gtk2/demos/icon-browser/iconbrowserwin.c
Matthias Clasen 7733f646d6 gdk: Rename GdkDragContext to GdkDrag
This is to go along with the newly introduced GdkDrop.

This commit includes the necessary updates to the X11, Wayland
and Broadway backends. Other backends have to be updated separately.
2018-07-02 14:59:26 +02:00

547 lines
16 KiB
C

#include <string.h>
#include "iconbrowserapp.h"
#include "iconbrowserwin.h"
#include "iconstore.h"
#include <gtk/gtk.h>
/* Drag 'n Drop */
static const char *target_table[] = {
"text/uri-list"
};
typedef struct
{
gchar *id;
gchar *name;
gchar *description;
} Context;
static void
context_free (gpointer data)
{
Context *context = data;
g_free (context->id);
g_free (context->name);
g_free (context->description);
g_free (context);
}
struct _IconBrowserWindow
{
GtkApplicationWindow parent;
GHashTable *contexts;
GtkWidget *context_list;
Context *current_context;
gboolean symbolic;
GtkWidget *symbolic_radio;
GtkTreeModelFilter *filter_model;
GtkWidget *details;
GtkListStore *store;
GtkCellRenderer *cell;
GtkCellRenderer *text_cell;
GtkWidget *search;
GtkWidget *searchbar;
GtkWidget *searchentry;
GtkWidget *list;
GtkWidget *image1;
GtkWidget *image2;
GtkWidget *image3;
GtkWidget *image4;
GtkWidget *image5;
GtkWidget *image6;
GtkWidget *label6;
GtkWidget *description;
};
struct _IconBrowserWindowClass
{
GtkApplicationWindowClass parent_class;
};
G_DEFINE_TYPE(IconBrowserWindow, icon_browser_window, GTK_TYPE_APPLICATION_WINDOW);
static void
search_text_changed (GtkEntry *entry, IconBrowserWindow *win)
{
const gchar *text;
text = gtk_entry_get_text (entry);
if (text[0] == '\0')
return;
gtk_tree_model_filter_refilter (win->filter_model);
}
static GdkPixbuf *
get_icon (GtkWidget *image, const gchar *name, gint size)
{
GtkIconInfo *info;
GtkStyleContext *context;
GdkPixbuf *pixbuf;
context = gtk_widget_get_style_context (image);
info = gtk_icon_theme_lookup_icon (gtk_icon_theme_get_default (), name, size, 0);
pixbuf = gtk_icon_info_load_symbolic_for_context (info, context, NULL, NULL);
g_object_unref (info);
return pixbuf;
}
static void
set_image (GtkWidget *image, const gchar *name, gint size)
{
gtk_image_set_from_icon_name (GTK_IMAGE (image), name);
gtk_image_set_pixel_size (GTK_IMAGE (image), size);
gtk_drag_source_set_icon_name (image, name);
}
static void
item_activated (GtkIconView *icon_view, GtkTreePath *path, IconBrowserWindow *win)
{
GtkTreeIter iter;
gchar *name;
gchar *description;
gint column;
gtk_tree_model_get_iter (GTK_TREE_MODEL (win->filter_model), &iter, path);
if (win->symbolic)
column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
else
column = ICON_STORE_NAME_COLUMN;
gtk_tree_model_get (GTK_TREE_MODEL (win->filter_model), &iter,
column, &name,
ICON_STORE_DESCRIPTION_COLUMN, &description,
-1);
if (name == NULL || !gtk_icon_theme_has_icon (gtk_icon_theme_get_default (), name))
{
g_free (description);
return;
}
gtk_window_set_title (GTK_WINDOW (win->details), name);
set_image (win->image1, name, 16);
set_image (win->image2, name, 24);
set_image (win->image3, name, 32);
set_image (win->image4, name, 48);
set_image (win->image5, name, 64);
if (win->symbolic)
{
gtk_widget_show (win->image6);
gtk_widget_show (win->label6);
set_image (win->image6, name, 64);
}
else
{
gtk_widget_hide (win->image6);
gtk_widget_hide (win->label6);
}
if (description && description[0])
{
gtk_label_set_text (GTK_LABEL (win->description), description);
gtk_widget_show (win->description);
}
else
{
gtk_widget_hide (win->description);
}
gtk_window_present (GTK_WINDOW (win->details));
g_free (name);
g_free (description);
}
static void
add_icon (IconBrowserWindow *win,
const gchar *name,
const gchar *description,
const gchar *context)
{
gchar *regular_name;
gchar *symbolic_name;
regular_name = g_strdup (name);
if (!gtk_icon_theme_has_icon (gtk_icon_theme_get_default (), regular_name))
{
g_free (regular_name);
regular_name = NULL;
}
symbolic_name = g_strconcat (name, "-symbolic", NULL);
if (!gtk_icon_theme_has_icon (gtk_icon_theme_get_default (), symbolic_name))
{
g_free (symbolic_name);
symbolic_name = NULL;
}
gtk_list_store_insert_with_values (win->store, NULL, -1,
ICON_STORE_NAME_COLUMN, regular_name,
ICON_STORE_SYMBOLIC_NAME_COLUMN, symbolic_name,
ICON_STORE_DESCRIPTION_COLUMN, description,
ICON_STORE_CONTEXT_COLUMN, context,
-1);
}
static void
add_context (IconBrowserWindow *win,
const gchar *id,
const gchar *name,
const gchar *description)
{
Context *c;
GtkWidget *row;
c = g_new (Context, 1);
c->id = g_strdup (id);
c->name = g_strdup (name);
c->description = g_strdup (description);
g_hash_table_insert (win->contexts, c->id, c);
row = gtk_label_new (name);
