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apc_graphics.c
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/*-
* Copyright (c) 1997-2002 The Protein Laboratory, University of Copenhagen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
*/
/***********************************************************/
/* */
/* System dependent graphics (unix, x11) */
/* */
/***********************************************************/
#include "unix/guts.h"
#include "Image.h"
#define SORT(a,b) { int swp; if ((a) > (b)) { swp=(a); (a)=(b); (b)=swp; }}
#define REVERT(a) (XX-> size. y - (a) - 1)
#define SHIFT(a,b) { (a) += XX-> gtransform. x + XX-> btransform. x; \
(b) += XX-> gtransform. y + XX-> btransform. y; }
#define RANGE(a) { if ((a) < -16383) (a) = -16383; else if ((a) > 16383) a = 16383; }
#define RANGE2(a,b) RANGE(a) RANGE(b)
#define RANGE4(a,b,c,d) RANGE(a) RANGE(b) RANGE(c) RANGE(d)
#define REVERSE_BYTES_32(x) ((((x)&0xff)<<24) | (((x)&0xff00)<<8) | (((x)&0xff0000)>>8) | (((x)&0xff000000)>>24))
#define REVERSE_BYTES_24(x) ((((x)&0xff)<<16) | ((x)&0xff00) | (((x)&0xff0000)>>8))
#define REVERSE_BYTES_16(x) ((((x)&0xff)<<8 ) | (((x)&0xff00)>>8))
#define COLOR_R16(x) (((x)>>8)&0xFF00)
#define COLOR_G16(x) ((x)&0xFF00)
#define COLOR_B16(x) (((x)<<8)&0xFF00)
static int rop_map[] = {
GXcopy /* ropCopyPut */, /* dest = src */
GXxor /* ropXorPut */, /* dest ^= src */
GXand /* ropAndPut */, /* dest &= src */
GXor /* ropOrPut */, /* dest |= src */
GXcopyInverted /* ropNotPut */, /* dest = !src */
GXinvert /* ropInvert */, /* dest = !dest */
GXclear /* ropBlackness */, /* dest = 0 */
GXandReverse /* ropNotDestAnd */, /* dest = (!dest) & src */
GXorReverse /* ropNotDestOr */, /* dest = (!dest) | src */
GXset /* ropWhiteness */, /* dest = 1 */
GXandInverted /* ropNotSrcAnd */, /* dest &= !src */
GXorInverted /* ropNotSrcOr */, /* dest |= !src */
GXequiv /* ropNotXor */, /* dest ^= !src */
GXnand /* ropNotAnd */, /* dest = !(src & dest) */
GXnor /* ropNotOr */, /* dest = !(src | dest) */
GXnoop /* ropNoOper */ /* dest = dest */
};
int
prima_rop_map( int rop)
{
if ( rop < 0 || rop >= sizeof( rop_map)/sizeof(int))
return GXnoop;
else
return rop_map[ rop];
}
void
prima_get_gc( PDrawableSysData selfxx)
{
XGCValues gcv;
Bool bitmap;
struct gc_head *gc_pool;
if ( XX-> gc && XX-> gcl) return;
if ( XX-> gc || XX-> gcl) {
warn( "UAG_010: internal error");
return;
}
bitmap = XT_IS_BITMAP(XX) ? true : false;
gc_pool = bitmap ? &guts.bitmap_gc_pool : &guts.screen_gc_pool;
XX->gcl = TAILQ_FIRST(gc_pool);
if (XX->gcl)
TAILQ_REMOVE(gc_pool, XX->gcl, gc_link);
if (!XX->gcl) {
gcv. graphics_exposures = false;
XX-> gc = XCreateGC( DISP, bitmap ? XX-> gdrawable : guts. root, GCGraphicsExposures, &gcv);
XCHECKPOINT;
if (( XX->gcl = alloc1z( GCList)))
XX->gcl->gc = XX-> gc;
}
if ( XX-> gcl) XX->gc = XX->gcl->gc;
}
void
prima_release_gc( PDrawableSysData selfxx)
{
Bool bitmap;
struct gc_head *gc_pool;
if ( XX-> gc) {
if ( XX-> gcl == nil)
warn( "UAG_011: internal error");
bitmap = XT_IS_BITMAP(XX) ? true : false;
gc_pool = bitmap ? &guts.bitmap_gc_pool : &guts.screen_gc_pool;
if ( XX-> gcl)
TAILQ_INSERT_HEAD(gc_pool, XX->gcl, gc_link);
XX->gcl = nil;
XX->gc = nil;
} else {
if ( XX-> gcl) {
