Add a constraint editor demo

This is an initial cut at providing a tool
for interactive exploration of constraints.
This commit is contained in:
Matthias Clasen 2019-06-30 13:25:30 +00:00 committed by Emmanuele Bassi
parent 9a463056d0
commit 514de0b91a
20 changed files with 2431 additions and 0 deletions

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#include "config.h"
#include "constraint-editor-application.h"
#include "constraint-editor-window.h"
struct _ConstraintEditorApplication
{
GtkApplication parent_instance;
};
G_DEFINE_TYPE(ConstraintEditorApplication, constraint_editor_application, GTK_TYPE_APPLICATION);
static void
constraint_editor_application_init (ConstraintEditorApplication *app)
{
}
static void
quit_activated (GSimpleAction *action,
GVariant *parameter,
gpointer data)
{
g_application_quit (G_APPLICATION (data));
}
static GActionEntry app_entries[] =
{
{ "quit", quit_activated, NULL, NULL, NULL }
};
static void
constraint_editor_application_startup (GApplication *app)
{
const char *quit_accels[2] = { "<Ctrl>Q", NULL };
GtkCssProvider *provider;
G_APPLICATION_CLASS (constraint_editor_application_parent_class)->startup (app);
g_action_map_add_action_entries (G_ACTION_MAP (app),
app_entries, G_N_ELEMENTS (app_entries),
app);
gtk_application_set_accels_for_action (GTK_APPLICATION (app), "app.quit", quit_accels);
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_resource (provider, "/org/gtk/gtk4/constraint-editor/constraint-editor.css");
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
static void
constraint_editor_application_activate (GApplication *app)
{
ConstraintEditorWindow *win;
win = constraint_editor_window_new (CONSTRAINT_EDITOR_APPLICATION (app));
gtk_window_present (GTK_WINDOW (win));
}
static void
constraint_editor_application_class_init (ConstraintEditorApplicationClass *class)
{
GApplicationClass *application_class = G_APPLICATION_CLASS (class);
application_class->startup = constraint_editor_application_startup;
application_class->activate = constraint_editor_application_activate;
}
ConstraintEditorApplication *
constraint_editor_application_new (void)
{
return g_object_new (CONSTRAINT_EDITOR_APPLICATION_TYPE,
"application-id", "org.gtk.gtk4.ConstraintEditor",
NULL);
}

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define CONSTRAINT_EDITOR_APPLICATION_TYPE (constraint_editor_application_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintEditorApplication, constraint_editor_application, CONSTRAINT, EDITOR_APPLICATION, GtkApplication)
ConstraintEditorApplication *constraint_editor_application_new (void);

