/
PText.cpp
6770 lines (5634 loc) · 143 KB
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PText.cpp
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/* $Id$
Copyright 1996, 1997, 1998, 2002
Hekkelman Programmatuur B.V. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
must display the following acknowledgement:
This product includes software developed by Hekkelman Programmatuur B.V.
4. The name of Hekkelman Programmatuur B.V. may not be used to endorse or
promote products derived from this software without specific prior
written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Created: 09/19/1997
*/
#include "pe.h"
#include <arpa/inet.h>
#include <signal.h>
#include <PrintJob.h>
#include <String.h>
#include "PText.h"
#include "CFontStyle.h"
#include "Utils.h"
#include "PStatus.h"
#include "PApp.h"
#include "PCmd.h"
#include "CLanguageInterface.h"
#include "PDoc.h"
#include "PExec.h"
#include "PErrorWindow.h"
#include "PToolBar.h"
#include "PMessages.h"
#include "HPreferences.h"
#include "HError.h"
#include "HAppResFile.h"
#include "HStream.h"
#include "CAlloca.h"
#include "HButtonBar.h"
#include "PItalicMenuItem.h"
#include "PSplitter.h"
#include "PJumpToProcedure.h"
#include "CGlossary.h"
#include "KeyBindings.h"
#include "CFindDialog.h"
#include "MAlert.h"
#include "HDefines.h"
#include "HColorUtils.h"
#include "ResourcesMenus.h"
#include "Prefs.h"
#if defined(__BEOS__) && defined(__INTEL__)
// [zooey]: BeOS' glib is messing up iscntrl, as it reports all values>127 as
// being control-chars, too (but they are *not*). We fix that:
#undef iscntrl
#define iscntrl(c) ((((unsigned char)(c))<128) && __isctype((c), _IScntrl))
#endif
using std::min;
using std::max;
PText* PText::sfDragSource = NULL;
struct PSettings {
BRect wpos;
float vscroll, hscroll;
long anchor;
long caret;
long flags;
float fontsize;
unsigned char tabstops;
unsigned char encoding;
};
enum {
flShowTabs,
flSoftWrap,
flSyntaxColoring
};
class WordState {
public:
WordState(int32 key, bool subWord = false, bool mouseSelect = false)
: fKey(key)
, fSubWord(subWord)
, fSkip(!mouseSelect)
, fLastIsUpperCase(false)
, fUnicodeClass(-1)
{
}
bool BelongsToWord(uint32 unicode)
{
// If we start with !fSkip (in case of mouse select), we need to
// initialize the class of the first character here
if (!fSkip && fUnicodeClass == -1)
FirstChar(unicode);
// We skip everything until the first allowed character, then we only
// accept allowed characters of the same class as the first accepted
// character
if (!AllowedChar(unicode) == fSkip
&& (fSkip || fUnicodeClass == mclass(unicode)))
{
if (fSubWord && !fSkip && unicode < 128)
{
bool isUpperCase = isupper(unicode);
if ((fKey == B_RIGHT_ARROW && isUpperCase && !fLastIsUpperCase)
|| (fKey == B_LEFT_ARROW && !isUpperCase && fLastIsUpperCase))
return false;
fLastIsUpperCase = isUpperCase;
}
return true;
}
else if (fSkip)
{
// the character we got here is the first one of our word
FirstChar(unicode);
fSkip = false;
return true;
}
return false;
}
private:
void FirstChar(uint32 unicode)
{
fUnicodeClass = mclass(unicode);
// ToDo: sub-word finding only works for single-byte words
if (unicode < 128)