warn( "UAG_012: internal error");
return;
}
}
}
/*
macros to multiply line pattern entries to line width in
a more-less aestethic fashion :-)
*/
#define MAX_DASH_LEN 2048
#define dDASH_FIX(line_width,source,length) \
int df_i, df_lw = line_width, df_len = length; \
char df_list[MAX_DASH_LEN], *df_src = (char*)source, *df_dst = df_list
#define DASH_FIX \
if ( df_lw > 1) {\
int on = 0;\
if ( df_len > MAX_DASH_LEN) df_len = MAX_DASH_LEN;\
for ( df_i = 0; df_i < df_len; df_i++) {\
unsigned int w = *((unsigned char*)df_src++);\
if (( on = !on)) {\
if ( w > 1) w *= df_lw;\
} else {\
w = w * df_lw + 1;\
}\
if ( w > 255) w = 255;\
*((unsigned char*)df_dst++) = w;\
}\
df_src = df_list;\
}
#define DASHES df_src, df_len
void
prima_prepare_drawable_for_painting( Handle self, Bool inside_on_paint)
{
DEFXX;
unsigned long mask = VIRGIN_GC_MASK;
int w, h;
XRectangle r;
XF_IN_PAINT(XX) = true;
XX-> btransform. x = XX-> btransform. y = 0;
XX-> gcv. ts_x_origin = XX-> gcv. ts_y_origin = 0;
if ( inside_on_paint && XX-> udrawable && is_opt( optBuffered) && !is_opt( optInDrawInfo) ) {
if ( XX-> invalid_region) {
XClipBox( XX-> invalid_region, &r);
XX-> bsize. x = w = r. width;
XX-> bsize. y = h = r. height;
XX-> btransform. x = - r. x;
XX-> btransform. y = r. y;
} else {
r. x = r. y = 0;
XX-> bsize. x = w = XX-> size. x;
XX-> bsize. y = h = XX-> size. y;
}
if ( w <= 0 || h <= 0) goto Unbuffered;
XX-> gdrawable = XCreatePixmap( DISP, XX-> udrawable, w, h, guts.depth);
XCHECKPOINT;
if (!XX-> gdrawable) goto Unbuffered;
XX-> gcv. ts_x_origin = -r.x;
XX-> gcv. ts_y_origin = -r.y;
} else if ( XX-> udrawable && !XX-> gdrawable) {
Unbuffered:
XX-> gdrawable = XX-> udrawable;
}
XX-> paint_rop = XX-> rop;
XX-> paint_rop2 = XX-> rop2;
XX-> flags. paint_base_line = XX-> flags. base_line;
XX-> flags. paint_opaque = XX-> flags. opaque;
XX-> saved_font = PDrawable( self)-> font;
XX-> line_width = XX-> gcv. line_width;
XX-> gcv. clip_mask = None;
XX-> gtransform = XX-> transform;
prima_get_gc( XX);
XX-> gcv. subwindow_mode = (self == application ? IncludeInferiors : ClipByChildren);
XChangeGC( DISP, XX-> gc, mask, &XX-> gcv);
XCHECKPOINT;
if ( XX-> dashes) {
dDASH_FIX( XX-> line_width, XX-> dashes, XX-> ndashes);
DASH_FIX;
XSetDashes( DISP, XX-> gc, 0, DASHES);
XX-> paint_ndashes = XX-> ndashes;
if (( XX-> paint_dashes = malloc( XX-> ndashes)))
memcpy( XX-> paint_dashes, XX-> dashes, XX-> ndashes);
XX-> line_style = ( XX-> paint_rop2 == ropCopyPut) ? LineDoubleDash : LineOnOffDash;
} else {
XX-> paint_dashes = malloc(1);
if ( XX-> ndashes < 0) {
XX-> paint_dashes[0] = '\0';
XX-> paint_ndashes = 0;
} else {
XX-> paint_dashes[0] = '\1';
XX-> paint_ndashes = 1;
}
XX-> line_style = LineSolid;
}
XX-> clip_rect. x = 0;
XX-> clip_rect. y = 0;
XX-> clip_rect. width = XX-> size.x;
XX-> clip_rect. height = XX-> size.y;
if ( XX-> invalid_region && inside_on_paint && !is_opt( optInDrawInfo)) {
if ( XX-> flags. kill_current_region) {
XDestroyRegion( XX-> current_region);
XX-> flags. kill_current_region = 0;
}
if ( XX-> btransform. x != 0 || XX-> btransform. y != 0) {
Region r = XCreateRegion();
XUnionRegion( r, XX-> invalid_region, r);
XOffsetRegion( r, XX-> btransform. x, -XX-> btransform. y);
