string_uniscribe.cpp File Reference

Functions related to laying out text on Win32. More...

#include "../../stdafx.h"
#include "../../debug.h"
#include "string_uniscribe.h"
#include "../../language.h"
#include "../../strings_func.h"
#include "../../string_func.h"
#include "../../core/utf8.hpp"
#include "../../table/control_codes.h"
#include "../../zoom_func.h"
#include "win32.h"
#include <windows.h>
#include <usp10.h>
#include "../../safeguards.h"

Go to the source code of this file.

Data Structures
struct	UniscribeRun
	Contains all information about a run of characters. More...
class	UniscribeParagraphLayout
	Wrapper for doing layouts with Uniscribe. More...
class	UniscribeParagraphLayout::UniscribeVisualRun
	Visual run contains data about the bit of text with the same font. More...
class	UniscribeParagraphLayout::UniscribeLine
	A single line worth of VisualRuns. More...

Functions
static std::vector< SCRIPT_ITEM >	UniscribeItemizeString (UniscribeParagraphLayoutFactory::CharType *buff, int32_t length)
	Break a string into language formatting ranges.
static bool	UniscribeShapeRun (const UniscribeParagraphLayoutFactory::CharType *buff, UniscribeRun &range)
	Determine the glyph positions for a run.
void	UniscribeResetScriptCache (FontSize size)
static HFONT	HFontFromFont (Font *font)
	Load the matching native Windows font.

Variables
static SCRIPT_CACHE	_script_cache [FS_END]
	Uniscribe cache for internal font information, cleared when OTTD changes fonts.

Detailed Description

Functions related to laying out text on Win32.

Definition in file string_uniscribe.cpp.

Function Documentation

HFontFromFont()

HFONT HFontFromFont ( Font * font )

static

Load the matching native Windows font.

Parameters

font	The internal font configuration to load.

Returns

The reference to the native font.

Definition at line 143 of file string_uniscribe.cpp.

References convert_to_fs(), Font::fc, FontCache::GetFontName(), FontCache::GetHeight(), and FontCache::GetOSHandle().

Referenced by UniscribeShapeRun().

UniscribeItemizeString()

std::vector< SCRIPT_ITEM > UniscribeItemizeString ( UniscribeParagraphLayoutFactory::CharType * buff, int32_t length )

static

Break a string into language formatting ranges.

Parameters

buff	The string to itemize.
length	The length of the string.

Returns

The descriptions of the formatting ranges.

Definition at line 260 of file string_uniscribe.cpp.

References _current_language, _current_text_dir, and TD_RTL.

Referenced by UniscribeParagraphLayoutFactory::GetParagraphLayout(), and UniscribeStringIterator::SetString().

UniscribeResetScriptCache()

void UniscribeResetScriptCache

(

FontSize

size

)

Definition at line 130 of file string_uniscribe.cpp.

UniscribeShapeRun()

bool UniscribeShapeRun ( const UniscribeParagraphLayoutFactory::CharType * buff, UniscribeRun & range )

static

Determine the glyph positions for a run.

Parameters

	buff	The buffer of characters to shape.
[in,out]	range	The metadata about the run.

Returns

true iff shaping was executed without issues.

Definition at line 162 of file string_uniscribe.cpp.

References _script_cache, Font::fc, FontCache::GetGlyphWidth(), FontCache::GetHeight(), FontCache::GetSize(), HFontFromFont(), FontCache::MapCharToGlyph(), and ScaleSpriteTrad().

Referenced by UniscribeParagraphLayoutFactory::GetParagraphLayout(), and UniscribeParagraphLayout::NextLine().

Variable Documentation

_script_cache

SCRIPT_CACHE _script_cache[FS_END]

static

Uniscribe cache for internal font information, cleared when OTTD changes fonts.

Definition at line 32 of file string_uniscribe.cpp.

Referenced by UniscribeShapeRun().