/
mythuitext.cpp
1603 lines (1388 loc) · 47.7 KB
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mythuitext.cpp
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#include "mythuitext.h"
#include <QCoreApplication>
#include <QtGlobal>
#include <QDomDocument>
#include <QFontMetrics>
#include <QString>
#include <QHash>
#include "mythlogging.h"
#include "mythuihelper.h"
#include "mythpainter.h"
#include "mythmainwindow.h"
#include "mythfontproperties.h"
#include "mythcorecontext.h"
#include "compat.h"
MythUIText::MythUIText(MythUIType *parent, const QString &name)
: MythUIType(parent, name),
m_Justification(Qt::AlignLeft | Qt::AlignTop), m_OrigDisplayRect(),
m_AltDisplayRect(), m_Canvas(),
m_drawRect(), m_cursorPos(-1, -1),
m_Message(""), m_CutMessage(""),
m_DefaultMessage(""), m_TemplateText(""),
m_ShrinkNarrow(true), m_Cutdown(Qt::ElideRight),
m_MultiLine(false), m_Ascent(0),
m_Descent(0), m_leftBearing(0),
m_rightBearing(0), m_Leading(1),
m_extraLeading(0), m_lineHeight(0),
m_textCursor(-1),
m_Font(new MythFontProperties()), m_colorCycling(false),
m_startColor(), m_endColor(),
m_numSteps(0), m_curStep(0),
curR(0.0), curG(0.0), curB(0.0),
incR(0.0), incG(0.0), incB(0.0),
m_scrollStartDelay(ScrollBounceDelay),
m_scrollReturnDelay(ScrollBounceDelay), m_scrollPause(0),
m_scrollForwardRate(70.0 / MythMainWindow::drawRefresh),
m_scrollReturnRate(70.0 / MythMainWindow::drawRefresh),
m_scrollBounce(false), m_scrollOffset(0),
m_scrollPos(0), m_scrollPosWhole(0),
m_scrollDirection(ScrollNone), m_scrolling(false),
m_textCase(CaseNormal)
{
#if 0 // Not currently used
m_usingAltArea = false;
#endif
m_EnableInitiator = true;
m_FontStates.insert("default", MythFontProperties());
*m_Font = m_FontStates["default"];
}
MythUIText::MythUIText(const QString &text, const MythFontProperties &font,
QRect displayRect, QRect altDisplayRect,
MythUIType *parent, const QString &name)
: MythUIType(parent, name),
m_Justification(Qt::AlignLeft | Qt::AlignTop),
m_OrigDisplayRect(displayRect), m_AltDisplayRect(altDisplayRect),
m_Canvas(0, 0, displayRect.width(), displayRect.height()),
m_drawRect(displayRect), m_cursorPos(-1, -1),
m_Message(text.trimmed()),
m_CutMessage(""), m_DefaultMessage(text),
m_Cutdown(Qt::ElideRight), m_Font(new MythFontProperties()),
m_colorCycling(false), m_startColor(),
m_endColor(), m_numSteps(0),
m_curStep(0),
curR(0.0), curG(0.0), curB(0.0),
incR(0.0), incG(0.0), incB(0.0)
{
#if 0 // Not currently used
m_usingAltArea = false;
#endif
m_ShrinkNarrow = true;
m_MultiLine = false;
m_scrollStartDelay = m_scrollReturnDelay = ScrollBounceDelay;
m_scrollPause = 0;
m_scrollForwardRate = m_scrollReturnRate =
70.0 / MythMainWindow::drawRefresh;
m_scrollBounce = false;
m_scrollOffset = 0;
m_scrollPos = 0;
m_scrollPosWhole = 0;
m_scrollDirection = ScrollNone;
m_scrolling = false;
m_textCase = CaseNormal;
m_Ascent = m_Descent = m_leftBearing = m_rightBearing = 0;
m_Leading = 1;
m_extraLeading = 0;
m_lineHeight = 0;
m_textCursor = -1;
m_EnableInitiator = true;
SetArea(displayRect);
m_FontStates.insert("default", font);
*m_Font = m_FontStates["default"];
}
MythUIText::~MythUIText()
{
delete m_Font;
m_Font = NULL;
QVector<QTextLayout *>::iterator Ilayout;
for (Ilayout = m_Layouts.begin(); Ilayout != m_Layouts.end(); ++Ilayout)
delete *Ilayout;
}
void MythUIText::Reset()
{
