[gtk/constraint-guide-3: 4/7] Flesh out GtkConstraintGuide
- From: Matthias Clasen <matthiasc src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk/constraint-guide-3: 4/7] Flesh out GtkConstraintGuide
- Date: Fri, 28 Jun 2019 13:01:16 +0000 (UTC)
commit 469da877d7832ef7796d412ca39a5abd32db9505
Author: Matthias Clasen <mclasen redhat com>
Date: Thu Jun 27 19:25:04 2019 +0000
Flesh out GtkConstraintGuide
This commit moves GtkConstraintGuide into its own
source files to avoid gtkconstraintlayout.c turning
too messy, adds max size properties and implements
getters and setters.
gtk/gtkconstraintguide.c | 498 +++++++++++++++++++++++++++++++++++++++
gtk/gtkconstraintguide.h | 71 ++++++
gtk/gtkconstraintguideprivate.h | 38 +++
gtk/gtkconstraintlayout.c | 424 ++++++---------------------------
gtk/gtkconstraintlayout.h | 17 +-
gtk/gtkconstraintlayoutprivate.h | 37 +++
gtk/meson.build | 1 +
7 files changed, 722 insertions(+), 364 deletions(-)
---
diff --git a/gtk/gtkconstraintguide.c b/gtk/gtkconstraintguide.c
new file mode 100644
index 0000000000..7856e20b96
--- /dev/null
+++ b/gtk/gtkconstraintguide.c
@@ -0,0 +1,498 @@
+/* gtkconstraintguide.c: Flexible space for constraints
+ * Copyright 2019 Red Hat, Inc.
+ *
+ * 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 2.1 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/>.
+ *
+ * Author: Matthias Clasen
+ */
+
+#include "config.h"
+
+#include "gtkconstraintguide.h"
+
+#include "gtkconstraintguideprivate.h"
+#include "gtkconstraintlayoutprivate.h"
+#include "gtkconstraintexpressionprivate.h"
+#include "gtkconstraintsolverprivate.h"
+
+#include "gtkdebug.h"
+#include "gtkintl.h"
+#include "gtkprivate.h"
+
+
+typedef enum {
+ GUIDE_MIN_WIDTH,
+ GUIDE_MIN_HEIGHT,
+ GUIDE_NAT_WIDTH,
+ GUIDE_NAT_HEIGHT,
+ GUIDE_MAX_WIDTH,
+ GUIDE_MAX_HEIGHT,
+ LAST_GUIDE_VALUE
+} GuideValue;
+
+struct _GtkConstraintGuide
+{
+ GObject parent_instance;
+
+ int values[LAST_GUIDE_VALUE];
+
+ GtkConstraintLayout *layout;
+
+ /* HashTable<static string, Variable>; a hash table of variables,
+ * one for each attribute; we use these to query and suggest the
+ * values for the solver. The string is static and does not need
+ * to be freed.
+ */
+ GHashTable *bound_attributes;
+
+ GtkConstraintRef *constraints[LAST_GUIDE_VALUE];
+};
+
+
+struct _GtkConstraintGuideClass {
+ GObjectClass parent_class;
+};
+
+enum {
+ GUIDE_PROP_MIN_WIDTH = 1,
+ GUIDE_PROP_MIN_HEIGHT,
+ GUIDE_PROP_NAT_WIDTH,
+ GUIDE_PROP_NAT_HEIGHT,
+ GUIDE_PROP_MAX_WIDTH,
+ GUIDE_PROP_MAX_HEIGHT,
+ LAST_GUIDE_PROP
+};
+
+static GParamSpec *guide_props[LAST_GUIDE_PROP];
+
+static void
+gtk_constraint_guide_constraint_target_iface_init (GtkConstraintTargetInterface *iface)
+{
+}
+
+G_DEFINE_TYPE_WITH_CODE (GtkConstraintGuide, gtk_constraint_guide, G_TYPE_OBJECT,
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_CONSTRAINT_TARGET,
+ gtk_constraint_guide_constraint_target_iface_init))
+
+static void
+gtk_constraint_guide_init (GtkConstraintGuide *guide)
+{
+ guide->bound_attributes =
+ g_hash_table_new_full (g_str_hash, g_str_equal,
+ NULL,
+ (GDestroyNotify) gtk_constraint_variable_unref);
+}
+
+static void
+gtk_constraint_guide_update_constraint (GtkConstraintGuide *guide,
+ GuideValue index)
+{
+ GtkConstraintSolver *solver;
+ GtkConstraintVariable *var;
+ int attr[LAST_GUIDE_VALUE] = {
+ GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
+ GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
+ GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
+ GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
+ GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
+ GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
+ };
+ int relation[LAST_GUIDE_VALUE] = {
+ GTK_CONSTRAINT_RELATION_GE,
+ GTK_CONSTRAINT_RELATION_GE,
+ GTK_CONSTRAINT_RELATION_EQ,
+ GTK_CONSTRAINT_RELATION_EQ,
+ GTK_CONSTRAINT_RELATION_LE,
+ GTK_CONSTRAINT_RELATION_LE,
+ };
+ double weight[LAST_GUIDE_VALUE] = {
+ GTK_CONSTRAINT_WEIGHT_REQUIRED,
+ GTK_CONSTRAINT_WEIGHT_REQUIRED,
+ GTK_CONSTRAINT_WEIGHT_MEDIUM,
+ GTK_CONSTRAINT_WEIGHT_MEDIUM,
+ GTK_CONSTRAINT_WEIGHT_REQUIRED,
+ GTK_CONSTRAINT_WEIGHT_REQUIRED,
+ };
+
+ if (!guide->layout)
+ return;
+
+ solver = gtk_constraint_layout_get_solver (guide->layout);
+ if (!solver)
+ return;
+
+ if (guide->constraints[index] != NULL)
+ gtk_constraint_solver_remove_constraint (solver, guide->constraints[index]);
+
+ var = gtk_constraint_layout_get_attribute (guide->layout, attr[index], "guide", NULL,
guide->bound_attributes);
+ guide->constraints[index] =
+ gtk_constraint_solver_add_constraint (solver,
+ var,
+ relation[index],
+ gtk_constraint_expression_new (guide->values[index]),
