mirror of
https://github.com/alliedmodders/hl2sdk.git
synced 2025-09-19 20:16:10 +08:00
Added most recent version of unmodified HL2 SDK for Orange Box engine
This commit is contained in:
Scott Ehlert
815
vgui2/vgui_controls/TextImage.cpp
Normal file
815
vgui2/vgui_controls/TextImage.cpp
Normal file
@ -0,0 +1,815 @@
|
||||
//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
|
||||
//
|
||||
// Purpose: Implementation of vgui::TextImage control
|
||||
//
|
||||
// $NoKeywords: $
|
||||
//=============================================================================//
|
||||
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <ctype.h>
|
||||
#include <assert.h>
|
||||
#include <malloc.h>
|
||||
|
||||
#include <vgui/IPanel.h>
|
||||
#include <vgui/ISurface.h>
|
||||
#include <vgui/IScheme.h>
|
||||
#include <vgui/IInput.h>
|
||||
#include <vgui/ILocalize.h>
|
||||
#include <KeyValues.h>
|
||||
|
||||
#include <vgui_controls/TextImage.h>
|
||||
#include <vgui_controls/Controls.h>
|
||||
|
||||
#include "tier0/dbg.h"
|
||||
// memdbgon must be the last include file in a .cpp file!!!
|
||||
#include <tier0/memdbgon.h>
|
||||
|
||||
// enable this define if you want unlocalized strings logged to files unfound.txt and unlocalized.txt
|
||||
// #define LOG_UNLOCALIZED_STRINGS
|
||||
|
||||
using namespace vgui;
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Constructor
|
||||
//-----------------------------------------------------------------------------
|
||||
TextImage::TextImage(const char *text) : Image()
|
||||
{
|
||||
_utext = NULL;
|
||||
_textBufferLen = 0;
|
||||
_font = INVALID_FONT;
|
||||
_fallbackFont = INVALID_FONT;
|
||||
_unlocalizedTextSymbol = INVALID_STRING_INDEX;
|
||||
_drawWidth = 0;
|
||||
_textBufferLen = 0;
|
||||
_textLen = 0;
|
||||
m_bWrap = false;
|
||||
m_bWrapCenter = false;
|
||||
m_LineBreaks.RemoveAll();
|
||||
m_LineXIndent.RemoveAll();
|
||||
m_pwszEllipsesPosition = NULL;
|
||||
m_bUseFallbackFont = false;
|
||||
m_bRenderUsingFallbackFont = false;
|
||||
|
||||
SetText(text); // set the text.
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Constructor
|
||||
//-----------------------------------------------------------------------------
|
||||
TextImage::TextImage(const wchar_t *wszText) : Image()
|
||||
{
|
||||
_utext = NULL;
|
||||
_textBufferLen = 0;
|
||||
_font = INVALID_FONT;
|
||||
_fallbackFont = INVALID_FONT;
|
||||
_unlocalizedTextSymbol = INVALID_STRING_INDEX;
|
||||
_drawWidth = 0;
|
||||
_textBufferLen = 0;
|
||||
_textLen = 0;
|
||||
m_bWrap = false;
|
||||
m_bWrapCenter = false;
|
||||
m_LineBreaks.RemoveAll();
|
||||
m_LineXIndent.RemoveAll();
|
||||
m_bUseFallbackFont = false;
|
||||
m_bRenderUsingFallbackFont = false;
|
||||
|
||||
SetText(wszText); // set the text.
