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/*
* file-dlgs.c
*
* Copyright 2009 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <glib/gi18n.h>
#include <string.h>
#include "file-dlgs.h"
#include "pref.h"
static void on_update_preview( GtkFileChooser *chooser, GtkImage* img )
{
char* file = gtk_file_chooser_get_preview_filename( chooser );
GdkPixbuf* pix = NULL;
if( file )
{
pix = gdk_pixbuf_new_from_file_at_scale( file, 128, 128, TRUE, NULL );
g_free( file );
}
if( pix )
{
gtk_image_set_from_pixbuf( img, pix );
g_object_unref( pix );
}
}
char* get_open_filename( GtkWindow* parent, const char* cwd )
{
char* file = NULL;
GtkFileChooser* dlg = (GtkFileChooser*)gtk_file_chooser_dialog_new( NULL, parent,
GTK_FILE_CHOOSER_ACTION_OPEN, GTK_STOCK_CANCEL,
GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_OK, NULL );
GtkWidget* img;
GtkFileFilter *filter;
if( cwd )
gtk_file_chooser_set_current_folder( dlg, cwd );
img = gtk_image_new();
gtk_widget_set_size_request( img, 128, 128 );
gtk_file_chooser_set_preview_widget( dlg, img );
g_signal_connect( dlg, "update-preview", G_CALLBACK(on_update_preview), img );
filter = gtk_file_filter_new();
gtk_file_filter_set_name( filter, _("All Supported Images") );
gtk_file_filter_add_pixbuf_formats( filter );
gtk_file_chooser_add_filter( dlg, filter );
filter = gtk_file_filter_new();
gtk_file_filter_set_name( filter, _("All Files") );
gtk_file_filter_add_pattern( filter, "*" );
gtk_file_chooser_add_filter( dlg, filter );
if( gtk_dialog_run( (GtkDialog*)dlg ) == GTK_RESPONSE_OK )
file = gtk_file_chooser_get_filename( dlg );
gtk_widget_destroy( (GtkWidget*)dlg );
return file;
}
static void on_int_val_changed(GtkRange* range, gpointer user_data)
{
int* val = (int*)user_data;
*val = (int)gtk_range_get_value(range);
}
static void on_file_save_filter_changed(GObject* obj, GParamSpec* pspec, gpointer user_data)
{
GtkFileChooser* dlg = (GtkFileChooser*)obj;
GtkFileFilter* filter = gtk_file_chooser_get_filter( dlg );
const char* type = (const char*)g_object_get_data(G_OBJECT(filter), "type");
GtkWidget* extra = gtk_file_chooser_get_extra_widget(dlg);
if(extra)
{
gtk_file_chooser_set_extra_widget(dlg, NULL);
extra = NULL;
}
if( type )
{
GtkWidget* label, *label2;
GtkWidget* scale;
if( strcmp( type, "jpeg" ) == 0 )
{
extra = gtk_hbox_new(FALSE, 12);
label = gtk_label_new(_("JPEG Quality:"));
label2 = gtk_label_new(_("Lower quality values yield smaller file sizes,\nbut the image quality will be poorer."));
scale = gtk_hscale_new_with_range( 0, 100, 5 );
gtk_range_set_value(GTK_RANGE(scale), pref.jpg_quality);
gtk_range_set_update_policy(GTK_RANGE(scale), GTK_UPDATE_DISCONTINUOUS);
g_signal_connect(G_OBJECT(scale), "value-changed", G_CALLBACK(on_int_val_changed), &pref.jpg_quality);
gtk_scale_set_draw_value(GTK_SCALE(scale), TRUE);
gtk_scale_set_value_pos(GTK_SCALE(scale), GTK_POS_RIGHT);
gtk_box_pack_start(GTK_BOX(extra), label, FALSE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(extra), scale, TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(extra), label2, FALSE, TRUE, 0);
}
else if( strcmp( type, "png" ) == 0 )
{
extra = gtk_hbox_new(FALSE, 12);
label = gtk_label_new(_("PNG Compression Level:"));
label2 = gtk_label_new(_("Higher compression levels yield smaller file sizes,\nbut takes more time to do the compression."));