if (m_Message != m_DefaultMessage)
{
SetText(m_DefaultMessage);
SetRedraw();
emit DependChanged(true);
}
SetFontState("default");
MythUIType::Reset();
}
void MythUIText::SetText(const QString &text)
{
QString newtext = text;
newtext.detach();
if (!m_Layouts.isEmpty() && newtext == m_Message)
return;
if (newtext.isEmpty())
{
m_Message = m_DefaultMessage;
emit DependChanged(true);
}
else
{
m_Message = newtext;
emit DependChanged(false);
}
m_CutMessage.clear();
FillCutMessage();
SetRedraw();
}
void MythUIText::SetTextFromMap(QHash<QString, QString> &map)
{
if (!IsVisible())
return;
if (map.contains(objectName()))
{
QString newText = GetTemplateText();
if (newText.isEmpty())
newText = GetDefaultText();
QRegExp regexp("%(([^\\|%]+)?\\||\\|(.))?(\\w+)(\\|(.+))?%");
regexp.setMinimal(true);
if (!newText.isEmpty() && newText.contains(regexp))
{
int pos = 0;
QString translatedTemplate = qApp->translate("ThemeUI",
newText.toUtf8(),
NULL,
QCoreApplication::UnicodeUTF8);
QString tempString = translatedTemplate;
while ((pos = regexp.indexIn(translatedTemplate, pos)) != -1)
{
QString key = regexp.cap(4).toLower().trimmed();
QString replacement;
if (!map.value(key).isEmpty())
{
replacement = QString("%1%2%3%4")
.arg(regexp.cap(2))
.arg(regexp.cap(3))
.arg(map.value(key))
.arg(regexp.cap(6));
}
tempString.replace(regexp.cap(0), replacement);
pos += regexp.matchedLength();
}
newText = tempString;
}
else
newText = map.value(objectName());
SetText(newText);
}
}
QString MythUIText::GetText(void) const
{
QString ret = m_Message;
ret.detach();
return ret;
}
QString MythUIText::GetDefaultText(void) const
{
return m_DefaultMessage;
}
void MythUIText::SetFontProperties(const MythFontProperties &fontProps)
{
m_FontStates.insert("default", fontProps);
if (m_Font->GetHash() != m_FontStates["default"].GetHash())
{
*m_Font = m_FontStates["default"];
if (!m_Message.isEmpty())
{
FillCutMessage();
SetRedraw();
}
}
}
void MythUIText::SetFontState(const QString &state)
{
if (m_FontStates.contains(state))
{
if (m_Font->GetHash() == m_FontStates[state].GetHash())
return;
*m_Font = m_FontStates[state];
}
else
{
if (m_Font->GetHash() == m_FontStates["default"].GetHash())
return;
*m_Font = m_FontStates["default"];
}
if (!m_Message.isEmpty())
{
FillCutMessage();
SetRedraw();
}
}
#if 0 // Not currently used
void MythUIText::UseAlternateArea(bool useAlt)
{
if (useAlt && m_AltDisplayRect.width() > 1)
{
MythUIType::SetArea(m_AltDisplayRect);
m_usingAltArea = true;
}
else
{
MythUIType::SetArea(m_OrigDisplayRect);
m_usingAltArea = false;
}
FillCutMessage();
}
#endif
void MythUIText::SetJustification(int just)
{
int h = just & Qt::AlignHorizontal_Mask;
int v = just & Qt::AlignVertical_Mask;
if ((h && (m_Justification & Qt::AlignHorizontal_Mask) ^ h) ||
(v && (m_Justification & Qt::AlignVertical_Mask) ^ v))
{
// preserve the wordbreak attribute, drop everything else
m_Justification = m_Justification & Qt::TextWordWrap;
m_Justification |= just;
if (!m_Message.isEmpty())
{
FillCutMessage();
SetRedraw();
}
}
}
int MythUIText::GetJustification(void)
{
return m_Justification;
}
void MythUIText::SetCutDown(Qt::TextElideMode mode)
{
if (mode != m_Cutdown)
{
m_Cutdown = mode;
if (m_scrolling && m_Cutdown != Qt::ElideNone)
{
LOG(VB_GENERAL, LOG_ERR, QString("'%1' (%2): <scroll> and "
"<cutdown> are not combinable.")
