lib/pscmGfx.c File Reference

#include "common.h"
#include "hash.h"
#include "memgfx.h"
#include "gfxPoly.h"
#include "colHash.h"
#include "psGfx.h"
#include "pscmGfx.h"
#include "gemfont.h"
#include "vGfx.h"
#include "vGfxPrivate.h"

Include dependency graph for pscmGfx.c:

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Functions
void	pscmSetHint (struct pscmGfx *pscm, char *hint, char *value)
char *	pscmGetHint (struct pscmGfx *pscm, char *hint)
void	pscmSetClip (struct pscmGfx *pscm, int x, int y, int width, int height)
void	pscmUnclip (struct pscmGfx *pscm)
static Color	pscmClosestColor (struct pscmGfx *pscm, unsigned char r, unsigned char g, unsigned char b)
static Color	pscmAddColor (struct pscmGfx *pscm, unsigned char r, unsigned char g, unsigned char b)
int	pscmFindColorIx (struct pscmGfx *pscm, int r, int g, int b)
rgbColor	pscmColorIxToRgb (struct pscmGfx *pscm, int colorIx)
static void	pscmSetDefaultColorMap (struct pscmGfx *pscm)
pscmGfx *	pscmOpen (int width, int height, char *file)
void	pscmClose (struct pscmGfx **pPscm)
void	pscmSetColor (struct pscmGfx *pscm, int colorIx)
void	pscmBoxToPs (struct pscmGfx *pscm, int x, int y, int width, int height)
void	pscmBox (struct pscmGfx *pscm, int x, int y, int width, int height, int color)
void	pscmDot (struct pscmGfx *pscm, int x, int y, int color)
void	pscmLine (struct pscmGfx *pscm, int x1, int y1, int x2, int y2, int color)
static void	pscmVerticalSmear (struct pscmGfx *pscm, int xOff, int yOff, int width, int height, unsigned char *dots, boolean zeroClear)
static void	pscmSetFont (struct pscmGfx *pscm, MgFont *font)
void	pscmText (struct pscmGfx *pscm, int x, int y, int color, MgFont *font, char *text)
void	pscmTextRight (struct pscmGfx *pscm, int x, int y, int width, int height, int color, MgFont *font, char *text)
void	pscmTextCentered (struct pscmGfx *pscm, int x, int y, int width, int height, int color, MgFont *font, char *text)
void	pscmFillUnder (struct pscmGfx *pscm, int x1, int y1, int x2, int y2, int bottom, Color color)
void	pscmDrawPoly (struct pscmGfx *pscm, struct gfxPoly *poly, Color color, boolean filled)
vGfx *	vgOpenPostScript (int width, int height, char *fileName)
Variables
static char const	rcsid [] = "$Id: pscmGfx.c,v 1.20 2007/04/15 00:43:41 galt Exp $"
static struct pscmGfx *	boxPscm

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Function Documentation

static Color pscmAddColor	(	struct pscmGfx *	pscm,
		unsigned char	r,
		unsigned char	g,
		unsigned char	b
	)			[static]

Definition at line 107 of file pscmGfx.c.

References rgbColor::b, colHashAdd(), pscmGfx::colorHash, pscmGfx::colorMap, pscmGfx::colorsUsed, rgbColor::g, and rgbColor::r.

Referenced by pscmFindColorIx().

{
int colIx = pscm->colorsUsed;
struct rgbColor *c = pscm->colorMap + pscm->colorsUsed;
c->r = r;
c->g = g;
c->b = b;
pscm->colorsUsed += 1;
colHashAdd(pscm->colorHash, r, g, b, colIx);;
return (Color)colIx;
}

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void pscmBox	(	struct pscmGfx *	pscm,
		int	x,
		int	y,
		int	width,
		int	height,
		int	color
	)

Definition at line 222 of file pscmGfx.c.

References boxPscm, pscmBoxToPs(), and pscmSetColor().

Referenced by pscmDrawPoly(), and vgOpenPostScript().

{
/* When viewing whole chromosomes the browser tends
 * to draw the same little vertical tick over and
 * over again.  This tries to remove the worst of
 * the redundancy anyway. */

static int lx, ly, lw, lh, lc=-1;
if (x != lx || y != ly || width != lw || height != lh || color != lc || 
        pscm != boxPscm)
    {
    pscmSetColor(pscm, color);
    pscmBoxToPs(pscm, x, y, width, height);
    lx = x;
    ly = y;
    lw = width;
    lh = height;
    lc = color;
    boxPscm = pscm;
    }
}

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void pscmBoxToPs	(	struct pscmGfx *	pscm,
		int	x,
		int	y,
		int	width,
		int	height
	)

Definition at line 195 of file pscmGfx.c.