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Destructor
|
||||
//-----------------------------------------------------------------------------
|
||||
TextImage::~TextImage()
|
||||
{
|
||||
delete [] _utext;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: takes the string and looks it up in the localization file to convert it to unicode
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::SetText(const char *text)
|
||||
{
|
||||
if (!text)
|
||||
{
|
||||
text = "";
|
||||
}
|
||||
|
||||
// check for localization
|
||||
if (*text == '#')
|
||||
{
|
||||
// try lookup in localization tables
|
||||
_unlocalizedTextSymbol = g_pVGuiLocalize->FindIndex(text + 1);
|
||||
|
||||
if (_unlocalizedTextSymbol != INVALID_STRING_INDEX)
|
||||
{
|
||||
wchar_t *unicode = g_pVGuiLocalize->GetValueByIndex(_unlocalizedTextSymbol);
|
||||
SetText(unicode);
|
||||
return;
|
||||
}
|
||||
else
|
||||
{
|
||||
// could not find string
|
||||
// debug code for logging unlocalized strings
|
||||
#if defined(LOG_UNLOCALIZED_STRINGS)
|
||||
if (*text)
|
||||
{
|
||||
// write out error to unfound.txt log file
|
||||
static bool first = true;
|
||||
FILE *f;
|
||||
if (first)
|
||||
{
|
||||
first = false;
|
||||
f = fopen("unfound.txt", "wt");
|
||||
}
|
||||
else
|
||||
{
|
||||
f = fopen("unfound.txt", "at");
|
||||
}
|
||||
|
||||
if (f)
|
||||
{
|
||||
fprintf(f, "\"%s\"\n", text);
|
||||
fclose(f);
|
||||
}
|
||||
}
|
||||
#endif // LOG_UNLOCALIZED_STRINGS
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// debug code for logging unlocalized strings
|
||||
#if defined(LOG_UNLOCALIZED_STRINGS)
|
||||
if (text[0])
|
||||
{
|
||||
// setting a label to be ANSI text, write out error to unlocalized.txt log file
|
||||
static bool first = true;
|
||||
FILE *f;
|
||||
if (first)
|
||||
{
|
||||
first = false;
|
||||
f = fopen("unlocalized.txt", "wt");
|
||||
}
|
||||
else
|
||||
{
|
||||
f = fopen("unlocalized.txt", "at");
|
||||
}
|
||||
if (f)
|
||||
{
|
||||
fprintf(f, "\"%s\"\n", text);
|
||||
fclose(f);
|
||||
}
|
||||
}
|
||||
#endif // LOG_UNLOCALIZED_STRINGS
|
||||
}
|
||||
|
||||
// convert the ansi string to unicode and use that
|
||||
wchar_t unicode[1024];
|
||||
g_pVGuiLocalize->ConvertANSIToUnicode(text, unicode, sizeof(unicode));
|
||||
SetText(unicode);
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Sets the width that the text can be.
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::SetDrawWidth(int width)
|
||||
{
|
||||
_drawWidth = width;
|
||||
m_bRecalculateTruncation = true;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Gets the width that the text can be.
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::GetDrawWidth(int &width)
|
||||
{
|
||||
width = _drawWidth;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: sets unicode text directly
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::SetText(const wchar_t *unicode, bool bClearUnlocalizedSymbol)
|
||||
{
|
||||
if ( bClearUnlocalizedSymbol )
|
||||
{
|
||||
// Clear out unlocalized text symbol so that changing dialog variables
|
||||
// doesn't stomp over the custom unicode string we're being set to.
|
||||
_unlocalizedTextSymbol = INVALID_STRING_INDEX;
|
||||
}
|
||||
|
||||
if (!unicode)
|
||||
{
|
||||
unicode = L"";
|
||||
}
|
||||
|
||||
// reallocate the buffer if necessary
|
||||
_textLen = (short)wcslen(unicode);
|
||||
if (_textLen >= _textBufferLen)
|
||||
{
|
||||
delete [] _utext;
|
||||
_textBufferLen = (short)(_textLen + 1);
|
||||
_utext = new wchar_t[_textBufferLen];
|
||||
}
|
||||
|
||||
m_LineBreaks.RemoveAll();
|
||||
m_LineXIndent.RemoveAll();
|
||||
|
||||
// store the text as unicode
|
||||
wcscpy(_utext, unicode);
|
||||
m_bRecalculateTruncation = true;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Gets the text in the textImage
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::GetText(char *buffer, int bufferSize)
|
||||
{
|
||||
g_pVGuiLocalize->ConvertUnicodeToANSI(_utext, buffer, bufferSize);
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Gets the text in the textImage
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::GetText(wchar_t *buffer, int bufLenInBytes)
|
||||
{
|
||||
wcsncpy(buffer, _utext, bufLenInBytes / sizeof(wchar_t));
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: data accessor
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::GetUnlocalizedText(char *buffer, int bufferSize)
|
||||
{
|
||||
if (_unlocalizedTextSymbol != INVALID_STRING_INDEX)
|
||||
{
|
||||
const char *text = g_pVGuiLocalize->GetNameByIndex(_unlocalizedTextSymbol);
|
||||
buffer[0] = '#';
|
||||
Q_strncpy(buffer + 1, text, bufferSize - 1);
|
||||
buffer[bufferSize-1] = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
GetText(buffer, bufferSize);
|
||||
}
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: unlocalized text symbol
|
||||
//-----------------------------------------------------------------------------
|
||||
StringIndex_t TextImage::GetUnlocalizedTextSymbol()
|
||||
{
|
||||
return _unlocalizedTextSymbol;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Changes the current font
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::SetFont(HFont font)
|
||||
{
|
||||
_font = font;
|
||||
m_bRecalculateTruncation = true;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Gets the font of the text.
