147 lines
4.3 KiB
C++
147 lines
4.3 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef TEXTIMAGE_H
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#define TEXTIMAGE_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include <vgui/VGUI.h>
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#include <vgui/ILocalize.h>
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#include <vgui_controls/Image.h>
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#include <utlvector.h>
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#include <UtlSortVector.h>
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class KeyValues;
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namespace vgui
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{
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struct label_colorchange_t
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{
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Color color;
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int textStreamIndex;
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};
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// Used to sort the color changes into sequential order.
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class CColorChangeListLess
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{
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public:
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bool Less( const label_colorchange_t &src1, const label_colorchange_t &src2, void *pCtx )
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{
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if ( src1.textStreamIndex < src2.textStreamIndex )
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return true;
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return false;
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}
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};
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//-----------------------------------------------------------------------------
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// Purpose: Image that handles drawing of a text string
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//-----------------------------------------------------------------------------
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class TextImage : public Image
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{
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public:
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TextImage(const char *text);
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TextImage(const wchar_t *wszText);
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~TextImage();
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public:
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// takes the string and looks it up in the localization file to convert it to unicode
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virtual void SetText(const char *text);
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// sets unicode text directly
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virtual void SetText(const wchar_t *text, bool bClearUnlocalizedSymbol = false);
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// get the full text in the image
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virtual void GetText(char *buffer, int bufferSize);
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virtual void GetText(wchar_t *buffer, int bufferLength);
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// get the text in it's unlocalized form
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virtual void GetUnlocalizedText(char *buffer, int bufferSize);
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virtual StringIndex_t GetUnlocalizedTextSymbol();
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// set the font of the text
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virtual void SetFont(vgui::HFont font);
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// get the font of the text
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virtual vgui::HFont GetFont();
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// set the width of the text to be drawn
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// use this function if the textImage is in another window to cause
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// the text to be truncated to the width of the window (elipsis added)
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void SetDrawWidth(int width);
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// get the width of the text to be drawn
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void GetDrawWidth(int &width);
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void ResizeImageToContent();
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void ResizeImageToContentMaxWidth( int nMaxWidth );
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// set the size of the image
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virtual void SetSize(int wide,int tall);
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// get the full size of a text string
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virtual void GetContentSize(int &wide, int &tall);
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// draws the text
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virtual void Paint();
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void SetWrap( bool bWrap );
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void RecalculateNewLinePositions();
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void SetUseFallbackFont( bool bState, HFont hFallback );
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void SetAllCaps( bool bAllCaps );
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void SetCenterWrap( bool bWrap );
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void RecalculateCenterWrapIndents();
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const wchar_t *GetUText( void ) { return _utext; }
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void AddColorChange( Color col, int iTextStreamIndex );
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void SetColorChangeStream( CUtlSortVector<label_colorchange_t,CColorChangeListLess> *pUtlVecStream );
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void ClearColorChangeStream( void ) { m_ColorChangeStream.Purge(); }
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const wchar_t *GetEllipsesPosition( void ) const { return m_pwszEllipsesPosition; }
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bool IsWrapping() const { return m_LineBreaks.Count() != 0; }
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protected:
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// truncate the _text string to fit into the draw width
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void SizeText(wchar_t *tempText, int stringLength);
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// gets the size of a specified piece of text
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virtual void GetTextSize(int &wide, int &tall);
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private:
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void RecalculateEllipsesPosition();
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wchar_t *_utext; // unicode version of the text
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short _textBufferLen; // size of the text buffer
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short _textLen; // length of the text string
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vgui::HFont _font; // font of the text string
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vgui::HFont _fallbackFont;
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int _drawWidth; // this is the width of the window we are drawing into.
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// if there is not enough room truncate the txt and add an elipsis
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StringIndex_t _unlocalizedTextSymbol; // store off the unlocalized text index for build mode
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wchar_t *m_pwszEllipsesPosition;
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bool m_bRecalculateTruncation : 1;
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bool m_bWrap : 1;
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bool m_bUseFallbackFont : 1;
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bool m_bRenderUsingFallbackFont : 1;
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bool m_bAllCaps : 1;
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CUtlVector<wchar_t *> m_LineBreaks; // an array that holds the index in the buffer to wrap lines at
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bool m_bWrapCenter; // Separate from m_bWrap to ensure it doesn't break legacy code.
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CUtlVector<int> m_LineXIndent; // For centered word wrap. The X indent for each line.
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CUtlSortVector<label_colorchange_t,CColorChangeListLess> m_ColorChangeStream;
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};
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} // namespace vgui
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#endif // TEXTIMAGE_H
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