initial

1 files changed, 527 insertions, 0 deletions

diff --git a/src/math-window.c b/src/math-window.c
new file mode 100644
index 0000000..0daf030
--- /dev/null
+++ b/src/math-window.c
@@ -0,0 +1,527 @@
+/*  Copyright (c) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
+ *  Copyright (c) 2008-2009 Robert Ancell
+ *
+ *  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, 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., 59 Temple Place - Suite 330, Boston, MA
+ *  02111-1307, USA.
+ */
+
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+
+#include "math-window.h"
+#include "math-preferences.h"
+
+enum {
+    PROP_0,
+    PROP_EQUATION
+};
+
+struct MathWindowPrivate
+{
+    GtkWidget *menu_bar;
+    MathEquation *equation;
+    MathDisplay *display;
+    MathButtons *buttons;
+    MathPreferencesDialog *preferences_dialog;
+    gboolean right_aligned;
+    GtkWidget *mode_basic_menu_item, *mode_advanced_menu_item, *mode_financial_menu_item, *mode_programming_menu_item;
+};
+
+G_DEFINE_TYPE (MathWindow, math_window, GTK_TYPE_WINDOW);
+
+enum {
+    QUIT,
+    LAST_SIGNAL
+};
+static guint signals[LAST_SIGNAL] = { 0, };
+
+
+MathWindow *
+math_window_new(MathEquation *equation)
+{
+    return g_object_new (math_window_get_type(), "equation", equation, NULL);
+}
+
+
+GtkWidget *
+math_window_get_menu_bar(MathWindow *window)
+{
+   return window->priv->menu_bar;
+}
+
+
+MathEquation *math_window_get_equation(MathWindow *window)
+{
+    return window->priv->equation;
+}
+
+
+MathDisplay *
+math_window_get_display(MathWindow *window)
+{
+    return window->priv->display;
+}
+
+
+MathButtons *
+math_window_get_buttons(MathWindow *window)
+{
+    return window->priv->buttons;
+}
+
+
+void
+math_window_critical_error(MathWindow *window, const gchar *title, const gchar *contents)
+{
+    GtkWidget *dialog;
+
+    dialog = gtk_message_dialog_new(NULL, 0,
+                                    GTK_MESSAGE_ERROR,
+                                    GTK_BUTTONS_NONE,
+                                    "%s", title);
+    gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog),
+                                             "%s", contents);
+    gtk_dialog_add_buttons(GTK_DIALOG(dialog), GTK_STOCK_QUIT, GTK_RESPONSE_ACCEPT, NULL);
+
+    gtk_dialog_run(GTK_DIALOG(dialog));
+
+    g_signal_emit(window, signals[QUIT], 0);
+}
+
+
+static void
+copy_cb(GtkWidget *widget, MathWindow *window)
+{
+    math_equation_copy (window->priv->equation);  
+}
+
+
+static void
+paste_cb(GtkWidget *widget, MathWindow *window)
+{
+    math_equation_paste (window->priv->equation);
+}
+
+
+static void
+undo_cb(GtkWidget *widget, MathWindow *window)
+{
+    math_equation_undo(window->priv->equation);
+}
+
+
+static void
+redo_cb(GtkWidget *widget, MathWindow *window)
+{
+    math_equation_redo(window->priv->equation);
+}
+
+
+static void
+mode_changed_cb(GtkWidget *menu, MathWindow *window)
+{
+    int mode;
+
+    if (!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menu)))
+        return;
+
+    mode = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(menu), "calcmode"));
+    math_buttons_set_mode(window->priv->buttons, mode);
+}
+
+
+static void
+show_preferences_cb(GtkMenuItem *menu, MathWindow *window)
+{
+    if (!window->priv->preferences_dialog) {
+        window->priv->preferences_dialog = math_preferences_dialog_new(window->priv->equation);
+        gtk_window_set_transient_for(GTK_WINDOW(window->priv->preferences_dialog), GTK_WINDOW(window));
+    }
+    gtk_window_present(GTK_WINDOW(window->priv->preferences_dialog));
+}
+
+
+static void
+help_cb(GtkWidget *widget, MathWindow *window)
+{