fLastIsUpperCase = isupper(unicode);
else
fLastIsUpperCase = fKey == B_RIGHT_ARROW;
}
bool AllowedChar(uint32 unicode)
{
if (unicode == '_')
return !fSubWord;
return isalnum_uc(unicode);
}
int32 fKey;
bool fSubWord;
bool fSkip;
bool fLastIsUpperCase;
int32 fUnicodeClass;
};
// #pragma mark - class PText
PText::PText(BRect frame, PTextBuffer& txt, BScrollBar *bars[], const char *ext)
: BView(frame, "text view", B_FOLLOW_ALL_SIDES, B_ASYNCHRONOUS_CONTROLS |
B_WILL_DRAW | B_NAVIGABLE | B_PULSE_NEEDED | B_FRAME_EVENTS)
, fText(txt)
, fSplitCursorShown(false)
, fFontKind(kNormalFont)
{
fAnchor = fCaret = 0;
fBlockSelect = false;
fWalkOffset = 3.0;
fNextCaret = 0;
fCaretVisible = false;
fCaretDrawn = false;
fStatus = NULL;
fLastCommand = NULL;
fExec = NULL;
fWindowActive = false;
fMetrics = NULL;
fDropPos = -1;
fDragStart = -1;
fSyntaxColoring = gSyntaxColoring;
fCWD = NULL;
fShowInvisibles = gPrefs->GetPrefInt(prf_I_ShowInvisibles, 0);
fUsingDefaultLanguage = true;
fLangIntf = NULL;
fLastMouseTime = 0;
fIncSearch = 0;
fMark = -1;
fNrArgument = 0;
fAppendNextCut = false;
fLastKillPoint = -1;
fLastSavedStateCmd = NULL;
fPrintSettings = NULL;
fSoftWrap = gPrefs->GetPrefInt(prf_I_SoftWrap, false);
fWrapType = gPrefs->GetPrefInt(prf_I_WrapType, 3);
fWrapWidth = gPrefs->GetPrefInt(prf_I_WrapCol, 80);
fSplitAt = 0;
fActivePart = 2;
fVScrollBar1 = bars[0];
fVScrollBar2 = bars[1];
fHScrollBar = bars[2];
fHScrollBar->SetTarget(this);
fVScrollBar1->SetTarget(this);
fVScrollBar2->SetTarget(this);
gPrefs->InitTextFont(&fFont);
SetViewColor(gColor[kColorLow]);
fTabStops = gPrefs->GetPrefInt(prf_I_SpacesPerTab, 4);
fLineMap = NULL;
fLineView = NULL;
SetDefaultLanguageByExtension(ext);
fMainPopUp = static_cast<BPopUpMenu*>(HResources::GetMenu(rid_Popu_CtxText, true));
FailNil(fMainPopUp);
fMainPopUp->SetFont(be_plain_font);
fMainPopUp->SetRadioMode(false);
fHighlightCursor = -1;
fHighlightChangeCounter = -1;
ReInit();
} /* PText::PText */
void PText::ReInit()
{
SetFont(&fFont);
font_family ff;
font_style fs;
fFont.GetFamilyAndStyle(&ff, &fs);
fFont.GetHeight(&fFH);
fLineHeight = ceil(fFH.ascent + fFH.descent + fFH.leading);
fMetrics = CFontStyle::Locate(ff, fs, fFont.Size());
fTabWidth = TabStops() * StringWidth(" ", 1);
fDefaultCharWidth = StringWidth("m", 1);
if (Window())
{
PToolBar *toolBar = Doc()->ToolBar();
if (toolBar) toolBar->SetTabWidth(fTabWidth, TabStops());
}
RecalculateLineBreaks();
AdjustScrollBars();
SetupBitmap();
} /* PText::ReInit */
PText::~PText()
{
FlushUndo();
if (fExec)
fExec->Cancel();
free(fCWD);
delete fMainPopUp;
delete fLineMap;
delete fPrintSettings;
} /* PText::~PText */
void PText::SetDefaultLanguageByExtension(const char *extension)
{
if (!fUsingDefaultLanguage)
return;
CLanguageInterface *language = CLanguageInterface::FindByExtension(extension);
if (language != fLangIntf)
{
fLangIntf = language;
TouchLines(0);
RestyleDirtyLines(0);
Invalidate();
}
} /* PText::SetDefaultLanguageByExtension */
int32 PText::Language() const
{
return CLanguageInterface::GetIndex(fLangIntf);
} // PText::Language
void PText::SetLanguage(int32 index)
{