scale = gtk_hscale_new_with_range( 0, 9, 1 );
gtk_range_set_value(GTK_RANGE(scale), pref.png_compression);
gtk_range_set_update_policy(GTK_RANGE(scale), GTK_UPDATE_DISCONTINUOUS);
g_signal_connect(G_OBJECT(scale), "value-changed", G_CALLBACK(on_int_val_changed), &pref.png_compression);
gtk_scale_set_draw_value(GTK_SCALE(scale), TRUE);
gtk_scale_set_value_pos(GTK_SCALE(scale), GTK_POS_RIGHT);
gtk_box_pack_start(GTK_BOX(extra), label, FALSE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(extra), scale, TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(extra), label2, FALSE, TRUE, 0);
}
/* FIXME: provide "depth settings for *.ico files" */
if( extra )
{
gtk_widget_show_all(extra);
gtk_file_chooser_set_extra_widget(dlg, extra);
}
}
}
char* get_save_filename( GtkWindow* parent, const char* cwd, char** type )
{
char* file = NULL;
GtkFileChooser* dlg = (GtkFileChooser*)gtk_file_chooser_dialog_new( NULL, parent,
GTK_FILE_CHOOSER_ACTION_SAVE, GTK_STOCK_CANCEL,
GTK_RESPONSE_CANCEL, GTK_STOCK_SAVE, GTK_RESPONSE_OK, NULL );
GSList* modules, *module;
GtkFileFilter *filter;
gtk_file_chooser_set_current_folder( dlg, cwd );
GtkWidget* img = gtk_image_new();
gtk_widget_set_size_request( img, 128, 128 );
gtk_file_chooser_set_preview_widget( dlg, img );
g_signal_connect( dlg, "update-preview", G_CALLBACK(on_update_preview), img );
g_signal_connect( dlg, "notify::filter", G_CALLBACK(on_file_save_filter_changed), NULL );
/*
/// TODO: determine file type from file name
filter = gtk_file_filter_new();
gtk_file_filter_set_name( filter, _("Determined by File Name") );
gtk_file_filter_add_pixbuf_formats( filter );
gtk_file_chooser_add_filter( dlg, filter );
*/
modules = gdk_pixbuf_get_formats();
for( module = modules; module; module = module->next )
{
char *name, *desc, *tmp;
char **exts, **mimes, **mime;
GdkPixbufFormat* format = (GdkPixbufFormat*)module->data;
if( ! gdk_pixbuf_format_is_writable( format ) )
continue;
filter = gtk_file_filter_new();
name = gdk_pixbuf_format_get_name( format );
desc = gdk_pixbuf_format_get_description( format );
exts = gdk_pixbuf_format_get_extensions( format );
mimes = gdk_pixbuf_format_get_mime_types( format );
tmp = g_strdup_printf( "%s (*.%s)", desc, exts[0], NULL );
g_object_set_data_full(G_OBJECT(filter), "type", name, (GDestroyNotify)g_free);
g_strfreev(exts);
g_free( desc );
gtk_file_filter_set_name( filter, tmp );
g_free( tmp );
for( mime = mimes; *mime ; ++mime )
gtk_file_filter_add_mime_type( filter, *mime );
g_strfreev( mimes );
gtk_file_chooser_add_filter( dlg, filter );
}
g_slist_free( modules );
int initial_jpg_quality = pref.jpg_quality;
int initial_png_compression = pref.png_compression;
if( gtk_dialog_run( (GtkDialog*)dlg ) == GTK_RESPONSE_OK )
{
filter = gtk_file_chooser_get_filter( dlg );
file = gtk_file_chooser_get_filename( dlg );
*type = g_object_steal_data(G_OBJECT(filter), "type");
if( !*type ) // auto detection
{
/// TODO: auto file type
}
else
{
/* TODO: append appropriate extension if needed. */
}
}
gtk_widget_destroy( (GtkWidget*)dlg );
if ((initial_jpg_quality != pref.jpg_quality) || (initial_png_compression != pref.png_compression))
save_preferences();
return file;
}
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