forked from AuroraMiddleware/gtk
1109 lines
39 KiB
C
1109 lines
39 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkcsstransformvalueprivate.h"
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#include <math.h>
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#include <string.h>
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#include "gtkcssnumbervalueprivate.h"
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#include "gtktransform.h"
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typedef union _GtkCssTransform GtkCssTransform;
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typedef enum {
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GTK_CSS_TRANSFORM_NONE,
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GTK_CSS_TRANSFORM_MATRIX,
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GTK_CSS_TRANSFORM_TRANSLATE,
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GTK_CSS_TRANSFORM_ROTATE,
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GTK_CSS_TRANSFORM_SCALE,
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GTK_CSS_TRANSFORM_SKEW,
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GTK_CSS_TRANSFORM_SKEW_X,
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GTK_CSS_TRANSFORM_SKEW_Y
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} GtkCssTransformType;
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union _GtkCssTransform {
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GtkCssTransformType type;
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struct {
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GtkCssTransformType type;
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graphene_matrix_t matrix;
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} matrix;
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struct {
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GtkCssTransformType type;
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GtkCssValue *x;
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GtkCssValue *y;
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GtkCssValue *z;
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} translate, scale;
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struct {
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GtkCssTransformType type;
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GtkCssValue *x;
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GtkCssValue *y;
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} skew;
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struct {
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GtkCssTransformType type;
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GtkCssValue *x;
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GtkCssValue *y;
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GtkCssValue *z;
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GtkCssValue *angle;
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} rotate;
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struct {
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GtkCssTransformType type;
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GtkCssValue *skew;
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} skew_x, skew_y;
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};
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struct _GtkCssValue {
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GTK_CSS_VALUE_BASE
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guint n_transforms;
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GtkCssTransform transforms[1];
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};
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static GtkCssValue * gtk_css_transform_value_alloc (guint n_values);
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static gboolean gtk_css_transform_value_is_none (const GtkCssValue *value);
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static void
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gtk_css_transform_clear (GtkCssTransform *transform)
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{
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switch (transform->type)
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{
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case GTK_CSS_TRANSFORM_MATRIX:
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break;
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case GTK_CSS_TRANSFORM_TRANSLATE:
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_gtk_css_value_unref (transform->translate.x);
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_gtk_css_value_unref (transform->translate.y);
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_gtk_css_value_unref (transform->translate.z);
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break;
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case GTK_CSS_TRANSFORM_ROTATE:
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_gtk_css_value_unref (transform->rotate.x);
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_gtk_css_value_unref (transform->rotate.y);
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_gtk_css_value_unref (transform->rotate.z);
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_gtk_css_value_unref (transform->rotate.angle);
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break;
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case GTK_CSS_TRANSFORM_SCALE:
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_gtk_css_value_unref (transform->scale.x);
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_gtk_css_value_unref (transform->scale.y);
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_gtk_css_value_unref (transform->scale.z);
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break;
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case GTK_CSS_TRANSFORM_SKEW:
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_gtk_css_value_unref (transform->skew.x);
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_gtk_css_value_unref (transform->skew.y);
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break;
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case GTK_CSS_TRANSFORM_SKEW_X:
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_gtk_css_value_unref (transform->skew_x.skew);
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break;
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case GTK_CSS_TRANSFORM_SKEW_Y:
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_gtk_css_value_unref (transform->skew_y.skew);
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break;
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case GTK_CSS_TRANSFORM_NONE:
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default:
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g_assert_not_reached ();
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break;
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}
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}
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static void
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gtk_css_transform_init_identity (GtkCssTransform *transform,
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GtkCssTransformType type)
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{
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switch (type)
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{
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case GTK_CSS_TRANSFORM_MATRIX:
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graphene_matrix_init_identity (&transform->matrix.matrix);
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break;
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case GTK_CSS_TRANSFORM_TRANSLATE:
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transform->translate.x = _gtk_css_number_value_new (0, GTK_CSS_PX);
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transform->translate.y = _gtk_css_number_value_new (0, GTK_CSS_PX);
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transform->translate.z = _gtk_css_number_value_new (0, GTK_CSS_PX);
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break;
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case GTK_CSS_TRANSFORM_ROTATE:
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transform->rotate.x = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
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transform->rotate.y = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
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transform->rotate.z = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