.arg(objectName()).arg(GetXMLLocation()));
m_Cutdown = Qt::ElideNone;
}
if (!m_Message.isEmpty())
{
FillCutMessage();
SetRedraw();
}
}
}
void MythUIText::SetMultiLine(bool multiline)
{
if (multiline != m_MultiLine)
{
m_MultiLine = multiline;
if (m_MultiLine)
m_Justification |= Qt::TextWordWrap;
else
m_Justification &= ~Qt::TextWordWrap;
if (!m_Message.isEmpty())
{
FillCutMessage();
SetRedraw();
}
}
}
void MythUIText::SetArea(const MythRect &rect)
{
MythUIType::SetArea(rect);
m_CutMessage.clear();
m_drawRect = m_Area;
FillCutMessage();
}
void MythUIText::SetPosition(const MythPoint &pos)
{
MythUIType::SetPosition(pos);
m_drawRect.moveTopLeft(m_Area.topLeft());
}
void MythUIText::SetCanvasPosition(int x, int y)
{
QPoint newpoint(x, y);
if (newpoint == m_Canvas.topLeft())
return;
m_Canvas.moveTopLeft(newpoint);
SetRedraw();
}
void MythUIText::ShiftCanvas(int x, int y)
{
if (x == 0 && y == 0)
return;
m_Canvas.moveTop(m_Canvas.y() + y);
m_Canvas.moveLeft(m_Canvas.x() + x);
SetRedraw();
}
void MythUIText::DrawSelf(MythPainter *p, int xoffset, int yoffset,
int alphaMod, QRect clipRect)
{
if (m_Canvas.isNull())
return;
FormatVector formats;
QRect drawrect = m_drawRect.toQRect();
drawrect.translate(xoffset, yoffset);
QRect canvas = m_Canvas.toQRect();
int alpha = CalcAlpha(alphaMod);
if (m_Ascent)
{
drawrect.setY(drawrect.y() - m_Ascent);
canvas.moveTop(canvas.y() + m_Ascent);
canvas.setHeight(canvas.height() + m_Ascent);
}
if (m_Descent)
{
drawrect.setHeight(drawrect.height() + m_Descent);
canvas.setHeight(canvas.height() + m_Descent);
}
if (m_leftBearing)
{
drawrect.setX(drawrect.x() + m_leftBearing);
canvas.moveLeft(canvas.x() - m_leftBearing);
canvas.setWidth(canvas.width() - m_leftBearing);
}
if (m_rightBearing)
{
drawrect.setWidth(drawrect.width() - m_rightBearing);
canvas.setWidth(canvas.width() - m_rightBearing);
}
if (GetFontProperties()->hasOutline())
{
QTextLayout::FormatRange range;
QColor outlineColor;
int outlineSize, outlineAlpha;
GetFontProperties()->GetOutline(outlineColor, outlineSize,
outlineAlpha);
outlineColor.setAlpha(outlineAlpha);
MythPoint outline(outlineSize, outlineSize);
outline.NormPoint(); // scale it to screen resolution
QPen pen;
pen.setBrush(outlineColor);
pen.setWidth(outline.x());
range.start = 0;
range.length = m_CutMessage.size();
range.format.setTextOutline(pen);
formats.push_back(range);
drawrect.setX(drawrect.x() - outline.x());
drawrect.setWidth(drawrect.width() + outline.x());
drawrect.setY(drawrect.y() - outline.y());
drawrect.setHeight(drawrect.height() + outline.y());
/* Canvas pos is where the view port (drawrect) pulls from, so
* it needs moved to the right for the left edge to be picked up*/
