/*--------------------------------------------------------------------------
* void common_init( PLStream *pls )
*
* Basic initialization for all devices.
*--------------------------------------------------------------------------*/
wxPLDevBase* common_init( PLStream *pls )
{
// Log_Verbose( "common_init()" );
wxPLDevBase* dev;
/* default options */
static PLINT freetype=-1;
static PLINT smooth_text=1;
static PLINT text=-1;
static PLINT hrshsym = 0;
/* default backend uses wxGraphicsContext, if not available
the agg library will be used, if not available the basic
backend will be used. */
static PLINT backend=wxBACKEND_DC;
#if wxUSE_GRAPHICS_CONTEXT
backend=wxBACKEND_GC;
#else
#ifdef HAVE_AGG
backend=wxBACKEND_AGG;
#endif
#endif
DrvOpt wx_options[] = {
#ifdef HAVE_FREETYPE
{"freetype", DRV_INT, &freetype, "Use FreeType library"},
{"smooth", DRV_INT, &smooth_text, "Turn text smoothing on (1) or off (0)"},
#endif
{"hrshsym", DRV_INT, &hrshsym, "Use Hershey symbol set (hrshsym=0|1)"},
{"backend", DRV_INT, &backend, "Choose backend: (0) standard, (1) using AGG library, (2) using wxGraphicsContext"},
{"text", DRV_INT, &text, "Use own text routines (text=0|1)"},
{NULL, DRV_INT, NULL, NULL}
};
/* Check for and set up driver options */
plParseDrvOpts( wx_options );
/* allocate memory for the device storage */
switch( backend )
{
case wxBACKEND_GC:
/* in case wxGraphicsContext isn't available, the next backend (agg
if available) in this list will be used */
#if wxUSE_GRAPHICS_CONTEXT
dev = new wxPLDevGC;
/* by default the own text routines are used for wxGC */
if(text==-1)
text=1;
freetype = 0; /* this backend is vector oriented and doesn't know pixels */
break;
#endif
case wxBACKEND_AGG:
/* in case the agg library isn't available, the standard backend
will be used */
#ifdef HAVE_AGG
dev = new wxPLDevAGG;
/* by default the freetype text routines are used for wxAGG */
text = 0; /* text processing doesn't work yet for the AGG backend */
if(freetype==-1)
freetype=1;
break;
#endif
default:
dev = new wxPLDevDC;
/* by default the own text routines are used for wxDC */
if(text==-1)
if(freetype!=1)
text=1;
else
text=0;
if(freetype==-1)
freetype=0;
break;
}
if( dev == NULL) {
plexit( "Insufficient memory" );
}
pls->dev = (void*)dev;
/* be verbose and write out debug messages */
#ifdef _DEBUG
pls->verbose = 1;
pls->debug = 1;
#else
pls->verbose = 0;
pls->debug = 0;
#endif
pls->color = 1; /* Is a color device */
pls->dev_fill0 = 1; /* Can handle solid fills */
pls->dev_fill1 = 0; /* Can't handle pattern fills */
pls->dev_dash = 0;
pls->dev_clear = 1; /* driver supports clear */
if( text ) {
pls->dev_text = 1; /* want to draw text */
pls->dev_unicode = 1; /* want unicode */
if( hrshsym )
pls->dev_hrshsym = 1;
}
#ifdef HAVE_FREETYPE
