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
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
|
/*
* This file is part of the KDE libraries
* Copyright (c) 2001 Michael Goffioul <tdeprint@swing.be>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License version 2 as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
**/
#include "kpfilterpage.h"
#include "kmfactory.h"
#include "kxmlcommand.h"
#include <tqtoolbutton.h>
#include <tqheader.h>
#include <tqtooltip.h>
#include <tqlayout.h>
#include <tqwhatsthis.h>
#include <tdelistview.h>
#include <klocale.h>
#include <kiconloader.h>
#include <kmessagebox.h>
#include <kactivelabel.h>
#include <kdebug.h>
#include <tdeapplication.h>
#include <kdialog.h>
KPFilterPage::KPFilterPage(TQWidget *parent, const char *name)
: KPrintDialogPage(parent,name)
{
//WhatsThis strings.... (added by pfeifle@kde.org)
TQString whatsThisAddFilterButton = i18n( " <qt> <b>Add Filter button</b>"
" <p>This button calls a little dialog to let you"
" select a filter here. </p>"
" <p><b>Note 1:</b> You can chain different filters as long as you make "
" sure that the output of one fits as input of the next. (TDEPrint "
" checks your filtering chain and will warn you if you fail to do so.</p> "
" <p><b>Note 2:</b> The filters you define here are applied to your jobfile "
" <em><b>before</b></em> it is handed downstream to your spooler and print "
" subsystem (e.g. CUPS, LPRng, LPD).</p>"
" </ul>"
" </qt>" );
TQString whatsThisRemoveFilterButton = i18n(" <qt> <b>Remove Filter button</b>"
" <p>This button removes the highlighted filter from the"
" list of filters."
" </qt>" );
TQString whatsThisMoveFilterUpButton = i18n(" <qt> <b>Move Filter Up button</b>"
" <p>This button moves the highlighted filter up in the list"
" of filters, towards the front of the filtering chain. </p>"
" </qt>" );
TQString whatsThisMoveFilterDownButton = i18n(" <qt> <b>Move Filter Down button</b>"
" <p>This button moves the highlighted filter down in the list"
" of filters, towards the end of the filtering chain..</p>"
" </qt>" );
TQString whatsThisConfigureFilterButton = i18n( " <qt> <b>Configure Filter button</b>"
" <p>This button lets you configure the currently highlighted filter."
" It opens a separate dialog. "
" </p>"
" </qt>" );
TQString whatsThisFilterInfoPane = i18n( " <qt> <b>Filter Info Pane</b>"
" <p>This field shows some general info about the selected filter. "
" Amongst them are: "
" <ul> "
" <li>the <em>filter name</em> (as displayed in the TDEPrint user interface); </li> "
" <li>the <em>filter requirements</em> (that is the external program that needs "
" to present and executable on this system); </li> "
" <li>the <em>filter input format</em> (in the form of one or several <em>MIME types</em>"
" accepted by the filter); </li> "
" <li>the <em>filter output format</em> (in the form of a <em>MIME type</em> "
" generated by the filter); </li> "
" <li>a more or less verbose text describing the filter's operation.</li> "
" </ul> "
" </p>"
" </qt>" );
TQString whatsThisFilterchainListView = i18n( " <qt> <b>Filtering Chain</b> (if enabled, is run <em>before</em> actual "
" job submission to print system)"
" <p>This field shows which filters are currently selected to act as 'pre-filters' "
" for TDEPrint. Pre-filters are processing the print files <em>before</em> they are "
" send downstream to your real print subsystem. </p> "
" <p>The list shown in this field may be empty (default). </p> "
" <p>The pre-filters act on the printjob in the order they are listed (from top to bottom). "
" This is done by acting as a <em>filtering chain</em> where the output of one filter "
" acts as input to the next. By putting the filters into the wrong order, you can make "
" the filtering chain fail. For example: if your file is ASCII text, and you want the "
" output being processed by the 'Multipage per Sheet' filter, the first filter must be "
" one that processes ASCII into PostScript. </p> "
" <p>TDEPrint can utilize <em>any</em> external filtering program which you may find useful "
" through this interface. </p> "
" <p>TDEPrint ships preconfigured with support for a selection of common filters. These "
" filters however need to be "
" installed independently from TDEPrint. These pre-filters work <em>for all</em> print subsystems"
