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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <svx/svdotext.hxx>
#include <svx/svdoutl.hxx>
#include <editeng/outlobj.hxx>
#include <editeng/editobj.hxx>
#include <editeng/overflowingtxt.hxx>
#include <textchainflow.hxx>
#include <sal/log.hxx>
TextChainFlow::TextChainFlow(SdrTextObj *pChainTarget)
: mpTargetLink(pChainTarget)
{
SAL_INFO("svx.chaining", "[TEXTCHAINFLOW] Creating a new TextChainFlow");
mpTextChain = mpTargetLink->GetTextChain();
mpNextLink = mpTargetLink->GetNextLinkInChain();
bUnderflow = bOverflow = false;
mbOFisUFinduced = false;
mpOverflChText = nullptr;
mpUnderflChText = nullptr;
mbPossiblyCursorOut = false;
}
TextChainFlow::~TextChainFlow()
{
mpOverflChText.reset();
mpUnderflChText.reset();
}
void TextChainFlow::impSetFlowOutlinerParams(SdrOutliner *, SdrOutliner *)
{
// Nothing to do if not in editing mode
}
/*
* Check for overflow in the state of pFlowOutl.
* If pParamOutl is not NULL sets some parameters from there.
* This is useful in case the outliner is not set for overflow
* (e.g. in editing mode we check for overflow in drawing outl but
* parameters come from editing outliner)
*/
void TextChainFlow::impCheckForFlowEvents(SdrOutliner *pFlowOutl, SdrOutliner *pParamOutl)
{
bool bOldUpdateMode = pFlowOutl->IsUpdateLayout();
// XXX: This could be reorganized moving most of this stuff inside EditingTextChainFlow
if (pParamOutl != nullptr)
{
// We need this since it's required to check overflow
pFlowOutl->SetUpdateLayout(true);
// XXX: does this work if you do it before setting the text? Seems so.
impSetFlowOutlinerParams(pFlowOutl, pParamOutl);
}
bool bIsPageOverflow = pFlowOutl->IsPageOverflow();
// NOTE: overflow and underflow cannot be both true
bOverflow = bIsPageOverflow && mpNextLink;
bUnderflow = !bIsPageOverflow && mpNextLink && mpNextLink->HasText();
// Get old state on whether to merge para-s or not
// NOTE: We handle UF/OF using the _old_ state. The new one is simply saved
bool bMustMergeParaAmongLinks = GetTextChain()->GetIsPartOfLastParaInNextLink(mpTargetLink);
// Set (Non)OverflowingTxt here (if any)
// If we had an underflow before we have to deep merge paras anyway
bool bMustMergeParaOF = bMustMergeParaAmongLinks || mbOFisUFinduced;
mpOverflChText.reset( bOverflow ?
new OFlowChainedText(pFlowOutl, bMustMergeParaOF) :
nullptr );
// Set current underflowing text (if any)
mpUnderflChText.reset( bUnderflow ?
new UFlowChainedText(pFlowOutl, bMustMergeParaAmongLinks) :
nullptr );
// Reset update mode // Reset it here because we use WriteRTF (needing updatemode = true) in the two constructors above
if (!bOldUpdateMode) // Reset only if the old value was false
pFlowOutl->SetUpdateLayout(bOldUpdateMode);
// NOTE: Must be called after mp*ChText and b*flow have been set but before mbOFisUFinduced is reset
impUpdateCursorInfo();
// To check whether an overflow is underflow induced or not (useful in cursor checking)
mbOFisUFinduced = bUnderflow;
}
void TextChainFlow::impUpdateCursorInfo()
{
// XXX: Maybe we can get rid of mbOFisUFinduced by not allowing handling of more than one event by the same TextChainFlow
// if this is not an OF triggered during an UF
mbPossiblyCursorOut = bOverflow;
if(mbPossiblyCursorOut ) {
maOverflowPosSel = mpOverflChText->GetOverflowPointSel();
ESelection aSelAtUFTime = GetTextChain()->GetPreChainingSel(GetLinkTarget());
// Might be an invalid selection if the cursor at UF time was before
// the (possibly UF-induced) Overflowing point but we don't use it in that case
maPostChainingSel = ESelection(aSelAtUFTime.start.nPara-maOverflowPosSel.start.nPara,
aSelAtUFTime.start.nIndex-maOverflowPosSel.start.nIndex );
}
// XXX: It may not be necessary anymore to keep this method separated from EditingTextChainFlow::impBroadcastCursorInfo
}
void TextChainFlow::CheckForFlowEvents(SdrOutliner *pFlowOutl)
{
impCheckForFlowEvents(pFlowOutl, nullptr);
}
bool TextChainFlow::IsOverflow() const
{
return bOverflow;
}
bool TextChainFlow::IsUnderflow() const
{
return bUnderflow;
}
// XXX: In editing mode you need to get "underflowing" text from editing outliner, so it's kinda separated from the drawing one!
