dw::core::style Namespace Reference

Anything related to Dillo Widget styles is defined here. More...

Classes
class	Box
	Represents a dimension box according to the CSS box model. More...
class	Color
class	ColorAttrs
class	Font
class	FontAttrs
class	Style
class	StyleAttrs
class	StyleImage
class	Tooltip
class	TooltipAttrs

Typedefs
typedef int	Length
	Type for representing all lengths within dw::core::style.

Enumerations
enum	Cursor {   CURSOR_CROSSHAIR , CURSOR_DEFAULT , CURSOR_POINTER , CURSOR_MOVE ,   CURSOR_E_RESIZE , CURSOR_NE_RESIZE , CURSOR_NW_RESIZE , CURSOR_N_RESIZE ,   CURSOR_SE_RESIZE , CURSOR_SW_RESIZE , CURSOR_S_RESIZE , CURSOR_W_RESIZE ,   CURSOR_TEXT , CURSOR_WAIT , CURSOR_HELP }
enum	BorderCollapse { BORDER_MODEL_SEPARATE , BORDER_MODEL_COLLAPSE }
enum	BorderStyle {   BORDER_NONE , BORDER_HIDDEN , BORDER_DOTTED , BORDER_DASHED ,   BORDER_SOLID , BORDER_DOUBLE , BORDER_GROOVE , BORDER_RIDGE ,   BORDER_INSET , BORDER_OUTSET }
enum	BackgroundRepeat { BACKGROUND_REPEAT , BACKGROUND_REPEAT_X , BACKGROUND_REPEAT_Y , BACKGROUND_NO_REPEAT }
enum	BackgroundAttachment { BACKGROUND_ATTACHMENT_SCROLL , BACKGROUND_ATTACHMENT_FIXED }
enum	TextAlignType {   TEXT_ALIGN_LEFT , TEXT_ALIGN_RIGHT , TEXT_ALIGN_CENTER , TEXT_ALIGN_JUSTIFY ,   TEXT_ALIGN_STRING }
enum	VAlignType {   VALIGN_TOP , VALIGN_BOTTOM , VALIGN_MIDDLE , VALIGN_BASELINE ,   VALIGN_SUB , VALIGN_SUPER , VALIGN_TEXT_TOP , VALIGN_TEXT_BOTTOM }
enum	TextTransform { TEXT_TRANSFORM_NONE , TEXT_TRANSFORM_CAPITALIZE , TEXT_TRANSFORM_UPPERCASE , TEXT_TRANSFORM_LOWERCASE }
enum	DisplayType {   DISPLAY_BLOCK , DISPLAY_INLINE , DISPLAY_INLINE_BLOCK , DISPLAY_LIST_ITEM ,   DISPLAY_NONE , DISPLAY_TABLE , DISPLAY_TABLE_ROW_GROUP , DISPLAY_TABLE_HEADER_GROUP ,   DISPLAY_TABLE_FOOTER_GROUP , DISPLAY_TABLE_ROW , DISPLAY_TABLE_CELL }
enum	LineType { LINE_NORMAL , LINE_DOTTED , LINE_DASHED }
enum	ListStylePosition { LIST_STYLE_POSITION_INSIDE , LIST_STYLE_POSITION_OUTSIDE }
enum	ListStyleType {   LIST_STYLE_TYPE_DISC , LIST_STYLE_TYPE_CIRCLE , LIST_STYLE_TYPE_SQUARE , LIST_STYLE_TYPE_DECIMAL ,   LIST_STYLE_TYPE_DECIMAL_LEADING_ZERO , LIST_STYLE_TYPE_LOWER_ROMAN , LIST_STYLE_TYPE_UPPER_ROMAN , LIST_STYLE_TYPE_LOWER_GREEK ,   LIST_STYLE_TYPE_LOWER_ALPHA , LIST_STYLE_TYPE_LOWER_LATIN , LIST_STYLE_TYPE_UPPER_ALPHA , LIST_STYLE_TYPE_UPPER_LATIN ,   LIST_STYLE_TYPE_HEBREW , LIST_STYLE_TYPE_ARMENIAN , LIST_STYLE_TYPE_GEORGIAN , LIST_STYLE_TYPE_CJK_IDEOGRAPHIC ,   LIST_STYLE_TYPE_HIRAGANA , LIST_STYLE_TYPE_KATAKANA , LIST_STYLE_TYPE_HIRAGANA_IROHA , LIST_STYLE_TYPE_KATAKANA_IROHA ,   LIST_STYLE_TYPE_NONE }
enum	FontStyle { FONT_STYLE_NORMAL , FONT_STYLE_ITALIC , FONT_STYLE_OBLIQUE }
enum	FontVariant { FONT_VARIANT_NORMAL , FONT_VARIANT_SMALL_CAPS }
enum	Overflow { OVERFLOW_VISIBLE , OVERFLOW_HIDDEN , OVERFLOW_SCROLL , OVERFLOW_AUTO }
enum	Position { POSITION_STATIC , POSITION_RELATIVE , POSITION_ABSOLUTE , POSITION_FIXED }
enum	TextDecoration {   TEXT_DECORATION_NONE = 0 , TEXT_DECORATION_UNDERLINE = 1 << 0 , TEXT_DECORATION_OVERLINE = 1 << 1 , TEXT_DECORATION_LINE_THROUGH = 1 << 2 ,   TEXT_DECORATION_BLINK = 1 << 3 }
enum	WhiteSpace {   WHITE_SPACE_NORMAL , WHITE_SPACE_PRE , WHITE_SPACE_NOWRAP , WHITE_SPACE_PRE_WRAP ,   WHITE_SPACE_PRE_LINE }
enum	FloatType { FLOAT_NONE , FLOAT_LEFT , FLOAT_RIGHT }
enum	ClearType { CLEAR_LEFT , CLEAR_RIGHT , CLEAR_BOTH , CLEAR_NONE }
enum	{ Z_INDEX_AUTO = INT_MAX }
enum	{ LENGTH_AUTO = 0 }