CLanguageInterface *i = (index >= 0) ? CLanguageInterface::FindIntf(index) : CLanguageInterface::FindByExtension("");
if (i != fLangIntf)
{
fLangIntf = i;
TouchLines(0);
RestyleDirtyLines(0);
Invalidate();
fUsingDefaultLanguage = false;
}
} /* PText::SetLanguage */
void PText::SetupBitmap()
{
if (fLineMap) delete fLineMap;
BRect r(0, 0, Bounds().Width(), fLineHeight - 1);
fLineMap = new BBitmap(r, B_RGB_32_BIT, true);
fLineView = new BView(r, "line view", 0, B_WILL_DRAW);
if (fLineMap->Lock())
{
fLineMap->AddChild(fLineView);
fLineView->SetViewColor(ViewColor());
fLineView->SetLowColor(ViewColor());
fLineView->SetFont(&fFont);
fLineMap->Unlock();
}
} /* PText::SetupBitmap */
void PText::SetText(const char *text, size_t size)
{
if (fText.Size()) fText.Delete(0, fText.Size());
fText.Insert(text, size, 0);
RecalculateLineBreaks();
Invalidate();
FlushUndo();
} /* PText::SetText */
void PText::AttachedToWindow()
{
Window()->SetPulseRate(100000);
fMainPopUp->SetTargetForItems(this);
fBounds = Bounds();
Doc()->ButtonBar()->SetOn(msg_SoftWrap, fSoftWrap);
ShowTabStops(gPrefs->GetPrefInt(prf_I_ShowTabs, false));
} /* PText::AttachedToWindow */
const char* PText::Text()
{
return fText.Buffer();
} /* PText::Text */
int32 PText::Size() const
{
return fText.Size();
} /* PText::Size */
void PText::SetDirty(bool dirty)
{
bool wasDirty = Doc()->IsDirty();
if (wasDirty != dirty)
Doc()->SetDirty(dirty);
} /* PText::SetDirty */
bool PText::IsDirty()
{
return Doc()->IsDirty();
} /* PText::IsDirty */
void PText::GetSelectedText(char*& s, bool extend)
{
if (fAnchor != fCaret)
{
if (extend && !fBlockSelect)
{
int32 end = max(fCaret, fAnchor);
int32 begin = min(fCaret, fAnchor);
if (fText[end] == '.')
{
end++;
while (isalpha(fText[end]))
end++;
ChangeSelection(begin, end);
}
}
if (fBlockSelect)
CopyBlock(s, min(fCaret, fAnchor), max(fCaret, fAnchor));
else
{
int32 size = abs(fCaret - fAnchor);
s = (char *)malloc(size + 1);
FailNil(s);
fText.Copy(s, min(fCaret, fAnchor), size);
s[size] = 0;
}
}
else
s = NULL;
} /* PText::GetSelectedText */
void PText::Select(int32 anchor, int32 caret, bool update, bool block)
{
if (update)
{
ChangeSelection(min(fText.Size(), max((int32)0, anchor)),
min(fText.Size(), max((int32)0, caret)), block);
if (fStatus) fStatus->SetOffset(fCaret);
}
else
{
fAnchor = anchor;
fCaret = caret;
fBlockSelect = block;
}
} /* PText::Select */
void PText::SetStatus(PStatus *status)
{
fStatus = status;
// fStatus->SetHScroll(3);
// fStatus->SetTabWidth(fTabWidth, TabStops());
} /* PText::SetStatus */
void PText::WindowActivated(bool active)
{
if (fWindowActive != active)
{
if (!active) HideCaret();
fWindowActive = active;
HiliteSelection();
}
if (active)
AdjustScrollBars();
} /* PText::WindowActivated */
void PText::ApplySettings(const BMessage& msg)
{
int32 i;
float f;
const char *s1, *s2;
bool b;
if (msg.FindInt32("tabstop", &i) == B_OK)
fTabStops = i;
if (msg.FindBool("show invisibles", &b) == B_OK)
fShowInvisibles = b;
if (gRestoreFont)
{
if (msg.FindBool("show tabs", &b) == B_OK)
ShowTabStops(b);
if (msg.FindInt32("fontkind", &i) == B_OK) {
fFontKind = i;
}
if (fFontKind == kIndividualFont) {
if (msg.FindFloat("fontsize", &f) == B_OK)
fFont.SetSize(f);