XSetRegion( DISP, XX-> gc, r);
XX-> current_region = r;
XX-> flags. kill_current_region = 1;
} else {
XSetRegion( DISP, XX-> gc, XX-> invalid_region);
XX-> current_region = XX-> invalid_region;
XX-> flags. kill_current_region = 0;
}
XX-> paint_region = XX-> invalid_region;
XX-> invalid_region = nil;
}
XX-> clip_mask_extent. x = XX-> clip_mask_extent. y = 0;
XX-> flags. xft_clip = 0;
apc_gp_set_color( self, XX-> saved_fore);
apc_gp_set_back_color( self, XX-> saved_back);
memcpy( XX-> saved_fill_pattern, XX-> fill_pattern, sizeof( FillPattern));
XX-> fill_pattern[0]++; /* force */
apc_gp_set_fill_pattern( self, XX-> saved_fill_pattern);
if ( !XX-> flags. reload_font && XX-> font && XX-> font-> id) {
XSetFont( DISP, XX-> gc, XX-> font-> id);
XCHECKPOINT;
} else {
apc_gp_set_font( self, &PDrawable( self)-> font);
XX-> flags. reload_font = false;
}
}
void
prima_cleanup_drawable_after_painting( Handle self)
{
DEFXX;
#ifdef USE_XFT
if ( XX-> xft_drawable) {
XftDrawDestroy( XX-> xft_drawable);
XX-> xft_drawable = nil;
}
#endif
if ( XX-> flags. kill_current_region) {
XDestroyRegion( XX-> current_region);
XX-> flags. kill_current_region = 0;
}
XX-> current_region = 0;
XX-> flags. xft_clip = 0;
if ( XX-> udrawable && XX-> udrawable != XX-> gdrawable && XX-> gdrawable && !is_opt( optInDrawInfo)) {
if ( XX-> paint_region) {
XSetRegion( DISP, XX-> gc, XX-> paint_region);
} else {
Region region = XCreateRegion();
XRectangle r;
r. x = -XX-> btransform. x;
r. y = XX-> btransform. y;
r. width = XX->bsize.x;
r. height = XX->bsize.y;
XUnionRectWithRegion( &r, region, region);
XSetRegion( DISP, XX-> gc, region);
XDestroyRegion( region);
}
XCHECKPOINT;
XSetFunction( DISP, XX-> gc, GXcopy);
XCopyArea( DISP, XX-> gdrawable, XX-> udrawable, XX-> gc,
0, 0,
XX-> bsize.x, XX-> bsize.y,
-XX-> btransform. x, XX-> btransform. y);
XCHECKPOINT;
XFreePixmap( DISP, XX-> gdrawable);
XCHECKPOINT;
XX-> gdrawable = XX-> udrawable;
XX-> btransform. x = XX-> btransform. y = 0;
}
prima_release_gc(XX);
memcpy( XX-> fill_pattern, XX-> saved_fill_pattern, sizeof( FillPattern));
if ( XX-> font && ( --XX-> font-> refCnt <= 0)) {
prima_free_rotated_entry( XX-> font);
XX-> font-> refCnt = 0;
}
if ( XX-> paint_dashes) {
free(XX->paint_dashes);
XX-> paint_dashes = nil;
}
XX-> paint_ndashes = 0;
XF_IN_PAINT(XX) = false;
PDrawable( self)-> font = XX-> saved_font;
if ( XX-> paint_region) {
XDestroyRegion( XX-> paint_region);
XX-> paint_region = nil;
}
XFlush(DISP);
}
#define PURE_FOREGROUND if (!XX->flags.brush_fore) {\
XSetForeground( DISP, XX-> gc, XX-> fore. primary);\
XX->flags.brush_fore=1;\
}\
if (!XX->flags.brush_back && XX-> paint_rop2 == ropCopyPut) {\
XSetBackground( DISP, XX-> gc, XX-> back. primary);\
XX->flags.brush_back=1;\
}\
XSetFillStyle( DISP, XX-> gc, FillSolid);\
Bool
prima_make_brush( DrawableSysData * XX, int colorIndex)
{
Pixmap p;
if ( XT_IS_BITMAP(XX) || ( guts. idepth == 1)) {
int i;
FillPattern mix, *p1, *p2;
if ( colorIndex > 0) return false;
p1 = &guts. ditherPatterns[ 64 - (XX-> fore. primary ? 64 : XX-> fore. balance)];
p2 = &guts. ditherPatterns[ 64 - (XX-> back. primary ? 64 : XX-> back. balance)];
for ( i = 0; i < sizeof( FillPattern); i++)