Functions
static void	calcBackgroundRelatedValues (StyleImage *backgroundImage, BackgroundRepeat backgroundRepeat, BackgroundAttachment backgroundAttachment, Length backgroundPositionX, Length backgroundPositionY, int xDraw, int yDraw, int widthDraw, int heightDraw, int xRef, int yRef, int widthRef, int heightRef, bool *repeatX, bool *repeatY, int *origX, int *origY, int *tileX1, int *tileX2, int *tileY1, int *tileY2, bool *doDraw)
static void	drawBorderTop (View *view, Style *style, int x1, int y1, int x2, int y2)
static void	drawBorderBottom (View *view, Style *style, int x1, int y1, int x2, int y2)
static void	drawBorderLeft (View *view, Style *style, int x1, int y1, int x2, int y2)
static void	drawBorderRight (View *view, Style *style, int x1, int y1, int x2, int y2)
void	drawBorder (View *view, Layout *layout, Rectangle *area, int x, int y, int width, int height, Style *style, bool inverse)
	Draw the border of a region in window, according to style.
void	drawBackground (View *view, Layout *layout, Rectangle *area, int x, int y, int width, int height, int xRef, int yRef, int widthRef, int heightRef, Style *style, Color *bgColor, bool inverse, bool atTop)
	Draw the background (content plus padding) of a region in window, according to style.
void	drawBackgroundImage (View *view, StyleImage *backgroundImage, BackgroundRepeat backgroundRepeat, BackgroundAttachment backgroundAttachment, Length backgroundPositionX, Length backgroundPositionY, int x, int y, int width, int height, int xRef, int yRef, int widthRef, int heightRef)
static void	strAsciiTolower (char *s)
void	numtostr (int num, char *buf, int buflen, ListStyleType listStyleType)
	Convert a number into a string, in a given list style.
Length	createAbsLength (int n)
	Returns a length of n pixels.
Length	createPerLength (double v)
	Returns a percentage, v is relative to 1, not to 100.
Length	createRelLength (double v)
	Returns a relative length.
bool	isAbsLength (Length l)
	Returns true if l is an absolute length.
bool	isPerLength (Length l)
	Returns true if l is a percentage.
bool	isRelLength (Length l)
	Returns true if l is a relative length.
int	absLengthVal (Length l)
	Returns the value of a length in pixels, as an integer.
double	perLengthVal_useThisOnlyForDebugging (Length l)
	Returns the value of a percentage, relative to 1, as a double.
double	relLengthVal (Length l)
	Returns the value of a relative length, as a float.
int	multiplyWithPerLength (int x, Length l)
	Multiply an int with a percentage length, returning int.
int	multiplyWithPerLengthRounded (int x, Length l)
	Like multiplyWithPerLength, but rounds to nearest integer instead of down.
int	multiplyWithRelLength (int x, Length l)

Variables
const bool	drawBackgroundLineByLine = false
const int	MIN_BG_IMG_W = 10
const int	MIN_BG_IMG_H = 10
const int	OPT_BG_IMG_W = 50
const int	OPT_BG_IMG_H = 50
static const char *const	roman_I0 [] = { "","I","II","III","IV","V","VI","VII","VIII","IX" }
static const char *const *const	roman_I1 [] = { "","X","XX","XXX","XL","L","LX","LXX","LXXX","XC" }
static const char *const *const *const	roman_I2 [] = { "","C","CC","CCC","CD","D","DC","DCC","DCCC","CM" }
static const char *const *const *const *const	roman_I3 [] = { "","M","MM","MMM","MMMM" }

Detailed Description

Anything related to Dillo Widget styles is defined here.

Overview

dw::core::style::Style provides some resources and attributes for drawing widgets, as well as for parts of a widget (e.g., dw::Textblock uses styles for its words). Creating a style is done by filling a dw::core::style::StyleAttrs with the attributes and calling dw::core::style::Style::create:

dw::core::style::Style styleAttrs;
dw::core::style::Style *style;
dw::core::Layout *layout;
 
// ...
 
styleAttrs.foo = bar;
// etc.
style = dw::core::style::Style::create (&styleAttrs, layout);
// do something with style

After this, the attributes of a dw::core::style::Style should not be changed anymore, since styles are often shared between different widgets etc. (see below). Most times, you simply copy the attributes of another style (possible, since dw::core::style::Style is a sub class of dw::core::style::StyleAttrs), modify them and create a new style:

styleAttrs = *anotherStyle;
styleAttrs.foo = baz;
style = dw::core::style::Style::create (&styleAttrs, layout);

The dw::core::style::Font structure can be created by dw::core::style::Font::create, in a similar, with dw::core::style::FontAttrs, and colors by dw::core::style::Color::create, passing 0xrrggbb as an argument. Furthermore, there is dw::core::style::Tooltip, created by dw::core::style::Tooltip::create.