References pscmGfx::clipMaxX, pscmGfx::clipMaxY, pscmGfx::clipMinX, pscmGfx::clipMinY, pscmGfx::ps, and psDrawBox().

Referenced by pscmBox().

{
/* Do some clipping here to make the postScript
 * easier to edit in illustrator. */
double x2 = x + width;
double y2 = y + height;

if (x < pscm->clipMinX) x = pscm->clipMinX;
if (y < pscm->clipMinY) y = pscm->clipMinY;
if (x2 > pscm->clipMaxX) x2 = pscm->clipMaxX;
if (y2 > pscm->clipMaxY) y2 = pscm->clipMaxY;

/* adjust to pixel-centered coordinates */
x2 -= 1;
y2 -= 1;
double x1 = x;
double y1 = y;
/* pad a half-pixel all the way around the box */
x1 -= 0.5;
y1 -= 0.5;
x2 += 0.5;
y2 += 0.5;
psDrawBox(pscm->ps, x1, y1, x2-x1, y2-y1);
}

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void pscmClose

(

struct pscmGfx **

pPscm

)

Definition at line 172 of file pscmGfx.c.

References colHashFree(), pscmGfx::colorHash, freez(), pscmGfx::ps, and psClose().

Referenced by vgOpenPostScript().

{
struct pscmGfx *pscm = *pPscm;
if (pscm != NULL)
    {
    psClose(&pscm->ps);
    colHashFree(&pscm->colorHash);
    freez(pPscm);
    }
}

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static Color pscmClosestColor	(	struct pscmGfx *	pscm,
		unsigned char	r,
		unsigned char	g,
		unsigned char	b
	)			[static]

Definition at line 79 of file pscmGfx.c.

References rgbColor::b, pscmGfx::colorMap, pscmGfx::colorsUsed, rgbColor::g, and rgbColor::r.

Referenced by pscmFindColorIx().

{
struct rgbColor *c = pscm->colorMap;
int closestDist = 0x7fffffff;
int closestIx = -1;
int dist, dif;
int i;

for (i=0; i<pscm->colorsUsed; ++i)
    {
    dif = c->r - r;
    dist = dif*dif;
    dif = c->g - g;
    dist += dif*dif;
    dif = c->b - b;
    dist += dif*dif;
    if (dist < closestDist)
        {
        closestDist = dist;
        closestIx = i;
        }
    ++c;
    }
return closestIx;
}

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struct rgbColor pscmColorIxToRgb	(	struct pscmGfx *	pscm,
		int	colorIx
	)			[read]

Definition at line 137 of file pscmGfx.c.

Referenced by vgOpenPostScript().

{
return pscm->colorMap[colorIx];
}

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void pscmDot	(	struct pscmGfx *	pscm,
		int	x,
		int	y,
		int	color
	)

Definition at line 246 of file pscmGfx.c.

References pscmGfx::ps, pscmSetColor(), and psDrawBox().

Referenced by vgOpenPostScript().

{
pscmSetColor(pscm, color);
psDrawBox(pscm->ps, x, y, 1, 1);
}

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void pscmDrawPoly	(	struct pscmGfx *	pscm,
		struct gfxPoly *	poly,
		Color	color,
		boolean	filled
	)

Definition at line 347 of file pscmGfx.c.

References gfxPoint::next, pscmGfx::ps, pscmBox(), pscmLine(), pscmSetColor(), psDrawPoly(), psPolyAddPoint(), psPolyFree(), psPolyNew(), gfxPoly::ptCount, gfxPoly::ptList, gfxPoint::x, and gfxPoint::y.

Referenced by vgOpenPostScript().