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transform->rotate.angle = _gtk_css_number_value_new (0, GTK_CSS_DEG);
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break;
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case GTK_CSS_TRANSFORM_SCALE:
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transform->scale.x = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
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transform->scale.y = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
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transform->scale.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
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break;
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case GTK_CSS_TRANSFORM_SKEW:
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transform->skew.x = _gtk_css_number_value_new (0, GTK_CSS_DEG);
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transform->skew.y = _gtk_css_number_value_new (0, GTK_CSS_DEG);
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break;
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case GTK_CSS_TRANSFORM_SKEW_X:
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transform->skew_x.skew = _gtk_css_number_value_new (0, GTK_CSS_DEG);
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break;
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case GTK_CSS_TRANSFORM_SKEW_Y:
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transform->skew_y.skew = _gtk_css_number_value_new (0, GTK_CSS_DEG);
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break;
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case GTK_CSS_TRANSFORM_NONE:
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default:
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g_assert_not_reached ();
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break;
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}
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transform->type = type;
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}
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static GtkTransform *
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gtk_css_transform_apply (const GtkCssTransform *transform,
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GtkTransform *next)
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{
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graphene_matrix_t skew;
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switch (transform->type)
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{
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case GTK_CSS_TRANSFORM_MATRIX:
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return gtk_transform_matrix (next, &transform->matrix.matrix);
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case GTK_CSS_TRANSFORM_TRANSLATE:
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return gtk_transform_translate_3d (next,
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&GRAPHENE_POINT3D_INIT (
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_gtk_css_number_value_get (transform->translate.x, 100),
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_gtk_css_number_value_get (transform->translate.y, 100),
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_gtk_css_number_value_get (transform->translate.z, 100)
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));
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case GTK_CSS_TRANSFORM_ROTATE:
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{
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graphene_vec3_t axis;
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graphene_vec3_init (&axis,
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_gtk_css_number_value_get (transform->rotate.x, 1),
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_gtk_css_number_value_get (transform->rotate.y, 1),
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_gtk_css_number_value_get (transform->rotate.z, 1));
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return gtk_transform_rotate_3d (next,
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_gtk_css_number_value_get (transform->rotate.angle, 100),
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&axis);
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}
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case GTK_CSS_TRANSFORM_SCALE:
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return gtk_transform_scale_3d (next,
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_gtk_css_number_value_get (transform->scale.x, 1),
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_gtk_css_number_value_get (transform->scale.y, 1),
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_gtk_css_number_value_get (transform->scale.z, 1));
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break;
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case GTK_CSS_TRANSFORM_SKEW:
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graphene_matrix_init_skew (&skew,
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_gtk_css_number_value_get (transform->skew.x, 100) / 180.0f * G_PI,
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_gtk_css_number_value_get (transform->skew.y, 100) / 180.0f * G_PI);
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return gtk_transform_matrix (next, &skew);
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case GTK_CSS_TRANSFORM_SKEW_X:
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graphene_matrix_init_skew (&skew,
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_gtk_css_number_value_get (transform->skew_x.skew, 100) / 180.0f * G_PI,
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0);
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return gtk_transform_matrix (next, &skew);
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case GTK_CSS_TRANSFORM_SKEW_Y:
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graphene_matrix_init_skew (&skew,
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0,
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_gtk_css_number_value_get (transform->skew_y.skew, 100) / 180.0f * G_PI);
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return gtk_transform_matrix (next, &skew);
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case GTK_CSS_TRANSFORM_NONE:
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default:
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g_assert_not_reached ();
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break;
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}
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}
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/* NB: The returned matrix may be invalid */
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static GtkTransform *
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gtk_css_transform_value_compute_transform (const GtkCssValue *value)
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{
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GtkTransform *transform;
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guint i;
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transform = NULL;
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for (i = 0; i < value->n_transforms; i++)
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{
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transform = gtk_css_transform_apply (&value->transforms[i], transform);
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}
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return transform;
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}
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static void
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gtk_css_value_transform_free (GtkCssValue *value)
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{
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guint i;
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for (i = 0; i < value->n_transforms; i++)
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{
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gtk_css_transform_clear (&value->transforms[i]);
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}
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g_slice_free1 (sizeof (GtkCssValue) + sizeof (GtkCssTransform) * (value->n_transforms - 1), value);
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}
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/* returns TRUE if dest == src */
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static gboolean
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gtk_css_transform_compute (GtkCssTransform *dest,