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#include "config.h"
#include "constraint-editor-window.h"
#include "constraint-view.h"
#include "constraint-editor.h"
#include "guide-editor.h"
struct _ConstraintEditorWindow
{
GtkApplicationWindow parent_instance;
GtkWidget *paned;
GtkWidget *view;
GtkWidget *list;
};
G_DEFINE_TYPE(ConstraintEditorWindow, constraint_editor_window, GTK_TYPE_APPLICATION_WINDOW);
gboolean
constraint_editor_window_load (ConstraintEditorWindow *self,
GFile *file)
{
GBytes *bytes;
bytes = g_file_load_bytes (file, NULL, NULL, NULL);
if (bytes == NULL)
return FALSE;
if (!g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
{
g_bytes_unref (bytes);
return FALSE;
}
#if 0
gtk_text_buffer_get_end_iter (self->text_buffer, &end);
gtk_text_buffer_insert (self->text_buffer,
&end,
g_bytes_get_data (bytes, NULL),
g_bytes_get_size (bytes));
#endif
g_bytes_unref (bytes);
return TRUE;
}
static void
constraint_editor_window_finalize (GObject *object)
{
//ConstraintEditorWindow *self = (ConstraintEditorWindow *)object;
G_OBJECT_CLASS (constraint_editor_window_parent_class)->finalize (object);
}
static int child_counter;
static int guide_counter;
static void
add_child (ConstraintEditorWindow *win)
{
char *name;
child_counter++;
name = g_strdup_printf ("Child %d", child_counter);
constraint_view_add_child (CONSTRAINT_VIEW (win->view), name);
g_free (name);
}
static void
add_guide (ConstraintEditorWindow *win)
{
char *name;
GtkConstraintGuide *guide;
guide_counter++;
name = g_strdup_printf ("Guide %d", guide_counter);
guide = g_object_new (GTK_TYPE_CONSTRAINT_GUIDE, NULL);
g_object_set_data_full (G_OBJECT (guide), "name", name, g_free);
constraint_view_add_guide (CONSTRAINT_VIEW (win->view), guide);
}
static void
constraint_editor_done (ConstraintEditor *editor,
GtkConstraint *constraint,
ConstraintEditorWindow *win)
{
GtkConstraint *old_constraint;
g_object_get (editor, "constraint", &old_constraint, NULL);
if (old_constraint)
constraint_view_remove_constraint (CONSTRAINT_VIEW (win->view), old_constraint);
constraint_view_add_constraint (CONSTRAINT_VIEW (win->view), constraint);
g_clear_object (&old_constraint);
gtk_widget_destroy (gtk_widget_get_ancestor (GTK_WIDGET (editor), GTK_TYPE_WINDOW));
}
static void
edit_constraint (ConstraintEditorWindow *win,
GtkConstraint *constraint)
{
GtkWidget *window;
ConstraintEditor *editor;
GListModel *model;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (win));
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
if (constraint)
gtk_window_set_title (GTK_WINDOW (window), "Edit Constraint");
else
gtk_window_set_title (GTK_WINDOW (window), "Create Constraint");
model = constraint_view_get_model (CONSTRAINT_VIEW (win->view));
editor = constraint_editor_new (model, constraint);
gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (editor));
g_signal_connect (editor, "done", G_CALLBACK (constraint_editor_done), win);
gtk_widget_show (window);
}
static void
add_constraint (ConstraintEditorWindow *win)
{
edit_constraint (win, NULL);
}
static void
guide_editor_done (GuideEditor *editor,
GtkConstraintGuide *guide,
ConstraintEditorWindow *win)
{
constraint_view_guide_changed (CONSTRAINT_VIEW (win->view), guide);
gtk_widget_destroy (gtk_widget_get_ancestor (GTK_WIDGET (editor), GTK_TYPE_WINDOW));
}
static void
edit_guide (ConstraintEditorWindow *win,
GtkConstraintGuide *guide)
{
GtkWidget *window;
GuideEditor *editor;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (win));
gtk_window_set_title (GTK_WINDOW (window), "Edit Guide");
editor = guide_editor_new (guide);
gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (editor));
g_signal_connect (editor, "done", G_CALLBACK (guide_editor_done), win);
gtk_widget_show (window);
}
static void
row_activated (GtkListBox *list,
GtkListBoxRow *row,
ConstraintEditorWindow *win)
{
GObject *item;
item = G_OBJECT (g_object_get_data (G_OBJECT (row), "item"));
if (GTK_IS_CONSTRAINT (item))
edit_constraint (win, GTK_CONSTRAINT (item));
else if (GTK_IS_CONSTRAINT_GUIDE (item))
edit_guide (win, GTK_CONSTRAINT_GUIDE (item));
}
static void
constraint_editor_window_class_init (ConstraintEditorWindowClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
g_type_ensure (CONSTRAINT_VIEW_TYPE);
object_class->finalize = constraint_editor_window_finalize;
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/gtk4/constraint-editor/constraint-editor-window.ui");
gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, paned);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, view);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, list);
gtk_widget_class_bind_template_callback (widget_class, add_child);
gtk_widget_class_bind_template_callback (widget_class, add_guide);
gtk_widget_class_bind_template_callback (widget_class, add_constraint);
gtk_widget_class_bind_template_callback (widget_class, row_activated);
}
static void
row_edit (GtkButton *button,
ConstraintEditorWindow *win)
{
GtkWidget *row;
GObject *item;
row = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_LIST_BOX_ROW);
item = (GObject *)g_object_get_data (G_OBJECT (row), "item");
if (GTK_IS_CONSTRAINT (item))
edit_constraint (win, GTK_CONSTRAINT (item));
else if (GTK_IS_CONSTRAINT_GUIDE (item))
edit_guide (win, GTK_CONSTRAINT_GUIDE (item));
}
static void
mark_constraints_invalid (ConstraintEditorWindow *win,
gpointer removed)
{
GtkWidget *child;
GObject *item;
for (child = gtk_widget_get_first_child (win->list);
child;
child = gtk_widget_get_next_sibling (child))
{
item = (GObject *)g_object_get_data (G_OBJECT (child), "item");
if (GTK_IS_CONSTRAINT (item))
{
GtkConstraint *constraint = GTK_CONSTRAINT (item);
if (gtk_constraint_get_target (constraint) == (GtkConstraintTarget *)removed ||
gtk_constraint_get_source (constraint) == (GtkConstraintTarget *)removed)
{
GtkWidget *button;
button = (GtkWidget *)g_object_get_data (G_OBJECT (child), "edit");
gtk_button_set_icon_name (GTK_BUTTON (button), "dialog-warning-symbolic");
gtk_widget_set_tooltip_text (button, "Constraint is invalid");
}
}
}
}
static void
row_delete (GtkButton *button,
ConstraintEditorWindow *win)
{
GtkWidget *row;
GObject *item;
row = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_LIST_BOX_ROW);
item = (GObject *)g_object_get_data (G_OBJECT (row), "item");
if (GTK_IS_CONSTRAINT (item))
constraint_view_remove_constraint (CONSTRAINT_VIEW (win->view),
GTK_CONSTRAINT (item));
else if (GTK_IS_CONSTRAINT_GUIDE (item))
{
mark_constraints_invalid (win, item);
constraint_view_remove_guide (CONSTRAINT_VIEW (win->view),
GTK_CONSTRAINT_GUIDE (item));
}
else if (GTK_IS_WIDGET (item))
{
mark_constraints_invalid (win, item);
constraint_view_remove_child (CONSTRAINT_VIEW (win->view),
GTK_WIDGET (item));
}
}
static GtkWidget *
create_widget_func (gpointer item,
gpointer user_data)
{
ConstraintEditorWindow *win = user_data;
const char *name;
GtkWidget *row, *box, *label, *button;
name = (const char *)g_object_get_data (G_OBJECT (item), "name");
row = gtk_list_box_row_new ();
g_object_set_data (G_OBJECT (row), "item", item);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
label = gtk_label_new (name);
g_object_set (label,
"margin", 10,
NULL);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_widget_set_hexpand (label, TRUE);
gtk_container_add (GTK_CONTAINER (row), box);
gtk_container_add (GTK_CONTAINER (box), label);
if (GTK_IS_CONSTRAINT (item) || GTK_IS_CONSTRAINT_GUIDE (item))
{
button = gtk_button_new_from_icon_name ("document-edit-symbolic");
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
g_signal_connect (button, "clicked", G_CALLBACK (row_edit), win);
g_object_set_data (G_OBJECT (row), "edit", button);
gtk_container_add (GTK_CONTAINER (box), button);
button = gtk_button_new_from_icon_name ("edit-delete-symbolic");
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
g_signal_connect (button, "clicked", G_CALLBACK (row_delete), win);
gtk_container_add (GTK_CONTAINER (box), button);
}
else if (GTK_IS_WIDGET (item))
{
button = gtk_button_new_from_icon_name ("edit-delete-symbolic");
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
g_signal_connect (button, "clicked", G_CALLBACK (row_delete), win);
gtk_container_add (GTK_CONTAINER (box), button);
}
return row;
}
static void
constraint_editor_window_init (ConstraintEditorWindow *self)
{
gtk_widget_init_template (GTK_WIDGET (self));
gtk_list_box_bind_model (GTK_LIST_BOX (self->list),
constraint_view_get_model (CONSTRAINT_VIEW (self->view)),
create_widget_func,
self,
NULL);
}
ConstraintEditorWindow *
constraint_editor_window_new (ConstraintEditorApplication *application)
{
return g_object_new (CONSTRAINT_EDITOR_WINDOW_TYPE,
"application", application,
NULL);
}

