OpenTTD
Data Structures | Functions
gfx_layout.cpp File Reference

Handling of laying out text. More...

#include "stdafx.h"
#include "gfx_layout.h"
#include "string_func.h"
#include "strings_func.h"
#include "debug.h"
#include "table/control_codes.h"
#include <unicode/ustring.h>
#include "safeguards.h"

Go to the source code of this file.

Data Structures

class  ICUParagraphLayout
 Wrapper for doing layouts with ICU. More...
 
class  ICUParagraphLayout::ICUVisualRun
 Visual run contains data about the bit of text with the same font. More...
 
class  ICUParagraphLayout::ICULine
 A single line worth of VisualRuns. More...
 
class  FallbackParagraphLayout
 Class handling the splitting of a paragraph of text into lines and visual runs. More...
 
class  FallbackParagraphLayout::FallbackVisualRun
 Visual run contains data about the bit of text with the same font. More...
 
class  FallbackParagraphLayout::FallbackLine
 A single line worth of VisualRuns. More...
 

Functions

static size_t AppendToBuffer (UChar *buff, const UChar *buffer_last, WChar c)
 
static ParagraphLayouterGetParagraphLayout (UChar *buff, UChar *buff_end, FontMap &fontMapping)
 
static size_t AppendToBuffer (WChar *buff, const WChar *buffer_last, WChar c)
 Appand a wide character to the internal buffer. More...
 
static FallbackParagraphLayoutGetParagraphLayout (WChar *buff, WChar *buff_end, FontMap &fontMapping)
 Get the actual ParagraphLayout for the given buffer. More...
 
template<typename T >
static void GetLayouter (Layouter::LineCacheItem &line, const char *&str, FontState &state)
 Helper for getting a ParagraphLayouter of the given type. More...
 

Detailed Description

Handling of laying out text.

Definition in file gfx_layout.cpp.

Function Documentation

◆ AppendToBuffer()

static size_t AppendToBuffer ( WChar buff,
const WChar buffer_last,
WChar  c 
)
static

Appand a wide character to the internal buffer.

Parameters
buffThe buffer to append to.
buffer_lastThe end of the buffer.
cThe character to add.
Returns
The number of buffer spaces that were used.

Definition at line 546 of file gfx_layout.cpp.

◆ GetLayouter()

template<typename T >
static void GetLayouter ( Layouter::LineCacheItem line,
const char *&  str,
FontState state 
)
inlinestatic

Helper for getting a ParagraphLayouter of the given type.

Note
In case no ParagraphLayouter could be constructed, line.layout will be NULL.
Parameters
lineThe cache item to store our layouter in.
strThe string to create a layouter for.
stateThe state of the font and color.
Template Parameters
TThe type of layouter we want.

Definition at line 574 of file gfx_layout.cpp.

References Layouter::LineCacheItem::buffer, FontState::cur_colour, DRAW_STRING_BUFFER, FontState::fontsize, free(), Layouter::GetFont(), and Layouter::LineCacheItem::runs.

◆ GetParagraphLayout()

static FallbackParagraphLayout* GetParagraphLayout ( WChar buff,
WChar buff_end,
FontMap fontMapping 
)
static

Get the actual ParagraphLayout for the given buffer.

Parameters
buffThe begin of the buffer.
buff_endThe location after the last element in the buffer.
fontMappingTHe mapping of the fonts.
Returns
The ParagraphLayout instance.

Definition at line 559 of file gfx_layout.cpp.

References FallbackParagraphLayout::FallbackParagraphLayout().