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GtkCssTransform *src,
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guint property_id,
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GtkStyleProvider *provider,
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GtkCssStyle *style,
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GtkCssStyle *parent_style)
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{
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dest->type = src->type;
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switch (src->type)
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{
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case GTK_CSS_TRANSFORM_MATRIX:
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return TRUE;
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case GTK_CSS_TRANSFORM_TRANSLATE:
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dest->translate.x = _gtk_css_value_compute (src->translate.x, property_id, provider, style, parent_style);
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dest->translate.y = _gtk_css_value_compute (src->translate.y, property_id, provider, style, parent_style);
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dest->translate.z = _gtk_css_value_compute (src->translate.z, property_id, provider, style, parent_style);
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return dest->translate.x == src->translate.x
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&& dest->translate.y == src->translate.y
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&& dest->translate.z == src->translate.z;
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case GTK_CSS_TRANSFORM_ROTATE:
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dest->rotate.x = _gtk_css_value_compute (src->rotate.x, property_id, provider, style, parent_style);
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dest->rotate.y = _gtk_css_value_compute (src->rotate.y, property_id, provider, style, parent_style);
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dest->rotate.z = _gtk_css_value_compute (src->rotate.z, property_id, provider, style, parent_style);
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dest->rotate.angle = _gtk_css_value_compute (src->rotate.angle, property_id, provider, style, parent_style);
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return dest->rotate.x == src->rotate.x
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&& dest->rotate.y == src->rotate.y
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&& dest->rotate.z == src->rotate.z
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&& dest->rotate.angle == src->rotate.angle;
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case GTK_CSS_TRANSFORM_SCALE:
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dest->scale.x = _gtk_css_value_compute (src->scale.x, property_id, provider, style, parent_style);
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dest->scale.y = _gtk_css_value_compute (src->scale.y, property_id, provider, style, parent_style);
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dest->scale.z = _gtk_css_value_compute (src->scale.z, property_id, provider, style, parent_style);
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return dest->scale.x == src->scale.x
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&& dest->scale.y == src->scale.y
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&& dest->scale.z == src->scale.z;
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case GTK_CSS_TRANSFORM_SKEW:
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dest->skew.x = _gtk_css_value_compute (src->skew.x, property_id, provider, style, parent_style);
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dest->skew.y = _gtk_css_value_compute (src->skew.y, property_id, provider, style, parent_style);
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return dest->skew.x == src->skew.x
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&& dest->skew.y == src->skew.y;
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case GTK_CSS_TRANSFORM_SKEW_X:
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dest->skew_x.skew = _gtk_css_value_compute (src->skew_x.skew, property_id, provider, style, parent_style);
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return dest->skew_x.skew == src->skew_x.skew;
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case GTK_CSS_TRANSFORM_SKEW_Y:
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dest->skew_y.skew = _gtk_css_value_compute (src->skew_y.skew, property_id, provider, style, parent_style);
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return dest->skew_y.skew == src->skew_y.skew;
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case GTK_CSS_TRANSFORM_NONE:
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default:
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g_assert_not_reached ();
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return FALSE;
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}
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}
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static GtkCssValue *
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gtk_css_value_transform_compute (GtkCssValue *value,
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guint property_id,
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GtkStyleProvider *provider,
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GtkCssStyle *style,
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GtkCssStyle *parent_style)
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{
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GtkCssValue *result;
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gboolean changes;
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guint i;
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/* Special case the 99% case of "none" */
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if (gtk_css_transform_value_is_none (value))
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return _gtk_css_value_ref (value);
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changes = FALSE;
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result = gtk_css_transform_value_alloc (value->n_transforms);
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for (i = 0; i < value->n_transforms; i++)
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{
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changes |= !gtk_css_transform_compute (&result->transforms[i],
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&value->transforms[i],
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property_id,
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provider,
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style,
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parent_style);
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}
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if (!changes)
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{
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_gtk_css_value_unref (result);
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result = _gtk_css_value_ref (value);
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}
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return result;
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}
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static gboolean
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gtk_css_transform_equal (const GtkCssTransform *transform1,
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const GtkCssTransform *transform2)
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{
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if (transform1->type != transform2->type)
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return FALSE;
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switch (transform1->type)
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{
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case GTK_CSS_TRANSFORM_MATRIX:
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{
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guint i, j;
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for (i = 0; i < 4; i++)
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for (j = 0; j < 4; j++)
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{
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if (graphene_matrix_get_value (&transform1->matrix.matrix, i, j)
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!= graphene_matrix_get_value (&transform2->matrix.matrix, i, j))
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return FALSE;
