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Implement essential color cycling feature

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2000-11-15  Havoc Pennington  <hp@redhat.com>

	* gtk/testtext.c: Implement essential color cycling feature
This commit is contained in:
Havoc Pennington 2000-11-15 23:25:08 +00:00 committed by Havoc Pennington
parent 152f160a8a
commit ac5c0dbc98
9 changed files with 576 additions and 0 deletions
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4
ChangeLog
View File

@ -1,3 +1,7 @@
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/testtext.c: Implement essential color cycling feature
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Invalidate the side windows

4
ChangeLog.pre-2-0
View File

@ -1,3 +1,7 @@
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/testtext.c: Implement essential color cycling feature
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Invalidate the side windows

4
ChangeLog.pre-2-10
View File

@ -1,3 +1,7 @@
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/testtext.c: Implement essential color cycling feature
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Invalidate the side windows

4
ChangeLog.pre-2-2
View File

@ -1,3 +1,7 @@
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/testtext.c: Implement essential color cycling feature
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Invalidate the side windows

4
ChangeLog.pre-2-4
View File

@ -1,3 +1,7 @@
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/testtext.c: Implement essential color cycling feature
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Invalidate the side windows

4
ChangeLog.pre-2-6
View File

@ -1,3 +1,7 @@
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/testtext.c: Implement essential color cycling feature
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Invalidate the side windows

4
ChangeLog.pre-2-8
View File

@ -1,3 +1,7 @@
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/testtext.c: Implement essential color cycling feature
2000-11-15 Havoc Pennington <hp@redhat.com>
* gtk/gtktextview.c (changed_handler): Invalidate the side windows