g_object_set_data (G_OBJECT (row), "context", c);
gtk_widget_show (row);
g_object_set (row, "margin", 10, NULL);
gtk_list_box_insert (GTK_LIST_BOX (win->context_list), row, -1);
/* set the tooltip on the list box row */
row = gtk_widget_get_parent (row);
gtk_widget_set_tooltip_text (row, description);
if (win->current_context == NULL)
win->current_context = c;
}
static void
selected_context_changed (GtkListBox *list, IconBrowserWindow *win)
{
GtkWidget *row;
GtkWidget *label;
row = GTK_WIDGET (gtk_list_box_get_selected_row (list));
if (row == NULL)
return;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (win->search), FALSE);
label = gtk_bin_get_child (GTK_BIN (row));
win->current_context = g_object_get_data (G_OBJECT (label), "context");
gtk_tree_model_filter_refilter (win->filter_model);
}
static void
populate (IconBrowserWindow *win)
{
GFile *file;
GKeyFile *kf;
char *data;
gsize length;
char **groups;
int i;
file = g_file_new_for_uri ("resource:/org/gtk/iconbrowser/gtk/icon.list");
g_file_load_contents (file, NULL, &data, &length, NULL, NULL);
kf = g_key_file_new ();
g_key_file_load_from_data (kf, data, length, G_KEY_FILE_NONE, NULL);
groups = g_key_file_get_groups (kf, &length);
for (i = 0; i < length; i++)
{
const char *context;
const char *name;
const char *description;
char **keys;
gsize len;
int j;
context = groups[i];
name = g_key_file_get_string (kf, context, "Name", NULL);
description = g_key_file_get_string (kf, context, "Description", NULL);
add_context (win, context, name, description);
keys = g_key_file_get_keys (kf, context, &len, NULL);
for (j = 0; j < len; j++)
{
const char *key = keys[j];
const char *value;
if (strcmp (key, "Name") == 0 || strcmp (key, "Description") == 0)
continue;
value = g_key_file_get_string (kf, context, key, NULL);
add_icon (win, key, value, context);
}
g_strfreev (keys);
}
g_strfreev (groups);
}
static gboolean
key_event_cb (GtkEventController *controller,
guint keyval,
guint keycode,
GdkModifierType state,
gpointer data)
{
IconBrowserWindow *win = data;
return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar),
gtk_get_current_event ());
}
static void
copy_to_clipboard (GtkButton *button,
IconBrowserWindow *win)
{
GdkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (win));
gdk_clipboard_set_text (clipboard, gtk_window_get_title (GTK_WINDOW (win->details)));
}
static gboolean
icon_visible_func (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
IconBrowserWindow *win = data;
gchar *context;
gchar *name;
gint column;
gboolean search;
const gchar *search_text;
gboolean visible;
search = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (win->search));
search_text = gtk_entry_get_text (GTK_ENTRY (win->searchentry));
if (win->symbolic)
column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
else
column = ICON_STORE_NAME_COLUMN;
gtk_tree_model_get (model, iter,
column, &name,
ICON_STORE_CONTEXT_COLUMN, &context,
-1);
if (!name)
visible = FALSE;
else if (search)
visible = strstr (name, search_text) != NULL;
else
visible = win->current_context != NULL && g_strcmp0 (context, win->current_context->id) == 0;
g_free (name);
g_free (context);
return visible;
}
static void
symbolic_toggled (GtkToggleButton *toggle, IconBrowserWindow *win)
{
gint column;
win->symbolic = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (toggle));
if (win->symbolic)
column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
else
column = ICON_STORE_NAME_COLUMN;
icon_store_set_text_column (ICON_STORE (win->store), column);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (win->list), win->cell, "icon-name", column, NULL);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (win->list), win->text_cell, "text", column, NULL);
gtk_tree_model_filter_refilter (win->filter_model);
gtk_widget_queue_draw (win->list);
}
static void
search_mode_toggled (GObject *searchbar, GParamSpec *pspec, IconBrowserWindow *win)
{
if (gtk_search_bar_get_search_mode (GTK_SEARCH_BAR (searchbar)))
gtk_list_box_unselect_all (GTK_LIST_BOX (win->context_list));
}
static void
get_image_data (GtkWidget *widget,
GdkDrag *drag,
GtkSelectionData *selection,
guint target_info,
gpointer data)
{
GtkWidget *image;
const gchar *name;
gint size;
GdkPixbuf *pixbuf;
image = gtk_bin_get_child (GTK_BIN (widget));
name = gtk_image_get_icon_name (GTK_IMAGE (image));
size = gtk_image_get_pixel_size (GTK_IMAGE (image));
pixbuf = get_icon (image, name, size);
gtk_selection_data_set_pixbuf (selection, pixbuf);
g_object_unref (pixbuf);
}
static void
get_scalable_image_data (GtkWidget *widget,
GdkDrag *drag,
GtkSelectionData *selection,
guint target_info,
gpointer data)
{