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}
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return TRUE;
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}
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case GTK_CSS_TRANSFORM_TRANSLATE:
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return _gtk_css_value_equal (transform1->translate.x, transform2->translate.x)
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&& _gtk_css_value_equal (transform1->translate.y, transform2->translate.y)
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&& _gtk_css_value_equal (transform1->translate.z, transform2->translate.z);
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case GTK_CSS_TRANSFORM_ROTATE:
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return _gtk_css_value_equal (transform1->rotate.x, transform2->rotate.x)
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&& _gtk_css_value_equal (transform1->rotate.y, transform2->rotate.y)
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&& _gtk_css_value_equal (transform1->rotate.z, transform2->rotate.z)
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&& _gtk_css_value_equal (transform1->rotate.angle, transform2->rotate.angle);
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case GTK_CSS_TRANSFORM_SCALE:
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return _gtk_css_value_equal (transform1->scale.x, transform2->scale.x)
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&& _gtk_css_value_equal (transform1->scale.y, transform2->scale.y)
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&& _gtk_css_value_equal (transform1->scale.z, transform2->scale.z);
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case GTK_CSS_TRANSFORM_SKEW:
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return _gtk_css_value_equal (transform1->skew.x, transform2->skew.x)
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&& _gtk_css_value_equal (transform1->skew.y, transform2->skew.y);
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case GTK_CSS_TRANSFORM_SKEW_X:
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return _gtk_css_value_equal (transform1->skew_x.skew, transform2->skew_x.skew);
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case GTK_CSS_TRANSFORM_SKEW_Y:
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return _gtk_css_value_equal (transform1->skew_y.skew, transform2->skew_y.skew);
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case GTK_CSS_TRANSFORM_NONE:
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default:
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g_assert_not_reached ();
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return FALSE;
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}
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}
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static gboolean
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gtk_css_value_transform_equal (const GtkCssValue *value1,
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const GtkCssValue *value2)
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{
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const GtkCssValue *larger;
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guint i, n;
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n = MIN (value1->n_transforms, value2->n_transforms);
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for (i = 0; i < n; i++)
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{
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if (!gtk_css_transform_equal (&value1->transforms[i], &value2->transforms[i]))
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return FALSE;
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}
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larger = value1->n_transforms > value2->n_transforms ? value1 : value2;
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for (; i < larger->n_transforms; i++)
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{
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GtkCssTransform transform;
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gtk_css_transform_init_identity (&transform, larger->transforms[i].type);
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if (!gtk_css_transform_equal (&larger->transforms[i], &transform))
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{
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gtk_css_transform_clear (&transform);
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return FALSE;
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}
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gtk_css_transform_clear (&transform);
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}
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return TRUE;
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}
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static void
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gtk_css_transform_transition (GtkCssTransform *result,
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const GtkCssTransform *start,
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const GtkCssTransform *end,
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guint property_id,
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double progress)
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{
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result->type = start->type;
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switch (start->type)
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{
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case GTK_CSS_TRANSFORM_MATRIX:
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graphene_matrix_interpolate (&start->matrix.matrix,
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&end->matrix.matrix,
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progress,
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&result->matrix.matrix);
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break;
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case GTK_CSS_TRANSFORM_TRANSLATE:
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result->translate.x = _gtk_css_value_transition (start->translate.x, end->translate.x, property_id, progress);
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result->translate.y = _gtk_css_value_transition (start->translate.y, end->translate.y, property_id, progress);
|
|
result->translate.z = _gtk_css_value_transition (start->translate.z, end->translate.z, property_id, progress);
|
|
break;
|
|
case GTK_CSS_TRANSFORM_ROTATE:
|
|
result->rotate.x = _gtk_css_value_transition (start->rotate.x, end->rotate.x, property_id, progress);
|
|
result->rotate.y = _gtk_css_value_transition (start->rotate.y, end->rotate.y, property_id, progress);
|
|
result->rotate.z = _gtk_css_value_transition (start->rotate.z, end->rotate.z, property_id, progress);
|
|
result->rotate.angle = _gtk_css_value_transition (start->rotate.angle, end->rotate.angle, property_id, progress);
|
|
break;
|
|
case GTK_CSS_TRANSFORM_SCALE:
|
|
result->scale.x = _gtk_css_value_transition (start->scale.x, end->scale.x, property_id, progress);
|
|
result->scale.y = _gtk_css_value_transition (start->scale.y, end->scale.y, property_id, progress);
|
|
result->scale.z = _gtk_css_value_transition (start->scale.z, end->scale.z, property_id, progress);
|
|
break;
|
|
case GTK_CSS_TRANSFORM_SKEW:
|
|
result->skew.x = _gtk_css_value_transition (start->skew.x, end->skew.x, property_id, progress);
|
|
result->skew.y = _gtk_css_value_transition (start->skew.y, end->skew.y, property_id, progress);
|
|
break;
|
|
case GTK_CSS_TRANSFORM_SKEW_X:
|
|
result->skew_x.skew = _gtk_css_value_transition (start->skew_x.skew, end->skew_x.skew, property_id, progress);
|
|
break;
|
|
case GTK_CSS_TRANSFORM_SKEW_Y:
|
|
result->skew_y.skew = _gtk_css_value_transition (start->skew_y.skew, end->skew_y.skew, property_id, progress);
|
|
break;
|
|
case GTK_CSS_TRANSFORM_NONE:
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GtkCssValue *
|
|
gtk_css_value_transform_transition (GtkCssValue *start,
|
|
GtkCssValue *end,
|
|
guint property_id,
|
|
double progress)
|
|
{
|
|
GtkCssValue *result;
|
|
guint i, n;
|
|
|
|
if (gtk_css_transform_value_is_none (start))
|
|
{
|
|
if (gtk_css_transform_value_is_none (end))
|
|
return _gtk_css_value_ref (start);
|
|
|
|
n = 0;
|
|
}
|
|
else if (gtk_css_transform_value_is_none (end))
|
|
{
|
|
n = 0;
|
|
}
|
|
else
|
|
{
|
|
n = MIN (start->n_transforms, end->n_transforms);
|
|
}
|
|
|
|
/* Check transforms are compatible. If not, transition between
|
|
* their result matrices.
