Grender.h File Reference

#include "Gpreview.h"
#include "main/region.h"

Go to the source code of this file.

Data Structures
struct	prevData
struct	prevDataText
struct	prevDataLine
struct	prevDataRect
struct	prevDataPoint
struct	prevDataPoly
struct	prevDataCircle
struct	prevDataEllipse
struct	prevDataImage
struct	prevDataLineF
struct	prevDataRectF
struct	prevDataPointF
struct	prevDataPolyF
struct	prevDataCircleF
struct	prevDataEllipseF

Macros
#define	FONT_SMALL   0x01
#define	FONT_MED   0x02
#define	FONT_BIG   0x03
#define	FONT_MASK   0x03
#define	FONT_SHIFT   0x02
#define	REGION_NONE   (1<<FONT_SHIFT)
#define	REGION_COM   (2<<FONT_SHIFT)
#define	REGION_PCOUNT   (3<<FONT_SHIFT)
#define	REGION_LENGTH   (4<<FONT_SHIFT)
#define	REGION_ECCENTRICITY   (5<<FONT_SHIFT)
#define	REGION_COMPACTNESS   (6<<FONT_SHIFT)
#define	REGION_AVGCONF   (7<<FONT_SHIFT)
#define	REGION_RATING   (8<<FONT_SHIFT)
#define	REGION_RAT_KALMAN   (9<<FONT_SHIFT)
#define	REGION_RAT_MOTION   (10<<FONT_SHIFT)
#define	REGION_ID   (11<<FONT_SHIFT)
#define	REGION_MASK   0x3C
#define	RENDER_XOR   (0x20000000)
#define	RENDER_THICK   (0x40000000)
#define	RENDER_CLEAR   (0x80000000)

Functions
void	prev_drawInit (prevBuffer *buf, gint r, gint g, gint b)
float	prev_drawInitFull (prevBuffer *buf, gint r, gint g, gint b, gint disp_mode)
void	prev_colConvert (iwColtab ctab, gint r, gint g, gint b, gint *rd, gint *gd, gint *bd)
char *	prev_colString (iwColtab ctab, gint r, gint g, gint b)
float	prev_colInit (prevBuffer *buf, int disp_mode, iwColtab model, gint r, gint g, gint b, gint colindex)
void	prev_drawPoint (int x, int y)
void	prev_drawPoint_gray_nc (int x, int y)
void	prev_drawPoint_gray_nc_xor (int x, int y)
void	prev_drawPoint_color_nc (int x, int y)
void	prev_drawPoint_color_nc_xor (int x, int y)
void	prev_drawPoint_color_nc_nm (int x, int y)
void	prev_drawFRect (int x, int y, int width, int height)
void	prev_drawFRect_gray_nc (int x, int y, int width, int height)
void	prev_drawFRect_color_nc (int x, int y, int width, int height)
void	prev_drawLine (int x, int y, int X, int Y)
void	prev_drawPoly (int npts, const prevDataPoint *pts)
void	prev_drawFPoly (int npts, const prevDataPoint *pts)
void	prev_drawConvexPoly (int npts, const prevDataPoint *pts)
void	prev_drawCircle (int x, int y, int radius)
void	prev_drawFCircle (int x, int y, int radius)
void	prev_drawEllipse (int x, int y, int width, int height, int angle, int arc_start, int arc_end, gboolean filled)
void	prev_drawString (int x, int y, const char *str)
void	prev_gc_init (prevGC *gc)
void	prev_drawBackground (prevBuffer *b)
void	prev_set_bg_color (prevBuffer *buf, uchar r, uchar g, uchar b)
void	prev_set_thickness (prevBuffer *buf, int thickness)
gboolean	prev_prepare_draw (prevBuffer *b, int disp_mode, int width, int height)
void	prev_render_data (prevBuffer *b, prevType type, const void *data, int disp_mode, int width, int height)
void	prev_render_list (prevBuffer *b, prevType type, const void *data, int size, int cnt, int disp_mode, int width, int height)
void	prev_render_set (prevBuffer *b, const prevData *data, int cnt, int disp_mode, int width, int height)
void	prev_render_texts (prevBuffer *b, const prevDataText *texts, int cnt, int disp_mode, int width, int height)
void	prev_render_lines (prevBuffer *b, const prevDataLine *lines, int cnt, int disp_mode, int width, int height)
void	prev_render_rects (prevBuffer *b, const prevDataRect *rects, int cnt, int disp_mode, int width, int height)
void	prev_render_frects (prevBuffer *b, const prevDataRect *frects, int cnt, int disp_mode, int width, int height)
void	prev_render_polys (prevBuffer *b, const prevDataPoly *polys, int cnt, int disp_mode, int width, int height)
void	prev_render_fpolys (prevBuffer *b, const prevDataPoly *polys, int cnt, int disp_mode, int width, int height)
void	prev_render_circles (prevBuffer *b, const prevDataCircle *circ, int cnt, int disp_mode, int width, int height)
void	prev_render_fcircles (prevBuffer *b, const prevDataCircle *circ, int cnt, int disp_mode, int width, int height)
void	prev_render_ellipses (prevBuffer *b, const prevDataEllipse *ellipse, int cnt, int disp_mode, int width, int height)
void	prev_render_regions (prevBuffer *b, const iwRegion *regions, int cnt, int disp_mode, int width, int height)
void	prev_render_COMinfos (prevBuffer *b, const iwRegCOMinfo *regions, int cnt, int disp_mode, int width, int height)
void	prev_render_imgs (prevBuffer *b, const prevDataImage *imgs, int cnt, int disp_mode, int width, int height)
void	prev_render (prevBuffer *b, guchar **planes, int width, int height, iwColtab ctab)
void	prev_render_int (prevBuffer *b, const gint32 *src, int w, int h, long col_step)
void	prev_render_text (prevBuffer *b, int disp_mode, int width, int height, int x, int y, const char *format,...) G_GNUC_PRINTF(7
void void	prev_render_init (void)