{
struct gfxPoint *p = poly->ptList;
struct psPoly *psPoly = psPolyNew();
if (poly->ptCount < 1)  /* nothing to do */
    {
    return;
    }
if (poly->ptCount == 1)  /* a single point */
    {
    struct gfxPoint *p = poly->ptList;
    pscmBox(pscm, p->x, p->y, 1, 1, color);
    return;
    }
if (poly->ptCount == 2)  /* a single line */
    {
    struct gfxPoint *p1 = poly->ptList;
    struct gfxPoint *p2 = p1->next;
    pscmLine(pscm, p1->x, p1->y, p2->x, p2->y, color);
    }
pscmSetColor(pscm, color);

for (;;)
    {
    psPolyAddPoint(psPoly,p->x, p->y);
    p = p->next;
    if (p == poly->ptList)
        break;
    }
psDrawPoly(pscm->ps, psPoly, filled);

psPolyFree(&psPoly);
}

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void pscmFillUnder	(	struct pscmGfx *	pscm,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		int	bottom,
		Color	color
	)

Definition at line 335 of file pscmGfx.c.

References boxPscm, pscmGfx::ps, pscmSetColor(), and psFillUnder().

Referenced by vgOpenPostScript().

{
pscmSetColor(pscm, color);
psFillUnder(pscm->ps, x1, y1, x2, y2, bottom);
boxPscm = NULL;
}

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int pscmFindColorIx	(	struct pscmGfx *	pscm,
		int	r,
		int	g,
		int	b
	)

Definition at line 121 of file pscmGfx.c.

References colHashLookup(), pscmGfx::colorHash, pscmGfx::colorsUsed, errAbort(), colHashEl::ix, pscmAddColor(), and pscmClosestColor().

Referenced by pscmSetDefaultColorMap(), and vgOpenPostScript().

{
struct colHashEl *che;
if (r>255||g>255||b>255) 
    errAbort("RGB values out of range (0-255).  r:%d g:%d b:%d", r, g, b);
if ((che = colHashLookup(pscm->colorHash, r, g, b)) != NULL)
    return che->ix;
if (pscm->colorsUsed < 256)
    return pscmAddColor(pscm, r, g, b);
return pscmClosestColor(pscm, r, g, b);
}

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char* pscmGetHint	(	struct pscmGfx *	pscm,
		char *	hint
	)

Definition at line 46 of file pscmGfx.c.

References hashOptionalVal(), and pscmGfx::hints.

Referenced by vgOpenPostScript().

{
return hashOptionalVal(pscm->hints, hint, "");
}

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void pscmLine	(	struct pscmGfx *	pscm,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		int	color
	)

Definition at line 253 of file pscmGfx.c.

References boxPscm, pscmGfx::ps, pscmSetColor(), psDrawBox(), and psDrawLine().

Referenced by pscmDrawPoly(), and vgOpenPostScript().

{
pscmSetColor(pscm, color);
if ((x1==x2) || (y1 == y2))
    {
    /* pad a half-pixel at each end */
    psDrawBox(pscm->ps, x1-0.5, y1-0.5, x2-x1+1, y2-y1+1);
    }
else
    {
    psDrawLine(pscm->ps, x1, y1, x2, y2);
    }
boxPscm = NULL;
}

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struct pscmGfx* pscmOpen	(	int	width,
		int	height,
		char *	file
	)			[read]

Definition at line 155 of file pscmGfx.c.

References AllocVar, pscmGfx::clipMaxX, pscmGfx::clipMaxY, pscmGfx::clipMinX, pscmGfx::clipMinY, colHashNew(), pscmGfx::colorHash, hashNew, pscmGfx::hints, pscmGfx::ps, pscmSetDefaultColorMap(), psOpen(), and psTranslate().

Referenced by vgOpenPostScript().

{
struct pscmGfx *pscm;

AllocVar(pscm);
pscm->ps = psOpen(file, width, height, 72.0 * 7.5, 0, 0);
psTranslate(pscm->ps,0.5,0.5);  /* translate all coordinates to pixel centers */
pscm->colorHash = colHashNew();
pscmSetDefaultColorMap(pscm);
pscm->clipMinX = pscm->clipMinY = 0;
pscm->clipMaxX = width;     
pscm->clipMaxY = height;
pscm->hints = hashNew(6);
return pscm;
}

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void pscmSetClip	(	struct pscmGfx *	pscm,
		int	x,
		int	y,
		int	width,
		int	height
	)

Definition at line 51 of file pscmGfx.c.

References pscmGfx::clipMaxX, pscmGfx::clipMaxY, pscmGfx::clipMinX, pscmGfx::clipMinY, pscmGfx::ps, and psClipRect().

Referenced by vgOpenPostScript().

