1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
|
/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "helpwindow.h"
#include <tqstatusbar.h>
#include <ntqpixmap.h>
#include <tqpopupmenu.h>
#include <tqmenubar.h>
#include <tqtoolbar.h>
#include <tqtoolbutton.h>
#include <tqiconset.h>
#include <tqfile.h>
#include <tqtextstream.h>
#include <tqstylesheet.h>
#include <ntqmessagebox.h>
#include <tqfiledialog.h>
#include <ntqapplication.h>
#include <ntqcombobox.h>
#include <ntqevent.h>
#include <ntqlineedit.h>
#include <tqobjectlist.h>
#include <tqfileinfo.h>
#include <tqfile.h>
#include <tqdatastream.h>
#include <ntqprinter.h>
#include <ntqsimplerichtext.h>
#include <tqpainter.h>
#include <tqpaintdevicemetrics.h>
#include <ctype.h>
HelpWindow::HelpWindow( const TQString& home_, const TQString& _path,
TQWidget* parent, const char *name )
: TQMainWindow( parent, name, WDestructiveClose ),
pathCombo( 0 ), selectedURL()
{
readHistory();
readBookmarks();
browser = new TQTextBrowser( this );
browser->mimeSourceFactory()->setFilePath( _path );
browser->setFrameStyle( TQFrame::Panel | TQFrame::Sunken );
connect( browser, TQ_SIGNAL( textChanged() ),
this, TQ_SLOT( textChanged() ) );
setCentralWidget( browser );
if ( !home_.isEmpty() )
browser->setSource( home_ );
connect( browser, TQ_SIGNAL( highlighted( const TQString&) ),
statusBar(), TQ_SLOT( message( const TQString&)) );
resize( 640,700 );
TQPopupMenu* file = new TQPopupMenu( this );
file->insertItem( tr("&New Window"), this, TQ_SLOT( newWindow() ), ALT | Key_N );
file->insertItem( tr("&Open File"), this, TQ_SLOT( openFile() ), ALT | Key_O );
file->insertItem( tr("&Print"), this, TQ_SLOT( print() ), ALT | Key_P );
// The same three icons are used twice each.
TQIconSet icon_back( TQPixmap("textdrawing/previous.png") );
TQIconSet icon_forward( TQPixmap("textdrawing/next.png") );
TQIconSet icon_home( TQPixmap("textdrawing/home.png") );
TQPopupMenu* go = new TQPopupMenu( this );
backwardId = go->insertItem( icon_back,
tr("&Backward"), browser, TQ_SLOT( backward() ),
ALT | Key_Left );
forwardId = go->insertItem( icon_forward,
tr("&Forward"), browser, TQ_SLOT( forward() ),
ALT | Key_Right );
go->insertItem( icon_home, tr("&Home"), browser, TQ_SLOT( home() ) );
hist = new TQPopupMenu( this );
TQStringList::Iterator it = history.begin();
for ( ; it != history.end(); ++it )
mHistory[ hist->insertItem( *it ) ] = *it;
connect( hist, TQ_SIGNAL( activated( int ) ),
this, TQ_SLOT( histChosen( int ) ) );
bookm = new TQPopupMenu( this );
bookm->insertItem( tr( "Add Bookmark" ), this, TQ_SLOT( addBookmark() ) );
bookm->insertSeparator();
TQStringList::Iterator it2 = bookmarks.begin();
for ( ; it2 != bookmarks.end(); ++it2 )
mBookmarks[ bookm->insertItem( *it2 ) ] = *it2;
connect( bookm, TQ_SIGNAL( activated( int ) ),
this, TQ_SLOT( bookmChosen( int ) ) );
menuBar()->insertItem( tr("&File"), file );
menuBar()->insertItem( tr("&Go"), go );
menuBar()->insertItem( tr( "History" ), hist );
menuBar()->insertItem( tr( "Bookmarks" ), bookm );
menuBar()->setItemEnabled( forwardId, FALSE);
menuBar()->setItemEnabled( backwardId, FALSE);
connect( browser, TQ_SIGNAL( backwardAvailable( bool ) ),
this, TQ_SLOT( setBackwardAvailable( bool ) ) );
connect( browser, TQ_SIGNAL( forwardAvailable( bool ) ),
this, TQ_SLOT( setForwardAvailable( bool ) ) );
TQToolBar* toolbar = new TQToolBar( this );
addToolBar( toolbar, "Toolbar");
TQToolButton* button;
button = new TQToolButton( icon_back, tr("Backward"), "", browser, TQ_SLOT(backward()), toolbar );
connect( browser, TQ_SIGNAL( backwardAvailable(bool) ), button, TQ_SLOT( setEnabled(bool) ) );
button->setEnabled( FALSE );
button = new TQToolButton( icon_forward, tr("Forward"), "", browser, TQ_SLOT(forward()), toolbar );
connect( browser, TQ_SIGNAL( forwardAvailable(bool) ), button, TQ_SLOT( setEnabled(bool) ) );
button->setEnabled( FALSE );
button = new TQToolButton( icon_home, tr("Home"), "", browser, TQ_SLOT(home()), toolbar );
toolbar->addSeparator();
pathCombo = new TQComboBox( TRUE, toolbar );
connect( pathCombo, TQ_SIGNAL( activated( const TQString & ) ),
this, TQ_SLOT( pathSelected( const TQString & ) ) );
toolbar->setStretchableWidget( pathCombo );
setRightJustification( TRUE );
setDockEnabled( DockLeft, FALSE );
setDockEnabled( DockRight, FALSE );
pathCombo->insertItem( home_ );
browser->setFocus();
}
void HelpWindow::setBackwardAvailable( bool b)
{
menuBar()->setItemEnabled( backwardId, b);
}