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#include "constraint-editor-application.h"
#define CONSTRAINT_EDITOR_WINDOW_TYPE (constraint_editor_window_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintEditorWindow, constraint_editor_window, CONSTRAINT, EDITOR_WINDOW, GtkApplicationWindow)
ConstraintEditorWindow * constraint_editor_window_new (ConstraintEditorApplication *application);
gboolean constraint_editor_window_load (ConstraintEditorWindow *self,
GFile *file);

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<?xml version="1.0" encoding="UTF-8"?>
<interface>
<template class="ConstraintEditorWindow" parent="GtkApplicationWindow">
<style>
<class name="devel"/>
</style>
<property name="title" translatable="yes">GTK Constraint Editor</property>
<property name="default-width">1024</property>
<property name="default-height">768</property>
<child type="titlebar">
<object class="GtkHeaderBar" id="header">
<property name="title" translatable="yes">GTK Constraint Editor</property>
<property name="show-title-buttons">1</property>
</object>
</child>
<child>
<object class="GtkPaned" id="paned">
<property name="orientation">horizontal</property>
<child>
<object class="GtkBox">
<property name="orientation">vertical</property>
<child>
<object class="GtkBox">
<property name="orientation">horizontal</property>
<child>
<object class="GtkButton">
<property name="label">Add Child</property>
<signal name="clicked" handler="add_child" swapped="yes"/>
</object>
</child>
<child>
<object class="GtkButton">
<property name="label">Add Guide</property>
<signal name="clicked" handler="add_guide" swapped="yes"/>
</object>
</child>
<child>
<object class="GtkButton">
<property name="label">Add Constraint</property>
<signal name="clicked" handler="add_constraint" swapped="yes"/>
</object>
</child>
</object>
</child>
<child>
<object class="GtkScrolledWindow">
<property name="hscrollbar-policy">never</property>
<property name="vscrollbar-policy">automatic</property>
<property name="vexpand">1</property>
<child>
<object class="GtkListBox" id="list">
<property name="show-separators">1</property>
<property name="selection-mode">none</property>
<signal name="row-activated" handler="row_activated"/>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="ConstraintView" id="view">
</object>
</child>
</object>
</child>
</template>
</interface>