{
double x2 = x + width;
double y2 = y + height;
pscm->clipMinX = x;
pscm->clipMinY = y;
pscm->clipMaxX = x2;     /* one beyond actual last pixel */
pscm->clipMaxY = y2;
/* adjust to pixel-centered coordinates */
x2 -= 1;
y2 -= 1;
double x1 = x;
double y1 = y;
/* pad a half-pixel all the way around the box */
x1 -= 0.5;
y1 -= 0.5;
x2 += 0.5;
y2 += 0.5;
psClipRect(pscm->ps, x1, y1, x2-x1, y2-y1);
}

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void pscmSetColor	(	struct pscmGfx *	pscm,
		int	colorIx
	)

Definition at line 184 of file pscmGfx.c.

References rgbColor::b, pscmGfx::colorMap, pscmGfx::curColor, rgbColor::g, pscmGfx::ps, psSetColor(), and rgbColor::r.

Referenced by pscmBox(), pscmDot(), pscmDrawPoly(), pscmFillUnder(), pscmLine(), pscmText(), pscmTextCentered(), pscmTextRight(), and pscmVerticalSmear().

{
struct rgbColor *col = pscm->colorMap + colorIx;
if (colorIx != pscm->curColor)
    {
    psSetColor(pscm->ps, col->r, col->g, col->b);
    pscm->curColor = colorIx;
    }
}

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static void pscmSetDefaultColorMap

(

struct pscmGfx *

pscm

)

[static]

Definition at line 143 of file pscmGfx.c.

References ArraySize, mgFixedColors, and pscmFindColorIx().

Referenced by pscmOpen().

{
/* Note dependency in order here and in MG_WHITE, MG_BLACK, etc. */
int i;
for (i=0; i<ArraySize(mgFixedColors); ++i)
    {
    struct rgbColor *c = &mgFixedColors[i];
    pscmFindColorIx(pscm, c->r, c->g, c->b);
    }
}

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static void pscmSetFont	(	struct pscmGfx *	pscm,
		MgFont *	font
	)			[static]

Definition at line 290 of file pscmGfx.c.

References pscmGfx::curFont, font_hdr::frm_hgt, pscmGfx::ps, and psTimesFont().

Referenced by pscmText(), pscmTextCentered(), and pscmTextRight().

{
/* For now we basically still get the sizing info from the old
 * gem fonts.   I'm not sure how to get sizing info out of
 * PostScript.  We'll try and arrange it so that the PostScript
 * fonts match the gem fonts more or less. */
void *v = font;
if (v != pscm->curFont)
    {
    psTimesFont(pscm->ps, font->frm_hgt);
    pscm->curFont = v;
    }
}

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void pscmSetHint	(	struct pscmGfx *	pscm,
		char *	hint,
		char *	value
	)

Definition at line 26 of file pscmGfx.c.

References cloneString(), freeMem(), hashAdd(), hashLookup(), hashRemove(), pscmGfx::hints, sameString, and hashEl::val.

Referenced by vgOpenPostScript().

{
if (!value) return;
if (sameString(value,""))
    {
    hashRemove(pscm->hints, hint);
    }
struct hashEl *el = hashLookup(pscm->hints, hint);
if (el) 
    {
    freeMem(el->val);
    el->val = cloneString(value);
    }
else
    {
    hashAdd(pscm->hints, hint, cloneString(value));
    }
}

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void pscmText	(	struct pscmGfx *	pscm,
		int	x,
		int	y,
		int	color,
		MgFont *	font,
		char *	text
	)

Definition at line 305 of file pscmGfx.c.

References boxPscm, pscmGfx::ps, pscmSetColor(), pscmSetFont(), and psTextAt().

Referenced by vgOpenPostScript().

{
pscmSetColor(pscm, color);
pscmSetFont(pscm, font);
psTextAt(pscm->ps, x, y, text);
boxPscm = NULL;
}

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void pscmTextCentered	(	struct pscmGfx *	pscm,
		int	x,
		int	y,
		int	width,
		int	height,
		int	color,
		MgFont *	font,
		char *	text
	)

Definition at line 325 of file pscmGfx.c.

References boxPscm, pscmGfx::ps, pscmSetColor(), pscmSetFont(), and psTextCentered().

Referenced by vgOpenPostScript().