mix[i] = ((*p1)[i] & XX-> fill_pattern[i]) | ((*p2)[i] & ~XX-> fill_pattern[i]);
XSetForeground( DISP, XX-> gc, 1);
XSetBackground( DISP, XX-> gc, 0);
XX-> flags. brush_fore = 0;
XX-> flags. brush_back = 0;
if (
( memcmp( mix, fillPatterns[ fpSolid], sizeof( FillPattern)) != 0) &&
( p = prima_get_hatch( &mix))
) {
XSetStipple( DISP, XX-> gc, p);
XSetFillStyle( DISP, XX-> gc, FillOpaqueStippled);
} else
XSetFillStyle( DISP, XX-> gc, FillSolid);
} else if ( XX-> flags. brush_null_hatch) {
if ( colorIndex > 0) return false;
if ( XX-> fore. balance) {
p = prima_get_hatch( &guts. ditherPatterns[ XX-> fore. balance]);
if ( p) {
XSetStipple( DISP, XX-> gc, p);
XSetFillStyle( DISP, XX-> gc, FillOpaqueStippled);
XSetBackground( DISP, XX-> gc, XX-> fore. secondary);
XX-> flags. brush_back = 0;
} else /* failure */
XSetFillStyle( DISP, XX-> gc, FillSolid);
} else
XSetFillStyle( DISP, XX-> gc, FillSolid);
if (!XX->flags.brush_fore) {
XSetForeground( DISP, XX-> gc, XX-> fore. primary);
XX->flags.brush_fore = 1;
}
} else if ( XX->fore.balance == 0 && XX->back.balance == 0) {
if ( colorIndex > 0) return false;
p = prima_get_hatch( &XX-> fill_pattern);
XSetFillStyle( DISP, XX-> gc, p ? FillOpaqueStippled : FillSolid);
if ( p) XSetStipple( DISP, XX-> gc, p);
if (!XX->flags.brush_fore) {
XSetForeground( DISP, XX-> gc, XX-> fore. primary);
XX->flags.brush_fore = 1;
}
if (p && !XX->flags.brush_back) {
XSetBackground( DISP, XX-> gc, XX-> back. primary);
XX->flags.brush_back = 1;
}
} else {
switch ( colorIndex) {
case 0: /* back mix */
if ( XX-> back. balance) {
p = prima_get_hatch( &guts. ditherPatterns[ XX-> back. balance]);
if ( p) {
XSetStipple( DISP, XX-> gc, p);
XSetFillStyle( DISP, XX-> gc, FillOpaqueStippled);
XSetBackground( DISP, XX-> gc, XX-> back. secondary);
} else /* failure */
XSetFillStyle( DISP, XX-> gc, FillSolid);
} else
XSetFillStyle( DISP, XX-> gc, FillSolid);
XSetForeground( DISP, XX-> gc, XX-> back. primary);
XX-> flags. brush_back = 0;
break;
case 1: /* fore mix */
if ( memcmp( XX-> fill_pattern, fillPatterns[fpEmpty], sizeof(FillPattern))==0)
return false;
if ( XX-> fore. balance) {
int i;
FillPattern fp;
memcpy( &fp, &guts. ditherPatterns[ XX-> fore. balance], sizeof(FillPattern));
for ( i = 0; i < 8; i++)
fp[i] &= XX-> fill_pattern[i];
p = prima_get_hatch( &fp);
} else
p = prima_get_hatch( &XX-> fill_pattern);
if ( !p) return false;
XSetStipple( DISP, XX-> gc, p);
XSetFillStyle( DISP, XX-> gc, FillStippled);
if ( !XX-> flags. brush_fore) {
XSetForeground( DISP, XX-> gc, XX-> fore. primary);
XX-> flags. brush_fore = 1;
}
break;
case 2: /* fore mix with fill pattern */
if ( memcmp( XX-> fill_pattern, fillPatterns[fpEmpty], sizeof(FillPattern))==0)
return false;
if ( XX-> fore. balance ) {
int i;
FillPattern fp;
memcpy( &fp, &guts. ditherPatterns[ XX-> fore. balance], sizeof(FillPattern));
for ( i = 0; i < 8; i++)
fp[i] = (~fp[i]) & XX-> fill_pattern[i];
p = prima_get_hatch( &fp);
if ( !p) return false;
XSetStipple( DISP, XX-> gc, p);
XSetFillStyle( DISP, XX-> gc, FillStippled);
XSetForeground( DISP, XX-> gc, XX-> fore. secondary);
XX-> flags. brush_fore = 0;
break;
} else
return false;
default:
return false;
}
}
return true;
}
Bool
apc_gp_init( Handle self)
{
X(self)-> resolution = guts. resolution;
