valentina/src/libs/vlayout/vtextmanager.cpp

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#include <QRegularExpression>
#include <QFontMetrics>
#include "vtextmanager.h"
//---------------------------------------------------------------------------------------------------------------------
TextLine::TextLine()
:m_qsText(), m_iFontSize(MIN_FONT_SIZE), m_eFontWeight(QFont::Normal), m_eStyle(QFont::StyleNormal),
m_eAlign(Qt::AlignCenter), m_iHeight(0)
{}
//---------------------------------------------------------------------------------------------------------------------
VTextManager::VTextManager()
:m_liLines(), m_liOutput()
{}
//---------------------------------------------------------------------------------------------------------------------
VTextManager::~VTextManager()
{}
//---------------------------------------------------------------------------------------------------------------------
int VTextManager::GetSpacing() const
{
return 2;
}
//---------------------------------------------------------------------------------------------------------------------
void VTextManager::SetFont(const QFont& font)
{
m_font = font;
}
//---------------------------------------------------------------------------------------------------------------------
const QFont& VTextManager::GetFont() const
{
return m_font;
}
//---------------------------------------------------------------------------------------------------------------------
void VTextManager::SetFontSize(int iFS)
{
m_font.setPixelSize(iFS);
}
//---------------------------------------------------------------------------------------------------------------------
void VTextManager::AddLine(const TextLine& tl)
{
m_liLines << tl;
}
//---------------------------------------------------------------------------------------------------------------------
void VTextManager::Clear()
{
m_liLines.clear();
}
//---------------------------------------------------------------------------------------------------------------------
int VTextManager::GetCount() const
{
return m_liOutput.count();
}
//---------------------------------------------------------------------------------------------------------------------
int VTextManager::GetSourceLineCount() const
{
return m_liLines.count();
}
//---------------------------------------------------------------------------------------------------------------------
const TextLine& VTextManager::GetLine(int i) const
{
return m_liOutput[i];
}
//---------------------------------------------------------------------------------------------------------------------
bool VTextManager::IsBigEnough(qreal fW, qreal fH, int iFontSize)
{
m_liOutput.clear();
QFont fnt = m_font;
int iY = 0;
for (int i = 0; i < m_liLines.count(); ++i)
{
const TextLine& tl = m_liLines.at(i);
TextLine tlOut = tl;
fnt.setPixelSize(iFontSize + tl.m_iFontSize);
QFontMetrics fm(fnt);
tlOut.m_iHeight = fm.height();
QStringList qslLines = SplitString(tlOut.m_qsText, fW, fm);
for (int iL = 0; iL < qslLines.count(); ++iL)
{
tlOut.m_qsText = qslLines[iL];
m_liOutput << tlOut;
iY += tlOut.m_iHeight + GetSpacing();
}
}
return iY < fH;
}
//---------------------------------------------------------------------------------------------------------------------
void VTextManager::FitFontSize(qreal fW, qreal fH)
{
int iFontSize = GetFont().pixelSize();
while (IsBigEnough(fW, fH, iFontSize) == true && iFontSize <= MAX_FONT_SIZE)
{
++iFontSize;
}
while (IsBigEnough(fW, fH, iFontSize) == false && iFontSize >= MIN_FONT_SIZE)
{
--iFontSize;
}
SetFontSize(iFontSize);
}
//---------------------------------------------------------------------------------------------------------------------
QStringList VTextManager::SplitString(const QString &qs, qreal fW, const QFontMetrics &fm)
{
QRegularExpression reg("\\s+");
QStringList qslWords = qs.split(reg);
QStringList qslLines;
QString qsCurrent;
for (int i = 0; i < qslWords.count(); ++i)
{
if (qsCurrent.length() > 0)
{
qsCurrent += QLatin1Literal(" ");
}
if (fm.width(qsCurrent + qslWords[i]) > fW)
{
qslLines << qsCurrent;
qsCurrent = qslWords[i];
}
else
{
qsCurrent += qslWords[i];
}
}
qslLines << qsCurrent;
return qslLines;
}