+    GdkScreen *screen;
+    GError *error = NULL;
+
+    screen = gtk_widget_get_screen (GTK_WIDGET (window));
+    gtk_show_uri (screen, "ghelp:gcalctool", gtk_get_current_event_time (), &error);
+
+    if (error != NULL)
+    {
+        GtkWidget *d;
+        /* Translators: Error message displayed when unable to launch help browser */
+        const char *message = _("Unable to open help file");
+
+        d = gtk_message_dialog_new (GTK_WINDOW (window),
+                                    GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
+                                    GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE,
+                                    "%s", message);
+        gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (d),
+                                                  "%s", error->message);
+        g_signal_connect (d, "response", G_CALLBACK (gtk_widget_destroy), NULL);
+        gtk_window_present (GTK_WINDOW (d));
+
+        g_error_free (error);
+    }
+}
+
+
+static void
+about_cb(GtkWidget *widget, MathWindow *window)
+{
+    const gchar *authors[] = {
+        "Rich Burridge <[email protected]>",
+        "Robert Ancell <[email protected]>",
+        "Klaus Niederkrüger <[email protected]>",
+        NULL
+    };
+    const gchar *documenters[] = {
+        "Sun Microsystems",
+        NULL
+    };
+
+    /* The translator credits. Please translate this with your name(s). */
+    const gchar *translator_credits = _("translator-credits");
+
+    /* The license this software is under (GPL2+) */
+    char *license = _("Gcalctool is free software; you can redistribute it and/or modify\n"
+          "it under the terms of the GNU General Public License as published by\n"
+          "the Free Software Foundation; either version 2 of the License, or\n"
+          "(at your option) any later version.\n"
+          "\n"
+          "Gcalctool is distributed in the hope that it will be useful,\n"
+          "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+          "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
+          "GNU General Public License for more details.\n"
+          "\n"
+          "You should have received a copy of the GNU General Public License\n"
+          "along with Gcalctool; if not, write to the Free Software Foundation, Inc.,\n"
+          "51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA");
+
+    gtk_show_about_dialog(GTK_WINDOW(window),
+                          "name",
+                          /* Program name in the about dialog */
+                          _("Gcalctool"),
+                          "version", VERSION,
+                          "copyright",
+                          /* Copyright notice in the about dialog */
+                          _("\xc2\xa9 1986–2010 The Gcalctool authors"),
+                          "license", license,
+                          "comments",
+                          /* Short description in the about dialog */
+                          _("Calculator with financial and scientific modes."),
+                          "authors", authors,
+                          "documenters", documenters,
+                          "translator_credits", translator_credits,
+                          "logo-icon-name", "accessories-calculator",
+                          NULL);
+}
+
+
+static void
+quit_cb(GtkWidget *widget, MathWindow *window)
+{
+    g_signal_emit(window, signals[QUIT], 0);
+}
+
+
+static gboolean
+key_press_cb(MathWindow *window, GdkEventKey *event)
+{
+    gboolean result;
+    g_signal_emit_by_name(window->priv->display, "key-press-event", event, &result);
+    return result;
+}
+
