mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-23 12:56:51 +03:00
44a1b32eeb
* gdesktop.c: Moved the old DnD cruft to olddnd.c to keep it there for reference purposes. * gmetadata.c: Removed the gmeta_get_icon_for_file() function, as it is obsoleted by gicon_get_icon_for_file(). * gdesktop.c (desktop_icon_info_new): Made it use gicon_get_icon_for_file(). * gdesktop-icon.c (set_icon): Now we handle things internally using an imlib image, not a filename. (desktop_icon_new): Now takes an imlib image for the icon instead of a filename. (desktop_icon_set_icon): Likewise.
433 lines
11 KiB
C
433 lines
11 KiB
C
/* Desktop icon widget for the Midnight Commander
|
|
*
|
|
* Copyright (C) 1998 The Free Software Foundation
|
|
*
|
|
* Author: Federico Mena <federico@nuclecu.unam.mx>
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <gnome.h>
|
|
#include "gdesktop-icon.h"
|
|
#include "gdesktop.h"
|
|
|
|
|
|
/* Spacing between icon and text */
|
|
#define SPACING 2
|
|
|
|
|
|
/* The 50% gray stipple for selected icons */
|
|
#define gray50_width 2
|
|
#define gray50_height 2
|
|
static char gray50_bits[] = {
|
|
0x02, 0x01, };
|
|
|
|
|
|
static void desktop_icon_class_init (DesktopIconClass *class);
|
|
static void desktop_icon_init (DesktopIcon *dicon);
|
|
static void desktop_icon_realize (GtkWidget *widget);
|
|
|
|
|
|
static GtkWindowClass *parent_class;
|
|
|
|
|
|
/**
|
|
* desktop_icon_get_type
|
|
*
|
|
* Returns the Gtk type assigned to the DesktopIcon class.
|
|
*/
|
|
GtkType
|
|
desktop_icon_get_type (void)
|
|
{
|
|
static GtkType desktop_icon_type = 0;
|
|
|
|
if (!desktop_icon_type) {
|
|
GtkTypeInfo desktop_icon_info = {
|
|
"DesktopIcon",
|
|
sizeof (DesktopIcon),
|
|
sizeof (DesktopIconClass),
|
|
(GtkClassInitFunc) desktop_icon_class_init,
|
|
(GtkObjectInitFunc) desktop_icon_init,
|
|
NULL, /* reserved_1 */
|
|
NULL, /* reserved_2 */
|
|
(GtkClassInitFunc) NULL
|
|
};
|
|
|
|
desktop_icon_type = gtk_type_unique (gtk_window_get_type (), &desktop_icon_info);
|
|
}
|
|
|
|
return desktop_icon_type;
|
|
}
|
|
|
|
static void
|
|
desktop_icon_class_init (DesktopIconClass *class)
|
|
{
|
|
GtkObjectClass *object_class;
|
|
GtkWidgetClass *widget_class;
|
|
|
|
object_class = (GtkObjectClass *) class;
|
|
widget_class = (GtkWidgetClass *) class;
|
|
|
|
parent_class = gtk_type_class (gtk_window_get_type ());
|
|
|
|
widget_class->realize = desktop_icon_realize;
|
|
}
|
|
|
|
/* Callback used when the size of the icon text item changes */
|
|
static void
|
|
size_changed (GnomeIconTextItem *text, gpointer data)
|
|
{
|
|
DesktopIcon *dicon;
|
|
|
|
dicon = DESKTOP_ICON (data);
|
|
|
|
desktop_icon_reshape (dicon);
|
|
}
|
|
|
|
/* Callback used when the desktop icon's canvas is size_allocated. We reset the canvas scrolling
|
|
* region here, instead of doing it when the window shape changes, to avoid flicker.