|
||||
//-----------------------------------------------------------------------------
|
||||
HFont TextImage::GetFont()
|
||||
{
|
||||
if ( m_bRenderUsingFallbackFont )
|
||||
{
|
||||
return _fallbackFont;
|
||||
}
|
||||
|
||||
return _font;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Sets the size of the TextImage. This is directly tied to drawWidth
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::SetSize(int wide, int tall)
|
||||
{
|
||||
Image::SetSize(wide, tall);
|
||||
_drawWidth = wide;
|
||||
m_bRecalculateTruncation = true;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Draw the Image on screen.
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::Paint()
|
||||
{
|
||||
int wide, tall;
|
||||
GetSize(wide, tall);
|
||||
|
||||
if (!_utext || GetFont() == INVALID_FONT )
|
||||
return;
|
||||
|
||||
if (m_bRecalculateTruncation)
|
||||
{
|
||||
if ( m_bWrap || m_bWrapCenter )
|
||||
{
|
||||
RecalculateNewLinePositions();
|
||||
}
|
||||
|
||||
RecalculateEllipsesPosition();
|
||||
}
|
||||
|
||||
DrawSetTextColor(GetColor());
|
||||
HFont font = GetFont();
|
||||
DrawSetTextFont(font);
|
||||
|
||||
int lineHeight = surface()->GetFontTall(font);
|
||||
int x = 0, y = 0;
|
||||
int iIndent = 0;
|
||||
|
||||
int px, py;
|
||||
GetPos(px, py);
|
||||
|
||||
int currentLineBreak = 0;
|
||||
|
||||
if ( m_LineXIndent.Count() )
|
||||
{
|
||||
x = m_LineXIndent[0];
|
||||
}
|
||||
|
||||
for (wchar_t *wsz = _utext; *wsz != 0; wsz++)
|
||||
{
|
||||
wchar_t ch = wsz[0];
|
||||
|
||||
// check for special characters
|
||||
if (ch == '\r')
|
||||
{
|
||||
// ignore, just use \n for newlines
|
||||
continue;
|
||||
}
|
||||
else if (ch == '\n')
|
||||
{
|
||||
// newline
|
||||
iIndent++;
|
||||
if ( iIndent < m_LineXIndent.Count() )
|
||||
{
|
||||
x = m_LineXIndent[iIndent];
|
||||
}
|
||||
else
|
||||
{
|
||||
x = 0;
|
||||
}
|
||||
y += lineHeight;
|
||||
continue;
|
||||
}
|
||||
else if (ch == '&')
|
||||
{
|
||||
// "&&" means draw a single ampersand, single one is a shortcut character
|
||||
if (wsz[1] == '&')
|
||||
{
|
||||
// just move on and draw the second ampersand
|
||||
wsz++;
|
||||
}
|
||||
else
|
||||
{
|
||||
// draw the underline, then continue to the next character without moving forward
|
||||
#ifdef VGUI_DRAW_HOTKEYS_ENABLED
|
||||
DrawPrintChar(x + px, y + py, '_');
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
// see if we've hit the truncated portion of the string
|
||||
if (wsz == m_pwszEllipsesPosition)
|
||||
{
|
||||
// string is truncated, draw ellipses
|
||||
for (int i = 0; i < 3; i++)
|
||||
{
|
||||
surface()->DrawSetTextPos(x + px, y + py);
|
||||
surface()->DrawUnicodeChar('.');
|
||||
x += surface()->GetCharacterWidth(font, '.');
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (currentLineBreak != m_LineBreaks.Count())
|
||||
{
|
||||
if (wsz == m_LineBreaks[currentLineBreak])
|
||||
{
|
||||
// newline
|
||||
iIndent++;
|
||||
if ( iIndent < m_LineXIndent.Count() )
|
||||
{
|
||||
x = m_LineXIndent[iIndent];
|
||||
}
|
||||
else
|
||||
{
|
||||
x = 0;
|
||||
}
|
||||
|
||||
y += lineHeight;
|
||||
currentLineBreak++;
|
||||
}
|
||||
}
|
||||
|
||||