+
+static void
+delete_cb(MathWindow *window, GdkEvent *event)
+{
+    g_signal_emit(window, signals[QUIT], 0);
+}
+
+
+static void
+scroll_changed_cb(GtkAdjustment *adjustment, MathWindow *window)
+{
+    if (window->priv->right_aligned)
+        gtk_adjustment_set_value(adjustment, gtk_adjustment_get_upper(adjustment) - gtk_adjustment_get_page_size(adjustment));
+}
+
+
+static void
+scroll_value_changed_cb(GtkAdjustment *adjustment, MathWindow *window)
+{
+    if (gtk_adjustment_get_value(adjustment) == gtk_adjustment_get_upper(adjustment) - gtk_adjustment_get_page_size(adjustment))
+        window->priv->right_aligned = TRUE;
+    else
+        window->priv->right_aligned = FALSE;
+}
+
+
+static void
+button_mode_changed_cb(MathButtons *buttons, GParamSpec *spec, MathWindow *window)
+{
+    GtkWidget *menu;
+
+    switch(math_buttons_get_mode(buttons))
+    {
+    default:
+    case BASIC:
+      menu = window->priv->mode_basic_menu_item;
+      //FIXME: Should it revert to decimal mode? math_equation_set_number_format(window->priv->equation, DEC);
+      break;
+
+    case ADVANCED:
+      menu = window->priv->mode_advanced_menu_item;
+      break;
+
+    case FINANCIAL:
+      menu = window->priv->mode_financial_menu_item;
+      break;
+
+    case PROGRAMMING:
+      menu = window->priv->mode_programming_menu_item;
+      break;
+    }
+    gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(menu), TRUE);
+}
+
+
+static GtkWidget *
+add_menu(GtkWidget *menu_bar, const gchar *name)
+{
+    GtkWidget *menu_item, *menu;
+
+    menu_item = gtk_menu_item_new_with_mnemonic(name);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu_bar), menu_item);
+    gtk_widget_show(menu_item);
+    menu = gtk_menu_new();
+    gtk_menu_item_set_submenu(GTK_MENU_ITEM(menu_item), menu);
+
+    return menu;
+}
+
+
+static GtkWidget *
+add_menu_item(GtkWidget *menu, GtkWidget *menu_item, GCallback callback, gpointer callback_data)
+{
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), menu_item);
+    gtk_widget_show(menu_item);
+    if (callback)
+        g_signal_connect(G_OBJECT(menu_item), "activate", callback, callback_data);
+    return menu_item;
+}
+
+
+static GtkWidget *
+radio_menu_item_new(GSList **group, const gchar *name)
+{
+    GtkWidget *menu_item;
+    menu_item = gtk_radio_menu_item_new_with_mnemonic(*group, name);
+    *group = gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(menu_item));
+    return menu_item;
+}
+
+
+static void
+create_menu(MathWindow *window)
+{
+    GtkAccelGroup *accel_group;
+    GtkWidget *menu, *menu_item;
+    GSList *group = NULL;
+  
+    accel_group = gtk_accel_group_new();
+    gtk_window_add_accel_group(GTK_WINDOW(window), accel_group);
+
+    /* Calculator menu */  
+    #define CALCULATOR_MENU_LABEL _("_Calculator")
+    /* Mode menu */
+    #define MODE_MENU_LABEL _("_Mode")
+    /* Help menu label */
+    #define HELP_MENU_LABEL _("_Help")
+    /* Basic menu label */  
+    #define MODE_BASIC_LABEL _("_Basic")
+    /* Advanced menu label */  
+    #define MODE_ADVANCED_LABEL _("_Advanced")
+    /* Financial menu label */  
+    #define MODE_FINANCIAL_LABEL _("_Financial")
+    /* Programming menu label */
+    #define MODE_PROGRAMMING_LABEL _("_Programming")
+    /* Help>Contents menu label */
+    #define HELP_CONTENTS_LABEL _("_Contents")
+
+    menu = add_menu(window->priv->menu_bar, CALCULATOR_MENU_LABEL);
+    add_menu_item(menu, gtk_image_menu_item_new_from_stock(GTK_STOCK_COPY, accel_group), G_CALLBACK(copy_cb), window);
+    add_menu_item(menu, gtk_image_menu_item_new_from_stock(GTK_STOCK_PASTE, accel_group), G_CALLBACK(paste_cb), window);