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#include "config.h"
#include "constraint-editor.h"
struct _ConstraintEditor
{
GtkWidget parent_instance;
GtkWidget *grid;
GtkWidget *name;
GtkWidget *target;
GtkWidget *target_attr;
GtkWidget *relation;
GtkWidget *source;
GtkWidget *source_attr;
GtkWidget *multiplier;
GtkWidget *constant;
GtkWidget *strength;
GtkWidget *preview;
GtkWidget *button;
GtkConstraint *constraint;
GListModel *model;
gboolean constructed;
};
enum {
PROP_MODEL = 1,
PROP_CONSTRAINT,
LAST_PROP
};
static GParamSpec *pspecs[LAST_PROP];
enum {
DONE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
G_DEFINE_TYPE(ConstraintEditor, constraint_editor, GTK_TYPE_WIDGET);
static const char *
get_target_name (GtkConstraintTarget *target)
{
if (target == NULL)
return "super";
else
return (const char *)g_object_get_data (G_OBJECT (target), "name");
}
static void
constraint_target_combo (GListModel *model,
GtkWidget *combo,
gboolean is_source)
{
int i;
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "super", "Super");
if (model)
{
for (i = 0; i < g_list_model_get_n_items (model); i++)
{
GObject *item = g_list_model_get_object (model, i);
const char *name;
if (GTK_IS_CONSTRAINT (item))
continue;
name = get_target_name (GTK_CONSTRAINT_TARGET (item));
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), name, name);
g_object_unref (item);
}
}
}
static void
constraint_attribute_combo (GtkWidget *combo,
gboolean is_source)
{
if (is_source)
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "none", "None");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "left", "Left");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "right", "Right");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "top", "Top");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "bottom", "Bottom");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "start", "Start");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "end", "End");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "width", "Width");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "height", "Height");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "center-x", "Center X");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "center-y", "Center Y");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "baseline", "Baseline");
}
static void
constraint_relation_combo (GtkWidget *combo)
{
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "le", "");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "eq", "=");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "ge", "");
}
static void
constraint_strength_combo (GtkWidget *combo)
{
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "weak", "Weak");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "medium", "Medium");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "strong", "Strong");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "required", "Required");
}
static gpointer
get_target (GListModel *model,
const char *id)
{
int i;
if (strcmp ("super", id) == 0)
return NULL;
for (i = 0; i < g_list_model_get_n_items (model); i++)
{
GObject *item = g_list_model_get_object (model, i);
const char *name;
if (GTK_IS_CONSTRAINT (item))
continue;
name = (const char *)g_object_get_data (item, "name");
g_object_unref (item);
if (strcmp (name, id) == 0)
return item;
}
return NULL;
}
static GtkConstraintAttribute
get_target_attr (const char *id)
{
GtkConstraintAttribute attr;
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_ATTRIBUTE);
GEnumValue *value = g_enum_get_value_by_nick (class, id);
attr = value->value;
g_type_class_unref (class);
return attr;
}
static const char *
get_attr_nick (GtkConstraintAttribute attr)
{
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_ATTRIBUTE);
GEnumValue *value = g_enum_get_value (class, attr);
const char *nick = value->value_nick;
g_type_class_unref (class);
return nick;
}
static GtkConstraintRelation
get_relation (const char *id)
{
GtkConstraintRelation relation;
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_RELATION);
GEnumValue *value = g_enum_get_value_by_nick (class, id);
relation = value->value;
g_type_class_unref (class);
return relation;
}
static const char *
get_relation_nick (GtkConstraintRelation relation)
{
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_RELATION);
GEnumValue *value = g_enum_get_value (class, relation);
const char *nick = value->value_nick;
g_type_class_unref (class);
return nick;
}
static GtkConstraintStrength
get_strength (const char *id)
{
GtkConstraintStrength strength;
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_STRENGTH);
GEnumValue *value = g_enum_get_value_by_nick (class, id);
strength = value->value;
g_type_class_unref (class);
return strength;
}
static const char *
get_strength_nick (GtkConstraintStrength strength)
{
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_STRENGTH);
GEnumValue *value = g_enum_get_value (class, strength);
const char *nick = value->value_nick;
g_type_class_unref (class);
return nick;
}
static void
create_constraint (GtkButton *button,
ConstraintEditor *editor)
{
const char *id;
gpointer target;
GtkConstraintAttribute target_attr;
gpointer source;
GtkConstraintAttribute source_attr;
GtkConstraintRelation relation;
double multiplier;
double constant;
int strength;
GtkConstraint *constraint;
const char *name;
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target));
target = get_target (editor->model, id);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target_attr));
target_attr = get_target_attr (id);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source));
source = get_target (editor->model, id);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source_attr));
source_attr = get_target_attr (id);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->relation));
relation = get_relation (id);
multiplier = g_ascii_strtod (gtk_editable_get_text (GTK_EDITABLE (editor->multiplier)), NULL);
constant = g_ascii_strtod (gtk_editable_get_text (GTK_EDITABLE (editor->constant)), NULL);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->strength));
strength = get_strength (id);
name = gtk_editable_get_text (GTK_EDITABLE (editor->name));
constraint = gtk_constraint_new (target, target_attr,
relation,
source, source_attr,
multiplier,
constant,
strength);
g_object_set_data_full (G_OBJECT (constraint), "name", g_strdup (name), g_free);
g_signal_emit (editor, signals[DONE], 0, constraint);
g_object_unref (constraint);
}
static void
source_attr_changed (ConstraintEditor *editor)
{
const char *id;
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source_attr));
if (strcmp (id, "none") == 0)
{
gtk_combo_box_set_active (GTK_COMBO_BOX (editor->source), -1);
gtk_editable_set_text (GTK_EDITABLE (editor->multiplier), "");
gtk_widget_set_sensitive (editor->source, FALSE);
gtk_widget_set_sensitive (editor->multiplier, FALSE);
}
else
{
gtk_widget_set_sensitive (editor->source, TRUE);
gtk_widget_set_sensitive (editor->multiplier, TRUE);
}
}
static void
update_preview (ConstraintEditor *editor)
{
GString *str;
const char *name;
const char *attr;
char *relation;
const char *multiplier;
const char *constant;
double c, m;
if (!editor->constructed)
return;
str = g_string_new ("");
name = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target));
attr = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target_attr));
relation = gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT (editor->relation));