// Underlined text wants to draw the spaces anyway
|
||||
surface()->DrawSetTextPos(x + px, y + py);
|
||||
surface()->DrawUnicodeChar(ch);
|
||||
x += surface()->GetCharacterWidth(font, ch);
|
||||
}
|
||||
|
||||
// Useful debugging
|
||||
/*
|
||||
DrawSetColor(GetColor());
|
||||
DrawOutlinedRect( 0,0, _drawWidth, tall );
|
||||
*/
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Get the size of a text string in pixels
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::GetTextSize(int &wide, int &tall)
|
||||
{
|
||||
wide = 0;
|
||||
tall = 0;
|
||||
int maxWide = 0;
|
||||
const wchar_t *text = _utext;
|
||||
|
||||
HFont font = _font;
|
||||
if ( font == INVALID_FONT )
|
||||
return;
|
||||
|
||||
if ( m_bWrap || m_bWrapCenter )
|
||||
{
|
||||
RecalculateNewLinePositions();
|
||||
}
|
||||
|
||||
// For height, use the remapped font
|
||||
int fontHeight = surface()->GetFontTall(GetFont());
|
||||
tall = fontHeight;
|
||||
|
||||
int textLen = wcslen(text);
|
||||
for (int i = 0; i < textLen; i++)
|
||||
{
|
||||
// handle stupid special characters, these should be removed
|
||||
if (text[i] == '&' && text[i + 1] != 0)
|
||||
{
|
||||
i++;
|
||||
}
|
||||
|
||||
int a, b, c;
|
||||
surface()->GetCharABCwide(font, text[i], a, b, c);
|
||||
wide += (a + b + c);
|
||||
|
||||
if (text[i] == '\n')
|
||||
{
|
||||
tall += fontHeight;
|
||||
if(wide>maxWide)
|
||||
{
|
||||
maxWide=wide;
|
||||
}
|
||||
wide=0; // new line, wide is reset...
|
||||
}
|
||||
|
||||
if ( m_bWrap || m_bWrapCenter )
|
||||
{
|
||||
for(int j=0; j<m_LineBreaks.Count(); j++)
|
||||
{
|
||||
if ( &text[i] == m_LineBreaks[j] )
|
||||
{
|
||||
tall += fontHeight;
|
||||
if(wide>maxWide)
|
||||
{
|
||||
maxWide=wide;
|
||||
}
|
||||
wide=0; // new line, wide is reset...
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
if (wide < maxWide)
|
||||
{
|
||||
// maxWide only gets set if a newline is in the label
|
||||
wide = maxWide;
|
||||
}
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Get the size of the text in the image
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::GetContentSize(int &wide, int &tall)
|
||||
{
|
||||
GetTextSize(wide, tall);
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Resize the text image to the content size
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::ResizeImageToContent()
|
||||
{
|
||||
int wide, tall;
|
||||
GetContentSize(wide, tall);
|
||||
SetSize(wide, tall);
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Recalculates line breaks
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::RecalculateNewLinePositions()
|
||||
{
|
||||
HFont font = GetFont();
|
||||
|
||||
int charWidth;
|
||||
int x = 0;
|
||||
|
||||
//int wordStartIndex = 0;
|
||||
wchar_t *wordStartIndex = _utext;
|
||||
int wordLength = 0;
|
||||
bool hasWord = false;
|
||||
bool justStartedNewLine = true;
|
||||
bool wordStartedOnNewLine = true;
|
||||
|
||||
int startChar = 0;
|
||||
|
||||
// clear the line breaks list
|
||||
m_LineBreaks.RemoveAll();
|
||||
m_LineXIndent.RemoveAll();
|
||||
|
||||
// handle the case where this char is a new line, in that case
|
||||
// we have already taken its break index into account above so skip it.