{
pscmSetColor(pscm, color);
pscmSetFont(pscm, font);
psTextCentered(pscm->ps, x, y, width, height, text);
boxPscm = NULL;
}

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void pscmTextRight	(	struct pscmGfx *	pscm,
		int	x,
		int	y,
		int	width,
		int	height,
		int	color,
		MgFont *	font,
		char *	text
	)

Definition at line 315 of file pscmGfx.c.

References boxPscm, pscmGfx::ps, pscmSetColor(), pscmSetFont(), and psTextRight().

Referenced by vgOpenPostScript().

{
pscmSetColor(pscm, color);
pscmSetFont(pscm, font);
psTextRight(pscm->ps, x, y, width, height, text);
boxPscm = NULL;
}

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void pscmUnclip

(

struct pscmGfx *

pscm

)

Definition at line 73 of file pscmGfx.c.

References pscmGfx::ps, psClipRect(), psGfx::userHeight, and psGfx::userWidth.

Referenced by vgOpenPostScript().

{
psClipRect(pscm->ps, 0, 0, pscm->ps->userWidth, pscm->ps->userHeight);
}

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static void pscmVerticalSmear	(	struct pscmGfx *	pscm,
		int	xOff,
		int	yOff,
		int	width,
		int	height,
		unsigned char *	dots,
		boolean	zeroClear
	)			[static]

Definition at line 270 of file pscmGfx.c.

References pscmGfx::ps, pscmSetColor(), and psDrawBox().

Referenced by vgOpenPostScript().

{
int x, i;
struct psGfx *ps = pscm->ps;
Color c;
for (i=0; i<width; ++i)
    {
    x = xOff + i;
    c = dots[i];
    if (c != 0 || !zeroClear)
        {
        pscmSetColor(pscm, c);
        psDrawBox(ps, x, yOff, 1, height);
        }
    }
}

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struct vGfx* vgOpenPostScript	(	int	width,
		int	height,
		char *	fileName
	)			[read]

Definition at line 384 of file pscmGfx.c.

References vGfx::box, vGfx::close, vGfx::colorIxToRgb, vGfx::data, vGfx::dot, vGfx::drawPoly, vGfx::fillUnder, vGfx::findColorIx, vGfx::getHint, vGfx::line, pscmBox(), pscmClose(), pscmColorIxToRgb(), pscmDot(), pscmDrawPoly(), pscmFillUnder(), pscmFindColorIx(), pscmGetHint(), pscmLine(), pscmOpen(), pscmSetClip(), pscmSetHint(), pscmText(), pscmTextCentered(), pscmTextRight(), pscmUnclip(), pscmVerticalSmear(), vGfx::setClip, vGfx::setHint, vGfx::text, vGfx::textCentered, vGfx::textRight, vGfx::unclip, vGfx::verticalSmear, vg_colorIxToRgb, and vgHalfInit().

{
struct vGfx *vg = vgHalfInit(width, height);
vg->data = pscmOpen(width, height, fileName);
vg->close = (vg_close)pscmClose;
vg->dot = (vg_dot)pscmDot;
vg->box = (vg_box)pscmBox;
vg->line = (vg_line)pscmLine;
vg->text = (vg_text)pscmText;
vg->textRight = (vg_textRight)pscmTextRight;
vg->textCentered = (vg_textCentered)pscmTextCentered;
vg->findColorIx = (vg_findColorIx)pscmFindColorIx;
vg->colorIxToRgb = (vg_colorIxToRgb)pscmColorIxToRgb;
vg->setClip = (vg_setClip)pscmSetClip;
vg->unclip = (vg_unclip)pscmUnclip;
vg->verticalSmear = (vg_verticalSmear)pscmVerticalSmear;
vg->fillUnder = (vg_fillUnder)pscmFillUnder;
vg->drawPoly = (vg_drawPoly)pscmDrawPoly;
vg->setHint = (vg_setHint)pscmSetHint;
vg->getHint = (vg_getHint)pscmGetHint;
return vg;
}

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---

Variable Documentation

struct pscmGfx* boxPscm [static]

Definition at line 21 of file pscmGfx.c.

Referenced by pscmBox(), pscmFillUnder(), pscmLine(), pscmText(), pscmTextCentered(), and pscmTextRight().

char const rcsid[] = "$Id: pscmGfx.c,v 1.20 2007/04/15 00:43:41 galt Exp $" [static]

Definition at line 18 of file pscmGfx.c.

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