gchar *uris[2];
GtkIconInfo *info;
GtkWidget *image;
GFile *file;
const gchar *name;
image = gtk_bin_get_child (GTK_BIN (widget));
name = gtk_image_get_icon_name (GTK_IMAGE (image));
info = gtk_icon_theme_lookup_icon (gtk_icon_theme_get_default (), name, -1, 0);
file = g_file_new_for_path (gtk_icon_info_get_filename (info));
uris[0] = g_file_get_uri (file);
uris[1] = NULL;
gtk_selection_data_set_uris (selection, uris);
g_free (uris[0]);
g_object_unref (info);
g_object_unref (file);
}
static void
setup_image_dnd (GtkWidget *image)
{
gtk_drag_source_set (image, GDK_BUTTON1_MASK, NULL, GDK_ACTION_COPY);
gtk_drag_source_add_image_targets (image);
g_signal_connect (image, "drag-data-get", G_CALLBACK (get_image_data), NULL);
}
static void
setup_scalable_image_dnd (GtkWidget *image)
{
GtkWidget *parent;
GdkContentFormats *targets;
parent = gtk_widget_get_parent (image);
targets = gdk_content_formats_new (target_table, G_N_ELEMENTS (target_table));
gtk_drag_source_set (parent, GDK_BUTTON1_MASK,
targets,
GDK_ACTION_COPY);
gdk_content_formats_unref (targets);
g_signal_connect (parent, "drag-data-get", G_CALLBACK (get_scalable_image_data), NULL);
}
static void
icon_browser_window_init (IconBrowserWindow *win)
{
GdkContentFormats *list;
GtkEventController *controller;
gtk_widget_init_template (GTK_WIDGET (win));
list = gdk_content_formats_new (NULL, 0);
list = gtk_content_formats_add_text_targets (list);
gtk_icon_view_enable_model_drag_source (GTK_ICON_VIEW (win->list),
GDK_BUTTON1_MASK,
list,
GDK_ACTION_COPY);
gdk_content_formats_unref (list);
setup_image_dnd (win->image1);
setup_image_dnd (win->image2);
setup_image_dnd (win->image3);
setup_image_dnd (win->image4);
setup_image_dnd (win->image5);
setup_image_dnd (win->image6);
setup_scalable_image_dnd (win->image6);
win->contexts = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, context_free);
gtk_tree_model_filter_set_visible_func (win->filter_model, icon_visible_func, win, NULL);
gtk_window_set_transient_for (GTK_WINDOW (win->details), GTK_WINDOW (win));
g_signal_connect (win->searchbar, "notify::search-mode-enabled",
G_CALLBACK (search_mode_toggled), win);
symbolic_toggled (GTK_TOGGLE_BUTTON (win->symbolic_radio), win);
controller = gtk_event_controller_key_new ();
g_signal_connect (controller, "key-pressed", G_CALLBACK (key_event_cb), win);
gtk_widget_add_controller (GTK_WIDGET (win), controller);
populate (win);
}
static void
icon_browser_window_finalize (GObject *object)
{
IconBrowserWindow *win = ICON_BROWSER_WINDOW (object);
g_hash_table_unref (win->contexts);
G_OBJECT_CLASS (icon_browser_window_parent_class)->finalize (object);
}
static void
icon_browser_window_class_init (IconBrowserWindowClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = icon_browser_window_finalize;
g_type_ensure (ICON_STORE_TYPE);
gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
"/org/gtk/iconbrowser/gtk/window.ui");
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, context_list);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, filter_model);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, symbolic_radio);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, details);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, store);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, cell);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, text_cell);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, search);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, searchbar);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, searchentry);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, list);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image1);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image2);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image3);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image4);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image5);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image6);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, label6);
gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, description);
gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), search_text_changed);
gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), item_activated);
gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), selected_context_changed);
gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), symbolic_toggled);
gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), copy_to_clipboard);
}
IconBrowserWindow *
icon_browser_window_new (IconBrowserApp *app)
{
return g_object_new (ICON_BROWSER_WINDOW_TYPE, "application", app, NULL);
}