---

Macro Definition Documentation

#define FONT_SMALL   0x01

Font to use for displaying text

#define FONT_MED   0x02

"

#define FONT_BIG   0x03

"

#define FONT_MASK   0x03

All bits of the fonts

#define FONT_SHIFT   0x02

Number of bits used by the fonts

#define REGION_NONE   (1<<FONT_SHIFT)

Display no text

#define REGION_COM   (2<<FONT_SHIFT)

Display center of mass

#define REGION_PCOUNT   (3<<FONT_SHIFT)

Display pixel count

#define REGION_LENGTH   (4<<FONT_SHIFT)

Display length of polygon

#define REGION_ECCENTRICITY   (5<<FONT_SHIFT)

Display eccentricity

#define REGION_COMPACTNESS   (6<<FONT_SHIFT)

Display compactness

#define REGION_AVGCONF   (7<<FONT_SHIFT)

Display avg. confidenceValue

#define REGION_RATING   (8<<FONT_SHIFT)

Display rating of the region

#define REGION_RAT_KALMAN   (9<<FONT_SHIFT)

Display kalman rating of the region

#define REGION_RAT_MOTION   (10<<FONT_SHIFT)

Display motion rating of the region

#define REGION_ID   (11<<FONT_SHIFT)

Display the ID

#define REGION_MASK   0x3C

All bits above

#define RENDER_XOR   (0x20000000)

#define RENDER_THICK   (0x40000000)

Use thickness for line oriented drawings

#define RENDER_CLEAR   (0x80000000)

Clear the buffer and free all old render data (IMPORTANT to prevent mem leaks)

---

Function Documentation

void prev_drawInit	(	prevBuffer *	buf,
		gint	r,
		gint	g,
		gint	b
	)