void HelpWindow::setForwardAvailable( bool b)
{
menuBar()->setItemEnabled( forwardId, b);
}
void HelpWindow::textChanged()
{
if ( browser->documentTitle().isNull() )
setCaption( browser->context() );
else
setCaption( browser->documentTitle() ) ;
selectedURL = caption();
if ( !selectedURL.isEmpty() && pathCombo ) {
bool exists = FALSE;
int i;
for ( i = 0; i < pathCombo->count(); ++i ) {
if ( pathCombo->text( i ) == selectedURL ) {
exists = TRUE;
break;
}
}
if ( !exists ) {
pathCombo->insertItem( selectedURL, 0 );
pathCombo->setCurrentItem( 0 );
mHistory[ hist->insertItem( selectedURL ) ] = selectedURL;
} else
pathCombo->setCurrentItem( i );
selectedURL = TQString::null;
}
}
HelpWindow::~HelpWindow()
{
history.clear();
TQMap<int, TQString>::Iterator it = mHistory.begin();
for ( ; it != mHistory.end(); ++it )
history.append( *it );
TQFile f( TQDir::currentDirPath() + "/.history" );
f.open( IO_WriteOnly );
TQDataStream s( &f );
s << history;
f.close();
bookmarks.clear();
TQMap<int, TQString>::Iterator it2 = mBookmarks.begin();
for ( ; it2 != mBookmarks.end(); ++it2 )
bookmarks.append( *it2 );
TQFile f2( TQDir::currentDirPath() + "/.bookmarks" );
f2.open( IO_WriteOnly );
TQDataStream s2( &f2 );
s2 << bookmarks;
f2.close();
}
void HelpWindow::about()
{
TQMessageBox::about( this, "HelpViewer Example",
"<p>This example implements a simple HTML help viewer "
"using TQt's rich text capabilities</p>"
"<p>It's just about 100 lines of C++ code, so don't expect too much :-)</p>"
);
}
void HelpWindow::aboutTQt()
{
TQMessageBox::aboutTQt( this, "TQBrowser" );
}
void HelpWindow::openFile()
{
#ifndef TQT_NO_FILEDIALOG
TQString fn = TQFileDialog::getOpenFileName( TQString::null, TQString::null, this );
if ( !fn.isEmpty() )
browser->setSource( fn );
#endif
}
void HelpWindow::newWindow()
{
( new HelpWindow(browser->source(), "qbrowser") )->show();
}
void HelpWindow::print()
{
#ifndef TQT_NO_PRINTER
TQPrinter printer;
printer.setFullPage(TRUE);
if ( printer.setup() ) {
TQPainter p( &printer );
TQPaintDeviceMetrics metrics(p.device());
int dpix = metrics.logicalDpiX();
int dpiy = metrics.logicalDpiY();
const int margin = 72; // pt
TQRect body(margin*dpix/72, margin*dpiy/72,
metrics.width()-margin*dpix/72*2,
metrics.height()-margin*dpiy/72*2 );
TQFont font("times", 10);
TQStringList filePaths = browser->mimeSourceFactory()->filePath();
TQString file;
TQStringList::Iterator it = filePaths.begin();
for ( ; it != filePaths.end(); ++it ) {
file = TQUrl( *it, TQUrl( browser->source() ).path() ).path();
if ( TQFile::exists( file ) )
break;
else
file = TQString::null;
}
if ( file.isEmpty() )
return;
TQFile f( file );
if ( !f.open( IO_ReadOnly ) )
return;
TQTextStream ts( &f );
TQSimpleRichText richText( ts.read(), font, browser->context(), browser->styleSheet(),
browser->mimeSourceFactory(), body.height() );
richText.setWidth( &p, body.width() );
TQRect view( body );
int page = 1;
do {
richText.draw( &p, body.left(), body.top(), view, colorGroup() );
view.moveBy( 0, body.height() );
p.translate( 0 , -body.height() );
p.setFont( font );
p.drawText( view.right() - p.fontMetrics().width( TQString::number(page) ),
view.bottom() + p.fontMetrics().ascent() + 5, TQString::number(page) );
if ( view.top() >= richText.height() )
break;
printer.newPage();
page++;
} while (TRUE);
}
#endif
}
void HelpWindow::pathSelected( const TQString &_path )
{
browser->setSource( _path );
TQMap<int, TQString>::Iterator it = mHistory.begin();
bool exists = FALSE;
for ( ; it != mHistory.end(); ++it ) {
if ( *it == _path ) {
exists = TRUE;
break;
}
}
if ( !exists )
mHistory[ hist->insertItem( _path ) ] = _path;
}
void HelpWindow::readHistory()
{
if ( TQFile::exists( TQDir::currentDirPath() + "/.history" ) ) {
TQFile f( TQDir::currentDirPath() + "/.history" );
f.open( IO_ReadOnly );
TQDataStream s( &f );
s >> history;
f.close();
while ( history.count() > 20 )
history.remove( history.begin() );
}
}
void HelpWindow::readBookmarks()
{
if ( TQFile::exists( TQDir::currentDirPath() + "/.bookmarks" ) ) {
TQFile f( TQDir::currentDirPath() + "/.bookmarks" );
f.open( IO_ReadOnly );
TQDataStream s( &f );
s >> bookmarks;
f.close();
}
}
void HelpWindow::histChosen( int i )
{
if ( mHistory.contains( i ) )
browser->setSource( mHistory[ i ] );
}
void HelpWindow::bookmChosen( int i )
{
if ( mBookmarks.contains( i ) )
browser->setSource( mBookmarks[ i ] );
}
void HelpWindow::addBookmark()
{
mBookmarks[ bookm->insertItem( caption() ) ] = caption();
}
|