canvas.moveLeft(canvas.x() + outline.x());
canvas.setWidth(canvas.width() + outline.x());
canvas.moveTop(canvas.y() + outline.y());
canvas.setHeight(canvas.height() + outline.y());
}
if (GetFontProperties()->hasShadow())
{
QPoint shadowOffset;
QColor shadowColor;
int shadowAlpha;
GetFontProperties()->GetShadow(shadowOffset, shadowColor, shadowAlpha);
MythPoint shadow(shadowOffset);
shadow.NormPoint(); // scale it to screen resolution
drawrect.setWidth(drawrect.width() + shadow.x());
drawrect.setHeight(drawrect.height() + shadow.y());
canvas.setWidth(canvas.width() + shadow.x());
canvas.setHeight(canvas.height() + shadow.y());
}
p->DrawTextLayout(canvas, m_Layouts, formats,
*GetFontProperties(), alpha, drawrect);
}
bool MythUIText::Layout(QString & paragraph, QTextLayout *layout, bool final,
bool & overflow, qreal width, qreal & height,
bool force, qreal & last_line_width,
QRectF & min_rect, int & num_lines)
{
int last_line = 0;
layout->setText(paragraph);
layout->beginLayout();
num_lines = 0;
for (;;)
{
QTextLine line = layout->createLine();
if (!line.isValid())
break;
// Try "visible" width first, so alignment works
line.setLineWidth(width);
if (!m_MultiLine && line.textLength() < paragraph.size())
{
if (!force && m_Cutdown != Qt::ElideNone)
{
QFontMetrics fm(GetFontProperties()->face());
paragraph = fm.elidedText(paragraph, m_Cutdown,
width - fm.averageCharWidth());
return false;
}
// If text does not fit, then expand so canvas size is correct
line.setLineWidth(INT_MAX);
}
height += m_Leading;
line.setPosition(QPointF(0, height));
height += m_lineHeight;
if (!overflow)
{
if (height > m_Area.height())
{
LOG(VB_GUI, num_lines ? LOG_DEBUG : LOG_NOTICE,
QString("'%1' (%2): height overflow. line height %3 "
"paragraph height %4, area height %5")
.arg(objectName())
.arg(GetXMLLocation())
.arg(line.height())
.arg(height)
.arg(m_Area.height()));
if (!m_MultiLine)
m_drawRect.setHeight(height);
if (m_Cutdown != Qt::ElideNone)
{
QFontMetrics fm(GetFontProperties()->face());
QString cut_line = fm.elidedText
(paragraph.mid(last_line),
Qt::ElideRight,
width - fm.averageCharWidth());
paragraph = paragraph.left(last_line) + cut_line;
if (last_line == 0)
min_rect |= line.naturalTextRect();
return false;
}
overflow = true;
}
else
m_drawRect.setHeight(height);
if (!m_MultiLine)
overflow = true;
}
last_line = line.textStart();
last_line_width = line.naturalTextWidth();
min_rect |= line.naturalTextRect();
++num_lines;
if (final && line.textLength())
{
/**
* FontMetrics::width() returns a value that is good for spacing
* the characters, but may not represent the *full* width. We need
* to make sure we have enough space for the *full* width or
* characters could be clipped.