Notice that fonts, colors and tooltips are only intended to be used in conjunction with dw::core::style::Style.

Naming

dw::core::style::Style will become important for CSS, each CSS attribute, which is supported by dillo, will refer to an attribute in dw::core::style::Style. For this reason, the attributes in dw::core::style::Style get the names from the CSS attributes, with "camelCase" instead of hyphens (e.g. "background-color" becomes "backgroundColor").

However, dw::core::style::Style will be extended by some more attributes, which are not defined by CSS. To distinguish them, they get the prefix "x_", e.g. dw::core::style::Style::x_link.

Lengths and Percentages

dw::core::style::Length is a simple data type for lengths and percentages:

• A length refers to an absolute measurement. It is used to represent the HTML type Pixels; and the CSS type <length>.

  For CSS lengths, there are two units: (i) pixels and absolute units, which have to be converted to pixels (a pixel is, unlike in the CSS specification, treated as absolute unit), and (ii) the relative units "em" and "ex" (see below).

• A percentage refers to a value relative to another value. It is used for the HTML type Length; (except Pixels;), and the CSS type <percentage>.

• A relative length can be used in lists of HTML MultiLengths.

Since many values in CSS may be either lengths or percentages, a single type is very useful.

Useful Functions

Creating lengths:

• dw::core::style::createAbsLength
• dw::core::style::createPerLength
• dw::core::style::createRelLength

Examine lengths:

• dw::core::style::isAbsLength
• dw::core::style::isPerLength
• dw::core::style::isRelLength
• dw::core::style::absLengthVal
• dw::core::style::perLengthVal
• dw::core::style::relLengthVal

Boxes

The CSS Box Model

For borders, margins etc., the box model defined by CSS2 is used. dw::core::style::Style contains some members defining these attributes. A dw::core::Widget must use these values for any calculation of sizes. There are some helper functions (see dw/style.hh). A dw::core::style::Style box looks quite similar to a CSS box:

Background colors

The background color is stored in dw::core::style::Style::backgroundColor, which may be NULL (the background color of the parent widget is shining through).

For toplevel widgets, this color is set as the background color of the views (dw::core::View::setBgColor), for other widgets, a filled rectangle is drawn, covering the content and padding. (This is compliant with CSS2, the background color of the toplevel element covers the whole canvas.)

Drawing

The following methods may be useful:

• dw::core::Widget::drawWidgetBox for drawing the box of a widget (typically at the beginning of the implementation of dw::core::Widget::draw), and

• dw::core::Widget::drawBox, for drawing parts of a widget (e.g. dw::Textblock::Word, which has its own dw::Textblock::Word::style).

Notes on Memory Management

Memory management is done by reference counting, dw::core::style::Style::create returns a pointer to dw::core::style::Style with an increased reference counter, so you should care about calling dw::core::style::Style::unref if it is not used anymore. You do not need to care about the reference counters of fonts and styles.

In detail:

• dw::core::style::Style::ref is called in

  • dw::core::Widget::setStyle to assign a style to a widget,
  • dw::Textblock::addText, dw::Textblock::addWidget, dw::Textblock::addAnchor, dw::Textblock::addSpace, dw::Textblock::addParbreak and dw::Textblock::addLinebreak, to assign a style to a dw::Textblock::Word, and
  • by the HTML parser, when pushing an element on the stack.

• dw::core::style::Style::unref is called in

  • dw::core::Widget::~Widget, dw::Textblock::~Textblock, by the HTML parser, when popping an element fom the stack, and
  • dw::core::Widget::setStyle, dw::Textblock::addText etc., these methods overwrite an existing style.

Typedef Documentation

Length

typedef int dw::core::style::Length

Type for representing all lengths within dw::core::style.

Lengths are int's. Absolute lengths are represented in the following way:

Percentages:

Relative lengths (only used in HTML):

This is an implementation detail, use one of the following functions:

Creating lengths:

• dw::core::style::createAbsLength
• dw::core::style::createPerLength
• dw::core::style::createRelLength

Examine lengths:

• dw::core::style::isAbsLength
• dw::core::style::isPerLength
• dw::core::style::isRelLength
• dw::core::style::absLengthVal
• dw::core::style::perLengthVal
• dw::core::style::relLengthVal

"auto" lengths are represented as dw::core::style::LENGTH_AUTO.

Definition at line 428 of file style.hh.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
Z_INDEX_AUTO	'z-index' is stored as int; use this for the value 'auto'. Only some random value, which has to be checked explicitly; do not compare this (less or greater) to integer values of 'z-index'.

Definition at line 379 of file style.hh.

anonymous enum

anonymous enum

Enumerator
LENGTH_AUTO	Represents "auto" lengths.

Definition at line 492 of file style.hh.

BackgroundAttachment

enum dw::core::style::BackgroundAttachment

Enumerator
BACKGROUND_ATTACHMENT_SCROLL
BACKGROUND_ATTACHMENT_FIXED

Definition at line 243 of file style.hh.