if (name == NULL)
name = "[ ]";
g_string_append_printf (str, "%s.%s %s ", name, attr, relation);
g_free (relation);
constant = gtk_editable_get_text (GTK_EDITABLE (editor->constant));
c = g_ascii_strtod (constant, NULL);
attr = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source_attr));
if (strcmp (attr, "none") != 0)
{
name = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source));
multiplier = gtk_editable_get_text (GTK_EDITABLE (editor->multiplier));
m = g_ascii_strtod (multiplier, NULL);
if (name == NULL)
name = "[ ]";
g_string_append_printf (str, "%s.%s", name, attr);
if (m != 1.0)
g_string_append_printf (str, " × %g", m);
if (c > 0.0)
g_string_append_printf (str, " + %g", c);
else if (c < 0.0)
g_string_append_printf (str, " - %g", -c);
}
else
g_string_append_printf (str, "%g", c);
gtk_label_set_label (GTK_LABEL (editor->preview), str->str);
g_string_free (str, TRUE);
}
static void
update_button (ConstraintEditor *editor)
{
if (gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target)) != NULL &&
gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source)) != NULL)
gtk_widget_set_sensitive (editor->button, TRUE);
else
gtk_widget_set_sensitive (editor->button, FALSE);
}
static void
constraint_editor_init (ConstraintEditor *editor)
{
gtk_widget_init_template (GTK_WIDGET (editor));
}
static int constraint_counter;
static void
constraint_editor_constructed (GObject *object)
{
ConstraintEditor *editor = CONSTRAINT_EDITOR (object);
constraint_target_combo (editor->model, editor->target, FALSE);
constraint_attribute_combo (editor->target_attr, FALSE);
constraint_relation_combo (editor->relation);
constraint_target_combo (editor->model, editor->source, TRUE);
constraint_attribute_combo (editor->source_attr, TRUE);
constraint_strength_combo (editor->strength);
if (editor->constraint)
{
GtkConstraintTarget *target;
GtkConstraintAttribute attr;
GtkConstraintRelation relation;
GtkConstraintStrength strength;
const char *nick;
char *val;
double multiplier;
double constant;
nick = (char *)g_object_get_data (G_OBJECT (editor->constraint), "name");
gtk_editable_set_text (GTK_EDITABLE (editor->name), nick);
target = gtk_constraint_get_target (editor->constraint);
nick = get_target_name (target);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->target), nick);
attr = gtk_constraint_get_target_attribute (editor->constraint);
nick = get_attr_nick (attr);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->target_attr), nick);
target = gtk_constraint_get_source (editor->constraint);
nick = get_target_name (target);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->source), nick);
attr = gtk_constraint_get_source_attribute (editor->constraint);
nick = get_attr_nick (attr);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->source_attr), nick);
relation = gtk_constraint_get_relation (editor->constraint);
nick = get_relation_nick (relation);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->relation), nick);
multiplier = gtk_constraint_get_multiplier (editor->constraint);
val = g_strdup_printf ("%g", multiplier);
gtk_editable_set_text (GTK_EDITABLE (editor->multiplier), val);
g_free (val);
constant = gtk_constraint_get_constant (editor->constraint);
val = g_strdup_printf ("%g", constant);
gtk_editable_set_text (GTK_EDITABLE (editor->constant), val);
g_free (val);
strength = gtk_constraint_get_strength (editor->constraint);
nick = get_strength_nick (strength);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->strength), nick);
gtk_button_set_label (GTK_BUTTON (editor->button), "Apply");
}
else
{
char *name;
constraint_counter++;
name = g_strdup_printf ("Constraint %d", constraint_counter);
gtk_editable_set_text (GTK_EDITABLE (editor->name), name);
g_free (name);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->target_attr), "left");
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->source_attr), "left");
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->relation), "eq");
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->strength), "required");
gtk_editable_set_text (GTK_EDITABLE (editor->multiplier), "1.0");
gtk_editable_set_text (GTK_EDITABLE (editor->constant), "0.0");
gtk_button_set_label (GTK_BUTTON (editor->button), "Create");
}
editor->constructed = TRUE;
update_preview (editor);
update_button (editor);
}
static void
constraint_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
ConstraintEditor *self = CONSTRAINT_EDITOR (object);
switch (property_id)
{
case PROP_MODEL:
self->model = g_value_dup_object (value);
break;
case PROP_CONSTRAINT:
self->constraint = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
constraint_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
ConstraintEditor *self = CONSTRAINT_EDITOR (object);
switch (property_id)
{
case PROP_MODEL:
g_value_set_object (value, self->model);
break;
case PROP_CONSTRAINT:
g_value_set_object (value, self->constraint);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
constraint_editor_dispose (GObject *object)
{
ConstraintEditor *self = (ConstraintEditor *)object;
g_clear_pointer (&self->grid, gtk_widget_unparent);
g_clear_object (&self->model);
g_clear_object (&self->constraint);
G_OBJECT_CLASS (constraint_editor_parent_class)->dispose (object);
}
static void
constraint_editor_class_init (ConstraintEditorClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->constructed = constraint_editor_constructed;
object_class->dispose = constraint_editor_dispose;
object_class->set_property = constraint_editor_set_property;
object_class->get_property = constraint_editor_get_property;
pspecs[PROP_CONSTRAINT] =
g_param_spec_object ("constraint", "constraint", "constraint",
GTK_TYPE_CONSTRAINT,
G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
pspecs[PROP_MODEL] =
g_param_spec_object ("model", "model", "model",
G_TYPE_LIST_MODEL,
G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, LAST_PROP, pspecs);
signals[DONE] =
g_signal_new ("done",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
NULL,
G_TYPE_NONE, 1, GTK_TYPE_CONSTRAINT);
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/gtk4/constraint-editor/constraint-editor.ui");
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, grid);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, name);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, target);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, target_attr);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, relation);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, source);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, source_attr);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, multiplier);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, constant);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, strength);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, preview);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, button);
gtk_widget_class_bind_template_callback (widget_class, update_preview);
gtk_widget_class_bind_template_callback (widget_class, update_button);
gtk_widget_class_bind_template_callback (widget_class, create_constraint);
gtk_widget_class_bind_template_callback (widget_class, source_attr_changed);
}
ConstraintEditor *
constraint_editor_new (GListModel *model,
GtkConstraint *constraint)
{
return g_object_new (CONSTRAINT_EDITOR_TYPE,
"model", model,
"constraint", constraint,
NULL);
}

