michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include <stdio.h>
michael@0: #include <gtk/gtk.h>
michael@0: #include <unistd.h>
michael@0: #include "progressui.h"
michael@0: #include "readstrings.h"
michael@0: #include "errors.h"
michael@0: 
michael@0: #define TIMER_INTERVAL 100
michael@0: 
michael@0: static float    sProgressVal;  // between 0 and 100
michael@0: static gboolean sQuit = FALSE;
michael@0: static gboolean sEnableUI;
michael@0: static guint    sTimerID;
michael@0: 
michael@0: static GtkWidget *sWin;
michael@0: static GtkWidget *sLabel;
michael@0: static GtkWidget *sProgressBar;
michael@0: 
michael@0: static const char *sProgramPath;
michael@0: 
michael@0: static gboolean
michael@0: UpdateDialog(gpointer data)
michael@0: {
michael@0:   if (sQuit)
michael@0:   {
michael@0:     gtk_widget_hide(sWin);
michael@0:     gtk_main_quit();
michael@0:   }
michael@0: 
michael@0:   float progress = sProgressVal;
michael@0: 
michael@0:   gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(sProgressBar),
michael@0:                                 progress / 100.0);
michael@0: 
michael@0:   return TRUE;
michael@0: }
michael@0: 
michael@0: static gboolean
michael@0: OnDeleteEvent(GtkWidget *widget, GdkEvent *event, gpointer user_data)
michael@0: {
michael@0:   return TRUE;
michael@0: }
michael@0: 
michael@0: int
michael@0: InitProgressUI(int *pargc, char ***pargv)
michael@0: {
michael@0:   sProgramPath = (*pargv)[0];
michael@0: 
michael@0:   sEnableUI = gtk_init_check(pargc, pargv);
michael@0:   return 0;
michael@0: }
michael@0: 
michael@0: int
michael@0: ShowProgressUI()
michael@0: {
michael@0:   if (!sEnableUI)
michael@0:     return -1;
michael@0: 
michael@0:   // Only show the Progress UI if the process is taking a significant amount of
michael@0:   // time where a significant amount of time is defined as .5 seconds after
michael@0:   // ShowProgressUI is called sProgress is less than 70.
michael@0:   usleep(500000);
michael@0: 
michael@0:   if (sQuit || sProgressVal > 70.0f)
michael@0:     return 0;
michael@0: 
michael@0:   char ini_path[PATH_MAX];
michael@0:   snprintf(ini_path, sizeof(ini_path), "%s.ini", sProgramPath);
michael@0: 
michael@0:   StringTable strings;
michael@0:   if (ReadStrings(ini_path, &strings) != OK)
michael@0:     return -1;
michael@0: 
michael@0:   sWin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
michael@0:   if (!sWin)
michael@0:     return -1;
michael@0: 
michael@0:   static GdkPixbuf *pixbuf;
michael@0:   char icon_path[PATH_MAX];
michael@0:   snprintf(icon_path, sizeof(icon_path), "%s.png", sProgramPath);
michael@0: 
michael@0:   g_signal_connect(G_OBJECT(sWin), "delete_event",
michael@0:                    G_CALLBACK(OnDeleteEvent), nullptr);
michael@0: 
michael@0:   gtk_window_set_title(GTK_WINDOW(sWin), strings.title);
michael@0:   gtk_window_set_type_hint(GTK_WINDOW(sWin), GDK_WINDOW_TYPE_HINT_DIALOG);
michael@0:   gtk_window_set_position(GTK_WINDOW(sWin), GTK_WIN_POS_CENTER_ALWAYS);
michael@0:   gtk_window_set_resizable(GTK_WINDOW(sWin), FALSE);
michael@0:   gtk_window_set_decorated(GTK_WINDOW(sWin), TRUE);
michael@0:   gtk_window_set_deletable(GTK_WINDOW(sWin),FALSE);
michael@0:   pixbuf = gdk_pixbuf_new_from_file (icon_path, nullptr);
michael@0:   gtk_window_set_icon(GTK_WINDOW(sWin), pixbuf);
michael@0:   g_object_unref(pixbuf);
michael@0: 
michael@0:   GtkWidget *vbox = gtk_vbox_new(TRUE, 6);
michael@0:   sLabel = gtk_label_new(strings.info);
michael@0:   gtk_misc_set_alignment(GTK_MISC(sLabel), 0.0f, 0.0f);
michael@0:   sProgressBar = gtk_progress_bar_new();
michael@0: 
michael@0:   gtk_box_pack_start(GTK_BOX(vbox), sLabel, FALSE, FALSE, 0);
michael@0:   gtk_box_pack_start(GTK_BOX(vbox), sProgressBar, TRUE, TRUE, 0);
michael@0: 
michael@0:   sTimerID = g_timeout_add(TIMER_INTERVAL, UpdateDialog, nullptr);
michael@0: 
michael@0:   gtk_container_set_border_width(GTK_CONTAINER(sWin), 10);
michael@0:   gtk_container_add(GTK_CONTAINER(sWin), vbox);
michael@0:   gtk_widget_show_all(sWin);
michael@0: 
michael@0:   gtk_main();
michael@0:   return 0;
michael@0: }
michael@0: 
michael@0: // Called on a background thread
michael@0: void
michael@0: QuitProgressUI()
michael@0: {
michael@0:   sQuit = TRUE;
michael@0: }
michael@0: 
michael@0: // Called on a background thread
michael@0: void
michael@0: UpdateProgressUI(float progress)
michael@0: {
michael@0:   sProgressVal = progress;  // 32-bit writes are atomic
michael@0: }