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/*
* Copyright 2011 Alex Merry <dev@randomguy3.me.uk>
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#import "PreviewWindow.h"
#import "Preambles.h"
#import "PreviewRenderer.h"
#import "TikzDocument.h"
#import "WidgetSurface.h"
#import "gtkhelpers.h"
@interface PreviewWindow (Private)
- (BOOL) updateOrShowError;
- (void) updateDefaultSize;
@end
// {{{ API
@implementation PreviewWindow
- (id) init {
[self release];
self = nil;
return nil;
}
- (id) initWithPreambles:(Preambles*)p config:(Configuration*)c {
self = [super init];
if (self) {
parent = NULL;
previewer = [[PreviewRenderer alloc] initWithPreambles:p config:c];
window = GTK_WINDOW (gtk_window_new (GTK_WINDOW_TOPLEVEL));
gtk_window_set_title (window, "Preview");
gtk_window_set_resizable (window, TRUE);
gtk_window_set_default_size (window, 150.0, 150.0);
g_signal_connect (G_OBJECT (window),
"delete-event",
G_CALLBACK (gtk_widget_hide_on_delete),
NULL);
GtkWidget *pdfArea = gtk_drawing_area_new ();
gtk_container_add (GTK_CONTAINER (window), pdfArea);
gtk_widget_show (pdfArea);
surface = [[WidgetSurface alloc] initWithWidget:pdfArea];
[surface setRenderDelegate:previewer];
Transformer *t = [surface transformer];
[t setFlippedAboutXAxis:![t isFlippedAboutXAxis]];
}
return self;
}
- (void) setParentWindow:(GtkWindow*)p {
parent = p;
gtk_window_set_transient_for (window, p);
if (p != NULL) {
gtk_window_set_position (window, GTK_WIN_POS_CENTER_ON_PARENT);
}
}
- (TikzDocument*) document {
return [previewer document];
}
- (void) setDocument:(TikzDocument*)doc {
[previewer setDocument:doc];
}
- (void) present {
if ([self updateOrShowError]) {
[self updateDefaultSize];
gtk_window_present (GTK_WINDOW (window));
[surface invalidate];
}
}
- (BOOL) update {
if ([self updateOrShowError]) {
[self updateDefaultSize];
return YES;
}
return NO;
}
- (void) show {
if ([self updateOrShowError]) {
[self updateDefaultSize];
gtk_widget_show (GTK_WIDGET (window));
[surface invalidate];
}
}
- (void) hide {
gtk_widget_hide (GTK_WIDGET (window));
}
- (BOOL) isVisible {
gboolean visible;
g_object_get (G_OBJECT (window), "visible", &visible, NULL);
return visible ? YES : NO;
}
- (void) setVisible:(BOOL)visible {
if (visible) {
[self show];
} else {
[self hide];
}
}
- (void) dealloc {
[previewer release];
[surface release];
gtk_widget_destroy (GTK_WIDGET (window));
[super dealloc];
}
@end
// }}}
@implementation PreviewWindow (Private)
- (BOOL) updateOrShowError {
NSError *error = nil;
if (![previewer updateWithError:&error]) {
GtkWindow *dparent = gtk_widget_get_visible (GTK_WIDGET (window))
? window
: parent;
GtkWidget *dialog = gtk_message_dialog_new (dparent,
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Failed to generate the preview: %s",
[[error localizedDescription] UTF8String]);
#if GTK_CHECK_VERSION(2,22,0)
if ([error code] == TZ_ERR_TOOL_FAILED) {
GtkBox *box = GTK_BOX (gtk_message_dialog_get_message_area (GTK_MESSAGE_DIALOG (dialog)));
GtkWidget *label = gtk_label_new ("pdflatex said:");
gtk_misc_set_alignment (GTK_MISC (label), 0, 0.5f);
gtk_widget_show (label);
gtk_box_pack_start (box, label, FALSE, TRUE, 0);
GtkWidget *view = gtk_text_view_new ();
GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_set_text (buffer, [[error toolOutput] UTF8String], -1);
gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
gtk_widget_show (view);
GtkWidget *scrolledView = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledView),
GTK_POLICY_NEVER, // horiz
GTK_POLICY_ALWAYS); // vert
gtk_widget_set_size_request (scrolledView, -1, 120);
gtk_container_add (GTK_CONTAINER (scrolledView), view);
gtk_widget_show (scrolledView);
gtk_box_pack_start (box, scrolledView, TRUE, TRUE, 0);
}
#endif // GTK+ 2.22.0
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
return NO;
}
return YES;
}
- (void) updateDefaultSize {
double width = 150;
double height = 150;
if ([previewer isValid]) {
double pWidth = [previewer width];
double pHeight = [previewer height];
width = (width < pWidth + 4) ? pWidth + 4 : width;
height = (height < pHeight + 4) ? pHeight + 4 : height;
}
gtk_window_set_default_size (window, width, height);
}
@end
// vim:ft=objc:ts=8:et:sts=4:sw=4
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