// XXX:Would it be possible to unify underflow and its possibly following overflow?
void TextChainFlow::ExecuteUnderflow(SdrOutliner *pOutl)
{
//GetTextChain()->SetNilChainingEvent(mpTargetLink, true);
// making whole text
// merges underflowing text with the one in the next box
std::optional<OutlinerParaObject> pNewText = mpUnderflChText->CreateMergedUnderflowParaObject(pOutl, mpNextLink->GetOutlinerParaObject());
// Set the other box empty; it will be replaced by the rest of the text if overflow occurs
if (!mpTargetLink->GetPreventChainable())
mpNextLink->NbcSetOutlinerParaObject(pOutl->GetEmptyParaObject());
// We store the size since NbcSetOutlinerParaObject can change it
//Size aOldSize = pOutl->GetMaxAutoPaperSize();
// This should not be done in editing mode!! //XXX
if (!mpTargetLink->IsInEditMode())
{
mpTargetLink->NbcSetOutlinerParaObject(pNewText);
}
// Restore size and set new text
//pOutl->SetMaxAutoPaperSize(aOldSize); // XXX (it seems to be working anyway without this)
pOutl->SetText(*pNewText);
//GetTextChain()->SetNilChainingEvent(mpTargetLink, false);
// Check for new overflow
CheckForFlowEvents(pOutl);
}
void TextChainFlow::ExecuteOverflow(SdrOutliner *pNonOverflOutl, SdrOutliner *pOverflOutl)
{
//GetTextChain()->SetNilChainingEvent(mpTargetLink, true);
// Leave only non overflowing text
impLeaveOnlyNonOverflowingText(pNonOverflOutl);
// Transfer of text to next link
if (!mpTargetLink->GetPreventChainable() ) // we don't transfer text while dragging because of resizing
{
impMoveChainedTextToNextLink(pOverflOutl);
}
//GetTextChain()->SetNilChainingEvent(mpTargetLink, false);
}
void TextChainFlow::impLeaveOnlyNonOverflowingText(SdrOutliner *pNonOverflOutl)
{
std::optional<OutlinerParaObject> pNewText = mpOverflChText->RemoveOverflowingText(pNonOverflOutl);
SAL_INFO("svx.chaining", "[TEXTCHAINFLOW - OF] SOURCE box set to "
<< pNewText->GetTextObject().GetParagraphCount() << " paras");
// adds it to current outliner anyway (useful in static decomposition)
pNonOverflOutl->SetText(*pNewText);
mpTargetLink->NbcSetOutlinerParaObject(std::move(pNewText));
// For some reason the paper size is lost after last instruction, so we set it.