" supported by TDEPrint (such as CUPS, LPRng and LPD), because they are not depending on these.</p> "
".<p> Amongst the pre-configured filters shipping with TDEPrint are: </p> "
" <ul> "
" <li>the <em>Enscript text filter</em> </li> "
" <li>a <em>Multiple Pages per Sheet filter</em </li> "
" <li>a <em>PostScript to PDF converter</em>.</li> "
" <li>a <em>Page Selection/Ordering filter</em>.</li> "
" <li>a <em>Poster Printing filter</em>.</li> "
" <li>and some more..</li> "
" </ul> "
" To insert a filter into this list, simply click on the <em>funnel</em> icon (topmost on "
" the right icon column group) and proceed. </p>"
" <p>Please click on the other elements of this dialog to learn more about the TDEPrint "
" pre-filters. "
" </p>"
" </qt>" );
setTitle(i18n("Filters"));
m_activefilters.setAutoDelete(true);
m_valid = true;
m_view = new TDEListView(this);
TQWhatsThis::add(m_view, whatsThisFilterchainListView);
m_view->addColumn("");
m_view->setFrameStyle(TQFrame::WinPanel|TQFrame::Sunken);
m_view->setLineWidth(1);
m_view->setSorting(-1);
m_view->header()->hide();
connect(m_view,TQT_SIGNAL(selectionChanged(TQListViewItem*)),TQT_SLOT(slotItemSelected(TQListViewItem*)));
m_add = new TQToolButton(this);
TQWhatsThis::add(m_add, whatsThisAddFilterButton);
m_add->setIconSet(BarIconSet("filter"));
TQToolTip::add(m_add, i18n("Add filter"));
m_remove = new TQToolButton(this);
TQWhatsThis::add(m_remove, whatsThisRemoveFilterButton);
m_remove->setIconSet(BarIconSet("remove"));
TQToolTip::add(m_remove, i18n("Remove filter"));
m_up = new TQToolButton(this);
TQWhatsThis::add(m_up, whatsThisMoveFilterUpButton);
m_up->setIconSet(BarIconSet("up"));
TQToolTip::add(m_up, i18n("Move filter up"));
m_down = new TQToolButton(this);
TQWhatsThis::add(m_down, whatsThisMoveFilterDownButton);
m_down->setIconSet(BarIconSet("down"));
TQToolTip::add(m_down, i18n("Move filter down"));
m_configure = new TQToolButton(this);
TQWhatsThis::add(m_configure, whatsThisConfigureFilterButton);
m_configure->setIconSet(BarIconSet("configure"));
TQToolTip::add(m_configure, i18n("Configure filter"));
connect(m_add,TQT_SIGNAL(clicked()),TQT_SLOT(slotAddClicked()));
connect(m_remove,TQT_SIGNAL(clicked()),TQT_SLOT(slotRemoveClicked()));
connect(m_up,TQT_SIGNAL(clicked()),TQT_SLOT(slotUpClicked()));
connect(m_down,TQT_SIGNAL(clicked()),TQT_SLOT(slotDownClicked()));
connect(m_configure,TQT_SIGNAL(clicked()),TQT_SLOT(slotConfigureClicked()));
connect(m_view,TQT_SIGNAL(doubleClicked(TQListViewItem*)),TQT_SLOT(slotConfigureClicked()));
m_info = new KActiveLabel(this);
TQWhatsThis::add(m_info, whatsThisFilterInfoPane);
m_info->setVScrollBarMode( TQScrollView::Auto );
m_info->setHScrollBarMode( TQScrollView::Auto );
m_info->setFrameStyle( TQFrame::Panel|TQFrame::Sunken );
m_info->setMinimumSize( TQSize( 240, 100 ) );
TQGridLayout *l1 = new TQGridLayout(this, 2, 2, 0, KDialog::spacingHint());
l1->setColStretch(0, 1);
TQVBoxLayout *l2 = new TQVBoxLayout(0, 0, 1);
l1->addWidget(m_view, 0, 0);
l1->addLayout(l2, 0, 1);
l2->addWidget(m_add);
l2->addWidget(m_remove);
l2->addSpacing(5);
l2->addWidget(m_up);
l2->addWidget(m_down);
l2->addSpacing(5);
l2->addWidget(m_configure);
l2->addStretch(1);
l1->addMultiCellWidget(m_info, 1, 1, 0, 1);
slotItemSelected(0);
resize(100,50);
}
KPFilterPage::~KPFilterPage()
{
}
void KPFilterPage::updateButton()
{
/* TQListViewItem *item = m_view->currentItem();
bool state=(item!=0);
m_remove->setEnabled(state);
m_up->setEnabled((state && item->itemAbove() != 0));
m_down->setEnabled((state && item->itemBelow() != 0));
m_configure->setEnabled(state);*/
}
void KPFilterPage::slotAddClicked()
{
bool ok;
TQString choice = KXmlCommandManager::self()->selectCommand( this );
ok = !choice.isEmpty();
if (ok)
{
KXmlCommand *cmd = KXmlCommandManager::self()->loadCommand(choice);
if (!cmd) return; // Error
TQStringList filters = activeList();
int pos = KXmlCommandManager::self()->insertCommand(filters, cmd->name());
TQListViewItem *prev(0);
if (pos > 0)
{
prev = m_view->firstChild();
for (int i=1;prev && i<pos;i++)
prev = prev->nextSibling();
}
m_activefilters.insert(cmd->name(), cmd);
TQListViewItem *item = new TQListViewItem(m_view, prev, cmd->description(), cmd->name());
item->setPixmap(0, SmallIcon("filter"));
checkFilterChain();
}
}
void KPFilterPage::slotRemoveClicked()
{