274
gtk/testtext.c
View File

@ -24,6 +24,9 @@ struct _Buffer
GtkTextTag *not_editable_tag;
GtkTextTag *found_text_tag;
GtkTextTag *custom_tabs_tag;
GSList *color_tags;
guint color_cycle_timeout;
gdouble start_hue;
};
struct _View
@ -51,6 +54,9 @@ static void buffer_search_forward (Buffer *buffer,
static void buffer_search_backward (Buffer *buffer,
const char *str,
View *view);
static void buffer_set_colors (Buffer *buffer,
gboolean enabled);
static void buffer_cycle_colors (Buffer *buffer);
static View *view_from_widget (GtkWidget *widget);
@ -905,6 +911,16 @@ do_cursor_visible_changed (gpointer callback_data,
gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view->text_view), callback_action);
}
static void
do_color_cycle_changed (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
buffer_set_colors (view->buffer, callback_action);
}
static void
do_apply_editable (gpointer callback_data,
guint callback_action,
@ -986,6 +1002,69 @@ do_apply_tabs (gpointer callback_data,
}
}
static void
do_apply_colors (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
Buffer *buffer = view->buffer;
GtkTextIter start;
GtkTextIter end;
if (gtk_text_buffer_get_selection_bounds (view->buffer->buffer,
&start, &end))
{
if (!callback_action)
{
GSList *tmp;
tmp = buffer->color_tags;
while (tmp != NULL)
{
gtk_text_buffer_remove_tag (view->buffer->buffer,
tmp->data,
&start, &end);
tmp = g_slist_next (tmp);
}
}
else
{
GSList *tmp;
tmp = buffer->color_tags;
while (TRUE)
{
GtkTextIter next;
gboolean done = FALSE;
next = start;
gtk_text_iter_next_char (&next);
gtk_text_iter_next_char (&next);
if (gtk_text_iter_compare (&next, &end) > 0)
{
next = end;
done = TRUE;
}
gtk_text_buffer_apply_tag (view->buffer->buffer,
tmp->data,
&start, &next);
start = next;
if (done)
return;
tmp = g_slist_next (tmp);
if (tmp == NULL)
tmp = buffer->color_tags;
}
}
}
}
enum
{
RESPONSE_FORWARD,
@ -1142,6 +1221,9 @@ static GtkItemFactoryEntry menu_items[] =
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Sane spacing", NULL, do_spacing_changed, FALSE, "<RadioItem>" },
{ "/Settings/Funky spacing", NULL, do_spacing_changed, TRUE, "/Settings/Sane spacing" },
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Don't cycle color tags", NULL, do_color_cycle_changed, FALSE, "<RadioItem>" },
{ "/Settings/Cycle colors", NULL, do_color_cycle_changed, TRUE, "/Settings/Don't cycle color tags" },
{ "/_Attributes", NULL, 0, 0, "<Branch>" },
{ "/Attributes/Editable", NULL, do_apply_editable, TRUE, NULL },
{ "/Attributes/Not editable", NULL, do_apply_editable, FALSE, NULL },
@ -1149,6 +1231,8 @@ static GtkItemFactoryEntry menu_items[] =
{ "/Attributes/Visible", NULL, do_apply_invisible, TRUE, NULL },
{ "/Attributes/Custom tabs", NULL, do_apply_tabs, FALSE, NULL },
{ "/Attributes/Default tabs", NULL, do_apply_tabs, TRUE, NULL },
{ "/Attributes/Color cycles", NULL, do_apply_colors, TRUE, NULL },
{ "/Attributes/No colors", NULL, do_apply_colors, FALSE, NULL },
{ "/_Test", NULL, 0, 0, "<Branch>" },
{ "/Test/_Example", NULL, do_example, 0, NULL },
};
@ -1298,11 +1382,14 @@ check_buffer_saved (Buffer *buffer)
return TRUE;
}
#define N_COLORS 16
