GTK gossip: gtkfilechooserbutton and gtkfilechooserdialog

In When opening a legal case or another legal case in the program, the legal representative will be used to allow users to conveniently select or decide the legal case name, the gtkfilechooserbutton can provide For the response function of the caller, you can use gtk_file_chooser_button_new () to create a tag. When using this function, you must specify the gtkfilechooseraction : Gtk_file_chooser_action_open: select the target speaker Gtk_file_chooser_action_save: The caller of the stored statement Gtk_file_chooser_action_select_folder: Target Audience Gtk_file_chooser_action_create_folder: Establish the Peer Information Gtkfilechooserbutton Implemented the gtkfilechooser Interface ,You You can use gtk_file_chooser_set_filename () to set the caller's current file name. Use Gtk_file_chooser_get_filename () to obtain the current partition name. Use Gtk_file_chooser_set_current_folder () is used to set the current object name. The caller can set the upload name to pass through. This requires gtkfilefilter, which can be created using gtk_file_filter_new (). For example: Gtkfilefilter * filter1 = gtk_file_filter_new (); Gtkfilefilter * Filter2 = gtk_file_filter_new (); Gtk_file_filter_set_name (filter1, "Images Files "); Gtk_file_filter_set_name (filter2, "All Files "); Gtk_file_filter_add_pattern (filter1, "*. PNG "); Gtk_file_filter_add_pattern (filter1, "*. XPM "); Gtk_file_filter_add_pattern (filter1, "*. jpg "); Gtk_file_filter_add_pattern (filter2 ,"*"); The following program is a simple example. You can use the gtkfilechooserdialog command to select the upload case and display the name on the gtklabel: Gtk_file_chooser_button_demo.c # Include <GTK/GTK. h> Void file_changed (gtkfilechooserbutton * button, gtklabel * label ){ Gchar * file = gtk_file_chooser_get_filename (gtk_file_chooser (button )); Gtk_label_set_text (Label, file ); } Int main (INT argc, char * argv []) { Gtkwidget * window; Gtkwidget * label; Gtkwidget * button; Gtkfilefilter * filter1, * filter2; Gtkwidget * box; Const gchar * filename = "/home/caterpillar/workspace/caterpillar.gif "; Gtk_init (& argc, & argv ); Window = gtk_window_new (gtk_window_toplevel ); Gtk_window_set_title (gtk_window (window), "gtkfilechooserbutton "); Button = gtk_file_chooser_button_new ( "Select case", gtk_file_chooser_action_open ); Gtk_file_chooser_set_filename (gtk_file_chooser (button), filename ); Filter1 = gtk_file_filter_new (); Filter2 = gtk_file_filter_new (); Gtk_file_filter_set_name (filter1, "image files "); Gtk_file_filter_set_name (filter2, "All Files "); Gtk_file_filter_add_pattern (filter1, "*. PNG "); Gtk_file_filter_add_pattern (filter1, "*. GIF "); Gtk_file_filter_add_pattern (filter1, "*. jpg "); Gtk_file_filter_add_pattern (filter2 ,"*"); Gtk_file_chooser_add_filter (gtk_file_chooser (button), filter1 ); Gtk_file_chooser_add_filter (gtk_file_chooser (button), filter2 ); Label = gtk_label_new (filename ); Box = gtk_vbox_new (true, 5 ); Gtk_box_pack_start (gtk_box (box), button, true, true, 5 ); Gtk_box_pack_start (gtk_box (box), label, true, true, 5 ); Gtk_container_add (gtk_container (window), box ); G_signal_connect (gtk_object (window), "Destroy ", G_callback (gtk_main_quit), null ); G_signal_connect (gtk_object (button), "selection_changed ", G_callback (file_changed), label ); Gtk_widget_show_all (window ); Gtk_main (); Return 0; } The external region during the initial row is as follows: When selecting an example, the caller's external region is as follows: Press the operator to generate the gtkfilechooserdialog, Gtkfilechooserdialog is the combination of gtkfilechooserwidget and gtkdialog, Gtkfilechooserwidget can be embedded with other components, either gtkfilechooserbutton or, The gtkfilechooserdialog and gtkfilechooserwidget interfaces are available. In gtkfilechooser, set the function or perform related operations. The following program uses gtkfilechooserdialog to implement the following examples: Gtk_file_chooser_dialog_demo.c # Include <GTK/GTK. h> Void file_changed (gtkbutton * button, gtkwidget ** widgets ){ Gtkwidget * dialog = gtk_file_chooser_dialog_new ( "Save another token...", gtk_window (widgets [0]), Gtk_file_chooser_action_save, Gtk_stock_cancel, gtk_response_cancel, Gtk_stock_save, gtk_response_accept, Null ); Gtkfilefilter * filter1 = gtk_file_filter_new (); Gtkfilefilter * filter2 = gtk_file_filter_new (); Gtk_file_filter_set_name (filter1, "image files "); Gtk_file_filter_set_name (filter2, "All Files "); Gtk_file_filter_add_pattern (filter1, "*. PNG "); Gtk_file_filter_add_pattern (filter1, "*. GIF "); Gtk_file_filter_add_pattern (filter1, "*. jpg "); Gtk_file_filter_add_pattern (filter2 ,"*"); Gtk_file_chooser_add_filter (gtk_file_chooser (DIALOG), filter1 ); Gtk_file_chooser_add_filter (gtk_file_chooser (DIALOG), filter2 ); If (gtk_dialog_run (gtk_dialog (DIALOG) = gtk_response_accept ){ Gchar * filename = gtk_file_chooser_get_filename ( Gtk_file_chooser (DIALOG )); Gtk_label_set_text (gtk_label (widgets [1]), filename ); G_free (filename ); } Gtk_widget_destroy (DIALOG ); } Int main (INT argc, char * argv []) { Gtkwidget * window; Gtkwidget * label; Gtkwidget * button; Gtkwidget * box; Gtkwidget * widgets [2]; Const gchar * filename = "/home/caterpillar/workspace/caterpillar.gif "; Gtk_init (& argc, & argv ); Window = gtk_window_new (gtk_window_toplevel ); Gtk_window_set_title (gtk_window (window), "gtkfilechooserdialog "); Button = gtk_button_new_with_label ("select region "); Label = gtk_label_new (filename ); Box = gtk_vbox_new (true, 5 ); Gtk_box_pack_start (gtk_box (box), button, true, true, 5 ); Gtk_box_pack_start (gtk_box (box), label, true, true, 5 ); Gtk_container_add (gtk_container (window), box ); Widgets [0] = window; Widgets [1] = label; G_signal_connect (gtk_object (window), "Destroy ", G_callback (gtk_main_quit), null ); G_signal_connect (gtk_object (button), "clicked ", G_callback (file_changed), Widgets ); Gtk_widget_show_all (window ); Gtk_main (); Return 0; }

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