+ weight[index]);
+}
+
+void
+gtk_constraint_guide_update (GtkConstraintGuide *guide)
+{
+ int i;
+
+ for (i = 0; i < LAST_GUIDE_VALUE; i++)
+ gtk_constraint_guide_update_constraint (guide, i);
+}
+
+void
+gtk_constraint_guide_detach (GtkConstraintGuide *guide)
+{
+ GtkConstraintSolver *solver;
+ int i;
+
+ if (!guide->layout)
+ return;
+
+ solver = gtk_constraint_layout_get_solver (guide->layout);
+ if (!solver)
+ return;
+
+ for (i = 0; i < LAST_GUIDE_VALUE; i++)
+ {
+ gtk_constraint_solver_remove_constraint (solver, guide->constraints[i]);
+ guide->constraints[i] = NULL;
+ }
+
+ g_hash_table_remove_all (guide->bound_attributes);
+}
+
+GtkConstraintVariable *
+gtk_constraint_guide_get_attribute (GtkConstraintGuide *guide,
+ GtkConstraintAttribute attr)
+{
+ GtkLayoutManager *manager = GTK_LAYOUT_MANAGER (guide->layout);
+ GtkWidget *widget = gtk_layout_manager_get_widget (manager);
+
+ return gtk_constraint_layout_get_attribute (guide->layout, attr, "guide", widget, guide->bound_attributes);
+}
+
+GtkConstraintLayout *
+gtk_constraint_guide_get_layout (GtkConstraintGuide *guide)
+{
+ return guide->layout;
+}
+
+void
+gtk_constraint_guide_set_layout (GtkConstraintGuide *guide,
+ GtkConstraintLayout *layout)
+{
+ guide->layout = layout;
+}
+
+static void
+gtk_constraint_guide_set_property (GObject *gobject,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkConstraintGuide *self = GTK_CONSTRAINT_GUIDE (gobject);
+ int val;
+ GuideValue index;
+
+ switch (prop_id)
+ {
+ case GUIDE_PROP_MIN_WIDTH:
+ case GUIDE_PROP_MIN_HEIGHT:
+ case GUIDE_PROP_NAT_WIDTH:
+ case GUIDE_PROP_NAT_HEIGHT:
+ case GUIDE_PROP_MAX_WIDTH:
+ case GUIDE_PROP_MAX_HEIGHT:
+ val = g_value_get_int (value);
+ index = prop_id - 1;
+ if (self->values[index] != val)
+ {
+ self->values[index] = val;
+ g_object_notify_by_pspec (gobject, pspec);
+ gtk_constraint_guide_update_constraint (self, index);
+ }
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_constraint_guide_get_property (GObject *gobject,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkConstraintGuide *self = GTK_CONSTRAINT_GUIDE (gobject);
+
+ switch (prop_id)
+ {
+ case GUIDE_PROP_MIN_WIDTH:
+ case GUIDE_PROP_MIN_HEIGHT:
+ case GUIDE_PROP_NAT_WIDTH:
+ case GUIDE_PROP_NAT_HEIGHT:
+ case GUIDE_PROP_MAX_WIDTH:
+ case GUIDE_PROP_MAX_HEIGHT:
+ g_value_set_int (value, self->values[prop_id - 1]);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_constraint_guide_finalize (GObject *object)
+{
+ GtkConstraintGuide *self = GTK_CONSTRAINT_GUIDE (object);
+
+ g_clear_pointer (&self->bound_attributes, g_hash_table_unref);
+
+ G_OBJECT_CLASS (gtk_constraint_guide_parent_class)->finalize (object);
+}
+
+static void
+gtk_constraint_guide_class_init (GtkConstraintGuideClass *class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+ object_class->finalize = gtk_constraint_guide_finalize;
+ object_class->set_property = gtk_constraint_guide_set_property;
+ object_class->get_property = gtk_constraint_guide_get_property;
+
+ guide_props[GUIDE_PROP_MIN_WIDTH] =
+ g_param_spec_int ("min-width",
+ "Minimum width",
+ "Minimum width",
+ 0, G_MAXINT, 0,
+ G_PARAM_READWRITE|
+ G_PARAM_EXPLICIT_NOTIFY);
+ guide_props[GUIDE_PROP_MIN_HEIGHT] =
+ g_param_spec_int ("min-height",
+ "Minimum height",
+ "Minimum height",
+ 0, G_MAXINT, 0,
+ G_PARAM_READWRITE|
+ G_PARAM_EXPLICIT_NOTIFY);
+ guide_props[GUIDE_PROP_NAT_WIDTH] =
+ g_param_spec_int ("nat-width",
+ "Natural width",
+ "Natural width",
+ 0, G_MAXINT, 0,
+ G_PARAM_READWRITE|
+ G_PARAM_EXPLICIT_NOTIFY);
+ guide_props[GUIDE_PROP_NAT_HEIGHT] =
+ g_param_spec_int ("nat-height",
+ "Natural height",
+ "Natural height",
+ 0, G_MAXINT, 0,
+ G_PARAM_READWRITE|
+ G_PARAM_EXPLICIT_NOTIFY);
+ guide_props[GUIDE_PROP_MAX_WIDTH] =
+ g_param_spec_int ("max-width",
+ "Maximum width",
+ "Maximum width",
+ 0, G_MAXINT, G_MAXINT,
+ G_PARAM_READWRITE|
+ G_PARAM_EXPLICIT_NOTIFY);
+ guide_props[GUIDE_PROP_MAX_HEIGHT] =
+ g_param_spec_int ("max-height",
+ "Maximum height",
+ "Maximum height",
+ 0, G_MAXINT, G_MAXINT,
+ G_PARAM_READWRITE|
+ G_PARAM_EXPLICIT_NOTIFY);
+
+ g_object_class_install_properties (object_class, LAST_GUIDE_PROP, guide_props);
+}
+
+/**
+ * gtk_constraint_guide_new:
+ *
+ * Creates a new #GtkConstraintGuide object.
+ *
+ * Return: a new #GtkConstraintGuide object.
+ */
+GtkConstraintGuide *
+gtk_constraint_guide_new (void)
+{
+ return g_object_new (GTK_TYPE_CONSTRAINT_GUIDE, NULL);
+}
+
+/**
+ * gtk_constraint_guide_set_min_size:
+ * @guide: a #GtkConstraintGuide object
+ * @width: the new minimum width, or -1 to not change it
+ * @height: the new minimum height, or -1 to not change it
+ *
+ * Sets the minimum size of @guide.
