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icon browser: Add some dnd support

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Use a custom tree model and enable dragging from the icon view.
Currently, we just support dropping the icon name as text.
This commit is contained in:
Matthias Clasen 2015-02-22 12:30:49 -05:00
parent 967ba60303
commit ae63b21c61
5 changed files with 152 additions and 26 deletions
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1
demos/icon-browser/Makefile.am
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@ -20,6 +20,7 @@ gtk3_icon_browser_SOURCES = \
main.c \
iconbrowserapp.c iconbrowserapp.h \
iconbrowserwin.c iconbrowserwin.h \
iconstore.c iconstore.h \
resources.c
BUILT_SOURCES = \

52
demos/icon-browser/iconbrowserwin.c
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@ -1,6 +1,7 @@
#include <string.h>
#include "iconbrowserapp.h"
#include "iconbrowserwin.h"
#include "iconstore.h"
#include <gtk/gtk.h>
typedef struct
@ -42,13 +43,6 @@ struct _IconBrowserWindowClass
GtkApplicationWindowClass parent_class;
};
enum {
NAME_COLUMN,
SYMBOLIC_NAME_COLUMN,
DESCRIPTION_COLUMN,
CONTEXT_COLUMN
};
G_DEFINE_TYPE(IconBrowserWindow, icon_browser_window, GTK_TYPE_APPLICATION_WINDOW);
static void
@ -82,12 +76,12 @@ item_activated (GtkIconView *icon_view, GtkTreePath *path, IconBrowserWindow *wi
gtk_tree_model_get_iter (GTK_TREE_MODEL (win->filter_model), &iter, path);
if (win->symbolic)
column = SYMBOLIC_NAME_COLUMN;
column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
else
column = NAME_COLUMN;
column = ICON_STORE_NAME_COLUMN;
gtk_tree_model_get (GTK_TREE_MODEL (win->filter_model), &iter,
column, &name,
DESCRIPTION_COLUMN, &description,
ICON_STORE_DESCRIPTION_COLUMN, &description,
-1);
if (name == NULL || !gtk_icon_theme_has_icon (gtk_icon_theme_get_default (), name))
@ -141,10 +135,10 @@ add_icon (IconBrowserWindow *win,
symbolic_name = NULL;
}
gtk_list_store_insert_with_values (win->store, NULL, -1,
NAME_COLUMN, regular_name,
SYMBOLIC_NAME_COLUMN, symbolic_name,
DESCRIPTION_COLUMN, description,
CONTEXT_COLUMN, context,
ICON_STORE_NAME_COLUMN, regular_name,
ICON_STORE_SYMBOLIC_NAME_COLUMN, symbolic_name,
ICON_STORE_DESCRIPTION_COLUMN, description,
ICON_STORE_CONTEXT_COLUMN, context,
-1);
}
@ -697,13 +691,13 @@ icon_visible_func (GtkTreeModel *model,
search_text = gtk_entry_get_text (GTK_ENTRY (win->searchentry));
if (win->symbolic)
column = SYMBOLIC_NAME_COLUMN;
column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
else
column = NAME_COLUMN;
column = ICON_STORE_NAME_COLUMN;
gtk_tree_model_get (model, iter,
column, &name,
CONTEXT_COLUMN, &context,
ICON_STORE_CONTEXT_COLUMN, &context,
-1);
if (!name)
visible = FALSE;
@ -726,9 +720,11 @@ symbolic_toggled (GtkToggleButton *toggle, IconBrowserWindow *win)
win->symbolic = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (toggle));
if (win->symbolic)
column = SYMBOLIC_NAME_COLUMN;
column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
else
column = NAME_COLUMN;
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);
@ -747,8 +743,24 @@ search_mode_toggled (GObject *searchbar, GParamSpec *pspec, IconBrowserWindow *w
static void
icon_browser_window_init (IconBrowserWindow *win)
{
GtkTargetList *list;
GtkTargetEntry *targets;
gint n_targets;
gtk_widget_init_template (GTK_WIDGET (win));
list = gtk_target_list_new (NULL, 0);
gtk_target_list_add_text_targets (list, 0);
targets = gtk_target_table_new_from_list (list, &n_targets);
gtk_target_list_unref (list);
gtk_icon_view_enable_model_drag_source (GTK_ICON_VIEW (win->list),
GDK_BUTTON1_MASK,
targets, n_targets,
GDK_ACTION_COPY);
gtk_target_table_free (targets, n_targets);
win->contexts = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_free);
gtk_tree_model_filter_set_visible_func (win->filter_model, icon_visible_func, win, NULL);
@ -765,6 +777,8 @@ icon_browser_window_init (IconBrowserWindow *win)
static void
icon_browser_window_class_init (IconBrowserWindowClass *class)
{
g_type_ensure (ICON_STORE_TYPE);
gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
"/org/gtk/iconbrowser/window.ui");

