mirror of
git://projects.qi-hardware.com/eda-tools.git
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129 lines
2.5 KiB
C
129 lines
2.5 KiB
C
/*
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* gui/help.c - Online help
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdbool.h>
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#include <gtk/gtk.h>
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#ifdef USE_WEBKIT
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#include <webkit2/webkit2.h>
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#endif
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#include "gui/help.h"
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static GtkWidget *window = NULL;
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static bool visible;
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static void destroy_help(GtkWidget *object, gpointer user_data)
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{
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gtk_widget_destroy(window);
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window = NULL;
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}
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static gboolean key_press_event(GtkWidget *widget, GdkEventKey *event,
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gpointer data)
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{
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switch (event->keyval) {
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case GDK_KEY_h:
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case GDK_KEY_q:
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case GDK_KEY_Escape:
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gtk_widget_hide(window);
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visible = 0;
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break;
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}
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return TRUE;
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}
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#ifdef USE_WEBKIT
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static GtkWidget *help_content(void)
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{
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GtkWidget *view;
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WebKitSettings *settings;
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view = webkit_web_view_new();
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settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(view));
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webkit_settings_set_default_font_size(settings, 10);
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webkit_web_view_load_html(WEBKIT_WEB_VIEW(view),
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#include "../help.inc"
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, NULL);
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return view;
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}
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#else /* USE_WEBKIT */
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static GtkWidget *help_content(void)
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{
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GtkWidget *scroll, *label;
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scroll = gtk_scrolled_window_new(NULL, NULL);
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label = gtk_label_new(NULL);
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gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
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GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
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gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
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gtk_label_set_markup(GTK_LABEL(label),
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#include "../help.inc"
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);
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gtk_container_add(GTK_CONTAINER(scroll), label);
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return scroll;
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}
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#endif /* !USE_WEBKIT */
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static void new_help_window(void)
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{
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GtkWidget *content;
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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content = help_content();
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gtk_container_add(GTK_CONTAINER(window), content);
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gtk_window_set_default_size(GTK_WINDOW(window), 480, 360);
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gtk_widget_show_all(window);
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gtk_widget_set_can_focus(content, TRUE);
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gtk_widget_add_events(content, GDK_KEY_PRESS_MASK);
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g_signal_connect(G_OBJECT(content), "key_press_event",
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G_CALLBACK(key_press_event), NULL);
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g_signal_connect(window, "destroy", G_CALLBACK(destroy_help), NULL);
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gtk_widget_show_all(window);
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}
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void help(void)
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{
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if (!window) {
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new_help_window();
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visible = 1;
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} else {
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visible = !visible;
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if (visible)
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gtk_widget_show(window);
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else
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gtk_widget_hide(window);
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}
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}
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