk_color_chooser_widget_init (GtkColorChooserWidget *cc)
variant = g_settings_get_value (cc->priv->settings, "custom-colors");
g_variant_iter_init (&iter, variant);
i = 0;
+ p = NULL;
while (g_variant_iter_loop (&iter, "(dddd)", &color.red, &color.green, &color.blue, &color.alpha))
{
i++;
@@ -586,18 +645,19 @@ gtk_color_chooser_widget_set_rgba (GtkColorChooser *chooser,
{
GtkColorChooserWidget *cc = GTK_COLOR_CHOOSER_WIDGET (chooser);
GList *children, *l;
+ GList *palettes, *p;
GtkColorSwatch *swatch;
+ GtkWidget *grid;
GdkRGBA c;
- GtkWidget *grids[3];
- gint i;
-
- grids[0] = cc->priv->colors;
- grids[1] = cc->priv->grays;
- grids[2] = cc->priv->custom;
- for (i = 0; i < 3; i++)
+ palettes = gtk_container_get_children (GTK_CONTAINER (cc->priv->palette));
+ for (p = palettes; p; p = p->next)
{
- children = gtk_container_get_children (GTK_CONTAINER (grids[i]));
+ grid = p->data;
+ if (!GTK_IS_GRID (grid))
+ continue;
+
+ children = gtk_container_get_children (GTK_CONTAINER (grid));
for (l = children; l; l = l->next)
{
swatch = l->data;
@@ -613,15 +673,30 @@ gtk_color_chooser_widget_set_rgba (GtkColorChooser *chooser,
}
g_list_free (children);
}
+ g_list_free (palettes);
add_custom_color (cc, color);
}
static void
+gtk_color_chooser_widget_add_palette (GtkColorChooser *chooser,
+ gboolean horizontal,
+ gint colors_per_line,
+ gint n_colors,
+ GdkRGBA *colors)
+{
+ GtkColorChooserWidget *cc = GTK_COLOR_CHOOSER_WIDGET (chooser);
+
+ remove_default_palette (cc);
+ add_palette (cc, horizontal, colors_per_line, n_colors, colors);
+}
+
+static void
gtk_color_chooser_widget_iface_init (GtkColorChooserInterface *iface)
{
iface->get_rgba = gtk_color_chooser_widget_get_rgba;
iface->set_rgba = gtk_color_chooser_widget_set_rgba;
+ iface->add_palette = gtk_color_chooser_widget_add_palette;
}
/* Public API {{{1 */
diff --git a/tests/testcolorchooser.c b/tests/testcolorchooser.c
index 76005e5..63911ae 100644
--- a/tests/testcolorchooser.c
+++ b/tests/testcolorchooser.c
@@ -52,6 +52,38 @@ main (int argc, char *argv[])
g_print ("starting in edit mode\n");
g_object_set (dialog, "show-editor", TRUE, NULL);
}
+ else if (g_strcmp0 (argv[i], "--palette") == 0)
+ {
+ const gchar *c[4] = { "red", "maroon", "yellow", "green" };
+ GdkRGBA color;
+ GdkRGBA colors[36];
+ gint i,j;
+ gdouble f[5] = { 0.2, 0.35, 0.5, 0.65, 0.8 };
+
+ g_print ("setting custom palette\n");
+ for (i = 0; i < 4; i++)
+ {
+ gdk_rgba_parse (&color, c[i]);
+ for (j = 0; j < 5; j++)
+ {
+ colors[i*9 + j].red = f[j]*color.red;
+ colors[i*9 + j].green = f[j]*color.green;
+ colors[i*9 + j].blue = f[j]*color.blue;
+ colors[i*9 + j].alpha = 1;
+ }
+ for (j = 5; j < 9; j++)
+ {
+ colors[i*9 + j].red = f[9-j]*color.red + (1-f[9-j]);
+ colors[i*9 + j].green = f[9-j]*color.green + (1-f[9-j]);
+ colors[i*9 + j].blue = f[9-j]*color.blue + (1-f[9-j]);
+ colors[i*9 + j].alpha = 1;
+ }
+ }
+ gtk_color_chooser_add_palette (GTK_COLOR_CHOOSER (dialog),
+ FALSE,
+ 9, 36,
+ colors);
+ }
}
g_signal_connect (dialog, "notify::color", G_CALLBACK (color_changed), NULL);
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