|
|
*/
|
|
static void
|
|
canvas_size_allocated (GtkWidget *widget, GtkAllocation *allocation, gpointer data)
|
|
{
|
|
gnome_canvas_set_scroll_region (GNOME_CANVAS (widget), 0, 0, allocation->width, allocation->height);
|
|
}
|
|
|
|
static void
|
|
desktop_icon_init (DesktopIcon *dicon)
|
|
{
|
|
GdkBitmap *stipple;
|
|
|
|
/* Set the window policy */
|
|
|
|
gtk_window_set_policy (GTK_WINDOW (dicon), TRUE, TRUE, TRUE);
|
|
|
|
/* Create the canvas */
|
|
|
|
gtk_widget_push_visual (gdk_imlib_get_visual ());
|
|
gtk_widget_push_colormap (gdk_imlib_get_colormap ());
|
|
|
|
dicon->canvas = gnome_canvas_new ();
|
|
gtk_signal_connect (GTK_OBJECT (dicon->canvas), "size_allocate",
|
|
(GtkSignalFunc) canvas_size_allocated,
|
|
NULL);
|
|
|
|
gtk_widget_pop_colormap ();
|
|
gtk_widget_pop_visual ();
|
|
|
|
gtk_container_add (GTK_CONTAINER (dicon), dicon->canvas);
|
|
gtk_widget_show (dicon->canvas);
|
|
|
|
/* Create the icon and the text items */
|
|
|
|
dicon->icon = gnome_canvas_item_new (gnome_canvas_root (GNOME_CANVAS (dicon->canvas)),
|
|
gnome_canvas_image_get_type (),
|
|
"anchor", GTK_ANCHOR_NW,
|
|
NULL);
|
|
|
|
dicon->text = gnome_canvas_item_new (gnome_canvas_root (GNOME_CANVAS (dicon->canvas)),
|
|
gnome_icon_text_item_get_type (),
|
|
NULL);
|
|
|
|
stipple = gdk_bitmap_create_from_data (NULL, gray50_bits, gray50_width, gray50_height);
|
|
dicon->stipple = gnome_canvas_item_new (gnome_canvas_root (GNOME_CANVAS (dicon->canvas)),
|
|
gnome_canvas_rect_get_type (),
|
|
"fill_stipple", stipple,
|
|
NULL);
|
|
gnome_canvas_item_hide (dicon->stipple);
|
|
gdk_bitmap_unref (stipple);
|
|
|
|
dicon->w_changed_id = gtk_signal_connect (GTK_OBJECT (dicon->text), "width_changed",
|
|
(GtkSignalFunc) size_changed,
|
|
dicon);
|
|
dicon->h_changed_id = gtk_signal_connect (GTK_OBJECT (dicon->text), "height_changed",
|
|
(GtkSignalFunc) size_changed,
|
|
dicon);
|
|
}
|
|
|
|
static void
|
|
desktop_icon_realize (GtkWidget *widget)
|
|
{
|
|
DesktopIcon *dicon;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (IS_DESKTOP_ICON (widget));
|
|
|
|
dicon = DESKTOP_ICON (widget);
|
|
|
|
if (GTK_WIDGET_CLASS (parent_class)->realize)
|
|
(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
|
|
|
|
/* Set the window decorations to none and hints to the appropriate combination */
|
|
|
|
gdk_window_set_decorations (widget->window, 0);
|
|
gdk_window_set_functions (widget->window, 0);
|
|
|
|
gnome_win_hints_init ();
|
|
|
|
if (gnome_win_hints_wm_exists ()) {
|
|
gnome_win_hints_set_layer (widget, WIN_LAYER_DESKTOP);
|
|
gnome_win_hints_set_state (widget, WIN_STATE_FIXED_POSITION | WIN_STATE_ARRANGE_IGNORE);
|
|
gnome_win_hints_set_hints (widget,
|
|
(WIN_HINTS_SKIP_FOCUS
|
|
| WIN_HINTS_SKIP_WINLIST
|
|
| WIN_HINTS_SKIP_TASKBAR));
|
|
}
|
|
|
|
/* Set the stipple color now that we have a style */
|
|
|
|
gnome_canvas_item_set (dicon->stipple,
|
|
"fill_color_gdk", &widget->style->bg[GTK_STATE_SELECTED],
|
|
NULL);
|
|
}
|
|
|
|
/* Sets the icon from the specified image. Does not re-create the window shape for the desktop
|
|
* icon.