/* own text routines have higher priority over freetype
if text and freetype option are set to 1 */
if( !text) {
dev->smooth_text=smooth_text;
dev->freetype=freetype;
}
if( dev->freetype ) {
pls->dev_text = 1; /* want to draw text */
pls->dev_unicode = 1; /* want unicode */
if( hrshsym )
pls->dev_hrshsym = 1;
init_freetype_lv1( pls );
FT_Data* FT=(FT_Data *)pls->FT;
FT->want_smooth_text=smooth_text;
}
#endif
/* initialize frame size and position */
if( pls->xlength <= 0 || pls->ylength <=0 )
plspage( 0.0, 0.0, (PLINT)(CANVAS_WIDTH*DEVICE_PIXELS_PER_IN),
(PLINT)(CANVAS_HEIGHT*DEVICE_PIXELS_PER_IN), 0, 0 );
dev->width=pls->xlength;
dev->height=pls->ylength;
dev->clipminx=pls->xlength;
dev->clipminy=pls->ylength;
if( pls->xoffset!=0 || pls->yoffset!=0) {
dev->xpos = (int)(pls->xoffset);
dev->ypos = (int)(pls->yoffset);
}
/* If portrait mode, apply a rotation and set freeaspect */
if( pls->portrait ) {
plsdiori( (PLFLT)(4 - ORIENTATION) );
pls->freeaspect = 1;
}
/* Set the number of pixels per mm */
plP_setpxl( (PLFLT)VIRTUAL_PIXELS_PER_MM, (PLFLT)VIRTUAL_PIXELS_PER_MM );
/* Set up physical limits of plotting device (in drawing units) */
plP_setphy( (PLINT)0, (PLINT)(CANVAS_WIDTH*VIRTUAL_PIXELS_PER_IN),
(PLINT)0, (PLINT)(CANVAS_HEIGHT*VIRTUAL_PIXELS_PER_IN) );
/* get physical device limits coordinates */
plP_gphy( &dev->xmin, &dev->xmax, &dev->ymin, &dev->ymax );
/* setting scale factors */
dev->scalex=(PLFLT)(dev->xmax-dev->xmin)/(dev->width);
dev->scaley=(PLFLT)(dev->ymax-dev->ymin)/(dev->height);
/* set dpi */
plspage(VIRTUAL_PIXELS_PER_IN/dev->scalex, VIRTUAL_PIXELS_PER_IN/dev->scaley, 0, 0, 0, 0);
#ifdef HAVE_FREETYPE
if( dev->freetype )
init_freetype_lv2( pls );
#endif
/* find out what file drivers are available */
plgFileDevs( &dev->devDesc, &dev->devName, &dev->ndev );
return dev;
}
void
c_plaxes(PLFLT x0, PLFLT y0,
const char *xopt, PLFLT xtick, PLINT nxsub,
const char *yopt, PLFLT ytick, PLINT nysub)
{
PLINT lax, lbx, lcx, lgx, lix, llx, lsx, ltx;
PLINT lay, lby, lcy, lgy, liy, lly, lsy, lty;
PLINT xmajor, xminor, ymajor, yminor;
PLINT i, i1x, i2x, i3x, i4x, i1y, i2y, i3y, i4y;
PLINT nxsub1, nysub1;
PLINT lxmin, lxmax, lymin, lymax;
PLINT pxmin, pxmax, pymin, pymax;
PLINT vppxmi, vppxma, vppymi, vppyma;
PLFLT xtick1, ytick1, vpwxmi, vpwxma, vpwymi, vpwyma;
PLFLT vpwxmin, vpwxmax, vpwymin, vpwymax;
PLFLT xp0, yp0, tn, tp, temp;
if (plsc->level < 3) {
plabort("plbox: Please set up window first");
return;
}
/* Open the clip limits to the subpage limits */
plP_gclp(&lxmin, &lxmax, &lymin, &lymax);
plP_gphy(&pxmin, &pxmax, &pymin, &pymax);
plP_sclp(pxmin, pxmax, pymin, pymax);
vppxmi = plsc->vppxmi;
vppxma = plsc->vppxma;
vppymi = plsc->vppymi;
vppyma = plsc->vppyma;
/* Convert world coordinates to physical */