+ *
+ * If @guide is attached to a #GtkConstraintLayout,
+ * the constraints will be updated to reflect the new size.
+ */
+void
+gtk_constraint_guide_set_min_size (GtkConstraintGuide *guide,
+ int width,
+ int height)
+{
+ g_return_if_fail (GTK_IS_CONSTRAINT_GUIDE (guide));
+ g_return_if_fail (width >= -1);
+ g_return_if_fail (height >= -1);
+
+ g_object_freeze_notify (G_OBJECT (guide));
+
+ if (width != -1)
+ g_object_set (guide, "min-width", width, NULL);
+
+ if (height != -1)
+ g_object_set (guide, "min-height", height, NULL);
+
+ g_object_thaw_notify (G_OBJECT (guide));
+}
+
+/**
+ * gtk_constraint_guide_get_min_size:
+ * @guide: a #GtkContraintGuide object
+ * @width: (allow-none): return location for the minimum width,
+ * or %NULL
+ * @height: (allow-none): return location for the minimum height,
+ * or %NULL
+ *
+ * Gets the minimum size of @guide.
+ */
+void
+gtk_constraint_guide_get_min_size (GtkConstraintGuide *guide,
+ int *width,
+ int *height)
+{
+ g_return_if_fail (GTK_IS_CONSTRAINT_GUIDE (guide));
+
+ if (width)
+ *width = guide->values[GUIDE_MIN_WIDTH];
+ if (height)
+ *height = guide->values[GUIDE_MIN_HEIGHT];
+}
+
+/**
+ * gtk_constraint_guide_set_nat_size:
+ * @guide: a #GtkConstraintGuide object
+ * @width: the new natural width, or -1 to not change it
+ * @height: the new natural height, or -1 to not change it
+ *
+ * Sets the natural size of @guide.
+ *
+ * If @guide is attached to a #GtkConstraintLayout,
+ * the constraints will be updated to reflect the new size.
+ */
+void
+gtk_constraint_guide_set_nat_size (GtkConstraintGuide *guide,
+ int width,
+ int height)
+{
+ g_return_if_fail (GTK_IS_CONSTRAINT_GUIDE (guide));
+ g_return_if_fail (width >= -1);
+ g_return_if_fail (height >= -1);
+
+ g_object_freeze_notify (G_OBJECT (guide));
+
+ if (width != -1)
+ g_object_set (guide, "nat-width", width, NULL);
+
+ if (height != -1)
+ g_object_set (guide, "nat-height", height, NULL);
+
+ g_object_thaw_notify (G_OBJECT (guide));
+}
+
+/**
+ * gtk_constraint_guide_get_nat_size:
+ * @guide: a #GtkContraintGuide object
+ * @width: (allow-none): return location for the natural width,
+ * or %NULL
+ * @height: (allow-none): return location for the natural height,
+ * or %NULL
+ *
+ * Gets the natural size of @guide.
+ */
+void
+gtk_constraint_guide_get_nat_size (GtkConstraintGuide *guide,
+ int *width,
+ int *height)
+{
+ g_return_if_fail (GTK_IS_CONSTRAINT_GUIDE (guide));
+
+ if (width)
+ *width = guide->values[GUIDE_NAT_WIDTH];
+ if (height)
+ *height = guide->values[GUIDE_NAT_HEIGHT];
+}
+
+/**
+ * gtk_constraint_guide_set_max_size:
+ * @guide: a #GtkConstraintGuide object
+ * @width: the new maximum width, or -1 to not change it
+ * @height: the new maximum height, or -1 to not change it
+ *
+ * Sets the maximum size of @guide.
+ *
+ * If @guide is attached to a #GtkConstraintLayout,
+ * the constraints will be updated to reflect the new size.
+ */
+void
+gtk_constraint_guide_set_max_size (GtkConstraintGuide *guide,
+ int width,
+ int height)
+{
+ g_return_if_fail (GTK_IS_CONSTRAINT_GUIDE (guide));
+ g_return_if_fail (width >= -1);
+ g_return_if_fail (height >= -1);
+
+ g_object_freeze_notify (G_OBJECT (guide));
+
+ if (width != -1)
+ g_object_set (guide, "max-width", width, NULL);
+
+ if (height != -1)
+ g_object_set (guide, "max-height", height, NULL);
+
+ g_object_thaw_notify (G_OBJECT (guide));
+}
+
+/**
+ * gtk_constraint_guide_get_max_size:
+ * @guide: a #GtkContraintGuide object
+ * @width: (allow-none): return location for the maximum width,
+ * or %NULL
+ * @height: (allow-none): return location for the maximum height,
+ * or %NULL
+ *
+ * Gets the maximum size of @guide.
+ */
+void
+gtk_constraint_guide_get_max_size (GtkConstraintGuide *guide,
+ int *width,
+ int *height)
+{
+ g_return_if_fail (GTK_IS_CONSTRAINT_GUIDE (guide));
+
+ if (width)
+ *width = guide->values[GUIDE_MAX_WIDTH];
+ if (height)
+ *height = guide->values[GUIDE_MAX_HEIGHT];
+}
diff --git a/gtk/gtkconstraintguide.h b/gtk/gtkconstraintguide.h
new file mode 100644
index 0000000000..415978f9ef
--- /dev/null
+++ b/gtk/gtkconstraintguide.h
@@ -0,0 +1,71 @@
+/* gtkconstraintguide.h: Flexible space for constraints
+ * Copyright 2019 Red Hat, Inc.
+ *
+ * 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 2.1 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/>.
+ *
+ * Author: Matthias Clasen
+ */
+
+#pragma once
+
+#include <gtk/gtktypes.h>
+#include <gtk/gtkenums.h>
+
+G_BEGIN_DECLS
+
+
+#define GTK_TYPE_CONSTRAINT_GUIDE (gtk_constraint_guide_get_type ())
+
+/**
+ * GtkConstraintGuide:
+ *
+ * An object that can be added to a #GtkConstraintLayout and be
+ * used in constraints like a widget, without being drawn.
