gtk2/gtk/gtkcsstypes.c
Benjamin Otte 43c212ac28 build: Enable -Wswitch-enum and -Wswitch-default
This patch makes that work using 1 of 2 options:

1. Add all missing enums to the switch statement
  or
2. Cast the switch argument to a uint to avoid having to do that (mostly
   for GdkEventType).

I even found a bug while doing that: clearing a GtkImage with a surface
did not notify thae surface property.

The reason for enabling this flag even though it is tedious at times is
that it is very useful when adding values to an enum, because it makes
GTK immediately warn about all the switch statements where this enum is
relevant.
And I expect changes to enums to be frequent during the GTK4 development
cycle.
2017-10-06 21:23:39 +02:00

231 lines
7.4 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 2011 Benjamin Otte <otte@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkcsstypesprivate.h"
#include "gtkcssnumbervalueprivate.h"
#include "gtkstylecontextprivate.h"
cairo_operator_t
_gtk_css_blend_mode_get_operator (GskBlendMode mode)
{
switch (mode)
{
case GSK_BLEND_MODE_COLOR:
return CAIRO_OPERATOR_HSL_COLOR;
case GSK_BLEND_MODE_COLOR_BURN:
return CAIRO_OPERATOR_COLOR_BURN;
case GSK_BLEND_MODE_COLOR_DODGE:
return CAIRO_OPERATOR_COLOR_DODGE;
case GSK_BLEND_MODE_DARKEN:
return CAIRO_OPERATOR_DARKEN;
case GSK_BLEND_MODE_DIFFERENCE:
return CAIRO_OPERATOR_DIFFERENCE;
case GSK_BLEND_MODE_EXCLUSION:
return CAIRO_OPERATOR_EXCLUSION;
case GSK_BLEND_MODE_HARD_LIGHT:
return CAIRO_OPERATOR_HARD_LIGHT;
case GSK_BLEND_MODE_SOFT_LIGHT:
return CAIRO_OPERATOR_SOFT_LIGHT;
case GSK_BLEND_MODE_HUE:
return CAIRO_OPERATOR_HSL_HUE;
case GSK_BLEND_MODE_LIGHTEN:
return CAIRO_OPERATOR_LIGHTEN;
case GSK_BLEND_MODE_LUMINOSITY:
return CAIRO_OPERATOR_HSL_LUMINOSITY;
case GSK_BLEND_MODE_MULTIPLY:
return CAIRO_OPERATOR_MULTIPLY;
case GSK_BLEND_MODE_OVERLAY:
return CAIRO_OPERATOR_OVERLAY;
case GSK_BLEND_MODE_SATURATION:
return CAIRO_OPERATOR_HSL_SATURATION;
case GSK_BLEND_MODE_SCREEN:
return CAIRO_OPERATOR_SCREEN;
case GSK_BLEND_MODE_DEFAULT:
default:
return CAIRO_OPERATOR_OVER;
}
}
GtkCssChange
_gtk_css_change_for_sibling (GtkCssChange match)
{
#define BASE_STATES ( GTK_CSS_CHANGE_CLASS \
| GTK_CSS_CHANGE_NAME \
| GTK_CSS_CHANGE_ID \
| GTK_CSS_CHANGE_FIRST_CHILD \
| GTK_CSS_CHANGE_LAST_CHILD \
| GTK_CSS_CHANGE_NTH_CHILD \
| GTK_CSS_CHANGE_NTH_LAST_CHILD \
| GTK_CSS_CHANGE_STATE )
#define KEEP_STATES ( ~(BASE_STATES|GTK_CSS_CHANGE_SOURCE|GTK_CSS_CHANGE_PARENT_STYLE) \
| GTK_CSS_CHANGE_NTH_CHILD \
| GTK_CSS_CHANGE_NTH_LAST_CHILD)
#define SIBLING_SHIFT 8
return (match & KEEP_STATES) | ((match & BASE_STATES) << SIBLING_SHIFT);
#undef BASE_STATES
#undef KEEP_STATES
#undef SIBLING_SHIFT
}
GtkCssChange
_gtk_css_change_for_child (GtkCssChange match)
{
#define BASE_STATES ( GTK_CSS_CHANGE_CLASS \
| GTK_CSS_CHANGE_NAME \
| GTK_CSS_CHANGE_ID \
| GTK_CSS_CHANGE_FIRST_CHILD \
| GTK_CSS_CHANGE_LAST_CHILD \
| GTK_CSS_CHANGE_NTH_CHILD \
| GTK_CSS_CHANGE_NTH_LAST_CHILD \
| GTK_CSS_CHANGE_STATE \
| GTK_CSS_CHANGE_SIBLING_CLASS \
| GTK_CSS_CHANGE_SIBLING_NAME \
| GTK_CSS_CHANGE_SIBLING_ID \
| GTK_CSS_CHANGE_SIBLING_FIRST_CHILD \
| GTK_CSS_CHANGE_SIBLING_LAST_CHILD \
| GTK_CSS_CHANGE_SIBLING_NTH_CHILD \
| GTK_CSS_CHANGE_SIBLING_NTH_LAST_CHILD \
| GTK_CSS_CHANGE_SIBLING_STATE )