if ( guts. dynamicColors && !prima_palette_alloc( self)) return false;
return true;
}
Bool
apc_gp_done( Handle self)
{
DEFXX;
if (!XX) return false;
if ( XX-> dashes) {
free(XX-> dashes);
XX-> dashes = nil;
}
XX-> ndashes = 0;
if ( guts. dynamicColors) {
prima_palette_free( self, true);
free(XX-> palette);
}
prima_release_gc(XX);
return true;
}
static int
arc_completion( double * angleStart, double * angleEnd, int * needFigure)
{
int max;
double diff = ((long)( fabs( *angleEnd - *angleStart) * 1000 + 0.5)) / 1000;
if ( diff == 0) {
*needFigure = false;
return 0;
}
while ( *angleStart > *angleEnd)
*angleEnd += 360;
while ( *angleStart < 0) {
*angleStart += 360;
*angleEnd += 360;
}
while ( *angleStart >= 360) {
*angleStart -= 360;
*angleEnd -= 360;
}
while ( *angleEnd >= *angleStart + 360)
*angleEnd -= 360;
if ( diff < 360) {
*needFigure = true;
return 0;
}
max = (int)(diff / 360);
*needFigure = ( max * 360) != diff;
return ( max % 2) ? 1 : 2;
}
static void
calculate_ellipse_divergence(void)
{
static Bool init = false;
if ( !init) {
XGCValues gcv;
Pixmap px = XCreatePixmap( DISP, guts.root, 4, 4, 1);
GC gc = XCreateGC( DISP, px, 0, &gcv);
XImage *xi;
XSetForeground( DISP, gc, 0);
XFillRectangle( DISP, px, gc, 0, 0, 5, 5);
XSetForeground( DISP, gc, 1);
XDrawArc( DISP, px, gc, 0, 0, 4, 4, 0, 360 * 64);
if (( xi = XGetImage( DISP, px, 0, 0, 4, 4, 1, XYPixmap))) {
int i;
Byte *data[4];
if ( xi-> bitmap_bit_order == LSBFirst)
prima_mirror_bytes(( Byte*) xi-> data, xi-> bytes_per_line * 4);
for ( i = 0; i < 4; i++) data[i] = (Byte*)xi-> data + i * xi-> bytes_per_line;
#define PIX(x,y) ((data[y][0] & (0x80>>(x)))!=0)
if ( PIX(2,1) && !PIX(3,1)) guts. ellipseDivergence.x = -1; else
if ( !PIX(2,1) && !PIX(3,1)) guts. ellipseDivergence.x = 1;
if ( PIX(1,2) && !PIX(1,3)) guts. ellipseDivergence.y = -1; else
if ( !PIX(1,2) && !PIX(1,3)) guts. ellipseDivergence.y = 1;
#undef PIX
XDestroyImage( xi);
}
XFreeGC( DISP, gc);
XFreePixmap( DISP, px);
init = true;
}
}
#define ELLIPSE_RECT x - ( dX + 1) / 2 + 1, y - dY / 2, dX-guts.ellipseDivergence.x, dY-guts.ellipseDivergence.y
#define FILL_ANTIDEFECT_REPAIRABLE \
( rop_map[XX-> paint_rop] == GXcopy ||\
rop_map[XX-> paint_rop] == GXset ||\
rop_map[XX-> paint_rop] == GXclear)
#define FILL_ANTIDEFECT_OPEN {\
XGCValues gcv;\
gcv. line_width = 1;\
gcv. line_style = LineSolid;\
XChangeGC( DISP, XX-> gc, GCLineWidth, &gcv);\
}
#define FILL_ANTIDEFECT_CLOSE {\
XGCValues gcv;\
gcv. line_width = XX-> line_width;\
gcv. line_style = ( XX-> paint_rop2 == ropNoOper) ? LineOnOffDash : LineDoubleDash;\
XChangeGC( DISP, XX-> gc, GCLineWidth, &gcv);\
}
Bool
apc_gp_arc( Handle self, int x, int y, int dX, int dY, double angleStart, double angleEnd)
{
DEFXX;
int compl, needf;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ( dX <= 0 || dY <= 0) return false;
RANGE4(x, y, dX, dY);
SHIFT( x, y);
y = REVERT( y);
PURE_FOREGROUND;
calculate_ellipse_divergence();
compl = arc_completion( &angleStart, &angleEnd, &needf);
while ( compl--)
XDrawArc( DISP, XX-> gdrawable, XX-> gc, ELLIPSE_RECT, 0, 360 * 64);
if ( needf)
XDrawArc( DISP, XX-> gdrawable, XX-> gc, ELLIPSE_RECT,
angleStart * 64, ( angleEnd - angleStart) * 64);
XFLUSH;
return true;
}