xp0 = plP_wcpcx(x0);
yp0 = plP_wcpcy(y0);
/* Set plot options from input */
lax = plP_stsearch(xopt, 'a');
lbx = plP_stsearch(xopt, 'b');
lcx = plP_stsearch(xopt, 'c');
lgx = plP_stsearch(xopt, 'g');
lix = plP_stsearch(xopt, 'i');
llx = plP_stsearch(xopt, 'l');
lsx = plP_stsearch(xopt, 's');
ltx = plP_stsearch(xopt, 't');
lay = plP_stsearch(yopt, 'a');
lby = plP_stsearch(yopt, 'b');
lcy = plP_stsearch(yopt, 'c');
lgy = plP_stsearch(yopt, 'g');
liy = plP_stsearch(yopt, 'i');
lly = plP_stsearch(yopt, 'l');
lsy = plP_stsearch(yopt, 's');
lty = plP_stsearch(yopt, 't');
/* Tick and subtick sizes in device coords */
xmajor = MAX(ROUND(plsc->majht * plsc->ypmm), 1);
ymajor = MAX(ROUND(plsc->majht * plsc->xpmm), 1);
xminor = MAX(ROUND(plsc->minht * plsc->ypmm), 1);
yminor = MAX(ROUND(plsc->minht * plsc->xpmm), 1);
nxsub1 = nxsub;
nysub1 = nysub;
xtick1 = llx ? 1.0 : xtick;
ytick1 = lly ? 1.0 : ytick;
plgvpw(&vpwxmin, &vpwxmax, &vpwymin, &vpwymax);
/* n.b. large change; vpwxmi always numerically less than vpwxma, and
* similarly for vpwymi */
vpwxmi = (vpwxmax > vpwxmin) ? vpwxmin : vpwxmax;
vpwxma = (vpwxmax > vpwxmin) ? vpwxmax : vpwxmin;
vpwymi = (vpwymax > vpwymin) ? vpwymin : vpwymax;
vpwyma = (vpwymax > vpwymin) ? vpwymax : vpwymin;
lax = lax && vpwymi < y0 && y0 < vpwyma ;
lay = lay && vpwxmi < x0 && x0 < vpwxma ;
/* Calculate tick spacing */
if (ltx || lgx)
pldtik(vpwxmi, vpwxma, &xtick1, &nxsub1);
if (lty || lgy)
pldtik(vpwymi, vpwyma, &ytick1, &nysub1);
/* n.b. large change; xtick1, nxsub1, ytick1, nysub1 always positive. */
/* Set up tick variables */
if (lix) {
i1x = xminor;
i2x = 0;
i3x = xmajor;
i4x = 0;
}
else {
i1x = 0;
i2x = xminor;
i3x = 0;
i4x = xmajor;
}
if (liy) {
i1y = yminor;
i2y = 0;
i3y = ymajor;
i4y = 0;
}
else {
i1y = 0;
i2y = yminor;
i3y = 0;
i4y = ymajor;
}
/* Draw the bottom edge of the box */
if (lbx) {
plP_movphy(vppxmi, vppymi);
if (ltx) {
tp = xtick1 * floor(vpwxmi / xtick1);
for (;;) {
tn = tp + xtick1;
if (lsx) {
if (llx) {
for (i = 0; i <= 7; i++) {
temp = tp + xlog[i];
if (BETW(temp, vpwxmi, vpwxma))
plxtik(plP_wcpcx(temp), vppymi, i1x, i2x);
}
}
else {
for (i = 1; i <= nxsub1 - 1; i++) {
temp = tp + i * xtick1 / nxsub1;
if (BETW(temp, vpwxmi, vpwxma))
plxtik(plP_wcpcx(temp), vppymi, i1x, i2x);
}
}
}
if (!BETW(tn, vpwxmi, vpwxma))
break;
plxtik(plP_wcpcx(tn), vppymi, i3x, i4x);
tp = tn;
}
}
plP_draphy(vppxma, vppymi);
}
/* Draw right-hand edge of box */
if (lcy) {
plP_movphy(vppxma, vppymi);
if (lty) {
tp = ytick1 * floor(vpwymi / ytick1);
for (;;) {
tn = tp + ytick1;
if (lsy) {
if (lly) {
for (i = 0; i <= 7; i++) {
temp = tp + xlog[i];
if (BETW(temp, vpwymi, vpwyma))
plytik(vppxma, plP_wcpcy(temp), i2y, i1y);
}
}
else {
for (i = 1; i <= nysub1 - 1; i++) {
temp = tp + i * ytick1 / nysub1;
