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FEATURE: Allow BitmapTexts to on-the-fly change color mid-text depending on the text

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This feature can be used by enabling the coloration by using the .SetDynamicColor( true )
function.  Once this is done, the syntax for color changing is: |c0RRGGBB where RR = red
in hex, GG = green in hex and BB = blue in hex.  |c0 is the token to note the
beginning of a text change.  This was discussed on the StepMania development
list.
This commit is contained in:
Charles Lohr
2005-05-03 03:37:52 +00:00
parent b6944ab340
commit 348c6f6f5a
3 changed files with 76 additions and 0 deletions
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stepmania/src/BitmapText.cpp
+63
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@@ -77,6 +77,8 @@ BitmapText::BitmapText()
m_fMaxHeight = 0;
SetShadowLength( 4 );
m_vColors.clear();
}
BitmapText::~BitmapText()
@@ -143,6 +145,8 @@ bool BitmapText::LoadFromFont( const CString& sFontFilePath )
BuildChars();
m_bColored = false;
return true;
}
@@ -207,6 +211,7 @@ void BitmapText::BuildChars()
for( unsigned i=0; i<m_wTextLines.size(); i++ ) // foreach line
{
iY += m_pFont->GetHeight();
const wstring &szLine = m_wTextLines[i];
const int iLineWidth = m_iLineWidths[i];
@@ -356,9 +361,41 @@ void BitmapText::SetText( const CString& _sText, const CString& _sAlternateText,
m_sText = sNewText;
m_iWrapWidthPixels = iWrapWidthPixels;
//Split out color commands if text is colored.
if ( m_bColored )
{
CString sEndText;
m_vColors.clear();
int i = m_sText.Find( "|c0", 0 );
int last = 0;
while ( ( i > -1 ) && ( i < ( int( m_sText.length() ) - 9 ) ) )
{
sEndText += m_sText.substr( last, i-last );
ColorChange change;
int k;
sscanf( m_sText.substr( i+3, 2 ).c_str(), "%x", &k ); change.c.r = float( k ) / 255.0f;
sscanf( m_sText.substr( i+5, 2 ).c_str(), "%x", &k ); change.c.g = float( k ) / 255.0f;
sscanf( m_sText.substr( i+7, 2 ).c_str(), "%x", &k ); change.c.b = float( k ) / 255.0f;
change.c.a = 1;
change.l = sEndText.length();
m_vColors.push_back( change );
last = i+9;
if ( last < m_sText.length() )
i = m_sText.Find( CString("|c0"), last );
else
i = -1;
}
if ( last < m_sText.length() )
sEndText += m_sText.substr( last, m_sText.length()-last );
m_sText = sEndText;
}
// Break the string into lines.
//
m_wTextLines.clear();
if( iWrapWidthPixels == -1 )
@@ -434,6 +471,13 @@ void BitmapText::SetText( const CString& _sText, const CString& _sAlternateText,
}
}
//XXX: YUCK! This is horrible... but basically, in order to make sure we are
//in sync with all of the color changes, we have to add bogus spaces at the end
//of all lines.
if ( m_bColored )
for ( unsigned int i = 0; i < m_wTextLines.size(); i++ )
m_wTextLines[i] = CStringToWstring( WStringToCString( m_wTextLines[i] ) + CString( " " ) );
BuildChars();
UpdateBaseZoom();
}
@@ -602,6 +646,25 @@ void BitmapText::DrawPrimitives()
color_index = (color_index+1)%NUM_RAINBOW_COLORS;
}
}
else if ( m_bColored )
{
int loc = 0, cur = 0;
RageColor c = m_pTempState->diffuse[0];
for( unsigned i=0; i<verts.size(); i+=4 )
{
loc++;
if ( cur < m_vColors.size() )
if ( loc > m_vColors[cur].l )
{
c = m_vColors[cur].c;
cur++;
}
for ( unsigned j=0; j<4; j++ )
verts[i+j].c = c;
}
}
else
{
for( unsigned i=0; i<verts.size(); i+=4 )