286 lines
11 KiB
C++
286 lines
11 KiB
C++
/*
|
|
* Dillo Widget
|
|
*
|
|
* Copyright 2005-2007, 2012-2013 Sebastian Geerken <sgeerken@dillo.org>
|
|
*
|
|
* (Parts of this file were originally part of textblock.cc.)
|
|
*
|
|
* 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 3 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/>.
|
|
*/
|
|
|
|
#include "textblock.hh"
|
|
#include "../lout/msg.h"
|
|
#include "../lout/misc.hh"
|
|
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
|
|
using namespace lout;
|
|
|
|
namespace dw {
|
|
|
|
Textblock::TextblockIterator::TextblockIterator (Textblock *textblock,
|
|
core::Content::Type mask,
|
|
bool atEnd):
|
|
OOFAwareWidgetIterator (textblock, mask, atEnd, textblock->words->size ())
|
|
{
|
|
}
|
|
|
|
Textblock::TextblockIterator
|
|
*Textblock::TextblockIterator::createWordIndexIterator (Textblock *textblock,
|
|
core::Content::Type
|
|
mask,
|
|
int wordIndex)
|
|
{
|
|
TextblockIterator *tbIt = new TextblockIterator (textblock, mask, false);
|
|
tbIt->setValues (0, wordIndex);
|
|
return tbIt;
|
|
}
|
|
|
|
object::Object *Textblock::TextblockIterator::clone() const
|
|
{
|
|
TextblockIterator *tbIt =
|
|
new TextblockIterator ((Textblock*)getWidget(), getMask(), false);
|
|
cloneValues (tbIt);
|
|
return tbIt;
|
|
}
|
|
|
|
void Textblock::TextblockIterator::highlight (int start, int end,
|
|
core::HighlightLayer layer)
|
|
{
|
|
DBG_OBJ_ENTER_O ("iterator", 0, getWidget (), "TextblockIterator::highlight",
|
|
"..., %d, %d, %d", start, end, layer);
|
|
|
|
DBG_IF_RTFL {
|
|
misc::StringBuffer sb;
|
|
intoStringBuffer (&sb);
|
|
DBG_OBJ_MSGF_O ("iterator", 1, getWidget (), "iterator: %s",
|
|
sb.getChars ());
|
|
}
|
|
|
|
if (inFlow ()) {
|
|
DBG_OBJ_MSGF_O ("iterator", 1, getWidget (), "in-flow index: %d",
|
|
getInFlowIndex ());
|
|
|
|
Textblock *textblock = (Textblock*)getWidget();
|
|
int index = getInFlowIndex (), index1 = index, index2 = index;
|
|
|
|
int oldStartIndex = textblock->hlStart[layer].index;
|
|
int oldStartChar = textblock->hlStart[layer].nChar;
|
|
int oldEndIndex = textblock->hlEnd[layer].index;
|
|
int oldEndChar = textblock->hlEnd[layer].nChar;
|
|
|
|
if (textblock->hlStart[layer].index > textblock->hlEnd[layer].index) {
|
|
/* nothing is highlighted */
|
|
textblock->hlStart[layer].index = index;
|
|
textblock->hlEnd[layer].index = index;
|
|
}
|
|
|
|
if (textblock->hlStart[layer].index >= index) {
|
|
index2 = textblock->hlStart[layer].index;
|
|
textblock->hlStart[layer].index = index;
|
|
textblock->hlStart[layer].nChar = start;
|
|
}
|
|
|
|
if (textblock->hlEnd[layer].index <= index) {
|
|
index2 = textblock->hlEnd[layer].index;
|
|
textblock->hlEnd[layer].index = index;
|
|
textblock->hlEnd[layer].nChar = end;
|
|
}
|
|
|
|
DBG_OBJ_ARRATTRSET_NUM_O (textblock, "hlStart", layer, "index",
|
|
textblock->hlStart[layer].index);
|
|
DBG_OBJ_ARRATTRSET_NUM_O (textblock, "hlStart", layer, "nChar",
|
|
textblock->hlStart[layer].nChar);
|
|
DBG_OBJ_ARRATTRSET_NUM_O (textblock, "hlEnd", layer, "index",
|
|
textblock->hlEnd[layer].index);
|
|
DBG_OBJ_ARRATTRSET_NUM_O (textblock, "hlEnd", layer, "nChar",
|
|
textblock->hlEnd[layer].nChar);
|
|
|
|