*
* bearing will be negative if the char 'leans' over the "width"
*/
QFontMetrics fm(GetFontProperties()->face());
int bearing;
bearing = fm.leftBearing(m_CutMessage[last_line]);
if (m_leftBearing > bearing)
m_leftBearing = bearing;
bearing = fm.rightBearing
(m_CutMessage[last_line + line.textLength() - 1]);
if (m_rightBearing > bearing)
m_rightBearing = bearing;
}
}
layout->endLayout();
return true;
}
bool MythUIText::LayoutParagraphs(const QStringList & paragraphs,
const QTextOption & textoption,
qreal width, qreal & height,
QRectF & min_rect, qreal & last_line_width,
int & num_lines, bool final)
{
QStringList::const_iterator Ipara;
QVector<QTextLayout *>::iterator Ilayout;
QTextLayout *layout;
QString para;
bool overflow = false;
qreal saved_height;
QRectF saved_rect;
int idx;
for (Ilayout = m_Layouts.begin(); Ilayout != m_Layouts.end(); ++Ilayout)
(*Ilayout)->clearLayout();
for (Ipara = paragraphs.begin(), idx = 0;
Ipara != paragraphs.end(); ++Ipara, ++idx)
{
layout = m_Layouts[idx];
layout->setTextOption(textoption);
layout->setFont(m_Font->face());
para = *Ipara;
saved_height = height;
saved_rect = min_rect;
if (!Layout(para, layout, final, overflow, width, height, false,
last_line_width, min_rect, num_lines))
{
// Again, with cut down
min_rect = saved_rect;
height = saved_height;
Layout(para, layout, final, overflow, width, height, true,
last_line_width, min_rect, num_lines);
break;
}
}
m_drawRect.setWidth(width);
return (!overflow);
}
bool MythUIText::GetNarrowWidth(const QStringList & paragraphs,
const QTextOption & textoption, qreal & width)
{
qreal height, last_line_width, lines;
int best_width, too_narrow, last_width = -1;
int num_lines = 0;
int line_height = 0;
int attempt = 0;
Qt::TextElideMode cutdown = m_Cutdown;
m_Cutdown = Qt::ElideNone;
line_height = m_Leading + m_lineHeight;
width = m_Area.width() / 2.0;
best_width = m_Area.width();
too_narrow = 0;
for (attempt = 0; attempt < 10; ++attempt)
{
QRectF min_rect;
m_drawRect.setWidth(0);
height = 0;
LayoutParagraphs(paragraphs, textoption, width, height,
min_rect, last_line_width, num_lines, false);
if (num_lines <= 0)
return false;
if (height > m_drawRect.height())
{
if (too_narrow < width)
too_narrow = width;
// Too narrow? How many lines didn't fit?
lines = static_cast<int>
((height - m_drawRect.height()) / line_height);
lines -= (1.0 - last_line_width / width);
width += (lines * width) /
(m_drawRect.height() / line_height);
if (width > best_width || static_cast<int>(width) == last_width)
{
width = best_width;
m_Cutdown = cutdown;
return true;
}
}
else
{
if (best_width > width)
best_width = width;
lines = static_cast<int>
(m_Area.height() - height) / line_height;
if (lines >= 1)
{
// Too wide?
width -= width *
(lines / static_cast<qreal>(num_lines - 1 + lines));
if (static_cast<int>(width) == last_width)
{
m_Cutdown = cutdown;
return true;
}
}
else if (last_line_width < m_Area.width())
{
// Is the last line fully used?
width -= (1.0 - last_line_width / width) / num_lines;
if (width > last_line_width)
width = last_line_width;
if (static_cast<int>(width) == last_width)
{
m_Cutdown = cutdown;
return true;
}
}
if (width < too_narrow)
width = too_narrow;
}
last_width = width;
}
LOG(VB_GENERAL, LOG_ERR, QString("'%1' (%2) GetNarrowWidth: Gave up "
"while trying to find optimal width "
"for '%3'.")