+ *
+ * Guides have a minimum, maximum and natural size. Depending
+ * on the constraints that are applied, they can act like a
+ * guideline that widgets can be aligned to, or like 'flexible space'.
+ */
+GDK_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (GtkConstraintGuide, gtk_constraint_guide, GTK, CONSTRAINT_GUIDE, GObject)
+
+GDK_AVAILABLE_IN_ALL
+GtkConstraintGuide * gtk_constraint_guide_new (void);
+
+GDK_AVAILABLE_IN_ALL
+void gtk_constraint_guide_set_min_size (GtkConstraintGuide *guide,
+ int width,
+ int height);
+GDK_AVAILABLE_IN_ALL
+void gtk_constraint_guide_get_min_size (GtkConstraintGuide *guide,
+ int *width,
+ int *height);
+GDK_AVAILABLE_IN_ALL
+void gtk_constraint_guide_set_nat_size (GtkConstraintGuide *guide,
+ int width,
+ int height);
+GDK_AVAILABLE_IN_ALL
+void gtk_constraint_guide_get_nat_size (GtkConstraintGuide *guide,
+ int *width,
+ int *height);
+GDK_AVAILABLE_IN_ALL
+void gtk_constraint_guide_set_max_size (GtkConstraintGuide *guide,
+ int width,
+ int height);
+GDK_AVAILABLE_IN_ALL
+void gtk_constraint_guide_get_max_size (GtkConstraintGuide *guide,
+ int *width,
+ int *height);
+
+G_END_DECLS
diff --git a/gtk/gtkconstraintguideprivate.h b/gtk/gtkconstraintguideprivate.h
new file mode 100644
index 0000000000..69c7e5f2c4
--- /dev/null
+++ b/gtk/gtkconstraintguideprivate.h
@@ -0,0 +1,38 @@
+/* gtkconstraintguideprivate.h: Constraint between two widgets
+ * Copyright 2019 Red Hat, Inc.
+ *
+ * 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 2.1 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/>.
+ *
+ * Author: Matthias Clasen
+ */
+
+#pragma once
+
+#include "gtkconstraintguide.h"
+#include "gtkconstraintlayout.h"
+#include "gtkconstrainttypesprivate.h"
+
+G_BEGIN_DECLS
+
+void gtk_constraint_guide_update (GtkConstraintGuide *guide);
+void gtk_constraint_guide_detach (GtkConstraintGuide *guide);
+
+GtkConstraintVariable *gtk_constraint_guide_get_attribute (GtkConstraintGuide *guide,
+ GtkConstraintAttribute attr);
+
+GtkConstraintLayout *gtk_constraint_guide_get_layout (GtkConstraintGuide *guide);
+void gtk_constraint_guide_set_layout (GtkConstraintGuide *guide,
+ GtkConstraintLayout *layout);
+
+G_END_DECLS
diff --git a/gtk/gtkconstraintlayout.c b/gtk/gtkconstraintlayout.c
index f3a921f1e7..0eedf7fb35 100644
--- a/gtk/gtkconstraintlayout.c
+++ b/gtk/gtkconstraintlayout.c
@@ -60,11 +60,13 @@
#include "config.h"
#include "gtkconstraintlayout.h"
+#include "gtkconstraintlayoutprivate.h"
#include "gtkconstraintprivate.h"
#include "gtkconstraintexpressionprivate.h"
#include "gtkconstraintsolverprivate.h"
#include "gtklayoutchild.h"
+#include "gtkconstraintguideprivate.h"
#include "gtkdebug.h"
#include "gtkintl.h"
@@ -84,32 +86,6 @@ struct _GtkConstraintLayoutChild
GHashTable *bound_attributes;
};
-typedef enum {
- GUIDE_MIN_WIDTH,
- GUIDE_MIN_HEIGHT,
- GUIDE_NAT_WIDTH,
- GUIDE_NAT_HEIGHT,
- LAST_GUIDE_VALUE
-} GuideValue;
-
-struct _GtkConstraintGuide
-{
- GObject parent_instance;
-
- int values[LAST_GUIDE_VALUE];
-
- GtkConstraintLayout *layout;
-
- /* HashTable<static string, Variable>; a hash table of variables,
- * one for each attribute; we use these to query and suggest the
- * values for the solver. The string is static and does not need
- * to be freed.
- */
- GHashTable *bound_attributes;
-
- GtkConstraintRef *constraints[LAST_GUIDE_VALUE];
-};
-
struct _GtkConstraintLayout
{
GtkLayoutManager parent_instance;
@@ -138,7 +114,7 @@ struct _GtkConstraintLayout
G_DEFINE_TYPE (GtkConstraintLayoutChild, gtk_constraint_layout_child, GTK_TYPE_LAYOUT_CHILD)
-static inline GtkConstraintSolver *
+GtkConstraintSolver *
gtk_constraint_layout_get_solver (GtkConstraintLayout *self)
{
GtkWidget *widget;
@@ -182,14 +158,49 @@ get_attribute_name (GtkConstraintAttribute attr)
return attribute_names[attr];
}
-static GtkConstraintVariable *
-get_attribute (GHashTable *bound_attributes,
- GtkConstraintSolver *solver,
- const char *prefix,
- GtkConstraintAttribute attr)
+static GtkConstraintAttribute
+resolve_direction (GtkConstraintAttribute attr,
+ GtkWidget *widget)
+{
+ GtkTextDirection text_dir;
+
+ /* Resolve the start/end attributes depending on the layout's text direction */
+
+ if (widget)
+ text_dir = gtk_widget_get_direction (widget);
+ else
+ text_dir = GTK_TEXT_DIR_LTR;
+
+ if (attr == GTK_CONSTRAINT_ATTRIBUTE_START)
+ {
+ if (text_dir == GTK_TEXT_DIR_RTL)
+ attr = GTK_CONSTRAINT_ATTRIBUTE_RIGHT;
+ else
+ attr = GTK_CONSTRAINT_ATTRIBUTE_LEFT;
+ }
+ else if (attr == GTK_CONSTRAINT_ATTRIBUTE_END)
+ {
+ if (text_dir == GTK_TEXT_DIR_RTL)
+ attr = GTK_CONSTRAINT_ATTRIBUTE_LEFT;
+ else
+ attr = GTK_CONSTRAINT_ATTRIBUTE_RIGHT;
+ }
+
+ return attr;
+}
+
+GtkConstraintVariable *
+gtk_constraint_layout_get_attribute (GtkConstraintLayout *layout,
+ GtkConstraintAttribute attr,
+ const char *prefix,
+ GtkWidget *widget,
+ GHashTable *bound_attributes)
{
const char *attr_name;
GtkConstraintVariable *res;
+ GtkConstraintSolver *solver = layout->solver;
+
+ attr = resolve_direction (attr, widget);
attr_name = get_attribute_name (attr);