if (oldStartIndex != textblock->hlStart[layer].index ||
|
|
oldStartChar != textblock->hlStart[layer].nChar ||
|
|
oldEndIndex != textblock->hlEnd[layer].index ||
|
|
oldEndChar != textblock->hlEnd[layer].nChar)
|
|
textblock->queueDrawRange (index1, index2);
|
|
} else {
|
|
highlightOOF (start, end, layer);
|
|
}
|
|
|
|
DBG_OBJ_LEAVE_O (getWidget ());
|
|
}
|
|
|
|
void Textblock::TextblockIterator::unhighlight (int direction,
|
|
core::HighlightLayer layer)
|
|
{
|
|
DBG_OBJ_ENTER_O ("iterator", 0, getWidget (),
|
|
"TextblockIterator/unhighlight", "..., %d, %d",
|
|
direction, layer);
|
|
|
|
DBG_IF_RTFL {
|
|
misc::StringBuffer sb;
|
|
intoStringBuffer (&sb);
|
|
DBG_OBJ_MSGF_O ("iterator", 1, getWidget (), "iterator: %s",
|
|
sb.getChars ());
|
|
}
|
|
|
|
if (inFlow ()) {
|
|
DBG_OBJ_MSGF_O ("iterator", 1, getWidget (), "in-flow index: %d",
|
|
getInFlowIndex ());
|
|
|
|
Textblock *textblock = (Textblock*)getWidget();
|
|
int index = getInFlowIndex (), index1 = index, index2 = index;
|
|
|
|
if (textblock->hlStart[layer].index > textblock->hlEnd[layer].index)
|
|
return;
|
|
|
|
int oldStartIndex = textblock->hlStart[layer].index;
|
|
int oldStartChar = textblock->hlStart[layer].nChar;
|
|
int oldEndIndex = textblock->hlEnd[layer].index;
|
|
int oldEndChar = textblock->hlEnd[layer].nChar;
|
|
|
|
if (direction == 0) {
|
|
index1 = textblock->hlStart[layer].index;
|
|
index2 = textblock->hlEnd[layer].index;
|
|
textblock->hlStart[layer].index = 1;
|
|
textblock->hlEnd[layer].index = 0;
|
|
} else if (direction > 0 && textblock->hlStart[layer].index <= index) {
|
|
index1 = textblock->hlStart[layer].index;
|
|
textblock->hlStart[layer].index = index + 1;
|
|
textblock->hlStart[layer].nChar = 0;
|
|
} else if (direction < 0 && textblock->hlEnd[layer].index >= index) {
|
|
index1 = textblock->hlEnd[layer].index;
|
|
textblock->hlEnd[layer].index = index - 1;
|
|
textblock->hlEnd[layer].nChar = INT_MAX;
|
|
}
|
|
|
|
DBG_OBJ_ARRATTRSET_NUM_O (textblock, "hlStart", layer, "index",
|
|
textblock->hlStart[layer].index);
|
|
DBG_OBJ_ARRATTRSET_NUM_O (textblock, "hlStart", layer, "nChar",
|
|
textblock->hlStart[layer].nChar);
|
|
DBG_OBJ_ARRATTRSET_NUM_O (textblock, "hlEnd", layer, "index",
|
|
textblock->hlEnd[layer].index);
|
|
DBG_OBJ_ARRATTRSET_NUM_O (textblock, "hlEnd", layer, "nChar",
|
|
textblock->hlEnd[layer].nChar);
|
|
|
|
if (oldStartIndex != textblock->hlStart[layer].index ||
|
|
oldStartChar != textblock->hlStart[layer].nChar ||
|
|
oldEndIndex != textblock->hlEnd[layer].index ||
|
|
oldEndChar != textblock->hlEnd[layer].nChar)
|
|
textblock->queueDrawRange (index1, index2);
|
|
} else
|
|
unhighlightOOF (direction, layer);
|
|
|
|
DBG_OBJ_LEAVE_O (getWidget ());
|
|
}
|
|
|
|
void Textblock::TextblockIterator::getAllocation (int start, int end,
|
|
core::Allocation *allocation)
|
|
{
|
|
if (inFlow ()) {
|
|
Textblock *textblock = (Textblock*)getWidget();
|
|
|
|
int index = getInFlowIndex ();
|
|
Word *word = textblock->words->getRef (index);
|
|
int firstWordOfLine, textOffset, lineYOffsetCanvas, lineBorderAscent;
|
|
|
|
int lineIndex = textblock->findLineOfWord (index);
|
|
|
|
// It may be that the line does not exist yet.