|
|
*/
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
if (start->transforms[i].type != end->transforms[i].type)
|
|
{
|
|
GtkTransform *transform;
|
|
graphene_matrix_t start_matrix, end_matrix;
|
|
|
|
transform = gtk_css_transform_value_compute_transform (start);
|
|
gtk_transform_to_matrix (transform, &start_matrix);
|
|
gtk_transform_unref (transform);
|
|
|
|
transform = gtk_css_transform_value_compute_transform (end);
|
|
gtk_transform_to_matrix (transform, &end_matrix);
|
|
gtk_transform_unref (transform);
|
|
|
|
result = gtk_css_transform_value_alloc (1);
|
|
result->transforms[0].type = GTK_CSS_TRANSFORM_MATRIX;
|
|
graphene_matrix_interpolate (&start_matrix, &end_matrix, progress, &result->transforms[0].matrix.matrix);
|
|
|
|
return result;
|
|
}
|
|
}
|
|
|
|
result = gtk_css_transform_value_alloc (MAX (start->n_transforms, end->n_transforms));
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
gtk_css_transform_transition (&result->transforms[i],
|
|
&start->transforms[i],
|
|
&end->transforms[i],
|
|
property_id,
|
|
progress);
|
|
}
|
|
|
|
for (; i < start->n_transforms; i++)
|
|
{
|
|
GtkCssTransform transform;
|
|
|
|
gtk_css_transform_init_identity (&transform, start->transforms[i].type);
|
|
gtk_css_transform_transition (&result->transforms[i],
|
|
&start->transforms[i],
|
|
&transform,
|
|
property_id,
|
|
progress);
|
|
gtk_css_transform_clear (&transform);
|
|
}
|
|
for (; i < end->n_transforms; i++)
|
|
{
|
|
GtkCssTransform transform;
|
|
|
|
gtk_css_transform_init_identity (&transform, end->transforms[i].type);
|
|
gtk_css_transform_transition (&result->transforms[i],
|
|
&transform,
|
|
&end->transforms[i],
|
|
property_id,
|
|
progress);
|
|
gtk_css_transform_clear (&transform);
|
|
}
|
|
|
|
g_assert (i == MAX (start->n_transforms, end->n_transforms));
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
gtk_css_transform_print (const GtkCssTransform *transform,
|
|
GString *string)
|
|
{
|
|
char buf[G_ASCII_DTOSTR_BUF_SIZE];
|
|
|
|
switch (transform->type)
|
|
{
|
|
case GTK_CSS_TRANSFORM_MATRIX:
|
|
if (graphene_matrix_is_2d (&transform->matrix.matrix))
|
|
{
|
|
g_string_append (string, "matrix(");
|
|
g_ascii_dtostr (buf, sizeof (buf), graphene_matrix_get_value (&transform->matrix.matrix, 0, 0));
|
|
g_string_append (string, buf);
|
|
g_string_append (string, ", ");
|
|
g_ascii_dtostr (buf, sizeof (buf), graphene_matrix_get_value (&transform->matrix.matrix, 0, 1));
|
|
g_string_append (string, buf);
|
|
g_string_append (string, ", ");
|
|
g_ascii_dtostr (buf, sizeof (buf), graphene_matrix_get_value (&transform->matrix.matrix, 0, 2));
|
|
g_string_append (string, buf);
|
|
g_string_append (string, ", ");
|
|
g_ascii_dtostr (buf, sizeof (buf), graphene_matrix_get_value (&transform->matrix.matrix, 1, 0));
|
|
g_string_append (string, buf);
|
|
g_string_append (string, ", ");
|
|
g_ascii_dtostr (buf, sizeof (buf), graphene_matrix_get_value (&transform->matrix.matrix, 1, 1));
|
|
g_string_append (string, buf);
|
|
g_string_append (string, ", ");
|
|
g_ascii_dtostr (buf, sizeof (buf), graphene_matrix_get_value (&transform->matrix.matrix, 1, 2));
|
|
g_string_append (string, buf);
|
|
g_string_append (string, ")");
|
|
}
|
|
else
|
|
{
|
|
guint i;
|
|
|
|
g_string_append (string, "matrix3d(");
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
g_ascii_dtostr (buf, sizeof (buf), graphene_matrix_get_value (&transform->matrix.matrix, i / 4, i % 4));
|
|
g_string_append (string, buf);
|
|
if (i < 15)
|
|
g_string_append (string, ", ");
|
|
}
|
|
g_string_append (string, ")");
|
|
}
|
|
break;
|
|
case GTK_CSS_TRANSFORM_TRANSLATE:
|
|
g_string_append (string, "translate3d(");
|
|
_gtk_css_value_print (transform->translate.x, string);
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->translate.y, string);
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->translate.z, string);
|
|
g_string_append (string, ")");
|
|
break;
|
|
case GTK_CSS_TRANSFORM_ROTATE:
|
|
g_string_append (string, "rotate3d(");
|
|
_gtk_css_value_print (transform->rotate.x, string);
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->rotate.y, string);
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->rotate.z, string);
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->rotate.angle, string);
|
|
g_string_append (string, ")");
|
|
break;
|
|
case GTK_CSS_TRANSFORM_SCALE:
|
|
if (_gtk_css_number_value_get (transform->scale.z, 100) == 1)
|
|
{
|
|
g_string_append (string, "scale(");
|
|
_gtk_css_value_print (transform->scale.x, string);
|
|
if (!_gtk_css_value_equal (transform->scale.x, transform->scale.y))
|
|
{