if (msg.FindString("fontfamily", &s1) == B_OK
&& msg.FindString("fontstyle", &s2) == B_OK)
fFont.SetFamilyAndStyle(s1, s2);
} else {
FontChanged(false);
}
if (msg.FindBool("syntaxcoloring", &b) == B_OK)
fSyntaxColoring = b;
if (msg.FindBool("softwrap", &b) == B_OK)
fSoftWrap = b;
else
fSoftWrap = gPrefs->GetPrefInt(prf_I_SoftWrap, 0);
Doc()->ButtonBar()->SetOn(msg_SoftWrap, fSoftWrap);
if (msg.FindInt32("wraptype", &i) == B_OK)
fWrapType = i;
if (msg.FindInt32("wrapwidth", &i) == B_OK)
fWrapWidth = i;
}
ReInit();
if (gRestoreSelection)
{
int32 anchor = 0, caret = 0;
bool block = false;
msg.FindInt32("anchor", &anchor);
msg.FindInt32("caret", &caret);
msg.FindBool("block", &block);
fStoredCaret = caret;
Select(anchor, caret, true, block);
fWalkOffset = Offset2Position(fCaret).x;
}
if (gRestoreScrollbar)
{
if (msg.FindFloat("vscroll", &f) == B_OK)
fVScrollBar2->SetValue(f);
if (msg.FindFloat("hscroll", &f) == B_OK)
fHScrollBar->SetValue(f);
}
if (gRestoreCWD && msg.FindString("cwd", &s1) == B_OK)
{
if (fCWD) free(fCWD);
fCWD = strdup(s1);
}
if (msg.FindString("language", &s1) == B_OK)
{
CLanguageInterface *language = CLanguageInterface::FindByName(s1);
if (language != NULL)
fUsingDefaultLanguage = false;
SetLanguage(CLanguageInterface::GetIndex(language));
}
} /* PText::SetSettings */
void PText::CollectSettings(BMessage& msg)
{
if (TabStops() != gPrefs->GetPrefInt(prf_I_SpacesPerTab, 4))
FailOSErr(msg.AddInt32("tabstop", TabStops()));
FailOSErr(msg.AddBool("show tabs", Doc()->ToolBar()->ShowsTabs()));
FailOSErr(msg.AddBool("show invisibles", fShowInvisibles));
FailOSErr(msg.AddInt32("fontkind", fFontKind));
if (fFontKind == kIndividualFont) {
font_family ff;
font_style fs;
fFont.GetFamilyAndStyle(&ff, &fs);
FailOSErr(msg.AddString("fontfamily", ff));
FailOSErr(msg.AddString("fontstyle", fs));
FailOSErr(msg.AddFloat("fontsize", fFont.Size()));
}
FailOSErr(msg.AddInt32("anchor", fAnchor));
FailOSErr(msg.AddInt32("caret", fCaret));
FailOSErr(msg.AddFloat("vscroll", fVScrollBar2->Value()));
FailOSErr(msg.AddFloat("hscroll", fHScrollBar->Value()));
FailOSErr(msg.AddBool("syntaxcoloring", fSyntaxColoring));
FailOSErr(msg.AddInt32("encoding", Doc()->Encoding()));
FailOSErr(msg.AddInt32("line breaks", Doc()->LineEndType()));
FailOSErr(msg.AddBool("softwrap", fSoftWrap));
if (fSoftWrap)
{
FailOSErr(msg.AddInt32("wraptype", fWrapType));
FailOSErr(msg.AddInt32("wrapwidth", fWrapWidth));
}
if (Language() /*&& !fUsingDefaultLanguage*/)
FailOSErr(msg.AddString("language", fLangIntf->Name()));
if (fCWD) FailOSErr(msg.AddString("cwd", fCWD));
} /* PText::GetSettings */
void PText::GetSettingsMW(BPositionIO& set)
{
long anchor, caret, tabs, flags, fontsize;
font_family font;
font_style style;
anchor = min(fAnchor, fCaret);
caret = max(fAnchor, fCaret);
tabs = TabStops();
flags = 0x01000000;
fontsize = (long)fFont.Size();
fFont.GetFamilyAndStyle(&font, &style);
set << B_BENDIAN_TO_HOST_INT32(anchor) << B_BENDIAN_TO_HOST_INT32(caret) << B_BENDIAN_TO_HOST_INT32(tabs) << B_BENDIAN_TO_HOST_INT32(flags) << B_BENDIAN_TO_HOST_INT32(fontsize);
set.Write(font, sizeof(font));
set.Write(style, sizeof(style));
} /* PText::GetSettingsMW */