|
|
if (lineIndex != -1) {
|
|
// Line exists: simple.
|
|
Line *line = textblock->lines->getRef (lineIndex);
|
|
firstWordOfLine = line->firstWord;
|
|
textOffset = line->textOffset;
|
|
lineYOffsetCanvas = textblock->lineYOffsetCanvas (line);
|
|
lineBorderAscent = line->borderAscent;
|
|
} else {
|
|
// Line does not exist. Calculate the values in a similar way as in
|
|
// Textblock::addLine().
|
|
Line *prevLine = textblock->lines->size () > 0 ?
|
|
textblock->lines->getLastRef () : NULL;
|
|
firstWordOfLine = prevLine ? prevLine->lastWord + 1 : 0;
|
|
|
|
// The variable textOffset, defined below, is what Line::leftOffset
|
|
// will be for the next line; Line::textOffset itself cannot be
|
|
// calculated before the line is complete.
|
|
bool regardBorder =
|
|
textblock->mustBorderBeRegarded (textblock->lines->size ());
|
|
textOffset =
|
|
std::max (regardBorder ? textblock->newLineLeftBorder : 0,
|
|
textblock->boxOffsetX () + textblock->leftInnerPadding
|
|
+ (textblock->lines->size () == 0 ?
|
|
textblock->line1OffsetEff : 0));
|
|
|
|
lineYOffsetCanvas = textblock->yOffsetOfLineToBeCreated ();
|
|
|
|
lineBorderAscent = 0;
|
|
for (int i = firstWordOfLine; i < textblock->words->size (); i++) {
|
|
Word *w = textblock->words->getRef (i);
|
|
int borderAscent =
|
|
w->content.type == core::Content::WIDGET_IN_FLOW ?
|
|
w->size.ascent - w->content.widget->getStyle()->margin.top :
|
|
w->size.ascent;
|
|
lineBorderAscent = std::max (lineBorderAscent, borderAscent);
|
|
}
|
|
}
|
|
|
|
allocation->x = textblock->allocation.x + textOffset;
|
|
for (int i = firstWordOfLine; i < index; i++) {
|
|
Word *w = textblock->words->getRef(i);
|
|
allocation->x += w->size.width + w->effSpace;
|
|
}
|
|
if (start > 0 && word->content.type == core::Content::TEXT) {
|
|
allocation->x += textblock->textWidth (word->content.text, 0, start,
|
|
word->style,
|
|
word->flags & Word::WORD_START,
|
|
(word->flags & Word::WORD_END)
|
|
&& word->content.text[start]
|
|
== 0);
|
|
}
|
|
allocation->y = lineYOffsetCanvas + lineBorderAscent - word->size.ascent;
|
|
|
|
allocation->width = word->size.width;
|
|
if (word->content.type == core::Content::TEXT) {
|
|
int wordEnd = strlen(word->content.text);
|
|
|
|
if (start > 0 || end < wordEnd) {
|
|
end = std::min(end, wordEnd); /* end could be INT_MAX */
|
|
allocation->width =
|
|
textblock->textWidth (word->content.text, start, end - start,
|
|
word->style,
|
|
(word->flags & Word::WORD_START)
|
|
&& start == 0,
|
|
(word->flags & Word::WORD_END)
|
|
&& word->content.text[end] == 0);
|
|
}
|
|
}
|
|
allocation->ascent = word->size.ascent;
|
|
allocation->descent = word->size.descent;
|
|
} else
|
|
getAllocationOOF (start, end, allocation);
|
|
}
|
|
|
|
int Textblock::TextblockIterator::numContentsInFlow ()
|
|
{
|
|
return ((Textblock*)getWidget())->words->size ();
|
|
}
|
|
|
|
void Textblock::TextblockIterator::getContentInFlow (int index,
|
|
core::Content *content)
|
|
{
|
|
*content = ((Textblock*)getWidget())->words->getRef(index)->content;
|
|
}
|
|
|
|
} // namespace dw
|