res = g_hash_table_lookup (bound_attributes, attr_name);
@@ -212,8 +223,8 @@ get_attribute (GHashTable *bound_attributes,
GtkConstraintVariable *left, *width;
GtkConstraintExpression *expr;
- left = get_attribute (bound_attributes, solver, prefix, GTK_CONSTRAINT_ATTRIBUTE_LEFT);
- width = get_attribute (bound_attributes, solver, prefix, GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
+ left = gtk_constraint_layout_get_attribute (layout, GTK_CONSTRAINT_ATTRIBUTE_LEFT, prefix, widget,
bound_attributes);
+ width = gtk_constraint_layout_get_attribute (layout, GTK_CONSTRAINT_ATTRIBUTE_WIDTH, prefix, widget,
bound_attributes);
gtk_constraint_expression_builder_init (&builder, solver);
gtk_constraint_expression_builder_term (&builder, left);
@@ -234,8 +245,8 @@ get_attribute (GHashTable *bound_attributes,
GtkConstraintVariable *top, *height;
GtkConstraintExpression *expr;
- top = get_attribute (bound_attributes, solver, prefix, GTK_CONSTRAINT_ATTRIBUTE_TOP);
- height = get_attribute (bound_attributes, solver, prefix, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
+ top = gtk_constraint_layout_get_attribute (layout, GTK_CONSTRAINT_ATTRIBUTE_TOP, prefix, widget,
bound_attributes);
+ height = gtk_constraint_layout_get_attribute (layout, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT, prefix,
widget, bound_attributes);
gtk_constraint_expression_builder_init (&builder, solver);
gtk_constraint_expression_builder_term (&builder, top);
@@ -256,8 +267,8 @@ get_attribute (GHashTable *bound_attributes,
GtkConstraintVariable *left, *width;
GtkConstraintExpression *expr;
- left = get_attribute (bound_attributes, solver, prefix, GTK_CONSTRAINT_ATTRIBUTE_LEFT);
- width = get_attribute (bound_attributes, solver, prefix, GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
+ left = gtk_constraint_layout_get_attribute (layout, GTK_CONSTRAINT_ATTRIBUTE_LEFT, prefix, widget,
bound_attributes);
+ width = gtk_constraint_layout_get_attribute (layout, GTK_CONSTRAINT_ATTRIBUTE_WIDTH, prefix, widget,
bound_attributes);
gtk_constraint_expression_builder_init (&builder, solver);
gtk_constraint_expression_builder_term (&builder, width);
@@ -280,8 +291,8 @@ get_attribute (GHashTable *bound_attributes,
GtkConstraintVariable *top, *height;
GtkConstraintExpression *expr;
- top = get_attribute (bound_attributes, solver, prefix, GTK_CONSTRAINT_ATTRIBUTE_TOP);
- height = get_attribute (bound_attributes, solver, prefix, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
+ top = gtk_constraint_layout_get_attribute (layout, GTK_CONSTRAINT_ATTRIBUTE_TOP, prefix, widget,
bound_attributes);
+ height = gtk_constraint_layout_get_attribute (layout, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT, prefix,
widget, bound_attributes);
gtk_constraint_expression_builder_init (&builder, solver);
gtk_constraint_expression_builder_term (&builder, height);
@@ -330,62 +341,17 @@ get_attribute (GHashTable *bound_attributes,
return res;
}
-static GtkConstraintAttribute
-resolve_direction (GtkConstraintAttribute attr,
- GtkWidget *widget)
-{
- GtkTextDirection text_dir;
-
- /* Resolve the start/end attributes depending on the layout's text direction */
-
- if (widget)
- text_dir = gtk_widget_get_direction (widget);
- else
- text_dir = GTK_TEXT_DIR_LTR;
-
- if (attr == GTK_CONSTRAINT_ATTRIBUTE_START)
- {
- if (text_dir == GTK_TEXT_DIR_RTL)
- attr = GTK_CONSTRAINT_ATTRIBUTE_RIGHT;
- else
- attr = GTK_CONSTRAINT_ATTRIBUTE_LEFT;
- }
- else if (attr == GTK_CONSTRAINT_ATTRIBUTE_END)
- {
- if (text_dir == GTK_TEXT_DIR_RTL)
- attr = GTK_CONSTRAINT_ATTRIBUTE_LEFT;
- else
- attr = GTK_CONSTRAINT_ATTRIBUTE_RIGHT;
- }
-
- return attr;
-}
-
-static GtkConstraintVariable *
-get_child_attribute (GtkConstraintLayoutChild *self,
- GtkConstraintSolver *solver,
- GtkWidget *widget,
- GtkConstraintAttribute attr)
-{
- const char *prefix = gtk_widget_get_name (widget);
-
- attr = resolve_direction (attr, widget);
-
- return get_attribute (self->bound_attributes, solver, prefix, attr);
-}
-
static GtkConstraintVariable *
-get_guide_attribute (GtkConstraintLayout *layout,
- GtkConstraintGuide *guide,
- GtkConstraintSolver *solver,
+get_child_attribute (GtkConstraintLayout *layout,
+ GtkWidget *widget,
GtkConstraintAttribute attr)
{
- GtkLayoutManager *manager = GTK_LAYOUT_MANAGER (layout);
- GtkWidget *widget = gtk_layout_manager_get_widget (manager);
+ GtkConstraintLayoutChild *child_info;
+ const char *prefix = gtk_widget_get_name (widget);
- attr = resolve_direction (attr, widget);
+ child_info = GTK_CONSTRAINT_LAYOUT_CHILD (gtk_layout_manager_get_layout_child (GTK_LAYOUT_MANAGER
(layout), widget));
- return get_attribute (guide->bound_attributes, solver, "guide", attr);
+ return gtk_constraint_layout_get_attribute (layout, attr, prefix, widget, child_info->bound_attributes);
}
static void
@@ -645,20 +611,14 @@ layout_add_constraint (GtkConstraintLayout *self,
else if (GTK_IS_WIDGET (target) &&
gtk_widget_get_parent (GTK_WIDGET (target)) == layout_widget)
{
- GtkLayoutChild *child_info;