void PText::SetSettingsMW(BPositionIO& set)
{
long anchor, caret, tabs, flags, fontsize;
font_family font;
font_style style;
try
{
set >> anchor >> caret >> tabs >> flags >> fontsize;
if (set.Read(font, sizeof(font)) != sizeof(font) ||
set.Read(style, sizeof(style)) != sizeof(style))
THROW(("IO Error"));
if (gRestoreFont)
{
if (tabs)
fTabStops = B_BENDIAN_TO_HOST_INT32(tabs);
if (*font && *style)
fFont.SetFamilyAndStyle(font, style);
if (fontsize)
fFont.SetSize((float)(B_BENDIAN_TO_HOST_INT32(fontsize)));
}
ReInit();
if (gRestoreSelection)
{
Select(B_BENDIAN_TO_HOST_INT32(anchor), B_BENDIAN_TO_HOST_INT32(caret), true, false);
fWalkOffset = Offset2Position(fCaret).x;
}
}
catch (...) {}
} /* PText::SetSettingsMW */
void PText::SetFontKind(int32 kind)
{
if (fFontKind == kind)
return;
fFontKind = kind;
FontChanged();
} /* PText::SetFontKind */
void PText::FontChanged(bool reInit)
{
const char* fontFamilyKey = NULL;
const char* fontStyleKey = NULL;
const char* fontSizeKey = NULL;
switch (fFontKind) {
case kAltFont:
fontFamilyKey = prf_S_AltFontFamily;
fontStyleKey = prf_S_AltFontStyle;
fontSizeKey = prf_D_AltFontSize;
break;
case kNormalFont:
fontFamilyKey = prf_S_FontFamily;
fontStyleKey = prf_S_FontStyle;
fontSizeKey = prf_D_FontSize;
break;
case kIndividualFont:
default:
break;
}
if (!fontFamilyKey) {
// don't adopt font from preferences
return;
}
BFont font;
font.SetFamilyAndStyle(gPrefs->GetPrefString(fontFamilyKey),
gPrefs->GetPrefString(fontStyleKey));
font.SetSize(gPrefs->GetPrefDouble(fontSizeKey));
if (fFont != font) {
fFont = font;
if (reInit) {
ReInit();
Invalidate();
}
}
} /* PText::FontChanged */
int32 PText::FontKind() const
{
return fFontKind;
} /* PText::FontKind */
void PText::SelectLine(int32 lineNr)
{
if (lineNr < 0) lineNr = 0;
if (lineNr >= LineCount()) lineNr = LineCount() - 1;
int32 f = LineStart(lineNr);
int32 t = lineNr < LineCount() - 1 ? LineStart(lineNr + 1) : fText.Size();
ChangeSelection(f, t);
ScrollToCaret(true);
fStatus->SetOffset(fCaret);
} /* PText::SelectLine */
void PText::SetCaret(int32 newCaret)
{
HideCaret();
fStatus->SetOffset(fAnchor = fCaret = max((int32)0, min(newCaret, fText.Size())));
ScrollToCaret(false);
ShowCaret();
} /* PText::SetCaret */
void PText::SetMark(int32 offset)
{
if (fMark >= 0)
TouchLine(Offset2Line(fMark));
fMark = offset;
if (fMark >= 0)
TouchLine(Offset2Line(fMark));
} /* PText::SetMark */
void PText::SetSplitter(PSplitter *splitter)
{
fSplitter = splitter;
} /* PText::SetSplitter */
void PText::ShowTabStops(bool show)
{
PToolBar *toolBar = Doc()->ToolBar();
if (show != toolBar->ShowsTabs())
{
toolBar->SetShowsTabs(show);
if (show)
{
toolBar->ResizeBy(0, kTabStopHeight);
ResizeBy(0, -kTabStopHeight);
MoveBy(0, kTabStopHeight);
}
else
{
toolBar->ResizeBy(0, -kTabStopHeight);
ResizeBy(0, kTabStopHeight);
MoveBy(0, -kTabStopHeight);
}
toolBar->SetTabWidth(fTabWidth, TabStops());
toolBar->SetShowsTabs(show);
toolBar->Draw(toolBar->Bounds());
}
} /* PText::ShowTabStops */
void PText::SetCWD(const char *cwd)
{
if (!fCWD || strcmp(cwd, fCWD))
{
if (fCWD) free(fCWD);
fCWD = strdup(cwd);
}
} /* PText::SetCWD */
void PText::SetErrorWindow(PErrorWindow *window)