static Buffer *
create_buffer (void)
{
Buffer *buffer;
PangoTabArray *tabs;
gint i;
buffer = g_new (Buffer, 1);
@ -1312,6 +1399,22 @@ create_buffer (void)
buffer->filename = NULL;
buffer->untitled_serial = -1;
buffer->color_tags = NULL;
buffer->color_cycle_timeout = 0;
buffer->start_hue = 0.0;
i = 0;
while (i < N_COLORS)
{
GtkTextTag *tag;
tag = gtk_text_buffer_create_tag (buffer->buffer, NULL);
buffer->color_tags = g_slist_prepend (buffer->color_tags, tag);
++i;
}
buffer->invisible_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL);
gtk_object_set (GTK_OBJECT (buffer->invisible_tag),
"invisible", TRUE,
@ -1480,6 +1583,7 @@ buffer_unref (Buffer *buffer)
buffer->refcount--;
if (buffer->refcount == 0)
{
buffer_set_colors (buffer, FALSE);
buffers = g_slist_remove (buffers, buffer);
gtk_object_unref (GTK_OBJECT (buffer->buffer));
g_free (buffer->filename);
@ -1487,6 +1591,176 @@ buffer_unref (Buffer *buffer)
}
}
static void
hsv_to_rgb (gdouble *h,
gdouble *s,
gdouble *v)
{
gdouble hue, saturation, value;
gdouble f, p, q, t;
if (*s == 0.0)
{
*h = *v;
*s = *v;
*v = *v; /* heh */
}
else
{
hue = *h * 6.0;
saturation = *s;
value = *v;
if (hue >= 6.0)
hue = 0.0;
f = hue - (int) hue;
p = value * (1.0 - saturation);
q = value * (1.0 - saturation * f);
t = value * (1.0 - saturation * (1.0 - f));
switch ((int) hue)
{
case 0:
*h = value;
*s = t;
*v = p;
break;
case 1:
*h = q;
*s = value;
*v = p;
break;
case 2:
*h = p;
*s = value;
*v = t;
break;
case 3:
*h = p;
*s = q;
*v = value;
break;
case 4:
*h = t;
*s = p;
*v = value;
break;
case 5:
*h = value;
*s = p;
*v = q;
break;
default:
g_assert_not_reached ();
}
}
}
static void
hue_to_color (gdouble hue,
GdkColor *color)
{
gdouble h, s, v;
h = hue;
s = 1.0;
v = 1.0;
g_return_if_fail (hue <= 1.0);
hsv_to_rgb (&h, &s, &v);
color->red = h * 65535;
color->green = s * 65535;
color->blue = v * 65535;
}
static gint
color_cycle_timeout (gpointer data)
{
Buffer *buffer = data;
buffer_cycle_colors (buffer);
return TRUE;
}
static void
buffer_set_colors (Buffer *buffer,
gboolean enabled)
{
GSList *tmp;
gdouble hue = 0.0;
if (enabled && buffer->color_cycle_timeout == 0)
buffer->color_cycle_timeout = gtk_timeout_add (500, color_cycle_timeout, buffer);
else if (!enabled && buffer->color_cycle_timeout != 0)
{
gtk_timeout_remove (buffer->color_cycle_timeout);
buffer->color_cycle_timeout = 0;
}
tmp = buffer->color_tags;
while (tmp != NULL)
{
if (enabled)
{
GdkColor color;
hue_to_color (hue, &color);
gtk_object_set (GTK_OBJECT (tmp->data),
"foreground_gdk", &color,
NULL);
}
else
gtk_object_set (GTK_OBJECT (tmp->data),
"foreground_set", FALSE,
NULL);
hue += 1.0 / N_COLORS;
tmp = g_slist_next (tmp);
}
}
static void
buffer_cycle_colors (Buffer *buffer)
{
GSList *tmp;
gdouble hue = buffer->start_hue;
tmp = buffer->color_tags;
while (tmp != NULL)
{
GdkColor color;
hue_to_color (hue, &color);
gtk_object_set (GTK_OBJECT (tmp->data),
"foreground_gdk", &color,
NULL);
hue += 1.0 / N_COLORS;
if (hue > 1.0)
hue = 0.0;
tmp = g_slist_next (tmp);
}
buffer->start_hue += 1.0 / N_COLORS;
if (buffer->start_hue > 1.0)
buffer->start_hue = 0.0;
}
static void
close_view (View *view)
{