Bool
apc_gp_bar( Handle self, int x1, int y1, int x2, int y2)
{
DEFXX;
int mix = 0;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
SHIFT( x1, y1); SHIFT( x2, y2);
SORT( x1, x2); SORT( y1, y2);
RANGE4( x1, y1, x2, y2);
while ( prima_make_brush( XX, mix++))
XFillRectangle( DISP, XX-> gdrawable, XX-> gc, x1, REVERT( y2), x2 - x1 + 1, y2 - y1 + 1);
XCHECKPOINT;
XFLUSH;
return true;
}
Bool
apc_gp_clear( Handle self, int x1, int y1, int x2, int y2)
{
DEFXX;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ( x1 < 0 && y1 < 0 && x2 < 0 && y2 < 0) {
x1 = 0; y1 = 0;
x2 = XX-> size. x - 1;
y2 = XX-> size. y - 1;
}
SHIFT( x1, y1); SHIFT( x2, y2);
SORT( x1, x2); SORT( y1, y2);
RANGE4( x1, y1, x2, y2);
/* clean color entries, leave just background & foreground. XXX */
if ( guts. dynamicColors && x1 <= 0 && x2 > XX-> size.x && y1 <= 0 && y2 >= XX-> size.y) {
prima_palette_free(self,false);
apc_gp_set_color(self, XX-> fore. color);
apc_gp_set_back_color(self, XX-> back. color);
}
XSetForeground( DISP, XX-> gc, XX-> back. primary);
if ( XX-> back. balance > 0) {
Pixmap p = prima_get_hatch( &guts. ditherPatterns[ XX-> back. balance]);
if ( p) {
XSetFillStyle( DISP, XX-> gc, FillOpaqueStippled);
XSetStipple( DISP, XX-> gc, p);
XSetBackground( DISP, XX-> gc, XX-> back. secondary);
} else
XSetFillStyle( DISP, XX-> gc, FillSolid);
} else
XSetFillStyle( DISP, XX-> gc, FillSolid);
XX-> flags. brush_fore = 0;
XFillRectangle( DISP, XX-> gdrawable, XX-> gc, x1, REVERT( y2), x2 - x1 + 1, y2 - y1 + 1);
XFLUSH;
return true;
}
#define GRAD 57.29577951
Bool
apc_gp_chord( Handle self, int x, int y, int dX, int dY, double angleStart, double angleEnd)
{
int compl, needf;
DEFXX;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ( dX <= 0 || dY <= 0) return false;
RANGE4(x, y, dX, dY);
SHIFT( x, y);
y = REVERT( y);
PURE_FOREGROUND;
compl = arc_completion( &angleStart, &angleEnd, &needf);
calculate_ellipse_divergence();
while ( compl--)
XDrawArc( DISP, XX-> gdrawable, XX-> gc, ELLIPSE_RECT, 0, 360 * 64);
if ( !needf) return true;
XDrawArc( DISP, XX-> gdrawable, XX-> gc, ELLIPSE_RECT,
angleStart * 64, ( angleEnd - angleStart) * 64);
XDrawLine( DISP, XX-> gdrawable,
XX-> gc, x + cos( angleStart / GRAD) * dX / 2, y - sin( angleStart / GRAD) * dY / 2,
x + cos( angleEnd / GRAD) * dX / 2, y - sin( angleEnd / GRAD) * dY / 2);
XFLUSH;
return true;
}
Bool
apc_gp_draw_poly( Handle self, int n, Point *pp)
{
DEFXX;
int i;
int x = XX-> gtransform. x + XX-> btransform. x;
int y = XX-> size. y - 1 - XX-> gtransform. y - XX-> btransform. y;
XPoint *p;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ((p = malloc( sizeof( XPoint)*n)) == nil)
return false;
for ( i = 0; i < n; i++) {
p[i].x = pp[i].x + x;
p[i].y = y - pp[i].y;
RANGE2(p[i].x, p[i].y);
}
PURE_FOREGROUND;
XDrawLines( DISP, XX-> gdrawable, XX-> gc, p, n, CoordModeOrigin);
free( p);
XFLUSH;
return true;
}
Bool
apc_gp_draw_poly2( Handle self, int np, Point *pp)
{
DEFXX;
int i;
int x = XX-> gtransform. x + XX-> btransform. x;
int y = XX-> size. y - 1 - XX-> gtransform. y - XX-> btransform. y;
XSegment *s;
int n = np / 2;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ((s = malloc( sizeof( XSegment)*n)) == nil) return false;