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->scale.y, string);
|
|
}
|
|
g_string_append (string, ")");
|
|
}
|
|
else
|
|
{
|
|
g_string_append (string, "scale3d(");
|
|
_gtk_css_value_print (transform->scale.x, string);
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->scale.y, string);
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->scale.z, string);
|
|
g_string_append (string, ")");
|
|
}
|
|
break;
|
|
case GTK_CSS_TRANSFORM_SKEW:
|
|
g_string_append (string, "skew(");
|
|
_gtk_css_value_print (transform->skew.x, string);
|
|
g_string_append (string, ", ");
|
|
_gtk_css_value_print (transform->skew.y, string);
|
|
g_string_append (string, ")");
|
|
break;
|
|
case GTK_CSS_TRANSFORM_SKEW_X:
|
|
g_string_append (string, "skewX(");
|
|
_gtk_css_value_print (transform->skew_x.skew, string);
|
|
g_string_append (string, ")");
|
|
break;
|
|
case GTK_CSS_TRANSFORM_SKEW_Y:
|
|
g_string_append (string, "skewY(");
|
|
_gtk_css_value_print (transform->skew_y.skew, string);
|
|
g_string_append (string, ")");
|
|
break;
|
|
case GTK_CSS_TRANSFORM_NONE:
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_css_value_transform_print (const GtkCssValue *value,
|
|
GString *string)
|
|
{
|
|
guint i;
|
|
|
|
if (gtk_css_transform_value_is_none (value))
|
|
{
|
|
g_string_append (string, "none");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < value->n_transforms; i++)
|
|
{
|
|
if (i > 0)
|
|
g_string_append_c (string, ' ');
|
|
|
|
gtk_css_transform_print (&value->transforms[i], string);
|
|
}
|
|
}
|
|
|
|
static const GtkCssValueClass GTK_CSS_VALUE_TRANSFORM = {
|
|
gtk_css_value_transform_free,
|
|
gtk_css_value_transform_compute,
|
|
gtk_css_value_transform_equal,
|
|
gtk_css_value_transform_transition,
|
|
NULL,
|
|
NULL,
|
|
gtk_css_value_transform_print
|
|
};
|
|
|
|
static GtkCssValue none_singleton = { >K_CSS_VALUE_TRANSFORM, 1, 0, { { GTK_CSS_TRANSFORM_NONE } } };
|
|
|
|
static GtkCssValue *
|
|
gtk_css_transform_value_alloc (guint n_transforms)
|
|
{
|
|
GtkCssValue *result;
|
|
|
|
g_return_val_if_fail (n_transforms > 0, NULL);
|
|
|
|
result = _gtk_css_value_alloc (>K_CSS_VALUE_TRANSFORM, sizeof (GtkCssValue) + sizeof (GtkCssTransform) * (n_transforms - 1));
|
|
result->n_transforms = n_transforms;
|
|
|
|
return result;
|
|
}
|
|
|
|
GtkCssValue *
|
|
_gtk_css_transform_value_new_none (void)
|
|
{
|
|
return _gtk_css_value_ref (&none_singleton);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_css_transform_value_is_none (const GtkCssValue *value)
|
|
{
|
|
return value->n_transforms == 0;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_css_transform_parse (GtkCssTransform *transform,
|
|
GtkCssParser *parser)
|
|
{
|
|
if (_gtk_css_parser_try (parser, "matrix(", TRUE))
|
|
{
|
|
double xx, xy, x0, yx, yy, y0;
|
|
transform->type = GTK_CSS_TRANSFORM_MATRIX;
|
|
|
|
/* FIXME: Improve error handling here */
|
|
if (!_gtk_css_parser_try_double (parser, &xx)
|
|
|| !_gtk_css_parser_try (parser, ",", TRUE)
|
|
|| !_gtk_css_parser_try_double (parser, &xy)
|
|
|| !_gtk_css_parser_try (parser, ",", TRUE)
|
|
|| !_gtk_css_parser_try_double (parser, &x0)
|
|
|| !_gtk_css_parser_try (parser, ",", TRUE)
|
|
|| !_gtk_css_parser_try_double (parser, &yx)
|
|
|| !_gtk_css_parser_try (parser, ",", TRUE)
|
|
|| !_gtk_css_parser_try_double (parser, &yy)
|
|
|| !_gtk_css_parser_try (parser, ",", TRUE)
|
|
|| !_gtk_css_parser_try_double (parser, &y0))
|
|
{
|
|
_gtk_css_parser_error (parser, "invalid syntax for matrix()");
|
|
return FALSE;
|
|
}
|
|
graphene_matrix_init_from_2d (&transform->matrix.matrix,
|
|
xx, yx, xy, yy, x0, y0);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "matrix3d(", TRUE))
|
|
{
|
|
float f[16];
|
|
double d;
|
|
guint i;
|
|
|
|
transform->type = GTK_CSS_TRANSFORM_MATRIX;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
if (!_gtk_css_parser_try_double (parser, &d))
|
|
break;
|
|
f[i] = d;
|
|
|
|
if (i < 15 && !_gtk_css_parser_try (parser, ",", TRUE))
|
|
break;
|
|
}
|
|
|
|
if (i < 16)
|
|
{
|
|
/* FIXME: Improve error handling here */
|
|
_gtk_css_parser_error (parser, "invalid syntax for matrix3d()");
|
|
return FALSE;
|
|
}
|
|
graphene_matrix_init_from_float (&transform->matrix.matrix, f);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "translate(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_TRANSLATE;
|
|
|
|
transform->translate.x = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH);
|
|
if (transform->translate.x == NULL)
|
|
return FALSE;
|
|
|
|
if (_gtk_css_parser_try (parser, ",", TRUE))
|
|
{
|
|
transform->translate.y = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH);
|
|