.arg(objectName()).arg(GetXMLLocation()).arg(m_CutMessage));
width = best_width;
m_Cutdown = cutdown;
return false;
}
void MythUIText::FillCutMessage(void)
{
if (m_Area.isNull())
return;
qreal width, height;
QRectF min_rect;
QFontMetrics fm(GetFontProperties()->face());
m_lineHeight = fm.height();
m_Leading = m_MultiLine ? fm.leading() + m_extraLeading : m_extraLeading;
m_CutMessage.clear();
m_textCursor = -1;
if (m_Message != m_DefaultMessage)
{
bool isNumber;
int value = m_Message.toInt(&isNumber);
if (isNumber && m_TemplateText.contains("%n"))
{
m_CutMessage = qApp->translate("ThemeUI",
m_TemplateText.toUtf8(), NULL,
QCoreApplication::UnicodeUTF8,
qAbs(value));
}
else if (m_TemplateText.contains("%1"))
{
QString tmp = qApp->translate("ThemeUI", m_TemplateText.toUtf8(),
NULL, QCoreApplication::UnicodeUTF8);
m_CutMessage = tmp.arg(m_Message);
}
}
if (m_CutMessage.isEmpty())
m_CutMessage = m_Message;
if (m_CutMessage.isEmpty())
{
if (m_Layouts.empty())
m_Layouts.push_back(new QTextLayout);
QTextLine line;
QTextOption textoption(static_cast<Qt::Alignment>(m_Justification));
QVector<QTextLayout *>::iterator Ilayout = m_Layouts.begin();
(*Ilayout)->setTextOption(textoption);
(*Ilayout)->setText("");
(*Ilayout)->beginLayout();
line = (*Ilayout)->createLine();
line.setLineWidth(m_Area.width());
line.setPosition(QPointF(0, 0));
(*Ilayout)->endLayout();
m_drawRect.setWidth(m_Area.width());
m_drawRect.setHeight(m_lineHeight);
for (++Ilayout ; Ilayout != m_Layouts.end(); ++Ilayout)
(*Ilayout)->clearLayout();
m_Ascent = m_Descent = m_leftBearing = m_rightBearing = 0;
}
else
{
QStringList templist;
QStringList::iterator it;
switch (m_textCase)
{
case CaseUpper :
m_CutMessage = m_CutMessage.toUpper();
break;
case CaseLower :
m_CutMessage = m_CutMessage.toLower();
break;
case CaseCapitaliseFirst :
//m_CutMessage = m_CutMessage.toLower();
templist = m_CutMessage.split(". ");
for (it = templist.begin(); it != templist.end(); ++it)
(*it).replace(0, 1, (*it).left(1).toUpper());
m_CutMessage = templist.join(". ");
break;
case CaseCapitaliseAll :
//m_CutMessage = m_CutMessage.toLower();
templist = m_CutMessage.split(" ");
for (it = templist.begin(); it != templist.end(); ++it)
(*it).replace(0, 1, (*it).left(1).toUpper());
m_CutMessage = templist.join(" ");
break;
case CaseNormal:
break;
}
QTextOption textoption(static_cast<Qt::Alignment>(m_Justification));
textoption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
int idx, num_lines;
qreal last_line_width;
QStringList paragraphs = m_CutMessage.split('\n',
QString::KeepEmptyParts);
for (idx = m_Layouts.size(); idx < paragraphs.size(); ++idx)
m_Layouts.push_back(new QTextLayout);
if (m_MultiLine && m_ShrinkNarrow &&
m_MinSize.isValid() && !m_CutMessage.isEmpty())
GetNarrowWidth(paragraphs, textoption, width);
else
width = m_Area.width();
height = 0;
m_leftBearing = m_rightBearing = 0;
LayoutParagraphs(paragraphs, textoption, width, height,
min_rect, last_line_width, num_lines, true);
m_Canvas.setRect(0, 0, min_rect.x() + min_rect.width(), height);
m_scrollPause = m_scrollStartDelay; // ????
m_scrollBounce = false;
/**
* FontMetrics::height() returns a value that is good for spacing
* the lines, but may not represent the *full* height. We need
* to make sure we have enough space for the *full* height or
* characters could be clipped.