#define PARENT_SHIFT 16
return (match & ~(BASE_STATES|GTK_CSS_CHANGE_SOURCE|GTK_CSS_CHANGE_PARENT_STYLE)) | ((match & BASE_STATES) << PARENT_SHIFT);
#undef BASE_STATES
#undef PARENT_SHIFT
}
void
gtk_css_change_print (GtkCssChange change,
GString *string)
{
const struct {
GtkCssChange flags;
const char *name;
} names[] = {
{ GTK_CSS_CHANGE_CLASS, "class" },
{ GTK_CSS_CHANGE_NAME, "name" },
{ GTK_CSS_CHANGE_ID, "id" },
{ GTK_CSS_CHANGE_FIRST_CHILD, "first-child" },
{ GTK_CSS_CHANGE_LAST_CHILD, "last-child" },
{ GTK_CSS_CHANGE_NTH_CHILD, "nth-child" },
{ GTK_CSS_CHANGE_NTH_LAST_CHILD, "nth-last-child" },
{ GTK_CSS_CHANGE_STATE, "state" },
{ GTK_CSS_CHANGE_SIBLING_CLASS, "sibling-class" },
{ GTK_CSS_CHANGE_SIBLING_NAME, "sibling-name" },
{ GTK_CSS_CHANGE_SIBLING_ID, "sibling-id" },
{ GTK_CSS_CHANGE_SIBLING_FIRST_CHILD, "sibling-first-child" },
{ GTK_CSS_CHANGE_SIBLING_LAST_CHILD, "sibling-last-child" },
{ GTK_CSS_CHANGE_SIBLING_NTH_CHILD, "sibling-nth-child" },
{ GTK_CSS_CHANGE_SIBLING_NTH_LAST_CHILD, "sibling-nth-last-child" },
{ GTK_CSS_CHANGE_SIBLING_STATE, "sibling-state" },
{ GTK_CSS_CHANGE_PARENT_CLASS, "parent-class" },
{ GTK_CSS_CHANGE_PARENT_NAME, "parent-name" },
{ GTK_CSS_CHANGE_PARENT_ID, "parent-id" },
{ GTK_CSS_CHANGE_PARENT_FIRST_CHILD, "parent-first-child" },
{ GTK_CSS_CHANGE_PARENT_LAST_CHILD, "parent-last-child" },
{ GTK_CSS_CHANGE_PARENT_NTH_CHILD, "parent-nth-child" },
{ GTK_CSS_CHANGE_PARENT_NTH_LAST_CHILD, "parent-nth-last-child" },
{ GTK_CSS_CHANGE_PARENT_STATE, "parent-state" },
{ GTK_CSS_CHANGE_PARENT_SIBLING_CLASS, "parent-sibling-" },
{ GTK_CSS_CHANGE_PARENT_SIBLING_NAME, "parent-sibling-name" },
{ GTK_CSS_CHANGE_PARENT_SIBLING_ID, "parent-sibling-id" },
{ GTK_CSS_CHANGE_PARENT_SIBLING_FIRST_CHILD, "parent-sibling-first-child" },
{ GTK_CSS_CHANGE_PARENT_SIBLING_LAST_CHILD, "parent-sibling-last-child" },
{ GTK_CSS_CHANGE_PARENT_SIBLING_NTH_CHILD, "parent-sibling-nth-child" },
{ GTK_CSS_CHANGE_PARENT_SIBLING_NTH_LAST_CHILD, "parent-sibling-nth-last-child" },
{ GTK_CSS_CHANGE_PARENT_SIBLING_STATE, "parent-sibling-state" },
{ GTK_CSS_CHANGE_SOURCE, "source" },
{ GTK_CSS_CHANGE_PARENT_STYLE, "parent-style" },
{ GTK_CSS_CHANGE_TIMESTAMP, "timestamp" },
{ GTK_CSS_CHANGE_ANIMATIONS, "animations" },
};
guint i;
gboolean first;
first = TRUE;
for (i = 0; i < G_N_ELEMENTS (names); i++)
{
if (change & names[i].flags)
{
if (first)
first = FALSE;
else
g_string_append (string, "|");
g_string_append (string, names[i].name);
}
}
}
GtkCssDimension
gtk_css_unit_get_dimension (GtkCssUnit unit)
{
switch (unit)
{
case GTK_CSS_NUMBER:
return GTK_CSS_DIMENSION_NUMBER;
case GTK_CSS_PERCENT:
return GTK_CSS_DIMENSION_PERCENTAGE;
case GTK_CSS_PX:
case GTK_CSS_PT:
case GTK_CSS_EM:
case GTK_CSS_EX:
case GTK_CSS_REM:
case GTK_CSS_PC:
case GTK_CSS_IN:
case GTK_CSS_CM:
case GTK_CSS_MM:
return GTK_CSS_DIMENSION_LENGTH;
case GTK_CSS_RAD:
case GTK_CSS_DEG:
case GTK_CSS_GRAD:
case GTK_CSS_TURN:
return GTK_CSS_DIMENSION_ANGLE;
case GTK_CSS_S:
case GTK_CSS_MS:
return GTK_CSS_DIMENSION_TIME;
default:
g_assert_not_reached ();
return GTK_CSS_DIMENSION_PERCENTAGE;
}
}
char *
gtk_css_change_to_string (GtkCssChange change)
{
GString *string = g_string_new (NULL);
gtk_css_change_print (change, string);
return g_string_free (string, FALSE);
}