+    menu_item = add_menu_item(menu, gtk_image_menu_item_new_from_stock(GTK_STOCK_UNDO, accel_group), G_CALLBACK(undo_cb), window);
+    gtk_widget_add_accelerator(menu_item, "activate", accel_group, GDK_z, GDK_CONTROL_MASK, GTK_ACCEL_VISIBLE);
+    menu_item = add_menu_item(menu, gtk_image_menu_item_new_from_stock(GTK_STOCK_REDO, accel_group), G_CALLBACK(redo_cb), window);
+    gtk_widget_add_accelerator(menu_item, "activate", accel_group, GDK_z, GDK_CONTROL_MASK | GDK_SHIFT_MASK, GTK_ACCEL_VISIBLE);
+    add_menu_item(menu, gtk_separator_menu_item_new(), NULL, NULL);
+    add_menu_item(menu, gtk_image_menu_item_new_from_stock(GTK_STOCK_PREFERENCES, accel_group), G_CALLBACK(show_preferences_cb), window);
+    add_menu_item(menu, gtk_separator_menu_item_new(), NULL, NULL);
+    menu_item = add_menu_item(menu, gtk_image_menu_item_new_from_stock(GTK_STOCK_QUIT, accel_group), G_CALLBACK(quit_cb), window);
+    gtk_widget_add_accelerator(menu_item, "activate", accel_group, GDK_w, GDK_CONTROL_MASK, 0);
+
+    menu = add_menu(window->priv->menu_bar, MODE_MENU_LABEL);
+    window->priv->mode_basic_menu_item = add_menu_item(menu, radio_menu_item_new(&group, MODE_BASIC_LABEL), G_CALLBACK(mode_changed_cb), window);
+    g_object_set_data(G_OBJECT(window->priv->mode_basic_menu_item), "calcmode", GINT_TO_POINTER(BASIC));
+    window->priv->mode_advanced_menu_item = add_menu_item(menu, radio_menu_item_new(&group, MODE_ADVANCED_LABEL), G_CALLBACK(mode_changed_cb), window);
+    g_object_set_data(G_OBJECT(window->priv->mode_advanced_menu_item), "calcmode", GINT_TO_POINTER(ADVANCED));
+    window->priv->mode_financial_menu_item = add_menu_item(menu, radio_menu_item_new(&group, MODE_FINANCIAL_LABEL), G_CALLBACK(mode_changed_cb), window);
+    g_object_set_data(G_OBJECT(window->priv->mode_financial_menu_item), "calcmode", GINT_TO_POINTER(FINANCIAL));
+    window->priv->mode_programming_menu_item = add_menu_item(menu, radio_menu_item_new(&group, MODE_PROGRAMMING_LABEL), G_CALLBACK(mode_changed_cb), window);
+    g_object_set_data(G_OBJECT(window->priv->mode_programming_menu_item), "calcmode", GINT_TO_POINTER(PROGRAMMING));
+
+    menu = add_menu(window->priv->menu_bar, HELP_MENU_LABEL);
+    menu_item = add_menu_item(menu, gtk_menu_item_new_with_mnemonic(HELP_CONTENTS_LABEL), G_CALLBACK(help_cb), window);
+    gtk_widget_add_accelerator(menu_item, "activate", accel_group, GDK_F1, 0, GTK_ACCEL_VISIBLE);
+    add_menu_item(menu, gtk_image_menu_item_new_from_stock(GTK_STOCK_ABOUT, accel_group), G_CALLBACK(about_cb), window);
+}
+
+
+static void
+create_gui(MathWindow *window)
+{
+    GtkWidget *main_vbox, *vbox;
+    GtkWidget *scrolled_window;
+  
+    main_vbox = gtk_vbox_new(FALSE, 0);
+    gtk_container_add(GTK_CONTAINER(window), main_vbox);
+    gtk_widget_show(main_vbox);
+
+    window->priv->menu_bar = gtk_menu_bar_new();
+    gtk_box_pack_start(GTK_BOX(main_vbox), window->priv->menu_bar, TRUE, TRUE, 0);
+    gtk_widget_show(window->priv->menu_bar);
+  
+    create_menu(window);
+
+    vbox = gtk_vbox_new(FALSE, 6);
+    gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
+    gtk_box_pack_start(GTK_BOX(main_vbox), vbox, TRUE, TRUE, 0);  
+    gtk_widget_show(vbox);
+
+    scrolled_window = gtk_scrolled_window_new(NULL, NULL);
+    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
+    gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), GTK_SHADOW_IN);
+    gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET(scrolled_window), TRUE, TRUE, 0);
+    g_signal_connect(gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(scrolled_window)), "changed", G_CALLBACK(scroll_changed_cb), window);