*/
QRect actual = fm.boundingRect(m_CutMessage);
m_Ascent = -(actual.y() + fm.ascent());
m_Descent = actual.height() - fm.height();
}
if (m_scrolling)
{
if (m_scrollDirection == ScrollLeft ||
m_scrollDirection == ScrollRight ||
m_scrollDirection == ScrollHorizontal)
{
if (m_Canvas.width() > m_drawRect.width())
{
m_drawRect.setX(m_Area.x());
m_drawRect.setWidth(m_Area.width());
m_scrollOffset = m_drawRect.x() - m_Canvas.x();
}
}
else
{
if (m_Canvas.height() > m_drawRect.height())
{
m_drawRect.setY(m_Area.y());
m_drawRect.setHeight(m_Area.height());
m_scrollOffset = m_drawRect.y() - m_Canvas.y();
}
}
}
// If any of hcenter|vcenter|Justify, center it all, then adjust later
if (m_Justification & (Qt::AlignCenter|Qt::AlignJustify))
{
m_drawRect.moveCenter(m_Area.center());
min_rect.moveCenter(m_Area.center());
}
// Adjust horizontal
if (m_Justification & Qt::AlignLeft)
{
// If text size is less than allowed min size, center it
if (m_ShrinkNarrow && m_MinSize.isValid() && min_rect.isValid() &&
min_rect.width() < m_MinSize.x())
{
m_drawRect.moveLeft(m_Area.x() +
(((m_MinSize.x() - min_rect.width() +
fm.averageCharWidth()) / 2)));
min_rect.setWidth(m_MinSize.x());
}
else
m_drawRect.moveLeft(m_Area.x());
min_rect.moveLeft(m_Area.x());
}
else if (m_Justification & Qt::AlignRight)
{
// If text size is less than allowed min size, center it
if (m_ShrinkNarrow && m_MinSize.isValid() && min_rect.isValid() &&
min_rect.width() < m_MinSize.x())
{
m_drawRect.moveRight(m_Area.x() + m_Area.width() -
(((m_MinSize.x() - min_rect.width() +
fm.averageCharWidth()) / 2)));
min_rect.setWidth(m_MinSize.x());
}
else
m_drawRect.moveRight(m_Area.x() + m_Area.width());
min_rect.moveRight(m_Area.x() + m_Area.width());
}
// Adjust vertical
if (m_Justification & Qt::AlignTop)
{
// If text size is less than allowed min size, center it
if (!m_ShrinkNarrow && m_MinSize.isValid() && min_rect.isValid() &&
min_rect.height() < m_MinSize.y())
{
m_drawRect.moveTop(m_Area.y() +
((m_MinSize.y() - min_rect.height()) / 2));
min_rect.setHeight(m_MinSize.y());
}
else
m_drawRect.moveTop(m_Area.y());
min_rect.moveTop(m_Area.y());
}
else if (m_Justification & Qt::AlignBottom)
{
// If text size is less than allowed min size, center it
if (!m_ShrinkNarrow && m_MinSize.isValid() && min_rect.isValid() &&
min_rect.height() < m_MinSize.y())
{
m_drawRect.moveBottom(m_Area.y() + m_Area.height() -
((m_MinSize.y() - min_rect.height()) / 2));
min_rect.setHeight(m_MinSize.y());
}
else
m_drawRect.moveBottom(m_Area.y() + m_Area.height());
min_rect.moveBottom(m_Area.y() + m_Area.height());
}
m_Initiator = m_EnableInitiator;
if (m_MinSize.isValid())
{
// Record the minimal area needed for the message.
SetMinArea(min_rect.toRect());
}
}
int MythUIText::MoveCursor(int lines)
{
int lineNo = -1;
int lineCount = 0;
int currPos = 0;
int layoutStartPos = 0;
int xPos;
for (int x = 0; x < m_Layouts.count(); x++)
{
QTextLayout *layout = m_Layouts.at(x);
for (int y = 0; y < layout->lineCount(); y++)
{
lineCount++;
if (lineNo != -1)
continue;
QTextLine line = layout->lineAt(y);
if (m_textCursor >= currPos && m_textCursor < currPos + line.textLength()
+ (line.lineNumber() == layout->lineCount() - 1 ? 1 : 0))
{
lineNo = lineCount - 1;
xPos = line.cursorToX(m_textCursor - layoutStartPos);
continue;
}
currPos += line.textLength();
}
currPos += 1; // skip the newline
layoutStartPos = currPos;
}
// are we are at the top and need to scroll up
if (lineNo == 0 && lines < 0)
return -1;
// are we at the bottom and need to scroll down
if (lineNo == lineCount - 1 && lines > 0)
return -1;
if (lineNo == -1)
{
LOG(VB_GENERAL, LOG_ERR,
QString("'%1' (%2) MoveCursor offset %3 not found in ANY paragraph!")
.arg(objectName()).arg(GetXMLLocation()).arg(m_textCursor));
return m_textCursor;
}
int newLine = lineNo + lines;
if (newLine < 0)
newLine = 0;
if (newLine >= lineCount)
newLine = lineCount - 1;