91
demos/icon-browser/iconstore.c Normal file
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@ -0,0 +1,91 @@
#include "iconstore.h"
#include <gtk/gtk.h>
struct _IconStore
{
GtkListStore parent;
gint text_column;
};
struct _IconStoreClass
{
GtkListStoreClass parent_class;
};
static void icon_store_drag_source_init (GtkTreeDragSourceIface *iface);
G_DEFINE_TYPE_WITH_CODE (IconStore, icon_store, GTK_TYPE_LIST_STORE,
G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_DRAG_SOURCE,
icon_store_drag_source_init))
static void
icon_store_init (IconStore *store)
{
GType types[4] = { G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING };
gtk_list_store_set_column_types (GTK_LIST_STORE (store), 4, types);
store->text_column = ICON_STORE_NAME_COLUMN;
}
static void
icon_store_class_init (IconStoreClass *class)
{
}
static gboolean
row_draggable (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
return TRUE;
}
static gboolean
drag_data_delete (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
GtkTreeIter iter;
if (gtk_tree_model_get_iter (GTK_TREE_MODEL (drag_source), &iter, path))
return gtk_list_store_remove (GTK_LIST_STORE (drag_source), &iter);
return FALSE;
}
static gboolean
drag_data_get (GtkTreeDragSource *drag_source,
GtkTreePath *path,
GtkSelectionData *selection)
{
GtkTreeIter iter;
gchar *text;
if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (drag_source), &iter, path))
return FALSE;
gtk_tree_model_get (GTK_TREE_MODEL (drag_source), &iter,
ICON_STORE (drag_source)->text_column, &text,
-1);
gtk_selection_data_set_text (selection, text, -1);
g_free (text);
return TRUE;
}
static void
icon_store_drag_source_init (GtkTreeDragSourceIface *iface)
{
iface->row_draggable = row_draggable;
iface->drag_data_delete = drag_data_delete;
iface->drag_data_get = drag_data_get;
}
void
icon_store_set_text_column (IconStore *store, gint text_column)
{
store->text_column = text_column;
}

26
demos/icon-browser/iconstore.h Normal file
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@ -0,0 +1,26 @@
#ifndef __ICON_STORE_H
#define __ICON_STORE_H
#include <gtk/gtk.h>
#define ICON_STORE_TYPE (icon_store_get_type ())
#define ICON_STORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), ICON_STORE_TYPE, IconStore))
typedef struct _IconStore IconStore;
typedef struct _IconStoreClass IconStoreClass;
enum {
ICON_STORE_NAME_COLUMN,
ICON_STORE_SYMBOLIC_NAME_COLUMN,
ICON_STORE_DESCRIPTION_COLUMN,
ICON_STORE_CONTEXT_COLUMN
};
GType icon_store_get_type (void);
void icon_store_set_text_column (IconStore *store,
gint column);
#endif /* __ICON_STORE_H */

8
demos/icon-browser/window.ui
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@ -1,13 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<!-- interface-requires gtk+ 3.8 -->
<object class="GtkListStore" id="store">
<columns>
<column type="gchararray"/>
<column type="gchararray"/>
<column type="gchararray"/>
<column type="gchararray"/>
</columns>
<object class="IconStore" id="store">
</object>
<object class="GtkTreeModelFilter" id="filter_model">
<property name="child_model">store</property>