if (m_view->selectedItem())
{
TQString idname = m_view->selectedItem()->text(1);
delete m_view->selectedItem();
m_activefilters.remove(idname);
checkFilterChain();
if (m_view->currentItem())
m_view->setSelected(m_view->currentItem(), true);
slotItemSelected(m_view->currentItem());
}
}
void KPFilterPage::slotUpClicked()
{
TQListViewItem *item = m_view->selectedItem();
if (item && item->itemAbove())
{
TQListViewItem *clone = new TQListViewItem(m_view,item->itemAbove()->itemAbove(),item->text(0),item->text(1));
clone->setPixmap(0, SmallIcon("filter"));
delete item;
m_view->setSelected(clone, true);
checkFilterChain();
}
}
void KPFilterPage::slotDownClicked()
{
TQListViewItem *item = m_view->selectedItem();
if (item && item->itemBelow())
{
TQListViewItem *clone = new TQListViewItem(m_view,item->itemBelow(),item->text(0),item->text(1));
clone->setPixmap(0, SmallIcon("filter"));
delete item;
m_view->setSelected(clone, true);
checkFilterChain();
}
}
void KPFilterPage::slotConfigureClicked()
{
KXmlCommand *filter = currentFilter();
if (!filter || !KXmlCommandManager::self()->configure(filter, this))
KMessageBox::error(this,i18n("Internal error: unable to load filter."));
}
void KPFilterPage::slotItemSelected(TQListViewItem *item)
{
m_remove->setEnabled((item != 0));
m_up->setEnabled((item != 0 && item->itemAbove() != 0));
m_down->setEnabled((item != 0 && item->itemBelow() != 0));
m_configure->setEnabled((item != 0));
updateInfo();
}
void KPFilterPage::setOptions(const TQMap<TQString,TQString>& opts)
{
TQStringList filters = TQStringList::split(',',opts["_kde-filters"],false);
// remove unneeded filters
TQDictIterator<KXmlCommand> dit(m_activefilters);
for (;dit.current();)
{
if (filters.find(dit.currentKey()) == filters.end())
m_activefilters.remove(dit.currentKey());
else
{
dit.current()->setOptions(opts);
++dit;
}
}
// add needed filters
m_view->clear();
TQListViewItem *item(0);
for (TQStringList::ConstIterator sit=filters.begin(); sit!=filters.end(); ++sit)
{
KXmlCommand *f(0);
if ((f=m_activefilters.find(*sit)) == 0)
{
f = KXmlCommandManager::self()->loadCommand(*sit);
if (f)
{
m_activefilters.insert(*sit,f);
f->setOptions(opts);
}
}
if (f)
item = new TQListViewItem(m_view,item,f->description(),f->name());
}
checkFilterChain();
}
void KPFilterPage::getOptions(TQMap<TQString,TQString>& opts, bool incldef)
{
TQStringList filters = activeList();
for (TQStringList::ConstIterator it=filters.begin(); it!=filters.end(); ++it)
{
KXmlCommand *f = m_activefilters.find(*it);
if (f)
f->getOptions(opts, incldef);
}
if (filters.count() > 0 || incldef)
{
opts["_kde-filters"] = filters.join(",");
}
}
TQStringList KPFilterPage::activeList()
{
TQStringList list;
TQListViewItem *item = m_view->firstChild();
while (item)
{
list.append(item->text(1));
item = item->nextSibling();
}
return list;
}
KXmlCommand* KPFilterPage::currentFilter()
{
KXmlCommand *filter(0);
if (m_view->selectedItem())
filter = m_activefilters.find(m_view->selectedItem()->text(1));
return filter;
}
void KPFilterPage::checkFilterChain()
{
TQListViewItem *item = m_view->firstChild();
bool ok(true);
m_valid = true;
while (item)
{
item->setPixmap(0, (ok ? SmallIcon("filter") : SmallIcon("filterstop")));
KXmlCommand *f1 = m_activefilters.find(item->text(1));
if (f1 && item->nextSibling())
{
KXmlCommand *f2 = m_activefilters.find(item->nextSibling()->text(1));
if (f2)
{
if (!f2->acceptMimeType(f1->mimeType()))
{
item->setPixmap(0, SmallIcon("filterstop"));
ok = false;
m_valid = false;
}
else
ok = true;
}
}
item = item->nextSibling();
}
}
bool KPFilterPage::isValid(TQString& msg)
{
if (!m_valid)
{
msg = i18n("<p>The filter chain is wrong. The output format of at least one filter is not supported by its follower. See <b>Filters</b> tab for more information.</p>");
}
return m_valid;
}
void KPFilterPage::updateInfo()
{
TQString txt;
KXmlCommand *f = currentFilter();
if (f)
{
TQString templ("<b>%1:</b> %2<br>");
txt.append(templ.arg(i18n("Name")).arg(f->name()));
txt.append(templ.arg(i18n("Requirements")).arg(f->requirements().join(", ")));
txt.append(templ.arg(i18n("Input")).arg(f->inputMimeTypes().join(", ")));
txt.append(templ.arg(i18n("Output")).arg(f->mimeType()));
if ( !f->comment().isEmpty() )
txt.append( "<br>" ).append( f->comment() );
}
m_info->setText(txt);
}
#include "kpfilterpage.moc"
|