-
- child_info = gtk_layout_manager_get_layout_child (GTK_LAYOUT_MANAGER (self), GTK_WIDGET (target));
- target_attr = get_child_attribute (GTK_CONSTRAINT_LAYOUT_CHILD (child_info),
- solver,
- GTK_WIDGET (target),
- attr);
+ target_attr = get_child_attribute (self, GTK_WIDGET (target), attr);
}
else if (GTK_IS_CONSTRAINT_GUIDE (target))
{
GtkConstraintGuide *guide;
guide = (GtkConstraintGuide*)g_hash_table_lookup (self->guides, target);
- target_attr = get_guide_attribute (self, guide, solver, attr);
+ target_attr = gtk_constraint_guide_get_attribute (guide, attr);
}
else
{
@@ -686,20 +646,14 @@ layout_add_constraint (GtkConstraintLayout *self,
else if (GTK_IS_WIDGET (source) &&
gtk_widget_get_parent (GTK_WIDGET (source)) == layout_widget)
{
- GtkLayoutChild *child_info;
-
- child_info = gtk_layout_manager_get_layout_child (GTK_LAYOUT_MANAGER (self), GTK_WIDGET (source));
- source_attr = get_child_attribute (GTK_CONSTRAINT_LAYOUT_CHILD (child_info),
- solver,
- GTK_WIDGET (source),
- attr);
+ source_attr = get_child_attribute (self, GTK_WIDGET (source), attr);
}
else if (GTK_IS_CONSTRAINT_GUIDE (source))
{
GtkConstraintGuide *guide;
guide = (GtkConstraintGuide*)g_hash_table_lookup (self->guides, source);
- source_attr = get_guide_attribute (self, guide, solver, attr);
+ source_attr = gtk_constraint_guide_get_attribute (guide, attr);
}
else
{
@@ -763,7 +717,6 @@ gtk_constraint_layout_measure (GtkLayoutManager *manager,
child != NULL;
child = _gtk_widget_get_next_sibling (child))
{
- GtkConstraintLayoutChild *child_info;
GtkConstraintVariable *width_var, *height_var;
GtkConstraintRef *constraint;
int min_size = 0, nat_size = 0;
@@ -771,14 +724,11 @@ gtk_constraint_layout_measure (GtkLayoutManager *manager,
if (!gtk_widget_should_layout (child))
continue;
- child_info = GTK_CONSTRAINT_LAYOUT_CHILD (gtk_layout_manager_get_layout_child (manager, child));
-
gtk_widget_measure (child, orientation, -1,
&min_size, &nat_size,
NULL, NULL);
- width_var = get_child_attribute (child_info, solver, child,
- GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
+ width_var = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
constraint =
gtk_constraint_solver_add_constraint (solver,
@@ -796,8 +746,7 @@ gtk_constraint_layout_measure (GtkLayoutManager *manager,
GTK_CONSTRAINT_WEIGHT_MEDIUM);
g_ptr_array_add (size_constraints, constraint);
- height_var = get_child_attribute (child_info, solver, child,
- GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
+ height_var = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
constraint =
gtk_constraint_solver_add_constraint (solver,
@@ -939,7 +888,6 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
child != NULL;
child = _gtk_widget_get_next_sibling (child))
{
- GtkConstraintLayoutChild *child_info;
GtkConstraintVariable *width_var, *height_var;
GtkRequisition min_req, nat_req;
GtkConstraintRef *constraint;
@@ -947,12 +895,9 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
if (!gtk_widget_should_layout (child))
continue;
- child_info = GTK_CONSTRAINT_LAYOUT_CHILD (gtk_layout_manager_get_layout_child (manager, child));
-
gtk_widget_get_preferred_size (child, &min_req, &nat_req);
- width_var = get_child_attribute (child_info, solver, child,
- GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
+ width_var = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
constraint =
gtk_constraint_solver_add_constraint (solver,
@@ -963,15 +908,14 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
g_ptr_array_add (size_constraints, constraint);
constraint =
- gtk_constraint_solver_add_constraint (solver,
+gtk_constraint_solver_add_constraint (solver,
width_var,
GTK_CONSTRAINT_RELATION_EQ,
gtk_constraint_expression_new (nat_req.width),
GTK_CONSTRAINT_WEIGHT_MEDIUM);
g_ptr_array_add (size_constraints, constraint);
- height_var = get_child_attribute (child_info, solver, child,
- GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
+ height_var = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
constraint =
gtk_constraint_solver_add_constraint (solver,
@@ -996,21 +940,18 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
{
GtkConstraintVariable *var_top, *var_left, *var_width, *var_height;
GtkConstraintVariable *var_baseline;
- GtkConstraintLayoutChild *child_info;
GtkAllocation child_alloc;
int child_baseline = -1;
if (!gtk_widget_should_layout (child))
continue;
- child_info = GTK_CONSTRAINT_LAYOUT_CHILD (gtk_layout_manager_get_layout_child (manager, child));
-
/* Retrieve all the values associated with the child */
- var_top = get_child_attribute (child_info, solver, child, GTK_CONSTRAINT_ATTRIBUTE_TOP);
- var_left = get_child_attribute (child_info, solver, child, GTK_CONSTRAINT_ATTRIBUTE_LEFT);
- var_width = get_child_attribute (child_info, solver, child, GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
- var_height = get_child_attribute (child_info, solver, child, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
- var_baseline = get_child_attribute (child_info, solver, child, GTK_CONSTRAINT_ATTRIBUTE_BASELINE);