BackgroundRepeat

enum dw::core::style::BackgroundRepeat

Enumerator
BACKGROUND_REPEAT
BACKGROUND_REPEAT_X
BACKGROUND_REPEAT_Y
BACKGROUND_NO_REPEAT

Definition at line 236 of file style.hh.

BorderCollapse

enum dw::core::style::BorderCollapse

Enumerator
BORDER_MODEL_SEPARATE
BORDER_MODEL_COLLAPSE

Definition at line 218 of file style.hh.

BorderStyle

enum dw::core::style::BorderStyle

Enumerator
BORDER_NONE
BORDER_HIDDEN
BORDER_DOTTED
BORDER_DASHED
BORDER_SOLID
BORDER_DOUBLE
BORDER_GROOVE
BORDER_RIDGE
BORDER_INSET
BORDER_OUTSET

Definition at line 223 of file style.hh.

ClearType

enum dw::core::style::ClearType

Enumerator
CLEAR_LEFT
CLEAR_RIGHT
CLEAR_BOTH
CLEAR_NONE

Definition at line 372 of file style.hh.

Cursor

enum dw::core::style::Cursor

Enumerator
CURSOR_CROSSHAIR
CURSOR_DEFAULT
CURSOR_POINTER
CURSOR_MOVE
CURSOR_E_RESIZE
CURSOR_NE_RESIZE
CURSOR_NW_RESIZE
CURSOR_N_RESIZE
CURSOR_SE_RESIZE
CURSOR_SW_RESIZE
CURSOR_S_RESIZE
CURSOR_W_RESIZE
CURSOR_TEXT
CURSOR_WAIT
CURSOR_HELP

Definition at line 200 of file style.hh.

DisplayType

enum dw::core::style::DisplayType

Todo:

Incomplete. Has to be completed for a CSS implementation.

Enumerator
DISPLAY_BLOCK
DISPLAY_INLINE
DISPLAY_INLINE_BLOCK
DISPLAY_LIST_ITEM
DISPLAY_NONE
DISPLAY_TABLE
DISPLAY_TABLE_ROW_GROUP
DISPLAY_TABLE_HEADER_GROUP
DISPLAY_TABLE_FOOTER_GROUP
DISPLAY_TABLE_ROW
DISPLAY_TABLE_CELL

Definition at line 277 of file style.hh.

FloatType

enum dw::core::style::FloatType

Enumerator
FLOAT_NONE
FLOAT_LEFT
FLOAT_RIGHT

Definition at line 366 of file style.hh.

FontStyle

enum dw::core::style::FontStyle

Enumerator
FONT_STYLE_NORMAL
FONT_STYLE_ITALIC
FONT_STYLE_OBLIQUE

Definition at line 325 of file style.hh.

FontVariant

enum dw::core::style::FontVariant

Enumerator
FONT_VARIANT_NORMAL
FONT_VARIANT_SMALL_CAPS

Definition at line 331 of file style.hh.

LineType

enum dw::core::style::LineType

Enumerator
LINE_NORMAL
LINE_DOTTED
LINE_DASHED

Definition at line 291 of file style.hh.

ListStylePosition

enum dw::core::style::ListStylePosition

Enumerator
LIST_STYLE_POSITION_INSIDE
LIST_STYLE_POSITION_OUTSIDE

Definition at line 297 of file style.hh.

ListStyleType

enum dw::core::style::ListStyleType

Enumerator
LIST_STYLE_TYPE_DISC
LIST_STYLE_TYPE_CIRCLE
LIST_STYLE_TYPE_SQUARE
LIST_STYLE_TYPE_DECIMAL
LIST_STYLE_TYPE_DECIMAL_LEADING_ZERO
LIST_STYLE_TYPE_LOWER_ROMAN
LIST_STYLE_TYPE_UPPER_ROMAN
LIST_STYLE_TYPE_LOWER_GREEK
LIST_STYLE_TYPE_LOWER_ALPHA
LIST_STYLE_TYPE_LOWER_LATIN
LIST_STYLE_TYPE_UPPER_ALPHA
LIST_STYLE_TYPE_UPPER_LATIN
LIST_STYLE_TYPE_HEBREW
LIST_STYLE_TYPE_ARMENIAN
LIST_STYLE_TYPE_GEORGIAN
LIST_STYLE_TYPE_CJK_IDEOGRAPHIC
LIST_STYLE_TYPE_HIRAGANA
LIST_STYLE_TYPE_KATAKANA
LIST_STYLE_TYPE_HIRAGANA_IROHA
LIST_STYLE_TYPE_KATAKANA_IROHA
LIST_STYLE_TYPE_NONE

Definition at line 301 of file style.hh.

Overflow

enum dw::core::style::Overflow

Enumerator
OVERFLOW_VISIBLE
OVERFLOW_HIDDEN
OVERFLOW_SCROLL
OVERFLOW_AUTO

Definition at line 336 of file style.hh.

Position

enum dw::core::style::Position

Enumerator
POSITION_STATIC
POSITION_RELATIVE
POSITION_ABSOLUTE
POSITION_FIXED

Definition at line 343 of file style.hh.

TextAlignType

enum dw::core::style::TextAlignType

Enumerator
TEXT_ALIGN_LEFT
TEXT_ALIGN_RIGHT
TEXT_ALIGN_CENTER
TEXT_ALIGN_JUSTIFY
TEXT_ALIGN_STRING

Definition at line 248 of file style.hh.

TextDecoration

enum dw::core::style::TextDecoration

Enumerator
TEXT_DECORATION_NONE
TEXT_DECORATION_UNDERLINE
TEXT_DECORATION_OVERLINE
TEXT_DECORATION_LINE_THROUGH
TEXT_DECORATION_BLINK

Definition at line 350 of file style.hh.

TextTransform

enum dw::core::style::TextTransform

Enumerator
TEXT_TRANSFORM_NONE
TEXT_TRANSFORM_CAPITALIZE
TEXT_TRANSFORM_UPPERCASE
TEXT_TRANSFORM_LOWERCASE

Definition at line 267 of file style.hh.

VAlignType

enum dw::core::style::VAlignType

Enumerator
VALIGN_TOP
VALIGN_BOTTOM
VALIGN_MIDDLE
VALIGN_BASELINE
VALIGN_SUB
VALIGN_SUPER
VALIGN_TEXT_TOP
VALIGN_TEXT_BOTTOM

Definition at line 256 of file style.hh.

WhiteSpace

enum dw::core::style::WhiteSpace

Enumerator
WHITE_SPACE_NORMAL
WHITE_SPACE_PRE
WHITE_SPACE_NOWRAP
WHITE_SPACE_PRE_WRAP
WHITE_SPACE_PRE_LINE

Definition at line 358 of file style.hh.

Function Documentation

absLengthVal()

int dw::core::style::absLengthVal ( Length  l )

inline

Returns the value of a length in pixels, as an integer.

Definition at line 451 of file style.hh.

Referenced by calcBackgroundRelatedValues(), dw::core::Widget::calcHeight(), dw::oof::OOFPosAbsLikeMgr::calcHPosAndSizeChildOfChild(), dw::Textblock::calcTextSize(), dw::oof::OOFPosAbsLikeMgr::calcVPosAndSizeChildOfChild(), dw::core::Widget::calcWidth(), dw::core::Widget::getAvailHeight(), dw::core::Widget::getAvailHeightOfChild(), dw::oof::OOFPositionedMgr::getPosBorder(), and dw::Textblock::initLine1Offset().

calcBackgroundRelatedValues()

void dw::core::style::calcBackgroundRelatedValues ( StyleImage *  backgroundImage, BackgroundRepeat  backgroundRepeat, BackgroundAttachment  backgroundAttachment, Length  backgroundPositionX, Length  backgroundPositionY, int  xDraw, int  yDraw, int  widthDraw, int  heightDraw, int  xRef, int  yRef, int  widthRef, int  heightRef, bool *  repeatX, bool *  repeatY, int *  origX, int *  origY, int *  tileX1, int *  tileX2, int *  tileY1, int *  tileY2, bool *  doDraw  )

static

Definition at line 1340 of file style.cc.

References absLengthVal(), BACKGROUND_REPEAT, BACKGROUND_REPEAT_X, BACKGROUND_REPEAT_Y, dw::core::style::StyleImage::getImgbufSrc(), dw::core::Imgbuf::getRootWidth(), imgbuf, isPerLength(), and multiplyWithPerLength().

Referenced by drawBackgroundImage(), and dw::core::style::StyleImage::ExternalImgRenderer::drawRow().

createAbsLength()

Length dw::core::style::createAbsLength ( int  n )

inline

Returns a length of n pixels.

Definition at line 431 of file style.hh.

Referenced by StyleEngine::apply(), StyleEngine::computeLength(), and main().

createPerLength()

Length dw::core::style::createPerLength ( double  v )

inline

Returns a percentage, v is relative to 1, not to 100.

Definition at line 434 of file style.hh.

Referenced by a_Web_dispatch_by_type(), StyleEngine::apply(), StyleEngine::computeLength(), dw::core::style::StyleImage::ExternalWidgetImgRenderer::getBackgroundPositionX(), dw::core::style::StyleImage::ExternalWidgetImgRenderer::getBackgroundPositionY(), dw::core::style::StyleAttrs::initValues(), main(), dw::core::style::StyleAttrs::resetValues(), and UIcmd_tab_new().

createRelLength()

Length dw::core::style::createRelLength ( double  v )

inline

Returns a relative length.

Definition at line 438 of file style.hh.

drawBackground()

void dw::core::style::drawBackground	(	View *	view,
		Layout *	layout,
		Rectangle *	area,
		int	x,
		int	y,
		int	width,
		int	height,
		int	xRef,
		int	yRef,
		int	widthRef,
		int	heightRef,
		Style *	style,
		Color *	bgColor,
		bool	inverse,
		bool	atTop
	)

Draw the background (content plus padding) of a region in window, according to style.

Used by dw::core::Widget::drawBox and dw::core::Widget::drawWidgetBox.

"area" is the area to be drawn, "x", "y", "width" and "height" define the box itself (padding box). "xRef", "yRef", "widthRef" and "heightRef" define the reference area, which is important for the tiling of background images (for position 0%/0%, a tile is set at xRef/yRef; for position 100%/100%, a tile is set at xRef + widthRef/yRef + widthRef). See calls for more informations; in most cases, these boxes are identical (padding box). All these coordinates are given in canvas coordinates.

"atTop" should be true, only if the area is drawn directly on the canvas, not on top of other areas; this is only true for the toplevel widget itself (not parts of its contents). Toplevel widget background colors are already set as viewport background color, so that drawing again is is not neccessary, but some time can be saved.

Otherwise, the caller should not try to increase the performance by doing some tests before; this is all done in this method.

"bgColor" is passes implicitly. For non-inversed drawing, style->backgroundColor may simply used. However, when drawing is inversed, and style->backgroundColor is undefined (NULL), a background color defined higher in the hierarchy (which is not accessable here) must be used.

(Background images are never drawn inverse.)

Definition at line 1233 of file style.cc.

References dw::core::style::StyleAttrs::backgroundAttachment, dw::core::style::StyleAttrs::backgroundImage, dw::core::style::StyleAttrs::backgroundPositionX, dw::core::style::StyleAttrs::backgroundPositionY, dw::core::style::StyleAttrs::backgroundRepeat, drawBackgroundImage(), dw::core::View::drawRectangle(), dw::core::style::StyleImage::getImgbufSrc(), dw::core::Rectangle::height, dw::core::Rectangle::intersectsWith(), layout, dw::core::style::Color::SHADING_INVERSE, dw::core::style::Color::SHADING_NORMAL, dw::core::Rectangle::width, dw::core::Rectangle::x, and dw::core::Rectangle::y.

Referenced by dw::core::Widget::drawBox(), and dw::core::Widget::drawWidgetBox().

drawBackgroundImage()

void dw::core::style::drawBackgroundImage	(	View *	view,
		StyleImage *	backgroundImage,
		BackgroundRepeat	backgroundRepeat,
		BackgroundAttachment	backgroundAttachment,
		Length	backgroundPositionX,
		Length	backgroundPositionY,
		int	x,
		int	y,
		int	width,
		int	height,
		int	xRef,
		int	yRef,
		int	widthRef,
		int	heightRef
	)

Definition at line 1286 of file style.cc.

References calcBackgroundRelatedValues(), dw::core::View::drawImage(), dw::core::style::StyleImage::getImgbufSrc(), dw::core::style::StyleImage::getImgbufTiled(), dw::core::Imgbuf::getRootHeight(), dw::core::Imgbuf::getRootWidth(), dw::core::style::StyleImage::getTilesX(), dw::core::style::StyleImage::getTilesY(), lout::misc::max(), lout::misc::min(), dw::core::style::StyleImage::tilesX, and dw::core::style::StyleImage::tilesY.

Referenced by dw::core::Layout::draw(), and drawBackground().

drawBorder()

void dw::core::style::drawBorder	(	View *	view,
		Layout *	layout,
		Rectangle *	area,
		int	x,
		int	y,
		int	width,
		int	height,
		Style *	style,
		bool	inverse
	)

Draw the border of a region in window, according to style.

Used by dw::core::Widget::drawBox and dw::core::Widget::drawWidgetBox.

"area" is the area to be drawn, "x", "y", "width" and "height" define the box itself. All are given in canvas coordinates.

Todo:

a lot!

Definition at line 1168 of file style.cc.

References dw::core::style::Box::bottom, drawBorderBottom(), drawBorderLeft(), drawBorderRight(), drawBorderTop(), dw::core::style::Box::left, dw::core::style::StyleAttrs::margin, dw::core::style::Box::right, and dw::core::style::Box::top.

Referenced by dw::core::Widget::drawBox(), and dw::core::Widget::drawWidgetBox().

drawBorderBottom()

static void dw::core::style::drawBorderBottom ( View *  view, Style *  style, int  x1, int  y1, int  x2, int  y2  )

static

Definition at line 858 of file style.cc.

References BORDER_DASHED, BORDER_DOTTED, BORDER_DOUBLE, BORDER_GROOVE, BORDER_HIDDEN, BORDER_INSET, BORDER_NONE, BORDER_OUTSET, BORDER_RIDGE, BORDER_SOLID, dw::core::style::StyleAttrs::borderColor, dw::core::style::StyleAttrs::borderStyle, dw::core::style::StyleAttrs::borderWidth, dw::core::style::Box::bottom, dw::core::style::StyleAttrs::bottom, dw::core::View::drawLine(), dw::core::View::drawPolygon(), dw::core::View::drawTypedLine(), dw::core::style::Box::left, LINE_DASHED, LINE_DOTTED, dw::core::style::Box::right, dw::core::style::Color::SHADING_DARK, dw::core::style::Color::SHADING_LIGHT, dw::core::style::Color::SHADING_NORMAL, dw::core::Point::x, and dw::core::Point::y.

Referenced by drawBorder().

drawBorderLeft()

static void dw::core::style::drawBorderLeft ( View *  view, Style *  style, int  x1, int  y1, int  x2, int  y2  )

static

Definition at line 960 of file style.cc.

References BORDER_DASHED, BORDER_DOTTED, BORDER_DOUBLE, BORDER_GROOVE, BORDER_HIDDEN, BORDER_INSET, BORDER_NONE, BORDER_OUTSET, BORDER_RIDGE, BORDER_SOLID, dw::core::style::StyleAttrs::borderColor, dw::core::style::StyleAttrs::borderStyle, dw::core::style::StyleAttrs::borderWidth, dw::core::style::Box::bottom, dw::core::View::drawLine(), dw::core::View::drawPolygon(), dw::core::View::drawTypedLine(), dw::core::style::Box::left, dw::core::style::StyleAttrs::left, LINE_DASHED, LINE_DOTTED, dw::core::style::Color::SHADING_DARK, dw::core::style::Color::SHADING_LIGHT, dw::core::style::Color::SHADING_NORMAL, dw::core::style::Box::top, dw::core::Point::x, and dw::core::Point::y.

Referenced by drawBorder().

drawBorderRight()

static void dw::core::style::drawBorderRight ( View *  view, Style *  style, int  x1, int  y1, int  x2, int  y2  )

static

Definition at line 1060 of file style.cc.

References BORDER_DASHED, BORDER_DOTTED, BORDER_DOUBLE, BORDER_GROOVE, BORDER_HIDDEN, BORDER_INSET, BORDER_NONE, BORDER_OUTSET, BORDER_RIDGE, BORDER_SOLID, dw::core::style::StyleAttrs::borderColor, dw::core::style::StyleAttrs::borderStyle, dw::core::style::StyleAttrs::borderWidth, dw::core::style::Box::bottom, dw::core::View::drawLine(), dw::core::View::drawPolygon(), dw::core::View::drawTypedLine(), LINE_DASHED, LINE_DOTTED, dw::core::style::Box::right, dw::core::style::StyleAttrs::right, dw::core::style::Color::SHADING_DARK, dw::core::style::Color::SHADING_LIGHT, dw::core::style::Color::SHADING_NORMAL, dw::core::style::Box::top, dw::core::Point::x, and dw::core::Point::y.

Referenced by drawBorder().

drawBorderTop()

static void dw::core::style::drawBorderTop ( View *  view, Style *  style, int  x1, int  y1, int  x2, int  y2  )

static

Definition at line 758 of file style.cc.

References BORDER_DASHED, BORDER_DOTTED, BORDER_DOUBLE, BORDER_GROOVE, BORDER_HIDDEN, BORDER_INSET, BORDER_NONE, BORDER_OUTSET, BORDER_RIDGE, BORDER_SOLID, dw::core::style::StyleAttrs::borderColor, dw::core::style::StyleAttrs::borderStyle, dw::core::style::StyleAttrs::borderWidth, dw::core::View::drawLine(), dw::core::View::drawPolygon(), dw::core::View::drawTypedLine(), dw::core::style::Box::left, LINE_DASHED, LINE_DOTTED, dw::core::style::Box::right, dw::core::style::Color::SHADING_DARK, dw::core::style::Color::SHADING_LIGHT, dw::core::style::Color::SHADING_NORMAL, dw::core::style::Box::top, dw::core::style::StyleAttrs::top, dw::core::Point::x, and dw::core::Point::y.

Referenced by drawBorder().

isAbsLength()

bool dw::core::style::isAbsLength ( Length  l )

inline

Returns true if l is an absolute length.

Definition at line 442 of file style.hh.

Referenced by dw::core::Widget::affectedByContainerSizeChange(), dw::core::Widget::affectsSizeChangeContainerChild(), dw::core::Widget::calcHeight(), dw::oof::OOFPosAbsLikeMgr::calcHPosAndSizeChildOfChild(), dw::Textblock::calcTextSize(), dw::oof::OOFPosAbsLikeMgr::calcVPosAndSizeChildOfChild(), dw::core::Widget::calcWidth(), dw::core::Widget::getAvailHeight(), dw::core::Widget::getAvailHeightOfChild(), dw::oof::OOFPositionedMgr::getPosBorder(), dw::oof::OOFPosAbsLikeMgr::posXAbsolute(), and dw::oof::OOFPosAbsLikeMgr::posYAbsolute().

isPerLength()

bool dw::core::style::isPerLength ( Length  l )

inline

Returns true if l is a percentage.

Definition at line 445 of file style.hh.

Referenced by dw::core::Widget::affectedByContainerSizeChange(), dw::core::Widget::affectsSizeChangeContainerChild(), calcBackgroundRelatedValues(), dw::core::Widget::calcHeight(), dw::oof::OOFPosAbsLikeMgr::calcHPosAndSizeChildOfChild(), dw::oof::OOFPosAbsLikeMgr::calcVPosAndSizeChildOfChild(), dw::core::Widget::calcWidth(), dw::core::ui::ComplexButtonResource::correctExtremesOfChild(), dw::core::ui::ComplexButtonResource::correctRequisitionOfChild(), dw::Table::forceCalcColumnExtremes(), dw::core::Widget::getAvailHeight(), dw::core::Widget::getAvailHeightOfChild(), dw::Image::getExtremesSimpl(), dw::oof::OOFPositionedMgr::getPosBorder(), dw::Textblock::initLine1Offset(), dw::oof::OOFPosAbsLikeMgr::posXAbsolute(), and dw::oof::OOFPosAbsLikeMgr::posYAbsolute().

isRelLength()

bool dw::core::style::isRelLength ( Length  l )

inline

Returns true if l is a relative length.

Definition at line 448 of file style.hh.

multiplyWithPerLength()

int dw::core::style::multiplyWithPerLength ( int  x, Length  l  )

inline

Multiply an int with a percentage length, returning int.

Use this instead of perLengthVal, when possible.

Definition at line 473 of file style.hh.

References perLengthVal_useThisOnlyForDebugging().

Referenced by dw::tablecell::applyPerHeight(), dw::Table::applyPerHeight(), dw::core::Widget::applyPerHeight(), dw::tablecell::applyPerWidth(), dw::Table::applyPerWidth(), dw::core::Widget::applyPerWidth(), calcBackgroundRelatedValues(), dw::oof::OOFPosAbsLikeMgr::calcHPosAndSizeChildOfChild(), dw::oof::OOFPosAbsLikeMgr::calcVPosAndSizeChildOfChild(), and dw::oof::OOFPositionedMgr::getPosBorder().

multiplyWithPerLengthRounded()

int dw::core::style::multiplyWithPerLengthRounded ( int  x, Length  l  )

inline

Like multiplyWithPerLength, but rounds to nearest integer instead of down.

(This function exists for backward compatibility.)

Definition at line 483 of file style.hh.

References perLengthVal_useThisOnlyForDebugging(), and lout::misc::roundInt().

Referenced by dw::Textblock::calcTextSize(), and dw::Textblock::initLine1Offset().

multiplyWithRelLength()

int dw::core::style::multiplyWithRelLength ( int  x, Length  l  )

inline

Definition at line 487 of file style.hh.

References relLengthVal().

numtostr()

void dw::core::style::numtostr	(	int	num,
		char *	buf,
		int	buflen,
		ListStyleType	listStyleType
	)

Convert a number into a string, in a given list style.

Used for ordered lists.

Definition at line 1422 of file style.cc.

References LIST_STYLE_TYPE_DECIMAL, LIST_STYLE_TYPE_LOWER_ALPHA, LIST_STYLE_TYPE_LOWER_LATIN, LIST_STYLE_TYPE_LOWER_ROMAN, LIST_STYLE_TYPE_UPPER_ALPHA, LIST_STYLE_TYPE_UPPER_LATIN, LIST_STYLE_TYPE_UPPER_ROMAN, roman_I0, roman_I1, roman_I2, roman_I3, and strAsciiTolower().

Referenced by Html_display_listitem().

perLengthVal_useThisOnlyForDebugging()

double dw::core::style::perLengthVal_useThisOnlyForDebugging ( Length  l )

inline

Returns the value of a percentage, relative to 1, as a double.

When possible, do not use this function directly; it may be removed soon. Instead, use multiplyWithPerLength or multiplyWithPerLengthRounded.

Definition at line 458 of file style.hh.

Referenced by dw::core::Widget::calcHeight(), dw::oof::OOFPosAbsLikeMgr::calcHPosAndSizeChildOfChild(), dw::oof::OOFPosAbsLikeMgr::calcVPosAndSizeChildOfChild(), dw::core::Widget::calcWidth(), dw::core::Widget::getAvailHeight(), dw::core::Widget::getAvailHeightOfChild(), multiplyWithPerLength(), and multiplyWithPerLengthRounded().

relLengthVal()

double dw::core::style::relLengthVal ( Length  l )

inline

Returns the value of a relative length, as a float.

When possible, do not use this function directly; it may be removed soon.

Definition at line 466 of file style.hh.

Referenced by multiplyWithRelLength().

strAsciiTolower()

static void dw::core::style::strAsciiTolower ( char *  s )

static

Definition at line 1411 of file style.cc.

References lout::misc::AsciiTolower().

Referenced by numtostr().

Variable Documentation

drawBackgroundLineByLine

const bool dw::core::style::drawBackgroundLineByLine = false

Definition at line 36 of file style.cc.

Referenced by dw::core::style::StyleImage::ExternalImgRenderer::drawRow(), and dw::core::style::StyleImage::ExternalImgRenderer::finish().

MIN_BG_IMG_H

const int dw::core::style::MIN_BG_IMG_H = 10

Definition at line 39 of file style.cc.

Referenced by dw::core::style::StyleImage::StyleImgRenderer::setBuffer().

MIN_BG_IMG_W

const int dw::core::style::MIN_BG_IMG_W = 10

Definition at line 38 of file style.cc.

Referenced by dw::core::style::StyleImage::StyleImgRenderer::setBuffer().

OPT_BG_IMG_H

const int dw::core::style::OPT_BG_IMG_H = 50

Definition at line 41 of file style.cc.

Referenced by dw::core::style::StyleImage::StyleImgRenderer::setBuffer().

OPT_BG_IMG_W

const int dw::core::style::OPT_BG_IMG_W = 50

Definition at line 40 of file style.cc.

Referenced by dw::core::style::StyleImage::StyleImgRenderer::setBuffer().

roman_I0

const char* const dw::core::style::roman_I0[] = { "","I","II","III","IV","V","VI","VII","VIII","IX" }

static

Definition at line 1406 of file style.cc.

Referenced by numtostr().

roman_I1

const char* const * const dw::core::style::roman_I1[] = { "","X","XX","XXX","XL","L","LX","LXX","LXXX","XC" }

static

Definition at line 1407 of file style.cc.

Referenced by numtostr().

roman_I2

const char* const * const * const dw::core::style::roman_I2[] = { "","C","CC","CCC","CD","D","DC","DCC","DCCC","CM" }

static

Definition at line 1408 of file style.cc.

Referenced by numtostr().

roman_I3

const char* const * const * const * const dw::core::style::roman_I3[] = { "","M","MM","MMM","MMMM" }

static

Definition at line 1409 of file style.cc.

Referenced by numtostr().