for ( i = 0; i < n; i++) {
s[i].x1 = pp[i*2].x + x;
s[i].y1 = y - pp[i*2].y;
s[i].x2 = pp[i*2+1].x + x;
s[i].y2 = y - pp[i*2+1].y;
RANGE4(s[i].x1, s[i].y1, s[i].x2, s[i].y2);
}
PURE_FOREGROUND;
XDrawSegments( DISP, XX-> gdrawable, XX-> gc, s, n);
free( s);
XFLUSH;
return true;
}
Bool
apc_gp_ellipse( Handle self, int x, int y, int dX, int dY)
{
DEFXX;
if ( dX == 1 || dY == 1 ) /* Xorg bug */
return apc_gp_rectangle( self, x - dX / 2, y - dY / 2, x + dX / 2, y + dY / 2);
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ( dX <= 0 || dY <= 0) return false;
RANGE4(x, y, dX, dY);
SHIFT( x, y);
y = REVERT( y);
PURE_FOREGROUND;
calculate_ellipse_divergence();
XDrawArc( DISP, XX-> gdrawable, XX-> gc, ELLIPSE_RECT, 0, 64*360);
XFLUSH;
return true;
}
Bool
apc_gp_fill_chord( Handle self, int x, int y, int dX, int dY, double angleStart, double angleEnd)
{
DEFXX;
int compl, needf, mix = 0;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ( dX <= 0 || dY <= 0) return false;
RANGE4(x, y, dX, dY);
SHIFT( x, y);
y = REVERT( y);
XSetArcMode( DISP, XX-> gc, ArcChord);
FILL_ANTIDEFECT_OPEN;
while ( prima_make_brush( XX, mix++)) {
compl = arc_completion( &angleStart, &angleEnd, &needf);
while ( compl--) {
XFillArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX, dY, 0, 64*360);
if ( FILL_ANTIDEFECT_REPAIRABLE)
XDrawArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX-1, dY-1, 0, 64*360);
}
if ( needf) {
XFillArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX, dY,
angleStart * 64, ( angleEnd - angleStart) * 64);
if ( FILL_ANTIDEFECT_REPAIRABLE)
XDrawArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX-1, dY-1,
angleStart * 64, ( angleEnd - angleStart) * 64);
}
}
FILL_ANTIDEFECT_CLOSE;
XFLUSH;
return true;
}
Bool
apc_gp_fill_ellipse( Handle self, int x, int y, int dX, int dY)
{
DEFXX;
int mix = 0;
if ( dX == 1 || dY == 1 ) /* Xorg bug */
return apc_gp_bar( self, x - dX / 2, y - dY / 2, x + dX / 2, y + dY / 2);
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ( dX <= 0 || dY <= 0) return false;
RANGE4(x, y, dX, dY);
SHIFT( x, y);
y = REVERT( y);
FILL_ANTIDEFECT_OPEN;
while ( prima_make_brush( XX, mix++)) {
XFillArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX, dY, 0, 64*360);
if ( FILL_ANTIDEFECT_REPAIRABLE)
XDrawArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX-1, dY-1, 0, 64*360);
}
FILL_ANTIDEFECT_CLOSE;
XFLUSH;
return true;
}
Bool
apc_gp_fill_poly( Handle self, int numPts, Point *points)
{
/* XXX - beware, current implementation will not deal correctly with different rops and tiles */
XPoint *p;
DEFXX;
int i, mix = 0;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ( !( p = malloc(( numPts + 1) * sizeof( XPoint)))) return false;
for ( i = 0; i < numPts; i++) {
p[i]. x = (short)points[i]. x + XX-> gtransform. x + XX-> btransform. x;
p[i]. y = (short)REVERT(points[i]. y + XX-> gtransform. y + XX-> btransform. y);
RANGE2(p[i].x, p[i].y);
}
p[numPts]. x = (short)points[0]. x + XX-> gtransform. x + XX-> btransform. x;
p[numPts]. y = (short)REVERT(points[0]. y + XX-> gtransform. y + XX-> btransform. y);
RANGE2(p[numPts].x, p[numPts].y);
FILL_ANTIDEFECT_OPEN;
if ( guts. limits. XFillPolygon >= numPts) {
while ( prima_make_brush( XX, mix++)) {