|
|
*/
|
|
static void
|
|
set_icon (DesktopIcon *dicon, GdkImlibImage *im)
|
|
{
|
|
GdkImlibImage *old_im;
|
|
GtkArg arg;
|
|
|
|
/* Destroy the old image if it exists */
|
|
|
|
arg.name = "image";
|
|
gtk_object_getv (GTK_OBJECT (dicon->icon), 1, &arg);
|
|
|
|
old_im = GTK_VALUE_POINTER (arg);
|
|
|
|
gnome_canvas_item_set (dicon->icon,
|
|
"image", im,
|
|
"width", (double) im->rgb_width,
|
|
"height", (double) im->rgb_height,
|
|
NULL);
|
|
|
|
if (old_im)
|
|
gdk_imlib_destroy_image (old_im);
|
|
}
|
|
|
|
/* Sets the text in the desktop icon, but does not re-create its window shape. */
|
|
static void
|
|
set_text (DesktopIcon *dicon, char *text)
|
|
{
|
|
GtkArg arg;
|
|
int icon_height;
|
|
|
|
arg.name = "height";
|
|
gtk_object_getv (GTK_OBJECT (dicon->icon), 1, &arg);
|
|
icon_height = GTK_VALUE_DOUBLE (arg);
|
|
|
|
gtk_signal_handler_block (GTK_OBJECT (dicon->text), dicon->w_changed_id);
|
|
gtk_signal_handler_block (GTK_OBJECT (dicon->text), dicon->h_changed_id);
|
|
|
|
gnome_icon_text_item_configure (GNOME_ICON_TEXT_ITEM (dicon->text),
|
|
0, icon_height + SPACING,
|
|
DESKTOP_SNAP_X,
|
|
DESKTOP_ICON_FONT,
|
|
text,
|
|
TRUE);
|
|
|
|
gtk_signal_handler_unblock (GTK_OBJECT (dicon->text), dicon->w_changed_id);
|
|
gtk_signal_handler_unblock (GTK_OBJECT (dicon->text), dicon->h_changed_id);
|
|
}
|
|
|
|
/**
|
|
* desktop_icon_new
|
|
* @image: Imlib image with the icon.
|
|
* @text: Text to use for the icon.
|
|
*
|
|
* Creates a new desktop icon widget with the specified icon image and text. The icon has to be
|
|
* positioned at the desired place.
|
|
*
|
|
* Returns the newly-created desktop icon widget.
|
|
*/
|
|
GtkWidget *
|
|
desktop_icon_new (GdkImlibImage *image, char *text)
|
|
{
|
|
DesktopIcon *dicon;
|
|
|
|
g_return_val_if_fail (image != NULL, NULL);
|
|
g_return_val_if_fail (text != NULL, NULL);
|
|
|
|
dicon = gtk_type_new (desktop_icon_get_type ());
|
|
|
|
set_icon (dicon, image);
|
|
set_text (dicon, text);
|
|
desktop_icon_reshape (dicon);
|
|
|
|
return GTK_WIDGET (dicon);
|
|
}
|
|
|
|
/**
|
|
* desktop_icon_set_icon
|
|
* @dicon: The desktop icon to set the icon for
|
|
* @image: Imlib image with the icon.
|
|
*
|
|
* Sets a new icon for an existing desktop icon.
|
|
*/
|
|
void
|
|
desktop_icon_set_icon (DesktopIcon *dicon, GdkImlibImage *image)
|
|
{
|
|
g_return_if_fail (dicon != NULL);
|
|
g_return_if_fail (IS_DESKTOP_ICON (dicon));
|
|
g_return_if_fail (image != NULL);
|
|
|
|
set_icon (dicon, image);
|
|
desktop_icon_reshape (dicon);
|
|
}
|
|
|
|
/**
|
|
* desktop_icon_set_text
|
|
* @dicon: The desktop icon to set the text for
|
|
* @text: The new text to use for the icon's title
|
|
*
|
|
* Sets a new title for an existing desktop icon.
|
|
*/
|
|
void
|
|
desktop_icon_set_text (DesktopIcon *dicon, char *text)
|
|
{
|
|
g_return_if_fail (dicon != NULL);
|
|
g_return_if_fail (IS_DESKTOP_ICON (dicon));
|
|
g_return_if_fail (text != NULL);
|
|
|
|
set_text (dicon, text);
|
|
desktop_icon_reshape (dicon);
|
|
}
|
|
|
|
/* Computes and sets a new window shape for the desktop icon */
|
|
static void
|
|
create_window_shape (DesktopIcon *dicon, int icon_width, int icon_height, int text_width, int text_height)
|
|
{
|
|
GdkImlibImage *im;
|
|
GdkBitmap *mask;
|
|
GdkBitmap *im_mask;
|
|
GdkGC *mgc;
|
|
GdkColor c;
|
|
|
|
/* Create the initial mask and clear it */
|
|
|
|
mask = gdk_pixmap_new (GTK_WIDGET (dicon)->window, dicon->width, dicon->height, 1);
|
|
|
|
mgc = gdk_gc_new (mask);
|
|
c.pixel = 0;
|
|