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constraintview {
background: black;
color: white;
}
constraintview .child {
background: red;
}
constraintview .guide {
background: blue;
}

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<?xml version="1.0" encoding="UTF-8"?>
<gresources>
<gresource prefix="/org/gtk/gtk4/constraint-editor">
<file preprocess="xml-stripblanks">constraint-editor-window.ui</file>
<file preprocess="xml-stripblanks">constraint-editor.ui</file>
<file preprocess="xml-stripblanks">guide-editor.ui</file>
<file>constraint-editor.css</file>
</gresource>
</gresources>

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define CONSTRAINT_EDITOR_TYPE (constraint_editor_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintEditor, constraint_editor, CONSTRAINT, EDITOR, GtkWidget)
ConstraintEditor * constraint_editor_new (GListModel *model,
GtkConstraint *constraint);

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<?xml version="1.0" encoding="UTF-8"?>
<interface>
<template class="ConstraintEditor" parent="GtkWidget">
<child>
<object class="GtkGrid" id="grid">
<property name="margin">20</property>
<property name="row-spacing">10</property>
<property name="column-spacing">10</property>
<child>
<object class="GtkLabel">
<property name="label">Name</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">0</property>
</layout>
</object>
</child>
<child>
<object class="GtkEntry" id="name">
<layout>
<property name="left-attach">1</property>
<property name="top-attach">0</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Target</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="target">
<signal name="changed" handler="update_preview" swapped="yes"/>
<signal name="changed" handler="update_button" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="target_attr">
<signal name="changed" handler="update_preview" swapped="yes"/>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Relation</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="relation">
<signal name="changed" handler="update_preview" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Source</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="source">
<signal name="changed" handler="update_preview" swapped="yes"/>
<signal name="changed" handler="update_button" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="source_attr">
<signal name="changed" handler="update_preview" swapped="yes"/>
<signal name="changed" handler="source_attr_changed" swapped="yes"/>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Multiplier</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">4</property>
</layout>
</object>
</child>
<child>
<object class="GtkEntry" id="multiplier">
<signal name="changed" handler="update_preview" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">4</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Constant</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">5</property>
</layout>
</object>
</child>
<child>
<object class="GtkEntry" id="constant">
<signal name="changed" handler="update_preview" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">5</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Strength</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">6</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="strength">
<layout>
<property name="left-attach">1</property>
<property name="top-attach">6</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel" id="preview">
<property name="xalign">0</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">7</property>
<property name="column-span">2</property>
</layout>
<attributes>
<attribute name="scale" value="1.44"/>
</attributes>
</object>
</child>
<child>
<object class="GtkButton" id="button">
<property name="label">Create</property>
<signal name="clicked" handler="create_constraint"/>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">8</property>
</layout>
</object>
</child>
</object>
</child>
</template>
</interface>