  Set color and dest buffer for the primitive drawing functions
  prev_drawPoint() to prev_drawString(). If a color component is set
  to -1, the corresponding channel is not changed.
  prev_drawInitFull(): Return zoom factor.

float prev_drawInitFull	(	prevBuffer *	buf,
		gint	r,
		gint	g,
		gint	b,
		gint	disp_mode
	)

void prev_colConvert	(	iwColtab	ctab,
		gint	r,
		gint	g,
		gint	b,
		gint *	rd,
		gint *	gd,
		gint *	bd
	)

  PRIVATE: Convert from ctab to the rgb color space.

char* prev_colString	(	iwColtab	ctab,
		gint	r,
		gint	g,
		gint	b
	)

  Calls prev_colConvert() and returns a pointer to a static string
  '#rrggbb'.

float prev_colInit	(	prevBuffer *	buf,
		int	disp_mode,
		iwColtab	model,
		gint	r,
		gint	g,
		gint	b,
		gint	colindex
	)

  Set color and buffer for following drawing primitives.
  Calls prev_drawInitFull() and returns zoom factor.

void prev_drawPoint	(	int	x,
		int	y
	)

  Draw a point/filled rectangle/line/polygon/filled polygon/
  convex filled polygon/circle/filled cirecle/ellipse in the
  buffer set with drawInit().
  .._nc()          : No clipping (-> no check of the coordinates).
  .._gray|color_..(): Assume buffer is gray|color.
  ATTENTION: Low-Level functions without buffer locking or check for
             open windows.

void prev_drawPoint_gray_nc	(	int	x,
		int	y
	)

void prev_drawPoint_gray_nc_xor	(	int	x,
		int	y
	)

void prev_drawPoint_color_nc	(	int	x,
		int	y
	)

void prev_drawPoint_color_nc_xor	(	int	x,
		int	y
	)

void prev_drawPoint_color_nc_nm	(	int	x,
		int	y
	)

void prev_drawFRect	(	int	x,
		int	y,
		int	width,
		int	height
	)

void prev_drawFRect_gray_nc	(	int	x,
		int	y,
		int	width,
		int	height
	)

void prev_drawFRect_color_nc	(	int	x,
		int	y,
		int	width,
		int	height
	)

void prev_drawLine	(	int	x,
		int	y,
		int	X,
		int	Y
	)

void prev_drawPoly	(	int	npts,
		const prevDataPoint *	pts
	)

void prev_drawFPoly	(	int	npts,
		const prevDataPoint *	pts
	)

void prev_drawConvexPoly	(	int	npts,
		const prevDataPoint *	pts
	)

void prev_drawCircle	(	int	x,
		int	y,
		int	radius
	)

void prev_drawFCircle	(	int	x,
		int	y,
		int	radius
	)

void prev_drawEllipse	(	int	x,
		int	y,
		int	width,
		int	height,
		int	angle,
		int	arc_start,
		int	arc_end,
		gboolean	filled
	)

void prev_drawString	(	int	x,
		int	y,
		const char *	str
	)

  Draw a text at pos (x,y) with font given with prev_drawInitFull() or
  via the menu appended with prev_opts_append().
  Differnt in-string formating options and '\n','\t' are supported:
  Format: <tag1=value tag2="value" tag3> with
  tag    value                                              result
  <                                                    '<' - string
  anchor tl|tr|br|bl|c    (x,y) at topleft,..., center pos of text
  fg    [rgb:|yuv:|bgr:|bw:|index:]r g b          forground color
  bg    [rgb:|yuv:|bgr:|bw:|index:]r g b          background color
  font  small|med|big                                  font to use
  adjust left|center|right                          text adjustment
  rotate 0|90|180|270  rotate text beginning with the current line
  shadow 1|0                                          shadow on/off
  zoom  1|0                                      zoom text on/off
  /                                return to values before last <>
  ATTENTION: Low-Level function without buffer locking or check for
             open windows.

void prev_gc_init

(

prevGC *

gc

)

