本文整理汇总了C++中UTF8::empty方法的典型用法代码示例。如果您正苦于以下问题：C++ UTF8::empty方法的具体用法？C++ UTF8::empty怎么用？C++ UTF8::empty使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类UTF8的用法示例。
在下文中一共展示了UTF8::empty方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Draw
void STROKE_FONT::Draw( const UTF8& aText, const VECTOR2D& aPosition, double aRotationAngle )
{
// Context needs to be saved before any transformations
m_gal->Save();
m_gal->Translate( aPosition );
m_gal->Rotate( -aRotationAngle );
// Single line height
int lineHeight = getInterline();
// The overall height of all lines of text
double textBlockHeight = lineHeight * ( linesCount( aText ) - 1 );
switch( m_verticalJustify )
{
case GR_TEXT_VJUSTIFY_CENTER:
m_gal->Translate( VECTOR2D( 0, -textBlockHeight / 2.0 ) );
break;
case GR_TEXT_VJUSTIFY_BOTTOM:
m_gal->Translate( VECTOR2D( 0, -textBlockHeight ) );
break;
case GR_TEXT_VJUSTIFY_TOP:
break;
default:
break;
}
m_gal->SetIsStroke( true );
m_gal->SetIsFill( false );
if( m_bold )
m_gal->SetLineWidth( m_gal->GetLineWidth() * BOLD_FACTOR );
// Split multiline strings into separate ones and draw them line by line
size_t begin = 0;
size_t newlinePos = aText.find( '\n' );
while( newlinePos != aText.npos )
{
size_t length = newlinePos - begin;
drawSingleLineText( aText.substr( begin, length ) );
m_gal->Translate( VECTOR2D( 0.0, lineHeight ) );
begin = newlinePos + 1;
newlinePos = aText.find( '\n', begin );
}
// Draw the last (or the only one) line
if( !aText.empty() )
drawSingleLineText( aText.substr( begin ) );
m_gal->Restore();
}示例2: Draw
void STROKE_FONT::Draw( const UTF8& aText, const VECTOR2D& aPosition, double aRotationAngle )
{
if( aText.empty() )
return;
// Context needs to be saved before any transformations
m_gal->Save();
m_gal->Translate( aPosition );
m_gal->Rotate( -aRotationAngle );
// Single line height
int lineHeight = getInterline( );
int lineCount = linesCount( aText );
const VECTOR2D& glyphSize = m_gal->GetGlyphSize();
// align the 1st line of text
switch( m_gal->GetVerticalJustify() )
{
case GR_TEXT_VJUSTIFY_TOP:
m_gal->Translate( VECTOR2D( 0, glyphSize.y ) );
break;
case GR_TEXT_VJUSTIFY_CENTER:
m_gal->Translate( VECTOR2D( 0, glyphSize.y / 2.0 ) );
break;
case GR_TEXT_VJUSTIFY_BOTTOM:
break;
default:
break;
}
if( lineCount > 1 )
{
switch( m_gal->GetVerticalJustify() )
{
case GR_TEXT_VJUSTIFY_TOP:
break;
case GR_TEXT_VJUSTIFY_CENTER:
m_gal->Translate( VECTOR2D(0, -( lineCount - 1 ) * lineHeight / 2) );
break;
case GR_TEXT_VJUSTIFY_BOTTOM:
m_gal->Translate( VECTOR2D(0, -( lineCount - 1 ) * lineHeight ) );
break;
}
}
m_gal->SetIsStroke( true );
//m_gal->SetIsFill( false );
if( m_gal->IsFontBold() )
m_gal->SetLineWidth( m_gal->GetLineWidth() * BOLD_FACTOR );
// Split multiline strings into separate ones and draw them line by line
size_t begin = 0;
size_t newlinePos = aText.find( '\n' );
while( newlinePos != aText.npos )
{
size_t length = newlinePos - begin;
drawSingleLineText( aText.substr( begin, length ) );
m_gal->Translate( VECTOR2D( 0.0, lineHeight ) );
begin = newlinePos + 1;
newlinePos = aText.find( '\n', begin );
}
// Draw the last (or the only one) line
if( !aText.empty() )
drawSingleLineText( aText.substr( begin ) );
m_gal->Restore();
}