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/*
* Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (C) 2008-2011 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 of the License, or (at your option) any later
* version. See http://www.gnu.org/copyleft/gpl.html the full text of the
* license.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "math-window.h"
enum {
PROP_0,
PROP_EQUATION
};
struct MathWindowPrivate
{
MathEquation *equation;
MathDisplay *display;
MathButtons *buttons;
gboolean right_aligned;
};
G_DEFINE_TYPE (MathWindow, math_window, GTK_TYPE_APPLICATION_WINDOW);
MathWindow *
math_window_new(GtkApplication *app, MathEquation *equation)
{
return g_object_new(math_window_get_type(),
"application", app,
"equation", equation, NULL);
}
MathEquation *
math_window_get_equation(MathWindow *window)
{
g_return_val_if_fail(window != NULL, NULL);
return window->priv->equation;
}
MathDisplay *
math_window_get_display(MathWindow *window)
{
g_return_val_if_fail(window != NULL, NULL);
return window->priv->display;
}
MathButtons *
math_window_get_buttons(MathWindow *window)
{
g_return_val_if_fail(window != NULL, NULL);
return window->priv->buttons;
}
void
math_window_critical_error(MathWindow *window, const gchar *title, const gchar *contents)
{
GtkWidget *dialog;
g_return_if_fail(window != NULL);
g_return_if_fail(title != NULL);
g_return_if_fail(contents != NULL);
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));
gtk_widget_destroy(GTK_WIDGET(window));
}
static gboolean
key_press_cb(MathWindow *window, GdkEventKey *event)
{
gboolean result;
g_signal_emit_by_name(window->priv->display, "key-press-event", event, &result);
if (math_buttons_get_mode (window->priv->buttons) == PROGRAMMING && (event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK) {
switch(event->keyval)
{
/* Binary */
case GDK_KEY_b:
math_equation_set_base (window->priv->equation, 2);
return TRUE;
/* Octal */
case GDK_KEY_o:
math_equation_set_base (window->priv->equation, 8);
return TRUE;
/* Decimal */
case GDK_KEY_d:
math_equation_set_base (window->priv->equation, 10);
return TRUE;
/* Hexdecimal */
case GDK_KEY_h:
math_equation_set_base (window->priv->equation, 16);
return TRUE;
}
}
return result;
}
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
create_gui(MathWindow *window)
{
GtkWidget *main_vbox, *vbox;
GtkWidget *scrolled_window;
main_vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add(GTK_CONTAINER(window), main_vbox);
gtk_widget_show(main_vbox);
vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 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), FALSE, FALSE, 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_container_add(GTK_CONTAINER(scrolled_window), GTK_WIDGET(window->priv->display));
gtk_widget_show(GTK_WIDGET(window->priv->display));
window->priv->buttons = math_buttons_new(window->priv->equation);
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));
}
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_role(GTK_WINDOW(window), "mate-calc");
gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
g_signal_connect_after(G_OBJECT(window), "key-press-event", G_CALLBACK(key_press_cb), NULL);
}
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