  PRIVATE: Fill gc struct with default values.

void prev_drawBackground

(

prevBuffer *

b

)

  Fill b with the bg color.
  ATTENTION: Low-Level function without buffer locking or check for
             open windows.

void prev_set_bg_color	(	prevBuffer *	buf,
		uchar	r,
		uchar	g,
		uchar	b
	)

  Set color which is used for clearing the buffer (RENDER_CLEAR).

void prev_set_thickness	(	prevBuffer *	buf,
		int	thickness
	)

  Set thickness for line oriented drawings.

gboolean prev_prepare_draw	(	prevBuffer *	b,
		int	disp_mode,
		int	width,
		int	height
	)

  Some random things which must be done before drawing
  (is already done for all prev_render_...()):
    - lock the buffer
    - if RENDER_CLEAR is set:
        - clear the buffer
        - free all old render data
        - store the render size (width,height) in b->gc (if >= 0)
  Returns TRUE if anything should be done (-> if the window is open).

void prev_render_data	(	prevBuffer *	b,
		prevType	type,
		const void *	data,
		int	disp_mode,
		int	width,
		int	height
	)

  Draw the data (
    - one element of type type
    - a list, length: cnt, size of one element: size, type:type
    - a set of different elements with cnt elements)
  in buffer b, such that an area of size width x height fits into the
  buffer. If width/height < 0 or RENDER_CLEAR is not set, the last
  values for this buffer b are used. Mode of display disp_mode
  defined by flags in header file. If no flags are set and option
  widgets are appended to the window, these widgets are used.

void prev_render_list	(	prevBuffer *	b,
		prevType	type,
		const void *	data,
		int	size,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_set	(	prevBuffer *	b,
		const prevData *	data,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_texts	(	prevBuffer *	b,
		const prevDataText *	texts,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

  Wrapper around prev_render_list().
  _texts(): Formating options of prev_drawString() are supported.

void prev_render_lines	(	prevBuffer *	b,
		const prevDataLine *	lines,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_rects	(	prevBuffer *	b,
		const prevDataRect *	rects,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_frects	(	prevBuffer *	b,
		const prevDataRect *	frects,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_polys	(	prevBuffer *	b,
		const prevDataPoly *	polys,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_fpolys	(	prevBuffer *	b,
		const prevDataPoly *	polys,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_circles	(	prevBuffer *	b,
		const prevDataCircle *	circ,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_fcircles	(	prevBuffer *	b,
		const prevDataCircle *	circ,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_ellipses	(	prevBuffer *	b,
		const prevDataEllipse *	ellipse,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_regions	(	prevBuffer *	b,
		const iwRegion *	regions,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_COMinfos	(	prevBuffer *	b,
		const iwRegCOMinfo *	regions,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render_imgs	(	prevBuffer *	b,
		const prevDataImage *	imgs,
		int	cnt,
		int	disp_mode,
		int	width,
		int	height
	)

void prev_render	(	prevBuffer *	b,
		guchar **	planes,
		int	width,
		int	height,
		iwColtab	ctab
	)

  Render planes of size width x height and color mode/table ctab
  (IW_YUV, IW_RGB, ..., or an own table) in preview window b.

void prev_render_int	(	prevBuffer *	b,
		const gint32 *	src,
		int	w,
		int	h,
		long	col_step
	)

  Render the img src (size: w x h) in buffer b by using the function
  dest = src * col_step % 256.
  If col_step > 255 it is interpreted as a color table for rendering
  the dest image (and a col_Step of 1 is used).

void prev_render_text	(	prevBuffer *	b,
		int	disp_mode,
		int	width,
		int	height,
		int	x,
		int	y,
		const char *	format,
			...
	)

  Render str in b at position (x,y). Printf style arguments and the
  formating options of prev_drawString() are supported.

void void prev_render_init

(

void

)

  PRIVATE: Called from prev_init() to initialise the render functions.