XFillPolygon( DISP, XX-> gdrawable, XX-> gc, p, numPts, ComplexShape, CoordModeOrigin);
if ( FILL_ANTIDEFECT_REPAIRABLE)
XDrawLines( DISP, XX-> gdrawable, XX-> gc, p, numPts+1, CoordModeOrigin);
}
XCHECKPOINT;
} else
warn( "Prima::Drawable::fill_poly: too many points");
FILL_ANTIDEFECT_CLOSE;
free( p);
XFLUSH;
return true;
}
Bool
apc_gp_fill_sector( Handle self, int x, int y, int dX, int dY, double angleStart, double angleEnd)
{
DEFXX;
int compl, needf, mix = 0;
if ( PObject( self)-> options. optInDrawInfo) return false;
if ( !XF_IN_PAINT(XX)) return false;
if ( dX <= 0 || dY <= 0) return false;
RANGE4(x, y, dX, dY);
SHIFT( x, y);
y = REVERT( y);
XSetArcMode( DISP, XX-> gc, ArcPieSlice);
FILL_ANTIDEFECT_OPEN;
while ( prima_make_brush( XX, mix++)) {
compl = arc_completion( &angleStart, &angleEnd, &needf);
while ( compl--) {
XFillArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX, dY, 0, 64*360);
if ( FILL_ANTIDEFECT_REPAIRABLE)
XDrawArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX-1, dY-1, 0, 64*360);
}
if ( needf) {
XFillArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX, dY,
angleStart * 64, ( angleEnd - angleStart) * 64);
if ( FILL_ANTIDEFECT_REPAIRABLE)
XDrawArc( DISP, XX-> gdrawable, XX-> gc, x - ( dX + 1) / 2 + 1, y - dY / 2, dX-1, dY-1,
angleStart * 64, ( angleEnd - angleStart) * 64);
}
}
FILL_ANTIDEFECT_CLOSE;
XFLUSH;
return true;
}
static int
get_pixel_depth( int depth)
{
if ( depth == 1) return 1; else
if ( depth <= 4) return 4; else
if ( depth <= 8) return 8; else
if ( depth <= 16) return 16; else
if ( depth <= 24) return 24; else
return 32;
}
static uint32_t
color_to_pixel( Handle self, Color color, int depth)
{
uint32_t pv;
if ( depth == 1) {
pv = color ? 1 : 0;
} else if ( guts.palSize > 0 ) {
pv = prima_color_find( self, color, -1, nil, RANK_FREE);
} else {
switch ( depth) {
case 16:
case 24:
case 32:
pv =
(((COLOR_R(color) << guts. red_range ) >> 8) << guts. red_shift) |
(((COLOR_G(color) << guts. green_range) >> 8) << guts. green_shift) |
(((COLOR_B(color) << guts. blue_range ) >> 8) << guts. blue_shift);
if ( guts.machine_byte_order != guts.byte_order)
switch( depth) {
case 16:
pv = REVERSE_BYTES_16( pv);
break;
case 24:
pv = REVERSE_BYTES_24( pv);
break;
case 32:
pv = REVERSE_BYTES_32( pv);
break;
}
break;
default:
warn("UAG_005: Not supported pixel depth");
return 0;
}
}
return pv;
}
typedef struct {
XImage * i;
Rect clip;
uint32_t color;
int depth;
int y;
Bool singleBorder;
XDrawable drawable;
GC gc;
int first;
PList * lists;
} FillSession;
static Bool
fs_get_pixel( FillSession * fs, int x, int y)
{
if ( x < fs-> clip. left || x > fs-> clip. right || y < fs-> clip. top || y > fs-> clip. bottom) {
return false;
}
if ( fs-> lists[ y - fs-> first]) {
PList l = fs-> lists[ y - fs-> first];
int i;
for ( i = 0; i < l-> count; i+=2) {
if (((int) l-> items[i+1] >= x) && ((int)l->items[i] <= x))
return false;
}
}
if ( !fs-> i || y != fs-> y) {
XCHECKPOINT;
if ( fs-> i) XDestroyImage( fs-> i);
XCHECKPOINT;
fs-> i = XGetImage( DISP, fs-> drawable, fs-> clip. left, y,
fs-> clip. right - fs-> clip. left + 1, 1,
( fs-> depth == 1) ? 1 : AllPlanes,
( fs-> depth == 1) ? XYPixmap : ZPixmap);
XCHECKPOINT;
if ( !fs-> i) {
return false;