gtk2/gtk/inspector/size-groups.c
Benjamin Otte de990614d7 inspector: Introduce so-called "overlays"
Overlays are drawings that get rendered on top of the inspected window.

The only overlay in existence so far is the highlight overlay, which is
used to highlight widgets and replaces the "draw" signal handler used
previously.
2018-04-05 14:57:10 +02:00

306 lines
8.5 KiB
C

/*
* Copyright (c) 2014 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 "config.h"
#include <glib/gi18n-lib.h>
#include "size-groups.h"
#include "highlightoverlay.h"
#include "window.h"
#include "gtkcomboboxtext.h"
#include "gtkframe.h"
#include "gtklabel.h"
#include "gtklistbox.h"
#include "gtksizegroup.h"
#include "gtkswitch.h"
#include "gtkwidgetprivate.h"
typedef struct {
GtkListBoxRow parent;
GtkInspectorOverlay *highlight;
GtkWidget *widget;
} SizeGroupRow;
typedef struct {
GtkListBoxRowClass parent;
} SizeGroupRowClass;
enum {
PROP_WIDGET = 1,
LAST_PROPERTY
};
GParamSpec *properties[LAST_PROPERTY] = { NULL };
GType size_group_row_get_type (void);
G_DEFINE_TYPE (SizeGroupRow, size_group_row, GTK_TYPE_LIST_BOX_ROW)
static void
size_group_row_init (SizeGroupRow *row)
{
}
static void
size_group_row_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
SizeGroupRow *row = (SizeGroupRow*)object;
switch (property_id)
{
case PROP_WIDGET:
g_value_set_pointer (value, row->widget);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
size_group_row_widget_destroyed (GtkWidget *widget, SizeGroupRow *row)
{
GtkWidget *parent;
parent = gtk_widget_get_parent (GTK_WIDGET (row));
if (parent)
gtk_container_remove (GTK_CONTAINER (parent), GTK_WIDGET (row));
}
static void
set_widget (SizeGroupRow *row, GtkWidget *widget)
{
if (row->widget)
g_signal_handlers_disconnect_by_func (row->widget,
size_group_row_widget_destroyed, row);
row->widget = widget;
if (row->widget)
g_signal_connect (row->widget, "destroy",
G_CALLBACK (size_group_row_widget_destroyed), row);
}
static void
size_group_row_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
SizeGroupRow *row = (SizeGroupRow*)object;
switch (property_id)
{
case PROP_WIDGET:
set_widget (row, g_value_get_pointer (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
size_group_row_finalize (GObject *object)
{
SizeGroupRow *row = (SizeGroupRow *)object;
set_widget (row, NULL);
G_OBJECT_CLASS (size_group_row_parent_class)->finalize (object);
}
static void
size_group_state_flags_changed (GtkWidget *widget,
GtkStateFlags old_state)
{
SizeGroupRow *row = (SizeGroupRow*)widget;
GtkStateFlags state;
if (!row->widget)
return;
state = gtk_widget_get_state_flags (widget);
if ((state & GTK_STATE_FLAG_PRELIGHT) != (old_state & GTK_STATE_FLAG_PRELIGHT))
{
GtkInspectorWindow *iw = GTK_INSPECTOR_WINDOW (gtk_widget_get_toplevel (widget));
if (state & GTK_STATE_FLAG_PRELIGHT)
{
row->highlight = gtk_highlight_overlay_new (row->widget);
gtk_inspector_window_add_overlay (iw, row->highlight);
}
else
{
gtk_inspector_window_remove_overlay (iw, row->highlight);
g_clear_object (&row->highlight);
}
}
}
static void
size_group_row_class_init (SizeGroupRowClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->finalize = size_group_row_finalize;
object_class->get_property = size_group_row_get_property;
object_class->set_property = size_group_row_set_property;
widget_class->state_flags_changed = size_group_state_flags_changed;
properties[PROP_WIDGET] =
g_param_spec_pointer ("widget", "Widget", "Widget", G_PARAM_READWRITE);