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#include "constraint-view-child.h"
struct _ConstraintViewChild
{
GObject parent_instance;
char *name;
};
enum {
PROP_NAME = 1,
LAST_PROP
};
static GParamSpec props[LAST_PROP];
G_DEFINE_TYPE (ConstraintViewChild, constraint_view_child, G_TYPE_OBJECT)
static void
constraint_view_child_init (ConstraintViewChild *child)
{
}
static void
constraint_view_child_finalize (GObject *object)
{
ConstraintViewChild *child = CONSTRAINT_VIEW_CHILD (object);
g_free (child->name);
G_OBJECT_CLASS (constraint_view_child_parent_class)->finalize (object);
}
static void
constraint_view_child_set_property (GObject *object,
static void
constraint_view_child_class_init (ConstraintViewChildClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = constraint_view_child_finalize;
object_class->get_property = constraint_view_child_get_property;
object_class->set_property = constraint_view_child_set_property;
props[PROP_NAME] =
g_param_spec_string ("name", "name", "name",
NULL,
G_PARAM_READWRITE);
g_object_class_install_properties (object_class, LAST_PROP, props);
}
#define CONSTRAINT_VIEW_CHILD_TYPE (constraint_view_get_type ())
G_DECLARE_TYPE (ConstraintViewChild, constraint_view_child, CONSTRAINT, VIEW_CHILD, GObject)
#define CONSTRAINT_VIEW_WIDGET_TYPE (constraint_view_widget_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewWidget, constraint_view_widget, CONSTRAINT, VIEW_WIDGET, ConstraintViewChild)
ConstraintViewWidget * constraint_view_widget_new (void);
#define CONSTRAINT_VIEW_GUIDE_TYPE (constraint_view_guide_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewGuide, constraint_view_guide, CONSTRAINT, VIEW_GUIDE, ConstraintViewChild)
ConstraintViewGuide * constraint_view_guide_new (void);
#define CONSTRAINT_VIEW_CONSTRAINT_TYPE (constraint_view_constraint_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewConstraint, constraint_view_constraint, CONSTRAINT, VIEW_CONSTRAINT, ConstraintViewChild)
ConstraintViewGuide * constraint_view_constraint_new (void);

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define CONSTRAINT_VIEW_CHILD_TYPE (constraint_view_get_type ())
G_DECLARE_TYPE (ConstraintViewChild, constraint_view_child, CONSTRAINT, VIEW_CHILD, GObject)
#define CONSTRAINT_VIEW_WIDGET_TYPE (constraint_view_widget_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewWidget, constraint_view_widget, CONSTRAINT, VIEW_WIDGET, ConstraintViewChild)
ConstraintViewWidget * constraint_view_widget_new (void);
#define CONSTRAINT_VIEW_GUIDE_TYPE (constraint_view_guide_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewGuide, constraint_view_guide, CONSTRAINT, VIEW_GUIDE, ConstraintViewChild)
ConstraintViewGuide * constraint_view_guide_new (void);
#define CONSTRAINT_VIEW_CONSTRAINT_TYPE (constraint_view_constraint_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewConstraint, constraint_view_constraint, CONSTRAINT, VIEW_CONSTRAINT, ConstraintViewChild)
ConstraintViewGuide * constraint_view_constraint_new (void);

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/* Copyright (C) 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 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <gtk/gtk.h>
#include "constraint-view.h"
struct _ConstraintView
{
GtkWidget parent;
GListStore *store;
};
G_DEFINE_TYPE (ConstraintView, constraint_view, GTK_TYPE_WIDGET);
static void
constraint_view_dispose (GObject *object)
{
ConstraintView *view = CONSTRAINT_VIEW (object);
GtkWidget *child;
while ((child = gtk_widget_get_first_child (GTK_WIDGET (view))) != NULL)
gtk_widget_unparent (child);
g_clear_object (&view->store);
G_OBJECT_CLASS (constraint_view_parent_class)->dispose (object);
}
static void
constraint_view_class_init (ConstraintViewClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->dispose = constraint_view_dispose;
gtk_widget_class_set_css_name (widget_class, "constraintview");
}
static void
constraint_view_init (ConstraintView *self)
{
gtk_widget_set_layout_manager (GTK_WIDGET (self),
gtk_constraint_layout_new ());
self->store = g_list_store_new (G_TYPE_OBJECT);
}
ConstraintView *
constraint_view_new (void)
{
return g_object_new (CONSTRAINT_VIEW_TYPE, NULL);
}
void
constraint_view_add_child (ConstraintView *view,
const char *name)
{
GtkWidget *frame;
GtkWidget *label;
label = gtk_label_new (name);
frame = gtk_frame_new (NULL);
gtk_style_context_add_class (gtk_widget_get_style_context (frame), "child");
g_object_set_data_full (G_OBJECT (frame), "name", g_strdup (name), g_free);
gtk_container_add (GTK_CONTAINER (frame), label);
gtk_widget_set_parent (frame, GTK_WIDGET (view));
g_list_store_append (view->store, frame);
}
void
constraint_view_remove_child (ConstraintView *view,
GtkWidget *child)
{
int i;
gtk_widget_unparent (child);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (view->store)); i++)
{
if (g_list_model_get_item (G_LIST_MODEL (view->store), i) == (GObject*)child)
{
g_list_store_remove (view->store, i);
break;
}
}
}
void
constraint_view_add_guide (ConstraintView *view,
GtkConstraintGuide *guide)
{
GtkLayoutManager *manager;
GtkWidget *frame;
GtkWidget *label;
const char *name;
GtkConstraint *constraint;
name = (const char *)g_object_get_data (G_OBJECT (guide), "name");
label = gtk_label_new (name);
frame = gtk_frame_new (NULL);
gtk_style_context_add_class (gtk_widget_get_style_context (frame), "guide");
g_object_set_data_full (G_OBJECT (frame), "name", g_strdup (name), g_free);
gtk_container_add (GTK_CONTAINER (frame), label);
gtk_widget_set_parent (frame, GTK_WIDGET (view));
g_object_set_data (G_OBJECT (guide), "frame", frame);
g_object_set_data (G_OBJECT (guide), "label", label);
manager = gtk_widget_get_layout_manager (GTK_WIDGET (view));
gtk_constraint_layout_add_guide (GTK_CONSTRAINT_LAYOUT (manager),
g_object_ref (guide));
constraint = gtk_constraint_new (frame,
GTK_CONSTRAINT_ATTRIBUTE_LEFT,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_LEFT,
1.0, 0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
g_object_set_data (G_OBJECT (guide), "left-constraint", constraint);
constraint = gtk_constraint_new (frame,
GTK_CONSTRAINT_ATTRIBUTE_TOP,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_TOP,
1.0, 0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
g_object_set_data (G_OBJECT (guide), "top-constraint", constraint);
constraint = gtk_constraint_new (frame,
GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
1.0, 0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
g_object_set_data (G_OBJECT (guide), "width-constraint", constraint);
constraint = gtk_constraint_new (frame,
GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
1.0, 0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
g_object_set_data (G_OBJECT (guide), "height-constraint", constraint);
g_list_store_append (view->store, guide);
}
void
constraint_view_guide_changed (ConstraintView *view,
GtkConstraintGuide *guide)
{
GtkWidget *label;
const char *name;
int i;
name = (const char *)g_object_get_data (G_OBJECT (guide), "name");
label = (GtkWidget *)g_object_get_data (G_OBJECT (guide), "label");
gtk_label_set_label (GTK_LABEL (label), name);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (view->store)); i++)
{
if (g_list_model_get_item (G_LIST_MODEL (view->store), i) == (GObject*)guide)
{
g_list_model_items_changed (G_LIST_MODEL (view->store), i, 1, 1);
break;
}
}
}
void
constraint_view_remove_guide (ConstraintView *view,
GtkConstraintGuide *guide)
{
GtkLayoutManager *manager;
GtkWidget *frame;
GtkConstraint *constraint;
int i;
manager = gtk_widget_get_layout_manager (GTK_WIDGET (view));
constraint = (GtkConstraint*)g_object_get_data (G_OBJECT (guide), "left-constraint");
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
constraint = (GtkConstraint*)g_object_get_data (G_OBJECT (guide), "top-constraint");
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
constraint = (GtkConstraint*)g_object_get_data (G_OBJECT (guide), "width-constraint");
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
constraint = (GtkConstraint*)g_object_get_data (G_OBJECT (guide), "height-constraint");
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
frame = (GtkWidget *)g_object_get_data (G_OBJECT (guide), "frame");
gtk_widget_unparent (frame);
gtk_constraint_layout_remove_guide (GTK_CONSTRAINT_LAYOUT (manager),
guide);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (view->store)); i++)
{
if (g_list_model_get_item (G_LIST_MODEL (view->store), i) == (GObject*)guide)
{
g_list_store_remove (view->store, i);
break;
}
}
}
void
constraint_view_add_constraint (ConstraintView *view,
GtkConstraint *constraint)
{
GtkLayoutManager *manager;
manager = gtk_widget_get_layout_manager (GTK_WIDGET (view));
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
g_object_ref (constraint));
g_list_store_append (view->store, constraint);
}
void
constraint_view_remove_constraint (ConstraintView *view,
GtkConstraint *constraint)
{
GtkLayoutManager *manager;
int i;
manager = gtk_widget_get_layout_manager (GTK_WIDGET (view));
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (view->store)); i++)
{
if (g_list_model_get_item (G_LIST_MODEL (view->store), i) == (GObject*)constraint)
{
g_list_store_remove (view->store, i);
break;
}
}
}
GListModel *
constraint_view_get_model (ConstraintView *view)
{
return G_LIST_MODEL (view->store);
}