if (transform->translate.y == NULL)
|
|
{
|
|
_gtk_css_value_unref (transform->translate.x);
|
|
return FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
transform->translate.y = _gtk_css_number_value_new (0, GTK_CSS_PX);
|
|
}
|
|
transform->translate.z = _gtk_css_number_value_new (0, GTK_CSS_PX);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "translateX(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_TRANSLATE;
|
|
|
|
transform->translate.x = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH);
|
|
if (transform->translate.x == NULL)
|
|
return FALSE;
|
|
|
|
transform->translate.y = _gtk_css_number_value_new (0, GTK_CSS_PX);
|
|
transform->translate.z = _gtk_css_number_value_new (0, GTK_CSS_PX);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "translateY(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_TRANSLATE;
|
|
|
|
transform->translate.y = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH);
|
|
if (transform->translate.y == NULL)
|
|
return FALSE;
|
|
|
|
transform->translate.x = _gtk_css_number_value_new (0, GTK_CSS_PX);
|
|
transform->translate.z = _gtk_css_number_value_new (0, GTK_CSS_PX);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "translateZ(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_TRANSLATE;
|
|
|
|
transform->translate.z = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH);
|
|
if (transform->translate.z == NULL)
|
|
return FALSE;
|
|
|
|
transform->translate.x = _gtk_css_number_value_new (0, GTK_CSS_PX);
|
|
transform->translate.y = _gtk_css_number_value_new (0, GTK_CSS_PX);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "translate3d(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_TRANSLATE;
|
|
|
|
transform->translate.x = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH);
|
|
if (transform->translate.x != NULL)
|
|
{
|
|
transform->translate.y = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH);
|
|
if (transform->translate.y != NULL)
|
|
{
|
|
transform->translate.z = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_LENGTH);
|
|
if (transform->translate.z != NULL)
|
|
goto out;
|
|
}
|
|
_gtk_css_value_unref (transform->translate.y);
|
|
}
|
|
|
|
_gtk_css_value_unref (transform->translate.x);
|
|
return FALSE;
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "scale(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_SCALE;
|
|
|
|
transform->scale.x = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->scale.x == NULL)
|
|
return FALSE;
|
|
|
|
if (_gtk_css_parser_try (parser, ",", TRUE))
|
|
{
|
|
transform->scale.y = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->scale.y == NULL)
|
|
{
|
|
_gtk_css_value_unref (transform->scale.x);
|
|
return FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
transform->scale.y = _gtk_css_value_ref (transform->scale.x);
|
|
}
|
|
transform->scale.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "scaleX(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_SCALE;
|
|
|
|
transform->scale.x = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->scale.x == NULL)
|
|
return FALSE;
|
|
|
|
transform->scale.y = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
transform->scale.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "scaleY(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_SCALE;
|
|
|
|
transform->scale.y = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->scale.y == NULL)
|
|
return FALSE;
|
|
|
|
transform->scale.x = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
transform->scale.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "scaleZ(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_SCALE;
|
|
|
|
transform->scale.z = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->scale.z == NULL)
|
|
return FALSE;
|
|
|
|
transform->scale.x = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
transform->scale.y = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "scale3d(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_SCALE;
|
|
|
|
transform->scale.x = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->scale.x != NULL)
|
|
{
|
|
transform->scale.y = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->scale.y != NULL)
|
|
{
|
|
transform->scale.z = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->scale.z != NULL)
|
|
goto out;
|
|
}
|
|
_gtk_css_value_unref (transform->scale.y);
|
|
}
|
|
|
|
_gtk_css_value_unref (transform->scale.x);
|
|
return FALSE;
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "rotate(", TRUE) ||
|
|
_gtk_css_parser_try (parser, "rotateZ(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_ROTATE;
|
|
|
|