274
tests/testtext.c
View File

@ -24,6 +24,9 @@ struct _Buffer
GtkTextTag *not_editable_tag;
GtkTextTag *found_text_tag;
GtkTextTag *custom_tabs_tag;
GSList *color_tags;
guint color_cycle_timeout;
gdouble start_hue;
};
struct _View
@ -51,6 +54,9 @@ static void buffer_search_forward (Buffer *buffer,
static void buffer_search_backward (Buffer *buffer,
const char *str,
View *view);
static void buffer_set_colors (Buffer *buffer,
gboolean enabled);
static void buffer_cycle_colors (Buffer *buffer);
static View *view_from_widget (GtkWidget *widget);
@ -905,6 +911,16 @@ do_cursor_visible_changed (gpointer callback_data,
gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view->text_view), callback_action);
}
static void
do_color_cycle_changed (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
buffer_set_colors (view->buffer, callback_action);
}
static void
do_apply_editable (gpointer callback_data,
guint callback_action,
@ -986,6 +1002,69 @@ do_apply_tabs (gpointer callback_data,
}
}
static void
do_apply_colors (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
Buffer *buffer = view->buffer;
GtkTextIter start;
GtkTextIter end;
if (gtk_text_buffer_get_selection_bounds (view->buffer->buffer,
&start, &end))
{
if (!callback_action)
{
GSList *tmp;
tmp = buffer->color_tags;
while (tmp != NULL)
{
gtk_text_buffer_remove_tag (view->buffer->buffer,
tmp->data,
&start, &end);
tmp = g_slist_next (tmp);
}
}
else
{
GSList *tmp;
tmp = buffer->color_tags;
while (TRUE)
{
GtkTextIter next;
gboolean done = FALSE;
next = start;
gtk_text_iter_next_char (&next);
gtk_text_iter_next_char (&next);
if (gtk_text_iter_compare (&next, &end) > 0)
{
next = end;
done = TRUE;
}
gtk_text_buffer_apply_tag (view->buffer->buffer,
tmp->data,
&start, &next);
start = next;
if (done)
return;
tmp = g_slist_next (tmp);
if (tmp == NULL)
tmp = buffer->color_tags;
}
}
}
}
enum
{
RESPONSE_FORWARD,
@ -1142,6 +1221,9 @@ static GtkItemFactoryEntry menu_items[] =
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Sane spacing", NULL, do_spacing_changed, FALSE, "<RadioItem>" },
{ "/Settings/Funky spacing", NULL, do_spacing_changed, TRUE, "/Settings/Sane spacing" },
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Don't cycle color tags", NULL, do_color_cycle_changed, FALSE, "<RadioItem>" },
{ "/Settings/Cycle colors", NULL, do_color_cycle_changed, TRUE, "/Settings/Don't cycle color tags" },
{ "/_Attributes", NULL, 0, 0, "<Branch>" },
{ "/Attributes/Editable", NULL, do_apply_editable, TRUE, NULL },
{ "/Attributes/Not editable", NULL, do_apply_editable, FALSE, NULL },
@ -1149,6 +1231,8 @@ static GtkItemFactoryEntry menu_items[] =
{ "/Attributes/Visible", NULL, do_apply_invisible, TRUE, NULL },
{ "/Attributes/Custom tabs", NULL, do_apply_tabs, FALSE, NULL },
{ "/Attributes/Default tabs", NULL, do_apply_tabs, TRUE, NULL },
{ "/Attributes/Color cycles", NULL, do_apply_colors, TRUE, NULL },
{ "/Attributes/No colors", NULL, do_apply_colors, FALSE, NULL },
{ "/_Test", NULL, 0, 0, "<Branch>" },
{ "/Test/_Example", NULL, do_example, 0, NULL },
};
@ -1298,11 +1382,14 @@ check_buffer_saved (Buffer *buffer)
return TRUE;
}
#define N_COLORS 16
static Buffer *
create_buffer (void)
{
Buffer *buffer;
PangoTabArray *tabs;
gint i;
buffer = g_new (Buffer, 1);
@ -1312,6 +1399,22 @@ create_buffer (void)
buffer->filename = NULL;
buffer->untitled_serial = -1;
buffer->color_tags = NULL;
buffer->color_cycle_timeout = 0;
buffer->start_hue = 0.0;
i = 0;
while (i < N_COLORS)
{
GtkTextTag *tag;
tag = gtk_text_buffer_create_tag (buffer->buffer, NULL);
buffer->color_tags = g_slist_prepend (buffer->color_tags, tag);
++i;
}
buffer->invisible_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL);
gtk_object_set (GTK_OBJECT (buffer->invisible_tag),
"invisible", TRUE,
@ -1480,6 +1583,7 @@ buffer_unref (Buffer *buffer)
buffer->refcount--;
if (buffer->refcount == 0)
{
buffer_set_colors (buffer, FALSE);
buffers = g_slist_remove (buffers, buffer);
gtk_object_unref (GTK_OBJECT (buffer->buffer));
g_free (buffer->filename);
@ -1487,6 +1591,176 @@ buffer_unref (Buffer *buffer)
}
}
static void
hsv_to_rgb (gdouble *h,
gdouble *s,
gdouble *v)
{
gdouble hue, saturation, value;
gdouble f, p, q, t;
if (*s == 0.0)
{
*h = *v;
*s = *v;
*v = *v; /* heh */
}
else
{
hue = *h * 6.0;
saturation = *s;
value = *v;
if (hue >= 6.0)
hue = 0.0;
f = hue - (int) hue;
p = value * (1.0 - saturation);
q = value * (1.0 - saturation * f);
t = value * (1.0 - saturation * (1.0 - f));
switch ((int) hue)
{
case 0:
*h = value;
*s = t;
*v = p;
break;
case 1:
*h = q;
*s = value;
*v = p;
break;
case 2:
*h = p;
*s = value;
*v = t;
break;
case 3:
*h = p;
*s = q;
*v = value;
break;
case 4:
*h = t;
*s = p;
*v = value;
break;
case 5:
*h = value;
*s = p;
*v = q;
break;
default:
g_assert_not_reached ();
}
}
}
static void
hue_to_color (gdouble hue,
GdkColor *color)
{
gdouble h, s, v;
h = hue;
s = 1.0;
v = 1.0;
g_return_if_fail (hue <= 1.0);
hsv_to_rgb (&h, &s, &v);
color->red = h * 65535;
color->green = s * 65535;
color->blue = v * 65535;
}
static gint
color_cycle_timeout (gpointer data)
{
Buffer *buffer = data;
buffer_cycle_colors (buffer);
return TRUE;
}
static void
buffer_set_colors (Buffer *buffer,
gboolean enabled)
{
GSList *tmp;
gdouble hue = 0.0;
if (enabled && buffer->color_cycle_timeout == 0)
buffer->color_cycle_timeout = gtk_timeout_add (500, color_cycle_timeout, buffer);
else if (!enabled && buffer->color_cycle_timeout != 0)
{
gtk_timeout_remove (buffer->color_cycle_timeout);
buffer->color_cycle_timeout = 0;
}
tmp = buffer->color_tags;
while (tmp != NULL)
{
if (enabled)
{
GdkColor color;
hue_to_color (hue, &color);
gtk_object_set (GTK_OBJECT (tmp->data),
"foreground_gdk", &color,
NULL);
}
else
gtk_object_set (GTK_OBJECT (tmp->data),
"foreground_set", FALSE,
NULL);
hue += 1.0 / N_COLORS;
tmp = g_slist_next (tmp);
}
}
static void
buffer_cycle_colors (Buffer *buffer)
{
GSList *tmp;
gdouble hue = buffer->start_hue;
tmp = buffer->color_tags;
while (tmp != NULL)
{
GdkColor color;
hue_to_color (hue, &color);
gtk_object_set (GTK_OBJECT (tmp->data),
"foreground_gdk", &color,
NULL);
hue += 1.0 / N_COLORS;
if (hue > 1.0)
hue = 0.0;
tmp = g_slist_next (tmp);
}
buffer->start_hue += 1.0 / N_COLORS;
if (buffer->start_hue > 1.0)
buffer->start_hue = 0.0;
}
static void
close_view (View *view)
{