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define CONSTRAINT_VIEW_TYPE (constraint_view_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintView, constraint_view, CONSTRAINT, VIEW, GtkWidget)
ConstraintView * constraint_view_new (void);
void constraint_view_add_child (ConstraintView *view,
const char *name);
void constraint_view_remove_child (ConstraintView *view,
GtkWidget *child);
void constraint_view_add_guide (ConstraintView *view,
GtkConstraintGuide *guide);
void constraint_view_remove_guide (ConstraintView *view,
GtkConstraintGuide *guide);
void constraint_view_guide_changed (ConstraintView *view,
GtkConstraintGuide *guide);
void constraint_view_add_constraint (ConstraintView *view,
GtkConstraint *constraint);
void constraint_view_remove_constraint (ConstraintView *view,
GtkConstraint *constraint);
GListModel * constraint_view_get_model (ConstraintView *view);

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#include "config.h"
#include "guide-editor.h"
struct _GuideEditor
{
GtkWidget parent_instance;
GtkWidget *grid;
GtkWidget *name;
GtkWidget *min_width;
GtkWidget *min_height;
GtkWidget *nat_width;
GtkWidget *nat_height;
GtkWidget *max_width;
GtkWidget *max_height;
GtkWidget *strength;
GtkWidget *button;
GtkConstraintGuide *guide;
gboolean constructed;
};
enum {
PROP_GUIDE = 1,
LAST_PROP
};
static GParamSpec *pspecs[LAST_PROP];
enum {
DONE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
G_DEFINE_TYPE(GuideEditor, guide_editor, GTK_TYPE_WIDGET);
static void
guide_strength_combo (GtkWidget *combo)
{
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "weak", "Weak");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "medium", "Medium");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "strong", "Strong");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "required", "Required");
}
#if 0
static GtkConstraintStrength
get_strength (const char *id)
{
GtkConstraintStrength strength;
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_STRENGTH);
GEnumValue *value = g_enum_get_value_by_nick (class, id);
strength = value->value;
g_type_class_unref (class);
return strength;
}
#endif
const char *
get_strength_nick (GtkConstraintStrength strength)
{
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_STRENGTH);
GEnumValue *value = g_enum_get_value (class, strength);
const char *nick = value->value_nick;
g_type_class_unref (class);
return nick;
}
static void
create_guide (GtkButton *button,
GuideEditor *editor)
{
#if 0
const char *id;
int strength;
#endif
const char *name;
int w, h;
GtkConstraintGuide *guide;
//guide = gtk_constraint_guide_new ();
if (editor->guide)
guide = g_object_ref (editor->guide);
else
guide = g_object_new (GTK_TYPE_CONSTRAINT_GUIDE, NULL);
name = gtk_editable_get_text (GTK_EDITABLE (editor->name));
g_object_set_data_full (G_OBJECT (guide), "name", g_strdup (name), g_free);
w = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->min_width));
h = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->min_height));
//gtk_constraint_guide_set_min_size (guide, w, h);
g_object_set (guide, "min-width", w, "min-height", h, NULL);
w = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->nat_width));
h = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->nat_height));
//gtk_constraint_guide_set_nat_size (guide, w, h);
g_object_set (guide, "nat-width", w, "nat-height", h, NULL);
#if 0
w = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->max_width));
h = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->max_height));
gtk_constraint_guide_set_max_size (guide, w, h);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->strength));
strength = get_strength (id);
gtk_constraint_guide_set_strength (guide, strength);
#endif
g_signal_emit (editor, signals[DONE], 0, guide);
g_object_unref (guide);
}
static void
guide_editor_init (GuideEditor *editor)
{
gtk_widget_init_template (GTK_WIDGET (editor));
}
static int guide_counter;
static void
guide_editor_constructed (GObject *object)
{
GuideEditor *editor = GUIDE_EDITOR (object);
guide_strength_combo (editor->strength);
gtk_widget_set_sensitive (editor->max_width, FALSE);
gtk_widget_set_sensitive (editor->max_height, FALSE);
gtk_widget_set_sensitive (editor->strength, FALSE);
if (editor->guide)
{
#if 0
GtkConstaintStrength strength;
#endif
const char *nick;
int w, h;
nick = (char *)g_object_get_data (G_OBJECT (editor->guide), "name");
gtk_editable_set_text (GTK_EDITABLE (editor->name), nick);
//gtk_constaint_guide_get_min_size (editor->guide, &w, &h);
g_object_get (editor->guide, "min-width", &w, "min-height", &h, NULL);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->min_width), w);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->min_height), h);
//gtk_constaint_guide_get_nat_size (editor->guide, &w, &h);
g_object_get (editor->guide, "nat-width", &w, "nat-height", &h, NULL);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->nat_width), w);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->nat_height), h);
#if 0
gtk_constaint_guide_get_max_size (editor->guide, &w, &h);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->max_width), w);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->max_height), h);
strength = gtk_guide_get_strength (editor->guide);
nick = get_strength_nick (strength);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->strength), nick);
#endif
gtk_button_set_label (GTK_BUTTON (editor->button), "Apply");
}
else
{
char *name;
guide_counter++;
name = g_strdup_printf ("Guide %d", guide_counter);
gtk_editable_set_text (GTK_EDITABLE (editor->name), name);
g_free (name);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->min_width), 0.0);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->min_height), 0.0);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->nat_width), 0.0);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->nat_height), 0.0);
#if 0
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->max_width), G_MAXINT);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->max_height), G_MAXINT);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->strength), "medium");
#endif
gtk_button_set_label (GTK_BUTTON (editor->button), "Create");
}
editor->constructed = TRUE;
}
static void
guide_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GuideEditor *self = GUIDE_EDITOR (object);
switch (property_id)
{
case PROP_GUIDE:
self->guide = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
guide_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GuideEditor *self = GUIDE_EDITOR (object);
switch (property_id)
{
case PROP_GUIDE:
g_value_set_object (value, self->guide);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
guide_editor_dispose (GObject *object)
{
GuideEditor *self = (GuideEditor *)object;
g_clear_pointer (&self->grid, gtk_widget_unparent);
g_clear_object (&self->guide);
G_OBJECT_CLASS (guide_editor_parent_class)->dispose (object);
}
static void
guide_editor_class_init (GuideEditorClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->constructed = guide_editor_constructed;
object_class->dispose = guide_editor_dispose;
object_class->set_property = guide_editor_set_property;
object_class->get_property = guide_editor_get_property;
pspecs[PROP_GUIDE] =
g_param_spec_object ("guide", "guide", "guide",
GTK_TYPE_CONSTRAINT_GUIDE,
G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, LAST_PROP, pspecs);
signals[DONE] =
g_signal_new ("done",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
NULL,
G_TYPE_NONE, 1, GTK_TYPE_CONSTRAINT_GUIDE);
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/gtk4/constraint-editor/guide-editor.ui");
gtk_widget_class_bind_template_child (widget_class, GuideEditor, grid);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, name);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, min_width);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, min_height);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, nat_width);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, nat_height);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, max_width);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, max_height);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, strength);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, button);
gtk_widget_class_bind_template_callback (widget_class, create_guide);
}
GuideEditor *
guide_editor_new (GtkConstraintGuide *guide)
{
return g_object_new (GUIDE_EDITOR_TYPE,
"guide", guide,
NULL);
}

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/*
* 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/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define GUIDE_EDITOR_TYPE (guide_editor_get_type ())
G_DECLARE_FINAL_TYPE (GuideEditor, guide_editor, GUIDE, EDITOR, GtkWidget)
GuideEditor * guide_editor_new (GtkConstraintGuide *guide);

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<?xml version="1.0" encoding="UTF-8"?>
<interface>
<object class="GtkAdjustment" id="min_width_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="min_height_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="nat_width_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="nat_height_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="max_width_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="max_height_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<template class="GuideEditor" parent="GtkWidget">
<child>
<object class="GtkGrid" id="grid">
<property name="margin">20</property>
<property name="row-spacing">10</property>
<property name="column-spacing">10</property>
<child>
<object class="GtkLabel">
<property name="label">Name</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">0</property>
</layout>
</object>
</child>
<child>
<object class="GtkEntry" id="name">
<property name="max-width-chars">20</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">0</property>
<property name="column-span">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Min Size</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="min_width">
<property name="adjustment">min_width_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="min_height">
<property name="adjustment">min_height_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Nat Size</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="nat_width">
<property name="adjustment">nat_width_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="nat_height">
<property name="adjustment">nat_height_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Max Size</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="max_width">
<property name="adjustment">max_width_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="max_height">
<property name="adjustment">max_height_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Strength</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">4</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="strength">
<layout>
<property name="left-attach">1</property>
<property name="top-attach">4</property>
<property name="column-span">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkButton" id="button">
<property name="label">Create</property>
<signal name="clicked" handler="create_guide"/>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">5</property>
</layout>
</object>
</child>
</object>
</child>
</template>
</interface>

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@ -0,0 +1,28 @@
/*
* 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/>.
*
* Authors: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include <constraint-editor-application.h>
int
main (int argc, char *argv[])
{
return g_application_run (G_APPLICATION (constraint_editor_application_new ()), argc, argv);
}

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@ -0,0 +1,19 @@
constraint_editor_sources = [
'main.c',
'constraint-editor-application.c',
'constraint-editor-window.c',
'constraint-view.c',
'constraint-editor.c',
'guide-editor.c',
]
constraint_editor_resources = gnome.compile_resources('constraint_editor_resources',
'constraint-editor.gresource.xml',
source_dir: '.')
executable('gtk4-constraint-editor',
constraint_editor_sources, constraint_editor_resources,
dependencies: libgtk_dep,
include_directories: confinc,
gui_app: true,
install: false)

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@ -1,3 +1,4 @@
subdir('constraint-editor')
subdir('gtk-demo')
subdir('icon-browser')
subdir('node-editor')