transform->rotate.angle = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
|
|
if (transform->rotate.angle == NULL)
|
|
return FALSE;
|
|
transform->rotate.x = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
|
|
transform->rotate.y = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
|
|
transform->rotate.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "rotateX(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_ROTATE;
|
|
|
|
transform->rotate.angle = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
|
|
if (transform->rotate.angle == NULL)
|
|
return FALSE;
|
|
transform->rotate.x = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
transform->rotate.y = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
|
|
transform->rotate.z = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "rotateY(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_ROTATE;
|
|
|
|
transform->rotate.angle = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
|
|
if (transform->rotate.angle == NULL)
|
|
return FALSE;
|
|
transform->rotate.x = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
|
|
transform->rotate.y = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
|
|
transform->rotate.z = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "rotate3d(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_ROTATE;
|
|
|
|
transform->rotate.x = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->rotate.x != NULL)
|
|
{
|
|
transform->rotate.y = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->rotate.y != NULL)
|
|
{
|
|
transform->rotate.z = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER);
|
|
if (transform->rotate.z != NULL)
|
|
{
|
|
transform->rotate.angle = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
|
|
if (transform->rotate.angle != NULL)
|
|
goto out;
|
|
}
|
|
_gtk_css_value_unref (transform->rotate.z);
|
|
}
|
|
_gtk_css_value_unref (transform->rotate.y);
|
|
}
|
|
_gtk_css_value_unref (transform->rotate.x);
|
|
|
|
return FALSE;
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "skew(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_SKEW;
|
|
|
|
transform->skew.x = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
|
|
if (transform->skew.x == NULL)
|
|
return FALSE;
|
|
|
|
if (_gtk_css_parser_try (parser, ",", TRUE))
|
|
{
|
|
transform->skew.y = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
|
|
if (transform->skew.y == NULL)
|
|
{
|
|
_gtk_css_value_unref (transform->skew.x);
|
|
return FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
transform->skew.y = _gtk_css_number_value_new (0, GTK_CSS_DEG);
|
|
}
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "skewX(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_SKEW_X;
|
|
|
|
transform->skew_x.skew = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
|
|
if (transform->skew_x.skew == NULL)
|
|
return FALSE;
|
|
}
|
|
else if (_gtk_css_parser_try (parser, "skewY(", TRUE))
|
|
{
|
|
transform->type = GTK_CSS_TRANSFORM_SKEW_Y;
|
|
|
|
transform->skew_y.skew = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
|
|
if (transform->skew_y.skew == NULL)
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
_gtk_css_parser_error (parser, "unknown syntax for transform");
|
|
return FALSE;
|
|
}
|
|
|
|
out:
|
|
if (!_gtk_css_parser_try (parser, ")", TRUE))
|
|
{
|
|
gtk_css_transform_clear (transform);
|
|
_gtk_css_parser_error (parser, "Expected closing ')'");
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GtkCssValue *
|
|
_gtk_css_transform_value_parse (GtkCssParser *parser)
|
|
{
|
|
GtkCssValue *value;
|
|
GArray *array;
|
|
guint i;
|
|
|
|
if (_gtk_css_parser_try (parser, "none", TRUE))
|
|
return _gtk_css_transform_value_new_none ();
|
|
|
|
array = g_array_new (FALSE, FALSE, sizeof (GtkCssTransform));
|
|
|
|
do {
|
|
GtkCssTransform transform;
|
|
|
|
if (!gtk_css_transform_parse (&transform, parser))
|
|
{
|
|
for (i = 0; i < array->len; i++)
|
|
{
|
|
gtk_css_transform_clear (&g_array_index (array, GtkCssTransform, i));
|
|
}
|
|
g_array_free (array, TRUE);
|
|
return NULL;
|
|
}
|
|
g_array_append_val (array, transform);
|
|
} while (!_gtk_css_parser_begins_with (parser, ';'));
|
|
|
|
value = gtk_css_transform_value_alloc (array->len);
|
|
memcpy (value->transforms, array->data, sizeof (GtkCssTransform) * array->len);
|
|
|
|
g_array_free (array, TRUE);
|
|
|
|
return value;
|
|
}
|
|
|
|
GtkTransform *
|
|
gtk_css_transform_value_get_transform (const GtkCssValue *transform)
|
|
{
|
|
g_return_val_if_fail (transform->class == >K_CSS_VALUE_TRANSFORM, FALSE);
|
|
|
|
return gtk_css_transform_value_compute_transform (transform);
|
|
}
|
|
|