+ var_top = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_TOP);
+ var_left = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_LEFT);
+ var_width = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_WIDTH);
+ var_height = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_HEIGHT);
+ var_baseline = get_child_attribute (self, child, GTK_CONSTRAINT_ATTRIBUTE_BASELINE);
GTK_NOTE (LAYOUT,
g_print ("Allocating child '%s'[%p] with { .x: %g, .y: %g, .w: %g, .h: %g, .b: %g }\n",
@@ -1051,10 +992,6 @@ gtk_constraint_layout_allocate (GtkLayoutManager *manager,
gtk_constraint_solver_remove_constraint (solver, stay_l);
}
-static void gtk_constraint_guide_update (GtkConstraintGuide *guide,
- GuideValue index);
-static void gtk_constraint_guide_detach (GtkConstraintGuide *guide);
-
static void
gtk_constraint_layout_root (GtkLayoutManager *manager)
{
@@ -1081,10 +1018,7 @@ gtk_constraint_layout_root (GtkLayoutManager *manager)
while (g_hash_table_iter_next (&iter, &key, NULL))
{
GtkConstraintGuide *guide = key;
- gtk_constraint_guide_update (guide, GUIDE_MIN_WIDTH);
- gtk_constraint_guide_update (guide, GUIDE_MIN_HEIGHT);
- gtk_constraint_guide_update (guide, GUIDE_NAT_WIDTH);
- gtk_constraint_guide_update (guide, GUIDE_NAT_HEIGHT);
+ gtk_constraint_guide_update (guide);
}
}
@@ -1220,211 +1154,6 @@ gtk_constraint_layout_remove_constraint (GtkConstraintLayout *manager,
gtk_layout_manager_layout_changed (GTK_LAYOUT_MANAGER (manager));
}
-static void
-gtk_constraint_guide_constraint_target_iface_init (GtkConstraintTargetInterface *iface)
-{
-}
-
-struct _GtkConstraintGuideClass {
- GObjectClass parent_class;
-};
-
-enum {
- GUIDE_PROP_MIN_WIDTH = 1,
- GUIDE_PROP_MIN_HEIGHT,
- GUIDE_PROP_NAT_WIDTH,
- GUIDE_PROP_NAT_HEIGHT,
- LAST_GUIDE_PROP
-};
-
-static GParamSpec *guide_props[LAST_GUIDE_PROP];
-
-G_DEFINE_TYPE_WITH_CODE (GtkConstraintGuide, gtk_constraint_guide, G_TYPE_OBJECT,
- G_IMPLEMENT_INTERFACE (GTK_TYPE_CONSTRAINT_TARGET,
- gtk_constraint_guide_constraint_target_iface_init))
-
-static void
-gtk_constraint_guide_init (GtkConstraintGuide *guide)
-{
- guide->bound_attributes =
- g_hash_table_new_full (g_str_hash, g_str_equal,
- NULL,
- (GDestroyNotify) gtk_constraint_variable_unref);
-}
-
-static void
-gtk_constraint_guide_update (GtkConstraintGuide *guide,
- GuideValue index)
-{
- GtkConstraintSolver *solver;
- GtkConstraintVariable *var;
- int attr[LAST_GUIDE_VALUE] = {
- GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
- GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
- GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
- GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
- };
- int relation[LAST_GUIDE_VALUE] = {
- GTK_CONSTRAINT_RELATION_GE,
- GTK_CONSTRAINT_RELATION_GE,
- GTK_CONSTRAINT_RELATION_EQ,
- GTK_CONSTRAINT_RELATION_EQ,
- };
- double weight[LAST_GUIDE_VALUE] = {
- GTK_CONSTRAINT_WEIGHT_REQUIRED,
- GTK_CONSTRAINT_WEIGHT_REQUIRED,
- GTK_CONSTRAINT_WEIGHT_MEDIUM,
- GTK_CONSTRAINT_WEIGHT_MEDIUM,
- };
-
- if (!guide->layout)
- return;
-
- solver = guide->layout->solver;
-
- if (!solver)
- return;
-
- if (guide->constraints[index] != NULL)
- gtk_constraint_solver_remove_constraint (solver, guide->constraints[index]);
-
- var = get_guide_attribute (guide->layout, guide, solver, attr[index]);
- guide->constraints[index] =
- gtk_constraint_solver_add_constraint (solver,
- var,
- relation[index],
- gtk_constraint_expression_new (guide->values[index]),
- weight[index]);
-}
-
-static void
-gtk_constraint_guide_detach (GtkConstraintGuide *guide)
-{
- GtkConstraintSolver *solver;
- int i;
-
- if (!guide->layout)
- return;
-
- solver = guide->layout->solver;
- if (!solver)
- return;
-
- for (i = 0; i < LAST_GUIDE_VALUE; i++)
- {
- gtk_constraint_solver_remove_constraint (solver, guide->constraints[i]);
- guide->constraints[i] = NULL;
- }
-
- g_hash_table_remove_all (guide->bound_attributes);
-}
-
-static void
-gtk_constraint_guide_set_property (GObject *gobject,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GtkConstraintGuide *self = GTK_CONSTRAINT_GUIDE (gobject);
- int val;
- GuideValue index;
-
- switch (prop_id)
- {
- case GUIDE_PROP_MIN_WIDTH:
- case GUIDE_PROP_MIN_HEIGHT:
- case GUIDE_PROP_NAT_WIDTH:
- case GUIDE_PROP_NAT_HEIGHT:
- val = g_value_get_int (value);
- index = prop_id - 1;
- if (self->values[index] != val)
- {
- self->values[index] = val;
- g_object_notify_by_pspec (gobject, pspec);
- gtk_constraint_guide_update (self, index);
- }
- break;
-
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
- break;
- }
-}
-
-static void
-gtk_constraint_guide_get_property (GObject *gobject,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GtkConstraintGuide *self = GTK_CONSTRAINT_GUIDE (gobject);
-
- switch (prop_id)
- {
- case GUIDE_PROP_MIN_WIDTH:
- case GUIDE_PROP_MIN_HEIGHT:
- case GUIDE_PROP_NAT_WIDTH:
- case GUIDE_PROP_NAT_HEIGHT:
- g_value_set_int (value, self->values[prop_id - 1]);
- break;
-
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
- break;
- }
-}
-
-static void