g_object_class_install_properties (object_class, LAST_PROPERTY, properties);
}
G_DEFINE_TYPE (GtkInspectorSizeGroups, gtk_inspector_size_groups, GTK_TYPE_BOX)
static void
clear_view (GtkInspectorSizeGroups *sl)
{
GList *children, *l;
GtkWidget *child;
children = gtk_container_get_children (GTK_CONTAINER (sl));
for (l = children; l; l = l->next)
{
child = l->data;
gtk_container_remove (GTK_CONTAINER (sl), child);
}
g_list_free (children);
}
static void
add_widget (GtkInspectorSizeGroups *sl,
GtkListBox *listbox,
GtkWidget *widget)
{
GtkWidget *row;
GtkWidget *label;
gchar *text;
row = g_object_new (size_group_row_get_type (), "widget", widget, NULL);
text = g_strdup_printf ("%p (%s)", widget, g_type_name_from_instance ((GTypeInstance*)widget));
label = gtk_label_new (text);
g_free (text);
g_object_set (label, "margin", 10, NULL);
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_BASELINE);
gtk_widget_show (label);
gtk_container_add (GTK_CONTAINER (row), label);
gtk_container_add (GTK_CONTAINER (listbox), row);
}
static void
add_size_group (GtkInspectorSizeGroups *sl,
GtkSizeGroup *group)
{
GtkWidget *frame, *box, *box2;
GtkWidget *label, *combo;
GSList *widgets, *l;
GtkWidget *listbox;
frame = gtk_frame_new (NULL);
gtk_container_add (GTK_CONTAINER (sl), frame);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_style_context_add_class (gtk_widget_get_style_context (box), GTK_STYLE_CLASS_VIEW);
gtk_container_add (GTK_CONTAINER (frame), box);
box2 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
gtk_container_add (GTK_CONTAINER (box), box2);
label = gtk_label_new (_("Mode"));
g_object_set (label, "margin", 10, NULL);
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_BASELINE);
gtk_box_pack_start (GTK_BOX (box2), label);
combo = gtk_combo_box_text_new ();
g_object_set (combo, "margin", 10, NULL);
gtk_widget_set_halign (combo, GTK_ALIGN_END);
gtk_widget_set_valign (combo, GTK_ALIGN_BASELINE);
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), C_("sizegroup mode", "None"));
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), C_("sizegroup mode", "Horizontal"));
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), C_("sizegroup mode", "Vertical"));
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), C_("sizegroup mode", "Both"));
g_object_bind_property (group, "mode",
combo, "active",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
gtk_box_pack_start (GTK_BOX (box2), combo);
listbox = gtk_list_box_new ();
gtk_container_add (GTK_CONTAINER (box), listbox);
gtk_list_box_set_selection_mode (GTK_LIST_BOX (listbox), GTK_SELECTION_NONE);
widgets = gtk_size_group_get_widgets (group);
for (l = widgets; l; l = l->next)
add_widget (sl, GTK_LIST_BOX (listbox), GTK_WIDGET (l->data));
}
void
gtk_inspector_size_groups_set_object (GtkInspectorSizeGroups *sl,
GObject *object)
{
GSList *groups, *l;
clear_view (sl);
if (!GTK_IS_WIDGET (object))
{
gtk_widget_hide (GTK_WIDGET (sl));
return;
}
groups = _gtk_widget_get_sizegroups (GTK_WIDGET (object));
if (groups)
gtk_widget_show (GTK_WIDGET (sl));
for (l = groups; l; l = l->next)
{
GtkSizeGroup *group = l->data;
add_size_group (sl, group);
}
}
static void
gtk_inspector_size_groups_init (GtkInspectorSizeGroups *sl)
{
g_object_set (sl,
"orientation", GTK_ORIENTATION_VERTICAL,
"margin-start", 60,
"margin-end", 60,
"margin-bottom", 60,
"margin-bottom", 30,
"spacing", 10,
NULL);
}
static void
gtk_inspector_size_groups_class_init (GtkInspectorSizeGroupsClass *klass)
{
}
// vim: set et sw=2 ts=2: