fgl::FGDrawBuffer Class Reference

#include <base.h>

Inheritance diagram for fgl::FGDrawBuffer:

[legend]Collaboration diagram for fgl::FGDrawBuffer:

[legend]List of all members.

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Detailed Description

A base drawing object. This object is used as a parent for the all graphics stuff. You can use this one for in-memory drawing and after drawing complete update the screen with contents of this object.

Examples:

alpha.cpp, and mandel.cpp.

Public Types
enum	ObjectType {   WINDOW = 0x4000, CHECKBUTTON, PUSHBUTTON, POINTBUTTON, EDITBOX, PROGRESSBAR,   BASEMENU, BASEMENUITEM, MENUWINDOW, SLIDEBAR, MULTILINEEDIT, LISTBOX,   LABEL, WINDOWPANEL, BMP_FILE, BMP_IMAGE, BMP_MEM, ROOTWINDOW,   FGFRAMEBUFFER, COMBOBOX, WINDOWTEXT, WINDOWIMAGE, PUSHBUTTON_IMAGE, BMP_NONE = 0 }
Public Member Functions
void	save_state (void)
void	restore_state (void)
FGPixel *__fastcall	CalcAddr (int x, int y)
void __fastcall	Resize (int dx, int dy)
long __fastcall	GetStatus (void) const
void __fastcall	set_font (int font_id)
int __fastcall	get_font (void)
int __fastcall	textwidth (const char *text)
int __fastcall	textwidth (char *txt, int cnt)
int __fastcall	charwidth (int c)
int __fastcall	GetFontW (void)
int __fastcall	GetFontH (void)
unsigned __fastcall	set_ppop (unsigned op)
void __fastcall	set_fcolor (FGPixel val)
void __fastcall	set_bcolor (FGPixel val)
void __fastcall	set_colors (FGPixel i, FGPixel p)
int __fastcall	GetId (void) const
bool __fastcall	set_clip_rect (int xx, int yy, int ww, int hh)
void __fastcall	get_clip_rect (int &x, int &y, int &w, int &h)
	FGDrawBuffer (int ww=0, int hh=0, ObjectType=BMP_MEM, int color=CBLACK, FGPixel *buf=0)
	FGDrawBuffer (int ww, int hh, FGPixel *buf)
	FGDrawBuffer (FGDrawBuffer &)
virtual	~FGDrawBuffer ()
int __fastcall	bitblit (int xdst, int ydst, int xsrc, int ysrc, int ww, int hh, class FGDrawBuffer *src, int opcia=BITBLIT_COPY)
int __fastcall	hline (int x, int y, int size, FGPixel color)
int __fastcall	vline (int x, int y, int size, FGPixel color)
void __fastcall	moveto (int x, int y)
int __fastcall	line (int x, int y, int x2, int y2, unsigned color=UNDEFINED_COLOR)
int __fastcall	lineto (int x, int y, unsigned color=UNDEFINED_COLOR)
int __fastcall	pline (int x1, int y1, int x2, int y2, FGPattern *p)
void __fastcall	spline (FGPoint points[4], unsigned color=UNDEFINED_COLOR)
int __fastcall	rect (int xdst, int ydst, int ww, int hh, unsigned color=UNDEFINED_COLOR)
int __fastcall	box (int xdst, int ydst, int ww, int hh, unsigned color=UNDEFINED_COLOR)
int __fastcall	text (int x, int y, const char *txt, unsigned i=UNDEFINED_COLOR, unsigned p=UNDEFINED_COLOR)
int	printf (int, int, const char *,...)
int __fastcall	putpixel (int x, int y, unsigned color=UNDEFINED_COLOR)
int __fastcall	getpixel (int x, int y)
void __fastcall	stretch (int _w, int _h)
void __fastcall	stretch (double ratiox, double ratioy)
int __fastcall	arc (int x, int y, double ang1, double ang2, int r, unsigned color=UNDEFINED_COLOR)
int __fastcall	arc2 (int x, int y, int ang1, int ang2, int r, unsigned color=UNDEFINED_COLOR)
int __fastcall	ellipse (int x, int y, int rx, int ry, unsigned color=UNDEFINED_COLOR)
int __fastcall	fellipse (int x, int y, int rx, int ry, unsigned color=UNDEFINED_COLOR)
int __fastcall	circle (int xs, int ys, int r, unsigned color=UNDEFINED_COLOR)
int __fastcall	fcircle (int xs, int ys, int r, unsigned color=UNDEFINED_COLOR)
void __fastcall	polygon (const FGPointArray &vertices, unsigned color=UNDEFINED_COLOR)
FGRect __fastcall	fpolygon (const FGPointArray &vertices, unsigned color=UNDEFINED_COLOR)
FGRect __fastcall	ftriangle (int x1, int y1, int x2, int y2, int x3, int y3, unsigned color=UNDEFINED_COLOR)
FGPixel *__fastcall	GetArray (void) const
unsigned __fastcall	GetAlpha (void) const
FGPixel __fastcall	GetInk (void) const
FGPixel __fastcall	GetPaper (void) const
int __fastcall	GetW (void) const
int __fastcall	GetH (void) const
int __fastcall	GetXW (void) const
int __fastcall	GetYW (void) const
int __fastcall	GetWW (void) const
int __fastcall	GetHW (void) const
enum ObjectType __fastcall	GetType (void) const
unsigned __fastcall	GetColorKey (void) const
char *__fastcall	GetName (void) const
void __fastcall	SetColorKey (unsigned ck)
void __fastcall	SetName (const char *s)
void __fastcall	SetAlpha (unsigned a)
void __fastcall	clear (int color)
void __fastcall	rotate (ENUM_ROTATE_DIRECTION direction)
Protected Member Functions
FGPixel *__fastcall	SetArray (FGPixel *array)
	FGDrawBuffer (int ww, int hh, const char *nm, ObjectType t, FGPixel i, FGPixel p)
void __fastcall	SetStatus (long s)
int __fastcall	clip (int &xr, int &yr, int &wr, int &hr)
int __fastcall	clip_shape (int &xr, int &yr, int &wr, int &hr)
void __fastcall	modify_point (FGPixel *ptr, FGPixel ink)
void	__line (int, int, int, int, unsigned color)
Static Protected Member Functions
static int __fastcall	GetCounter (void)
Protected Attributes
int	w
int	h
int	xoff
int	yoff
int	wwrk
int	hwrk
unsigned long	status
FGMutex	clip_lock
FGPixel *	image
char *	name
internal_state	state
internal_state	state_backup
bool	state_saved
ObjectType	type
int	_asd
Static Protected Attributes
static const char *	empty_string = ""
static int	oldx
static int	oldy

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Constructor & Destructor Documentation

fgl::FGDrawBuffer::FGDrawBuffer (  int  ww = 0, int  hh = 0, ObjectType  t = BMP_MEM, int  color = CBLACK, FGPixel *  buf = 0 )

Creates the object with specified size, type, color layout or already existing pixel data.

fgl::FGDrawBuffer::FGDrawBuffer (  int  ww, int  hh, FGPixel *  buf )

Create a DRAWBUFFER object. Parameter 'ww' and 'hh' are width and height of rectangle, 'buf' is pointed to the image data taht will be copied into created object.

fgl::FGDrawBuffer::FGDrawBuffer (  FGDrawBuffer &   )

Makes the deep copy of object.

fgl::FGDrawBuffer::~FGDrawBuffer (   )  [virtual]

Release object's members.

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Member Function Documentation

int __fastcall fgl::FGDrawBuffer::arc (  int  x, int  y, double  ang1, double  ang2, int  r, unsigned  color = UNDEFINED_COLOR )

Draws a circular arc with centre x, y and radius r, in an anticlockwise direction starting from the angle a and ending when it reaches b. These values are specified in radian format, with M_PI*2 equal to a full circle. Zero is to the right of the centre point, and larger values rotate anticlockwise from there. Parameters: x  x coordinate of the arc centre y  y coordinate of the arc centre ang1  starting angle ang2  ending angle r  radius in pixels color  color

int __fastcall fgl::FGDrawBuffer::arc2 (  int  x, int  y, int  ang1, int  ang2, int  r, unsigned  color = UNDEFINED_COLOR )

Draws a circular arc with centre x, y and radius r, in an clockwise direction starting from the angle a and ending when it reaches b. These values are specified in degrees, with 360 equal to a full circle. The zero angle is at the 12 o'clock. Zero is to the right of the centre point, and larger values rotate clockwise from there. Parameters: x  x coordinate of the arc centre y  y coordinate of the arc centre ang1  starting angle ang2  ending angle r  radius in pixels color  color

int __fastcall fgl::FGDrawBuffer::bitblit (  int  xdst, int  ydst, int  xsrc, int  ysrc, int  ww, int  hh, class FGDrawBuffer *  src, int  opcia = BITBLIT_COPY )

Performs image rectangle copy from one FGDrawBuffer object to other with specified ROP and clipping. Returns: false if no drawing was performed, or true if all ran OK. Parameters: xdst  x coord into the destination block ydst  y coord into the destination block xsrc  x coord into the source block ysrc  y coord into the source block ww  a width of copied block (maybe bigger than src or dest block) hh  a height of copied block (maybe bigger than src or dest block) src  a source object that will be copied opcia  a bit oriented value that describes the operational mode of procedure: BITBLIT_COPY - copy only BITBLIT_WITH_OPERATOR - copy with operator BITBLIT_WITH_ALPHA - use the source alpha value BITBLIT_WITH_CLIPPING - perform clipping before BITBLIT_WITH_DECREMENT - for use with overlapping blocks See also: Global defines for more about one.

int __fastcall fgl::FGDrawBuffer::box (  int  x, int  y, int  ww, int  hh, unsigned  color = UNDEFINED_COLOR )

Fill a rectangle from position [x:y] with size [w:h] with 'color'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

FGPixel* __fastcall fgl::FGDrawBuffer::CalcAddr (  int  x, int  y )  [inline]

Calculate the absolute address of [x:y] pixel. There are no relative offsets used.

int __fastcall fgl::FGDrawBuffer::charwidth (  int  c  )  [inline]

Returns a width of the character 'c' in pixels for current font.

int __fastcall fgl::FGDrawBuffer::circle (  int  xs, int  ys, int  r, unsigned  color = UNDEFINED_COLOR )

Draw a circle shape at position [x:y] with radius and with 'color'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

void __fastcall fgl::FGDrawBuffer::clear (  int  color  )  [inline]

Clear the entire object image with this color.

int __fastcall fgl::FGDrawBuffer::clip (  int &  xr, int &  yr, int &  wr, int &  hr )  [inline, protected]

Clip coordinates and size to the client space.

int __fastcall fgl::FGDrawBuffer::ellipse (  int  x, int  y, int  rx, int  ry, unsigned  color = UNDEFINED_COLOR )

Draw an ellipse shape at position [x:y] with radius 'rx' & 'ry'and with 'color'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

int __fastcall fgl::FGDrawBuffer::fcircle (  int  xs, int  ys, int  r, unsigned  color = UNDEFINED_COLOR )

Fill a circle shape at position [x:y] with radius and with 'color'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

int __fastcall fgl::FGDrawBuffer::fellipse (  int  x, int  y, int  rx, int  ry, unsigned  color = UNDEFINED_COLOR )

Fill an ellipse shape at position [x:y] with radius 'rx' & 'ry'and with 'color'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

FGRect __fastcall fgl::FGDrawBuffer::fpolygon (  const FGPointArray &  vertices, unsigned  color = UNDEFINED_COLOR )

Fill convex polygon with 'n' vertices. The each vertice is a pair of two integers X and Y. Parameter 'pt' is an array of these pairs. FUnction return the Rectangle of the polygon boundary. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

FGRect __fastcall fgl::FGDrawBuffer::ftriangle (  int  x1, int  y1, int  x2, int  y2, int  x3, int  y3, unsigned  color = UNDEFINED_COLOR )

Fill a triangle with these three vertices. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function returns false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing. Parameters: x1  x position of first vertice y1  y position of first vertice x2  x position of second vertice y2  y position of second vertice x3  x position of third vertice y3  y position of third vertice color  foreground color

void __fastcall fgl::FGDrawBuffer::get_clip_rect (  int &  x, int &  y, int &  w, int &  h )  [inline]

Returns current values of the client space of the object.

int __fastcall fgl::FGDrawBuffer::get_font (  void   )  [inline]

Returns a current object's font ID.

unsigned __fastcall fgl::FGDrawBuffer::GetAlpha (  void   )  const [inline]

Returns an ALPHA (transparency) value of the object.

FGPixel* __fastcall fgl::FGDrawBuffer::GetArray (  void   )  const [inline]

Returns the address of pixel data storage. There are pixels, from right to left, line by line. Examples: mandel.cpp.

unsigned __fastcall fgl::FGDrawBuffer::GetColorKey (  void   )  const [inline]

Returns the COLOR_KEY of the object (i.e. color that is used as transparent).

int __fastcall fgl::FGDrawBuffer::GetFontH (  void   )  [inline]

Returns a height of one character for current font if one is fixed-size.

int __fastcall fgl::FGDrawBuffer::GetFontW (  void   )  [inline]

Returns a width of one character for current font if one is fixed-size.

int __fastcall fgl::FGDrawBuffer::GetH (  void   )  const [inline]

Returns a height of the object. Examples: mandel.cpp.

int __fastcall fgl::FGDrawBuffer::GetHW (  void   )  const [inline]

Returns a client space height of the object.

int __fastcall fgl::FGDrawBuffer::GetId (  void   )  const [inline]

Returns the ID of the object. The all controls have an exclusive ID. This value goes from 0 to .., for each window and its control items. For example: when window contains 5 buttons, then these buttons have local id values from 0 to 4,according to the order of its creating. This is useful for fast and easy testing which button (when you use one call-back procedure for more buttons i.e.) especially with using GetLastActive(); Examples: bgroup.cpp.

FGPixel __fastcall fgl::FGDrawBuffer::GetInk (  void   )  const [inline]

Returns a foreground color of the object. Reimplemented in fgl::FGBaseGui.

char* __fastcall fgl::FGDrawBuffer::GetName (  void   )  const [inline]

Returns the name of the object. Examples: bgroup.cpp, rad_main.cpp, and radio.cpp.

FGPixel __fastcall fgl::FGDrawBuffer::GetPaper (  void   )  const [inline]

Returns a background color of the object. Reimplemented in fgl::FGBaseGui.

int __fastcall fgl::FGDrawBuffer::getpixel (  int  x, int  y )  [inline]

Returns the value of color at the position [x:y] of the object or (-1) if coordinates are out of range.

long __fastcall fgl::FGDrawBuffer::GetStatus (  void   )  const [inline]

Returns the status of object.

enum ObjectType __fastcall fgl::FGDrawBuffer::GetType (  void   )  const [inline]

Returns the type of the object (WINDOW, PUSHBUTTON ..).

int __fastcall fgl::FGDrawBuffer::GetW (  void   )  const [inline]

Returns a width of the object. Examples: mandel.cpp.

int __fastcall fgl::FGDrawBuffer::GetWW (  void   )  const [inline]

Returns a client space width of the object.

int __fastcall fgl::FGDrawBuffer::GetXW (  void   )  const [inline]

Returns the X coordinate of the client space of the object.

int __fastcall fgl::FGDrawBuffer::GetYW (  void   )  const [inline]

Returns the Y coordinate of the client space of the object.

int __fastcall fgl::FGDrawBuffer::hline (  int  x, int  y, int  c, FGPixel  ink )

Draw a horizontal line from [x:y] with size 'c' and color 'ink'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

int __fastcall fgl::FGDrawBuffer::line (  int  x, int  y, int  a, int  b, unsigned  color = UNDEFINED_COLOR )

Draw a line from position [x:y] to the position [a:b] with 'color'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

int __fastcall fgl::FGDrawBuffer::lineto (  int  x, int  y, unsigned  color = UNDEFINED_COLOR )

Draw a line from the latest PEN position to the position [x:y] Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

void __fastcall fgl::FGDrawBuffer::moveto (  int  x, int  y )  [inline]

Sets the start position for first time used lineto().

int __fastcall fgl::FGDrawBuffer::pline (  int  a1, int  b1, int  a2, int  b2, FGPattern *  pat )

Draw a patterned line from position [a1:b1] to the position [a2:b2]. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

void __fastcall fgl::FGDrawBuffer::polygon (  const FGPointArray &  vertices, unsigned  color = UNDEFINED_COLOR )

Draw convex polygon with 'n' vertices. The each vertice is a pair of two integers X and Y. Parameter 'pt' is an array of these pairs. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

int fgl::FGDrawBuffer::printf (  int  xx, int  yy, const char *  format,   ... )

Draw a text via standard "C" behaviour with the current object font & colors from the position [x:y]. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing. Reimplemented in fgl::FGWindow. Examples: radio.cpp.

int __fastcall fgl::FGDrawBuffer::putpixel (  int  x, int  y, unsigned  color = UNDEFINED_COLOR )

Draw a pixel at position [x:y] with 'color'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinates are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

int __fastcall fgl::FGDrawBuffer::rect (  int  x, int  y, int  w, int  h, unsigned  color = UNDEFINED_COLOR )

Draw a rectangle from position [x:y] with size [w:h] with 'color'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

void __fastcall fgl::FGDrawBuffer::Resize (  int  dx, int  dy )

Resizes the buffer by relative sizes.

void fgl::FGDrawBuffer::restore_state (  void   )  [inline]

Restore the state saved by save_state().

void __fastcall fgl::FGDrawBuffer::rotate (  ENUM_ROTATE_DIRECTION  direction  )

Rotates image to apropriate direction.

void fgl::FGDrawBuffer::save_state (  void   )  [inline]

Save the internal state of object described by struct internal_state (ink, paper, font, alpha, colorkey anf ppop). Note: the state is not stacked, i.e. you can call this methotd only once before restore_state().

void __fastcall fgl::FGDrawBuffer::set_bcolor (  FGPixel  val  )  [inline]

Set the background color for text drawing operations. This color will be used when you choose function that don't uses color as parameter immediatelly.

bool __fastcall fgl::FGDrawBuffer::set_clip_rect (  int  xx, int  yy, int  ww, int  hh )  [inline]

Set position and size of the client space for the object (ww & hh are size).

void __fastcall fgl::FGDrawBuffer::set_colors (  FGPixel  i, FGPixel  p )  [inline]

Set the foreground (ink) and the background (paper) color for drawing operations.

void __fastcall fgl::FGDrawBuffer::set_fcolor (  FGPixel  val  )  [inline]

Set the foreground color for drawing operations. This color will be used when you choose function that don't uses color as parameter immediatelly. Examples: rad_main.cpp.

void __fastcall fgl::FGDrawBuffer::set_font (  int  font_id  )  [inline]

Try get the font image and set requested font ID if success for the object as current. Examples: calc.cpp, and font.cpp.

unsigned __fastcall fgl::FGDrawBuffer::set_ppop (  unsigned  op  )  [inline]

Set the ROP for all drawing operations used with the object. See enum ENUM_PPOP for more details.

void __fastcall fgl::FGDrawBuffer::SetAlpha (  unsigned  a  )  [inline]

Set the level of transparency for the object when bitblit operation will be performed with this object. The level is number from 0 to 255, where 0 is completely transparent and 255 completely opaque.

void __fastcall fgl::FGDrawBuffer::SetColorKey (  unsigned  ck  )  [inline]

Set the COLOR_KEY of the object (i.e. color that will be transparent when bitblit operation will be performed with this object).

void __fastcall fgl::FGDrawBuffer::SetName (  const char *  s  )

Change the name of the object. Reimplemented in fgl::FGControl, and fgl::FGWindow.

void __fastcall fgl::FGDrawBuffer::spline (  FGPoint  points[4], unsigned  color = UNDEFINED_COLOR )

Draws a bezier spline using the four control points specified in the points array. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

void __fastcall fgl::FGDrawBuffer::stretch (  double  rx, double  ry )

Resize the image with ratio 'rx' and 'ry'.

void __fastcall fgl::FGDrawBuffer::stretch (  int  _w, int  _h )

Resize the image to the new size.

int __fastcall fgl::FGDrawBuffer::text (  int  x, int  y, const char *  txt, unsigned  i = UNDEFINED_COLOR, unsigned  p = UNDEFINED_COLOR )

Draw a text with the current object font, background 'p' and foreground 'i' from the position [x:y]. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

int __fastcall fgl::FGDrawBuffer::textwidth (  char *  txt, int  cnt )  [inline]

Returns a width for the first 'cnt' characters of the 'text' in pixels for current font.

int __fastcall fgl::FGDrawBuffer::textwidth (  const char *  text  )  [inline]

Returns a width of the 'text' in pixels for current font.

int __fastcall fgl::FGDrawBuffer::vline (  int  x, int  y, int  c, FGPixel  ink )

Draw a vertical line from [x:y] with size 'c' and color 'ink'. Coordinate [0:0] is top-left corner of the screen. INK is color index in 8-bit videomodes, or absolute color in 16/24 bit modes. Raster Operaration is the current value of ENUM_PPOP. The default is _GSET (i.e. simply copy) See set_ppop() for more details. Coordinate are clipped if needed before drawing. Function return false if no drawing (i.e. object has been clipped-out completelly). The object XY-offset is added before drawing.

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