if (BETW(temp, vpwymi, vpwyma))
plytik(vppxma, plP_wcpcy(temp), i2y, i1y);
}
}
}
if (!BETW(tn, vpwymi, vpwyma))
break;
plytik(vppxma, plP_wcpcy(tn), i4y, i3y);
tp = tn;
}
}
plP_draphy(vppxma, vppyma);
}
/* Draw the top edge of the box */
if (lcx) {
plP_movphy(vppxma, vppyma);
if (ltx) {
tp = xtick1 * (floor(vpwxma / xtick1) + 1);
for (;;) {
tn = tp - xtick1;
if (lsx) {
if (llx) {
for (i = 7; i >= 0; i--) {
temp = tn + xlog[i];
if (BETW(temp, vpwxmi, vpwxma))
plxtik(plP_wcpcx(temp), vppyma, i2x, i1x);
}
}
else {
for (i = nxsub1 - 1; i >= 1; i--) {
temp = tn + i * xtick1 / nxsub1;
if (BETW(temp, vpwxmi, vpwxma))
plxtik(plP_wcpcx(temp), vppyma, i2x, i1x);
}
}
}
if (!BETW(tn, vpwxmi, vpwxma))
break;
plxtik(plP_wcpcx(tn), vppyma, i4x, i3x);
tp = tn;
}
}
plP_draphy(vppxmi, vppyma);
}
/* Draw left-hand edge of box */
if (lby) {
plP_movphy(vppxmi, vppyma);
if (lty) {
tp = ytick1 * (floor(vpwyma / ytick1) + 1);
for (;;) {
tn = tp - ytick1;
if (lsy) {
if (lly) {
for (i = 7; i >= 0; i--) {
temp = tn + xlog[i];
if (BETW(temp, vpwymi, vpwyma))
plytik(vppxmi, plP_wcpcy(temp), i1y, i2y);
}
}
else {
for (i = nysub1 - 1; i >= 1; i--) {
temp = tn + i * ytick1 / nysub1;
if (BETW(temp, vpwymi, vpwyma))
plytik(vppxmi, plP_wcpcy(temp), i1y, i2y);
}
}
}
if (!BETW(tn, vpwymi, vpwyma))
break;
plytik(vppxmi, plP_wcpcy(tn), i3y, i4y);
tp = tn;
}
}
plP_draphy(vppxmi, vppymi);
}
/* Draw the horizontal axis */
if (lax) {
plP_movphy(vppxmi, yp0);
if (ltx) {
tp = xtick1 * floor(vpwxmi / xtick1);
for (;;) {
tn = tp + xtick1;
if (lsx) {
if (llx) {
for (i = 0; i <= 7; i++) {
temp = tp + xlog[i];
if (BETW(temp, vpwxmi, vpwxma))
plxtik(plP_wcpcx(temp), yp0, xminor, xminor);
}
}
else {
for (i = 1; i <= nxsub1 - 1; i++) {
temp = tp + i * xtick1 / nxsub1;
if (BETW(temp, vpwxmi, vpwxma))
plxtik(plP_wcpcx(temp), yp0, xminor, xminor);
}
}
}
if (!BETW(tn, vpwxmi, vpwxma))
break;
plxtik(plP_wcpcx(tn), yp0, xmajor, xmajor);
tp = tn;
}
}
plP_draphy(vppxma, yp0);
}
/* Draw the vertical axis */
if (lay) {
plP_movphy(xp0, vppymi);
if (lty) {
tp = ytick1 * floor(vpwymi / ytick1);
for (;;) {
tn = tp + ytick1;
if (lsy) {
if (lly) {
for (i = 0; i <= 7; i++) {
temp = tp + xlog[i];
if (BETW(temp, vpwymi, vpwyma))
plytik(xp0, plP_wcpcy(temp), yminor, yminor);
}
}
else {
for (i = 1; i <= nysub1 - 1; i++) {
temp = tp + i * ytick1 / nysub1;
if (BETW(temp, vpwymi, vpwyma))
plytik(xp0, plP_wcpcy(temp), yminor, yminor);
}
}
}
if (!BETW(tn, vpwymi, vpwyma))
break;
plytik(xp0, plP_wcpcy(tn), ymajor, ymajor);
tp = tn;
}
}
plP_draphy(xp0, vppyma);
}
/* Draw grids */
grid_box(xopt, xtick1, nxsub1, yopt, ytick1, nysub1);
/* Write labels */
label_box(xopt, xtick1, yopt, ytick1);
/* Restore the clip limits to viewport edge */
plP_sclp(lxmin, lxmax, lymin, lymax);
}