+    g_signal_connect(gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(scrolled_window)), "value-changed", G_CALLBACK(scroll_value_changed_cb), window);
+    window->priv->right_aligned = TRUE;
+    gtk_widget_show(scrolled_window);
+
+    window->priv->display = math_display_new_with_equation(window->priv->equation);
+    gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled_window), GTK_WIDGET(window->priv->display));
+    gtk_widget_show(GTK_WIDGET(window->priv->display));
+
+    window->priv->buttons = math_buttons_new(window->priv->equation);
+    g_signal_connect(window->priv->buttons, "notify::mode", G_CALLBACK(button_mode_changed_cb), window);
+    button_mode_changed_cb(window->priv->buttons, NULL, window);
+    gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET(window->priv->buttons), TRUE, TRUE, 0);
+    gtk_widget_show(GTK_WIDGET(window->priv->buttons));
+}
+
+
+static void
+math_window_set_property(GObject      *object,
+                         guint         prop_id,
+                         const GValue *value,
+                         GParamSpec   *pspec)
+{
+    MathWindow *self;
+
+    self = MATH_WINDOW (object);
+
+    switch (prop_id) {
+    case PROP_EQUATION:
+        self->priv->equation = g_value_get_object (value);
+        create_gui(self);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+        break;
+    }
+}
+
+
+static void
+math_window_get_property(GObject    *object,
+                         guint       prop_id,
+                         GValue     *value,
+                         GParamSpec *pspec)
+{
+    MathWindow *self;
+
+    self = MATH_WINDOW (object);
+
+    switch (prop_id) {
+    case PROP_EQUATION:
+        g_value_set_object (value, self->priv->equation);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+        break;
+    }
+}
+
+
+static void
+math_window_class_init (MathWindowClass *klass)
+{
+    GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+    object_class->get_property = math_window_get_property;
+    object_class->set_property = math_window_set_property;
+
+    g_type_class_add_private (klass, sizeof (MathWindowPrivate));
+
+    g_object_class_install_property(object_class,
+                                    PROP_EQUATION,
+                                    g_param_spec_object("equation",
+                                                        "equation",
+                                                        "Equation being calculated",
+                                                        math_equation_get_type(),
+                                                        G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
+
+    signals[QUIT] =
+        g_signal_new ("quit",
+                      G_TYPE_FROM_CLASS (klass),
+                      G_SIGNAL_RUN_LAST,
+                      G_STRUCT_OFFSET (MathWindowClass, quit),
+                      NULL, NULL,
+                      g_cclosure_marshal_VOID__VOID,
+                      G_TYPE_NONE, 0);
+}
+
+
+static void
+math_window_init(MathWindow *window)
+{
+    window->priv = G_TYPE_INSTANCE_GET_PRIVATE (window, math_window_get_type(), MathWindowPrivate);
+    gtk_window_set_title(GTK_WINDOW(window),
+                         /* Title of main window */
+                         _("Calculator"));
+    gtk_window_set_icon_name(GTK_WINDOW(window), "accessories-calculator");
+    gtk_window_set_role(GTK_WINDOW(window), "gcalctool");
+    gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
+    g_signal_connect_after(G_OBJECT(window), "key-press-event", G_CALLBACK(key_press_cb), NULL);
+    g_signal_connect(G_OBJECT(window), "delete-event", G_CALLBACK(delete_cb), NULL);
+}