|
||||
if (_utext[startChar] == '\r' || _utext[startChar] == '\n')
|
||||
{
|
||||
startChar++;
|
||||
}
|
||||
|
||||
// loop through all the characters
|
||||
for (wchar_t *wsz = &_utext[startChar]; *wsz != 0; wsz++)
|
||||
{
|
||||
wchar_t ch = wsz[0];
|
||||
|
||||
// line break only on whitespace characters
|
||||
if (!iswspace(ch))
|
||||
{
|
||||
if ( !hasWord )
|
||||
{
|
||||
// Start a new word
|
||||
wordStartIndex = wsz;
|
||||
hasWord = true;
|
||||
wordStartedOnNewLine = justStartedNewLine;
|
||||
wordLength = 0;
|
||||
}
|
||||
//else append to the current word
|
||||
}
|
||||
else
|
||||
{
|
||||
// whitespace/punctuation character
|
||||
// end the word
|
||||
hasWord = false;
|
||||
}
|
||||
|
||||
// get the width
|
||||
charWidth = surface()->GetCharacterWidth(font, ch);
|
||||
if (!iswcntrl(ch))
|
||||
{
|
||||
justStartedNewLine = false;
|
||||
}
|
||||
|
||||
// check to see if the word is past the end of the line [wordStartIndex, i)
|
||||
if ((x + charWidth) > _drawWidth || ch == '\r' || ch == '\n')
|
||||
{
|
||||
justStartedNewLine = true;
|
||||
hasWord = false;
|
||||
|
||||
if (ch == '\r' || ch == '\n')
|
||||
{
|
||||
// set the break at the current character
|
||||
//don't do this, paint will manually wrap on newline chars
|
||||
// m_LineBreaks.AddToTail(i);
|
||||
}
|
||||
else if (wordStartedOnNewLine)
|
||||
{
|
||||
// word is longer than a line, so set the break at the current cursor
|
||||
m_LineBreaks.AddToTail(wsz);
|
||||
}
|
||||
else
|
||||
{
|
||||
// set it at the last word Start
|
||||
m_LineBreaks.AddToTail(wordStartIndex);
|
||||
|
||||
// just back to reparse the next line of text
|
||||
// ywb 8/1/07: Back off one extra char since the 'continue' will increment wsz for us by one in the for loop
|
||||
wsz = wordStartIndex - 1;
|
||||
}
|
||||
|
||||
// reset word length
|
||||
wordLength = 0;
|
||||
x = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
// add to the size
|
||||
x += charWidth;
|
||||
wordLength += charWidth;
|
||||
}
|
||||
|
||||
RecalculateCenterWrapIndents();
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: Calculates where the text should be truncated
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::RecalculateEllipsesPosition()
|
||||
{
|
||||
m_bRecalculateTruncation = false;
|
||||
m_pwszEllipsesPosition = NULL;
|
||||
|
||||
//don't insert ellipses on wrapped strings
|
||||
if ( m_bWrap || m_bWrapCenter )
|
||||
return;
|
||||
|
||||
// don't truncate strings with newlines
|
||||
if (wcschr(_utext, '\n') != NULL)
|
||||
return;
|
||||
|
||||
if ( _drawWidth == 0 )
|
||||
{
|
||||
int h;
|
||||
GetSize( _drawWidth, h );
|
||||
}
|
||||
|
||||
for ( int check = 0; check < (m_bUseFallbackFont ? 2 : 1); ++check )
|
||||
{
|
||||
HFont font = GetFont();
|
||||
if ( check == 1 && _fallbackFont != INVALID_FONT )
|
||||
{
|
||||
m_pwszEllipsesPosition = NULL;
|
||||
font = _fallbackFont;
|
||||
m_bRenderUsingFallbackFont = true;
|
||||
}
|
||||
|
||||
int ellipsesWidth = 3 * surface()->GetCharacterWidth(font, '.');
|
||||
int x = 0;
|
||||
|
||||
for (wchar_t *wsz = _utext; *wsz != 0; wsz++)
|
||||
{
|
||||
wchar_t ch = wsz[0];
|
||||
|
||||
// check for special characters
|
||||
if (ch == '\r')
|
||||
{
|
||||
// ignore, just use \n for newlines
|
||||
continue;
|
||||
}
|
||||
else if (ch == '&')
|
||||
{
|
||||
// "&&" means draw a single ampersand, single one is a shortcut character
|
||||
if (wsz[1] == '&')
|
||||
{
|
||||
// just move on and draw the second ampersand
|
||||
wsz++;
|
||||
}
|
||||
else
|
||||
{
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
// don't truncate the first character
|
||||
if (wsz == _utext)
|
||||
continue;
|
||||
|
||||
int len = surface()->GetCharacterWidth(font, ch);
|
||||
if (x + len + ellipsesWidth > _drawWidth)
|
||||
{
|
||||
// potential have an ellipses, see if the remaining characters will fit
|
||||
int remainingLength = len;
|
||||
for (const wchar_t *rwsz = wsz + 1; *rwsz != 0; rwsz++)
|
||||
{
|
||||
remainingLength += surface()->GetCharacterWidth(font, *rwsz);
|
||||
}
|
||||
|
||||
if (x + remainingLength > _drawWidth)
|
||||
{
|
||||
// looks like we've got an ellipses situation
|
||||
m_pwszEllipsesPosition = wsz;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
x += len;
|
||||
}
|
||||
|
||||
// Didn't need ellipses...
