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/*
* util.c
* Copyright 2010-2012 John Lindgren and Michał Lipski
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions, and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions, and the following disclaimer in the documentation
* provided with the distribution.
*
* This software is provided "as is" and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising from
* the use of this software.
*/
#include <math.h>
#include <string.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <libaudcore/audstrings.h>
#include <libaudcore/hook.h>
#include <libaudcore/i18n.h>
#include <libaudcore/runtime.h>
#include "internal.h"
#include "libaudgui.h"
#include "libaudgui-gtk.h"
EXPORT int audgui_get_dpi ()
{
static int dpi = 0;
if (! dpi)
{
GdkScreen * screen = gdk_screen_get_default ();
/* force GTK settings to be loaded for the GDK screen */
(void) gtk_settings_get_for_screen (screen);
dpi = round (gdk_screen_get_resolution (screen));
if (dpi < 1)
dpi = 96;
}
return dpi;
}
EXPORT int audgui_get_digit_width (GtkWidget * widget)
{
int width;
PangoLayout * layout = gtk_widget_create_pango_layout (widget, "0123456789");
PangoFontDescription * desc = pango_font_description_new ();
pango_font_description_set_weight (desc, PANGO_WEIGHT_BOLD);
pango_layout_set_font_description (layout, desc);
pango_layout_get_pixel_size (layout, & width, nullptr);
pango_font_description_free (desc);
g_object_unref (layout);
return (width + 9) / 10;
}
EXPORT void audgui_get_mouse_coords (GtkWidget * widget, int * x, int * y)
{
gtk_widget_get_pointer (widget, x, y);
}
EXPORT void audgui_get_mouse_coords (GdkScreen * screen, int * x, int * y)
{
gdk_display_get_pointer (gdk_screen_get_display (screen), nullptr, x, y, nullptr);
}
EXPORT void audgui_get_monitor_geometry (GdkScreen * screen, int x, int y, GdkRectangle * geom)
{
int monitors = gdk_screen_get_n_monitors (screen);
for (int i = 0; i < monitors; i ++)
{
gdk_screen_get_monitor_geometry (screen, i, geom);
if (x >= geom->x && x < geom->x + geom->width && y >= geom->y && y < geom->y + geom->height)
return;
}
/* fall back to entire screen */
geom->x = 0;
geom->y = 0;
geom->width = gdk_screen_get_width (screen);
geom->height = gdk_screen_get_height (screen);
}
static gboolean escape_destroy_cb (GtkWidget * widget, GdkEventKey * event)
{
if (event->keyval == GDK_KEY_Escape)
{
gtk_widget_destroy (widget);
return true;
}
return false;
}
EXPORT void audgui_destroy_on_escape (GtkWidget * widget)
{
g_signal_connect (widget, "key-press-event", (GCallback) escape_destroy_cb, nullptr);
}
EXPORT GtkWidget * audgui_button_new (const char * text, const char * icon,
AudguiCallback callback, void * data)
{
GtkWidget * button = gtk_button_new_with_mnemonic (text);
if (icon)
{
GtkWidget * image = gtk_image_new_from_icon_name (icon, GTK_ICON_SIZE_MENU);
gtk_button_set_image ((GtkButton *) button, image);
}
if (callback)
g_signal_connect_swapped (button, "clicked", (GCallback) callback, data);
return button;
}
EXPORT GtkWidget * audgui_dialog_new (GtkMessageType type, const char * title,
const char * text, GtkWidget * button1, GtkWidget * button2)
{
GtkWidget * dialog = gtk_message_dialog_new (nullptr, (GtkDialogFlags) 0, type,
GTK_BUTTONS_NONE, "%s", text);
gtk_window_set_title ((GtkWindow *) dialog, title);
if (button2)
{
gtk_dialog_add_action_widget ((GtkDialog *) dialog, button2, GTK_RESPONSE_NONE);
g_signal_connect_swapped (button2, "clicked", (GCallback) gtk_widget_destroy, dialog);
}
gtk_dialog_add_action_widget ((GtkDialog *) dialog, button1, GTK_RESPONSE_NONE);
g_signal_connect_swapped (button1, "clicked", (GCallback) gtk_widget_destroy, dialog);
gtk_widget_set_can_default (button1, true);
gtk_widget_grab_default (button1);
return dialog;
}
EXPORT void audgui_dialog_add_widget (GtkWidget * dialog, GtkWidget * widget)
{
GtkWidget * box = gtk_message_dialog_get_message_area ((GtkMessageDialog *) dialog);
gtk_box_pack_start ((GtkBox *) box, widget, false, false, 0);
}
EXPORT void audgui_simple_message (GtkWidget * * widget, GtkMessageType type,
const char * title, const char * text)
{
if (type == GTK_MESSAGE_ERROR)
AUDERR ("%s\n", text);
else if (type == GTK_MESSAGE_WARNING)
AUDWARN ("%s\n", text);
else if (type == GTK_MESSAGE_INFO)
AUDINFO ("%s\n", text);
if (* widget)
{
char * old = nullptr;
g_object_get ((GObject *) * widget, "text", & old, nullptr);
g_return_if_fail (old);
int messages = GPOINTER_TO_INT (g_object_get_data ((GObject *) * widget, "messages"));
if (messages > 10)
text = _("\n(Further messages have been hidden.)");
if (! strstr (old, text))
{
StringBuf both = str_concat ({old, "\n", text});
g_object_set ((GObject *) * widget, "text", (const char *) both, nullptr);
g_object_set_data ((GObject *) * widget, "messages", GINT_TO_POINTER (messages + 1));
}
g_free (old);
gtk_window_present ((GtkWindow *) * widget);
}
else
{
GtkWidget * button = audgui_button_new (_("_Close"), "window-close", nullptr, nullptr);
* widget = audgui_dialog_new (type, title, text, button, nullptr);
g_object_set_data ((GObject *) * widget, "messages", GINT_TO_POINTER (1));
g_signal_connect (* widget, "destroy", (GCallback) gtk_widget_destroyed, widget);
gtk_widget_show_all (* widget);
}
}
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