-gtk_constraint_guide_finalize (GObject *object)
-{
- GtkConstraintGuide *self = GTK_CONSTRAINT_GUIDE (object);
-
- g_clear_pointer (&self->bound_attributes, g_hash_table_unref);
-
- G_OBJECT_CLASS (gtk_constraint_guide_parent_class)->finalize (object);
-}
-
-static void
-gtk_constraint_guide_class_init (GtkConstraintGuideClass *class)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (class);
-
- object_class->finalize = gtk_constraint_guide_finalize;
- object_class->set_property = gtk_constraint_guide_set_property;
- object_class->get_property = gtk_constraint_guide_get_property;
-
- guide_props[GUIDE_PROP_MIN_WIDTH] =
- g_param_spec_int ("min-width",
- "Minimum width",
- "Minimum width",
- 0, G_MAXINT, 0,
- G_PARAM_READWRITE|
- G_PARAM_EXPLICIT_NOTIFY);
- guide_props[GUIDE_PROP_MIN_HEIGHT] =
- g_param_spec_int ("min-height",
- "Minimum height",
- "Minimum height",
- 0, G_MAXINT, 0,
- G_PARAM_READWRITE|
- G_PARAM_EXPLICIT_NOTIFY);
- guide_props[GUIDE_PROP_NAT_WIDTH] =
- g_param_spec_int ("nat-width",
- "Natural width",
- "Natural width",
- 0, G_MAXINT, 0,
- G_PARAM_READWRITE|
- G_PARAM_EXPLICIT_NOTIFY);
- guide_props[GUIDE_PROP_NAT_HEIGHT] =
- g_param_spec_int ("nat-height",
- "Natural height",
- "Natural height",
- 0, G_MAXINT, 0,
- G_PARAM_READWRITE|
- G_PARAM_EXPLICIT_NOTIFY);
-
- g_object_class_install_properties (object_class, LAST_GUIDE_PROP, guide_props);
-}
-
/**
* gtk_constraint_layout_add_guide:
* @layout: a #GtkConstraintLayout
@@ -1443,10 +1172,9 @@ gtk_constraint_layout_add_guide (GtkConstraintLayout *layout,
{
g_return_if_fail (GTK_IS_CONSTRAINT_LAYOUT (layout));
g_return_if_fail (GTK_IS_CONSTRAINT_GUIDE (guide));
- g_return_if_fail (guide->layout == NULL);
-
- guide->layout = layout;
+ g_return_if_fail (gtk_constraint_guide_get_layout (guide) == NULL);
+ gtk_constraint_guide_set_layout (guide, layout);
g_hash_table_add (layout->guides, guide);
gtk_layout_manager_layout_changed (GTK_LAYOUT_MANAGER (layout));
@@ -1466,11 +1194,11 @@ gtk_constraint_layout_remove_guide (GtkConstraintLayout *layout,
{
g_return_if_fail (GTK_IS_CONSTRAINT_LAYOUT (layout));
g_return_if_fail (GTK_IS_CONSTRAINT_GUIDE (guide));
- g_return_if_fail (guide->layout == layout);
+ g_return_if_fail (gtk_constraint_guide_get_layout (guide) == layout);
gtk_constraint_guide_detach (guide);
- guide->layout = NULL;
+ gtk_constraint_guide_set_layout (guide, NULL);
g_hash_table_remove (layout->guides, guide);
gtk_layout_manager_layout_changed (GTK_LAYOUT_MANAGER (layout));
diff --git a/gtk/gtkconstraintlayout.h b/gtk/gtkconstraintlayout.h
index 758fcefb20..eed95e53ec 100644
--- a/gtk/gtkconstraintlayout.h
+++ b/gtk/gtkconstraintlayout.h
@@ -20,12 +20,12 @@
#include <gtk/gtklayoutmanager.h>
#include <gtk/gtkconstraint.h>
+#include <gtk/gtkconstraintguide.h>
G_BEGIN_DECLS
#define GTK_TYPE_CONSTRAINT_LAYOUT (gtk_constraint_layout_get_type ())
#define GTK_TYPE_CONSTRAINT_LAYOUT_CHILD (gtk_constraint_layout_child_get_type ())
-#define GTK_TYPE_CONSTRAINT_GUIDE (gtk_constraint_guide_get_type ())
/**
* GtkConstraintLayoutChild:
@@ -35,21 +35,6 @@ G_BEGIN_DECLS
GDK_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (GtkConstraintLayoutChild, gtk_constraint_layout_child, GTK, CONSTRAINT_LAYOUT_CHILD,
GtkLayoutChild)
-/**
- * GtkConstraintGuide:
- *
- * An object that can be added to a #GtkConstraintLayout and be
- * used in constraints like a widget, without being drawn. Guides
- * have a minimal and natural size. Depending on the constraints
- * that are applied, they can act like a guideline that widgets
- * can be aligned to, or like 'flexible space'.
- */
-GDK_AVAILABLE_IN_ALL
-G_DECLARE_FINAL_TYPE (GtkConstraintGuide, gtk_constraint_guide, GTK, CONSTRAINT_GUIDE, GObject)
-
-GDK_AVAILABLE_IN_ALL
-GtkConstraintGuide * gtk_constraint_guide_new (void);
-
/**
* GtkConstraintLayout:
*
diff --git a/gtk/gtkconstraintlayoutprivate.h b/gtk/gtkconstraintlayoutprivate.h
new file mode 100644
index 0000000000..0d591911fd
--- /dev/null
+++ b/gtk/gtkconstraintlayoutprivate.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2019 Red Hat, Inc.
+ *
+ * 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 2.1 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/>.
+ *
+ * Author: Matthias Clasen
+ */
+
+#pragma once
+
+#include "gtkconstraintlayout.h"
+#include "gtkconstraintsolverprivate.h"
+
+G_BEGIN_DECLS
+
+GtkConstraintSolver *
+gtk_constraint_layout_get_solver (GtkConstraintLayout *layout);
+
+GtkConstraintVariable *
+gtk_constraint_layout_get_attribute (GtkConstraintLayout *layout,
+ GtkConstraintAttribute attr,
+ const char *prefix,
+ GtkWidget *widget,
+ GHashTable *bound_attributes);
+
+G_END_DECLS
diff --git a/gtk/meson.build b/gtk/meson.build
index a79e3e7ecc..860af504bf 100644
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -202,6 +202,7 @@ gtk_public_sources = files([
'gtkcombobox.c',
'gtkcomboboxtext.c',
'gtkcomposetable.c',
+ 'gtkconstraintguide.c',
'gtkconstraintlayout.c',
'gtkconstraint.c',
'gtkcontainer.c',
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]