pNonOverflOutl->SetPaperSize(Size(pNonOverflOutl->GetPaperSize().Width(),
pNonOverflOutl->GetTextHeight()));
}
void TextChainFlow::impMoveChainedTextToNextLink(SdrOutliner *pOverflOutl)
{
// prevent copying text in same box
if ( mpNextLink == mpTargetLink ) {
SAL_INFO("svx.chaining", "[CHAINING] Trying to copy text for next link in same object");
return;
}
std::optional<OutlinerParaObject> pNewText =
mpOverflChText->InsertOverflowingText(pOverflOutl,
mpNextLink->GetOutlinerParaObject());
SAL_INFO("svx.chaining", "[TEXTCHAINFLOW - OF] DEST box set to "
<< pNewText->GetTextObject().GetParagraphCount() << " paras");
if (pNewText)
mpNextLink->NbcSetOutlinerParaObject(std::move(pNewText));
// Set Deep Merge status
SAL_INFO("svx.chaining", "[DEEPMERGE] Setting deepMerge to "
<< mpOverflChText->IsLastParaInterrupted());
GetTextChain()->SetIsPartOfLastParaInNextLink(
mpTargetLink,
mpOverflChText->IsLastParaInterrupted());
}
SdrTextObj *TextChainFlow::GetLinkTarget() const
{
return mpTargetLink;
}
TextChain *TextChainFlow::GetTextChain() const
{
return mpTextChain;
}
// EditingTextChainFlow
EditingTextChainFlow::EditingTextChainFlow(SdrTextObj *pLinkTarget) :
TextChainFlow(pLinkTarget)
{
SAL_INFO("svx.chaining", "[TEXTCHAINFLOW] Creating a new EditingTextChainFlow");
}
void EditingTextChainFlow::CheckForFlowEvents(SdrOutliner *pFlowOutl)
{
// if this is editing outliner no need to set parameters
if (pFlowOutl == GetLinkTarget()->mpEditingOutliner)
impCheckForFlowEvents(pFlowOutl, nullptr);
else
impCheckForFlowEvents(pFlowOutl, GetLinkTarget()->mpEditingOutliner);
// Broadcast events for cursor handling
impBroadcastCursorInfo();
}
void EditingTextChainFlow::impLeaveOnlyNonOverflowingText(SdrOutliner *pNonOverflOutl)
{
mpOverflChText->RemoveOverflowingText(pNonOverflOutl);
//impSetTextForEditingOutliner(pNewText); //XXX: Don't call it since we do everything with NonOverflowingText::ToParaObject // XXX: You may need this for Underflow
// XXX: I'm not sure whether we need this (after all operations such as Paste don't change this - as far as I understand)
//GetLinkTarget()->NbcSetOutlinerParaObject(pNewText);
}
void EditingTextChainFlow::impSetFlowOutlinerParams(SdrOutliner *pFlowOutl, SdrOutliner *pParamOutl)
{
// Set right size for overflow
pFlowOutl->SetMaxAutoPaperSize(pParamOutl->GetMaxAutoPaperSize());
pFlowOutl->SetMinAutoPaperSize(pParamOutl->GetMinAutoPaperSize());
pFlowOutl->SetPaperSize(pParamOutl->GetPaperSize());
}
void EditingTextChainFlow::impBroadcastCursorInfo() const
{
ESelection aPreChainingSel = GetTextChain()->GetPreChainingSel(GetLinkTarget()) ;
// Test whether the cursor is out of the box.
bool bCursorOut = mbPossiblyCursorOut && maOverflowPosSel < aPreChainingSel;
// NOTE: I handled already the stuff for the comments below. They will be kept temporarily till stuff settles down.
// Possibility: 1) why don't we stop passing the actual event to the TextChain and instead we pass
// the overflow pos and mbPossiblyCursorOut
// 2) We pass the current selection before anything happens and we make impBroadcastCursorInfo compute it.
if (bCursorOut) {
//maCursorEvent = CursorChainingEvent::TO_NEXT_LINK;
GetTextChain()->SetPostChainingSel(GetLinkTarget(), maPostChainingSel);
GetTextChain()->SetCursorEvent(GetLinkTarget(), CursorChainingEvent::TO_NEXT_LINK);
} else {
//maCursorEvent = CursorChainingEvent::UNCHANGED;
GetTextChain()->SetPostChainingSel(GetLinkTarget(), aPreChainingSel);
GetTextChain()->SetCursorEvent(GetLinkTarget(), CursorChainingEvent::UNCHANGED);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|