{
if (fErrorWindowMessenger.IsValid())
fErrorWindowMessenger.SendMessage(B_QUIT_REQUESTED);
fErrorWindowMessenger = BMessenger(window, window);
} /* PText::SetErrorWindow */
PDoc* PText::Doc() const
{
return dynamic_cast<PDoc*>(Window());
} // PText::Doc
// // #pragma mark - Wrap
int32 PText::FindLineBreak(int32 offset, bool hard)
{
if (fSoftWrap || hard)
{
if (fWrapType == 3)
{
int32 i, mark, w, sw, wl;
i = mark = offset;
w = sw = 0;
while (i < fText.Size())
{
int32 nb;
if (fText[i] == ' ')
nb = i;
else
nb = fLangIntf->FindNextWord(*this, i, wl);
int32 nw = w;
if (fText[nb] != ' ' && fText[nb] != '\n')
nw += wl + sw;
if (nw > fWrapWidth)
{
if (w > 0 || sw > 0)
return mark;
else
{
do
{
i += fText.CharLen(i);
w++;
}
while (w < fWrapWidth);
return i;
}
}
else if (fText[nb] == '\n')
{
return nb + 1;
}
else if (fText[nb] == '\t')
{
nw = (((w + sw) / TabStops()) + 1) * TabStops();
w = nw;
if (w > fWrapWidth)
return nb + 1;
i = mark = nb + 1;
sw = 0;
}
else if (fText[nb] == ' ')
{
mark = i = nb + 1;
sw++;
}
else
{
w += sw + wl;
mark = i = nb + 1;
sw = 0;
}
}
return fText.Size();
}
else
{
g_unit_t W = (fWrapType == 1 ? Bounds().Width() : 300) - 4;
int32 i, mark, wl;
float w, sw, ww;
i = mark = offset;
w = sw = ww = 0;
while (i < fText.Size())
{
int32 nb;
if (fText[i] == ' ')
nb = i;
else
{
nb = fLangIntf->FindNextWord(*this, i, wl);
ww = TextWidth(i, nb - i + 1);
}
float nw = w;
if (fText[nb] != ' ' && fText[nb] != '\n')
nw += ww + sw;
if (nw > W)
{
if (w > 0 || sw > 0)
return mark;
else
{
ww = 0;
do
{
int32 l = fText.CharLen(i);
ww += TextWidth(i, l);
i += l;
}
while (ww < W);
return i;
}
}
else if (fText[nb] == '\n')
{
return nb + 1;
}
else if (fText[nb] == '\t')
{
int32 t = (int)floor((w + sw) / fTabWidth) + 1;
w = (rint(t * fTabWidth) > rint(w) ? t * fTabWidth : (t + 1) * fTabWidth);
if (w > W)
{
return nb + 1;
}
i = mark = nb + 1;
sw = 0;
}
else if (fText[nb] == ' ')
{
mark = i = nb + 1;
sw += fMetrics->CharWidth(" ");
}
else
{
w += sw + ww;
mark = i = nb + 1;
sw = 0;
}
}
return fText.Size();
}
}
else // no softwrapping
{
int32 i = offset - 1;
while (++i < fText.Size())
{
if (fText[i] == '\n')
return i + 1;
}
return fText.Size();
}
} /* PText::FindLineBreak */
int32 PText::RewrapLines(int32 from, int32 to, bool hard)
{
int32 offset, lb, fl, dy;
// first remove invalid linebreaks
fl = min(Offset2Line(from), LineCount() - 1);
VLineInfo::iterator ls, le;
ls = fLineInfo.begin() + fl;
while (ls != fLineInfo.begin() && (*ls).nl == false)
ls--;
/*
if (ls == fLineInfo.begin())
(*ls).dirty = true;
*/
le = ls + 1;
while (le != fLineInfo.end() && (*le).start < to)
le++;
while (le != fLineInfo.end() && (*le).nl == false)
le++;
if (le == fLineInfo.end())
to = fText.Size();
else
to = (*le).start;
if (ls + 1 != le)
{
dy = (ls + 1) - le;
fLineInfo.erase(ls + 1, le);
}
else
dy = 0;
le = ls + 1;
// then determine the new ones
lb = (*ls).start;
offset = FindLineBreak(lb, hard);
while (offset < to)
{
le = fLineInfo.insert(le, LineInfo(offset, 0, fText[offset - 1] == '\n')) + 1;
dy++;
lb = offset;
offset = FindLineBreak(offset, hard);
}
if (offset > 0 &&
offset == fText.Size() &&
fText[--offset] == '\n' &&