gdk_gc_set_foreground (mgc, &c);
|
|
gdk_draw_rectangle (mask, mgc, TRUE, 0, 0, dicon->width, dicon->height);
|
|
|
|
c.pixel = 1;
|
|
gdk_gc_set_foreground (mgc, &c);
|
|
|
|
/* Paint the mask of the image */
|
|
|
|
im = GNOME_CANVAS_IMAGE (dicon->icon)->im;
|
|
gdk_imlib_render (im, icon_width, icon_height);
|
|
im_mask = gdk_imlib_move_mask (im);
|
|
|
|
if (im_mask && desktop_use_shaped_icons) {
|
|
gdk_draw_pixmap (mask,
|
|
mgc,
|
|
im_mask,
|
|
0, 0,
|
|
(dicon->width - icon_width) / 2, 0,
|
|
icon_width, icon_height);
|
|
gdk_imlib_free_bitmap (im_mask);
|
|
} else
|
|
gdk_draw_rectangle (mask, mgc, TRUE,
|
|
(dicon->width - icon_width) / 2, 0,
|
|
icon_width, icon_height);
|
|
|
|
/* Fill the area for the text */
|
|
|
|
gdk_draw_rectangle (mask, mgc, TRUE,
|
|
(dicon->width - text_width) / 2,
|
|
icon_height + SPACING,
|
|
text_width, text_height);
|
|
|
|
if (!GTK_WIDGET_REALIZED (dicon))
|
|
gtk_widget_realize (GTK_WIDGET (dicon));
|
|
|
|
gtk_widget_shape_combine_mask (GTK_WIDGET (dicon), mask, 0, 0);
|
|
gdk_bitmap_unref (mask);
|
|
gdk_gc_unref (mgc);
|
|
}
|
|
|
|
/**
|
|
* desktop_icon_reshape
|
|
* @dicon: The desktop icon whose shape will be recalculated
|
|
*
|
|
* Recomputes the window shape for the specified desktop icon. This needs to be called only when
|
|
* the global desktop_use_shaped_icons flag changes.
|
|
*/
|
|
void
|
|
desktop_icon_reshape (DesktopIcon *dicon)
|
|
{
|
|
GtkArg args[2];
|
|
int icon_width, icon_height;
|
|
int text_width, text_height;
|
|
double x1, y1, x2, y2;
|
|
|
|
g_return_if_fail (dicon != NULL);
|
|
g_return_if_fail (IS_DESKTOP_ICON (dicon));
|
|
|
|
/* Get size of icon image */
|
|
|
|
args[0].name = "width";
|
|
args[1].name = "height";
|
|
gtk_object_getv (GTK_OBJECT (dicon->icon), 2, args);
|
|
icon_width = GTK_VALUE_DOUBLE (args[0]);
|
|
icon_height = GTK_VALUE_DOUBLE (args[0]);
|
|
|
|
/* Get size of icon text */
|
|
|
|
gnome_canvas_item_get_bounds (dicon->text, &x1, &y1, &x2, &y2);
|
|
|
|
text_width = x2 - x1 + 1;
|
|
text_height = y2 - y1 + 1;
|
|
|
|
/* Calculate new size of widget */
|
|
|
|
dicon->width = MAX (icon_width, DESKTOP_SNAP_X);
|
|
dicon->height = icon_height + SPACING + text_height;
|
|
|
|
/* Set new position of children */
|
|
|
|
gnome_canvas_item_set (dicon->icon,
|
|
"x", (dicon->width - icon_width) / 2.0,
|
|
"y", 0.0,
|
|
NULL);
|
|
gnome_canvas_item_set (dicon->stipple,
|
|
"x1", 0.0,
|
|
"y1", 0.0,
|
|
"x2", (double) dicon->width,
|
|
"y2", (double) icon_height,
|
|
NULL);
|
|
|
|
gnome_icon_text_item_setxy (GNOME_ICON_TEXT_ITEM (dicon->text), 0, icon_height + SPACING);
|
|
|
|
/* Create and set the window shape */
|
|
|
|
gtk_widget_set_usize (GTK_WIDGET (dicon), dicon->width, dicon->height);
|
|
create_window_shape (dicon, icon_width, icon_height, text_width, text_height);
|
|
}
|
|
|
|
/**
|
|
* desktop_icon_select
|
|
* @dicon: The desktop icon which will be selected/unselected
|
|
* @sel: TRUE if icon should be selected, FALSE if it should be unselected
|
|
*
|
|
* Selects or unselects the icon. This means setting the selection flag of the icon text item as
|
|
* appropriate, and displaying the icon image as selected or not.
|
|
*/
|
|
void
|
|
desktop_icon_select (DesktopIcon *dicon, int sel)
|
|
{
|
|
g_return_if_fail (dicon != NULL);
|
|
g_return_if_fail (IS_DESKTOP_ICON (dicon));
|
|
|
|
if (sel)
|
|
gnome_canvas_item_show (dicon->stipple);
|
|
else
|
|
gnome_canvas_item_hide (dicon->stipple);
|
|
|
|
gnome_icon_text_item_select (GNOME_ICON_TEXT_ITEM (dicon->text), sel);
|
|
}
|