|
||||
if ( !m_pwszEllipsesPosition )
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void TextImage::SetWrap( bool bWrap )
|
||||
{
|
||||
m_bWrap = bWrap;
|
||||
}
|
||||
|
||||
void TextImage::SetCenterWrap( bool bWrap )
|
||||
{
|
||||
m_bWrapCenter = bWrap;
|
||||
}
|
||||
|
||||
|
||||
void TextImage::SetUseFallbackFont( bool bState, HFont hFallback )
|
||||
{
|
||||
m_bUseFallbackFont = bState;
|
||||
_fallbackFont = hFallback;
|
||||
}
|
||||
|
||||
void TextImage::ResizeImageToContentMaxWidth( int nMaxWidth )
|
||||
{
|
||||
_drawWidth = nMaxWidth;
|
||||
// Since we might have to use the "fallback" font, go ahead and recalc the ellipses state first to see if that's the case
|
||||
// NOTE: I think there may be a race condition lurking here, but this seems to work.
|
||||
if ( m_bRecalculateTruncation )
|
||||
{
|
||||
if ( m_bWrap || m_bWrapCenter )
|
||||
{
|
||||
RecalculateNewLinePositions();
|
||||
}
|
||||
|
||||
RecalculateEllipsesPosition();
|
||||
}
|
||||
|
||||
ResizeImageToContent();
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
// Purpose: For center wrapping of multi-line text images, determines the indent each line needs to be centered
|
||||
//-----------------------------------------------------------------------------
|
||||
void TextImage::RecalculateCenterWrapIndents()
|
||||
{
|
||||
m_LineXIndent.RemoveAll();
|
||||
|
||||
if ( !m_bWrapCenter )
|
||||
return;
|
||||
|
||||
if (!_utext || GetFont() == INVALID_FONT )
|
||||
return;
|
||||
|
||||
HFont font = GetFont();
|
||||
int px, py;
|
||||
GetPos(px, py);
|
||||
|
||||
int currentLineBreak = 0;
|
||||
int iCurLineW = 0;
|
||||
|
||||
for (wchar_t *wsz = _utext; *wsz != 0; wsz++)
|
||||
{
|
||||
wchar_t ch = wsz[0];
|
||||
|
||||
// check for special characters
|
||||
if (ch == '\r')
|
||||
{
|
||||
// ignore, just use \n for newlines
|
||||
continue;
|
||||
}
|
||||
else if (ch == '\n')
|
||||
{
|
||||
int iIdx = m_LineXIndent.AddToTail();
|
||||
m_LineXIndent[iIdx] = (_drawWidth - iCurLineW) * 0.5;
|
||||
|
||||
iCurLineW = 0;
|
||||
continue;
|
||||
}
|
||||
else if (ch == '&')
|
||||
{
|
||||
// "&&" means draw a single ampersand, single one is a shortcut character
|
||||
if (wsz[1] == '&')
|
||||
{
|
||||
// just move on and draw the second ampersand
|
||||
wsz++;
|
||||
}
|
||||
else
|
||||
{
|
||||
// draw the underline, then continue to the next character without moving forward
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
// Don't need to check ellipses, they're not used when wrapping
|
||||
|
||||
if (currentLineBreak != m_LineBreaks.Count())
|
||||
{
|
||||
if (wsz == m_LineBreaks[currentLineBreak])
|
||||
{
|
||||
int iIdx = m_LineXIndent.AddToTail();
|
||||
m_LineXIndent[iIdx] = (_drawWidth - iCurLineW) * 0.5;
|
||||
|
||||
iCurLineW = 0;
|
||||
currentLineBreak++;
|
||||
}
|
||||
}
|
||||
|
||||
iCurLineW += surface()->GetCharacterWidth(font, ch);
|
||||
}
|
||||
|
||||
// Add the final line
|
||||
int iIdx = m_LineXIndent.AddToTail();
|
||||
m_LineXIndent[iIdx] = (_drawWidth - iCurLineW) * 0.5;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user