Include a stripped-down version of FLTK in tree and add a USE_INCLUDED_FLTK option to build against it.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4603 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/fltk/src/fl_line_style.cxx b/common/fltk/src/fl_line_style.cxx
new file mode 100644
index 0000000..f9b61bf
--- /dev/null
+++ b/common/fltk/src/fl_line_style.cxx
@@ -0,0 +1,174 @@
+//
+// "$Id: fl_line_style.cxx 8190 2011-01-05 10:21:45Z manolo $"
+//
+// Line style code for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2010 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+// http://www.fltk.org/str.php
+//
+
+/**
+ \file fl_line_style.cxx
+ \brief Line style drawing utility hiding different platforms.
+*/
+
+#include <FL/Fl.H>
+#include <FL/fl_draw.H>
+#include <FL/x.H>
+#include <FL/Fl_Printer.H>
+#include "flstring.h"
+#include <stdio.h>
+
+// We save the current line width (absolute value) here.
+// This is currently used only for X11 clipping, see src/fl_rect.cxx.
+// FIXME: this would probably better be in class Fl::
+int fl_line_width_ = 0;
+
+#ifdef __APPLE_QUARTZ__
+float fl_quartz_line_width_ = 1.0f;
+static enum CGLineCap fl_quartz_line_cap_ = kCGLineCapButt;
+static enum CGLineJoin fl_quartz_line_join_ = kCGLineJoinMiter;
+static CGFloat *fl_quartz_line_pattern = 0;
+static int fl_quartz_line_pattern_size = 0;
+void fl_quartz_restore_line_style_() {
+ CGContextSetLineWidth(fl_gc, fl_quartz_line_width_);
+ CGContextSetLineCap(fl_gc, fl_quartz_line_cap_);
+ CGContextSetLineJoin(fl_gc, fl_quartz_line_join_);
+ CGContextSetLineDash(fl_gc, 0, fl_quartz_line_pattern, fl_quartz_line_pattern_size);
+}
+#endif
+
+void Fl_Graphics_Driver::line_style(int style, int width, char* dashes) {
+
+ // save line width in global variable for X11 clipping
+ if (width == 0) fl_line_width_ = 1;
+ else fl_line_width_ = width>0 ? width : -width;
+
+#if defined(USE_X11)
+ int ndashes = dashes ? strlen(dashes) : 0;
+ // emulate the WIN32 dash patterns on X
+ char buf[7];
+ if (!ndashes && (style&0xff)) {
+ int w = width ? width : 1;
+ char dash, dot, gap;
+ // adjust lengths to account for cap:
+ if (style & 0x200) {
+ dash = char(2*w);
+ dot = 1; // unfortunately 0 does not work
+ gap = char(2*w-1);
+ } else {
+ dash = char(3*w);
+ dot = gap = char(w);
+ }
+ char* p = dashes = buf;
+ switch (style & 0xff) {
+ case FL_DASH: *p++ = dash; *p++ = gap; break;
+ case FL_DOT: *p++ = dot; *p++ = gap; break;
+ case FL_DASHDOT: *p++ = dash; *p++ = gap; *p++ = dot; *p++ = gap; break;
+ case FL_DASHDOTDOT: *p++ = dash; *p++ = gap; *p++ = dot; *p++ = gap; *p++ = dot; *p++ = gap; break;
+ }
+ ndashes = p-buf;
+ }
+ static int Cap[4] = {CapButt, CapButt, CapRound, CapProjecting};
+ static int Join[4] = {JoinMiter, JoinMiter, JoinRound, JoinBevel};
+ XSetLineAttributes(fl_display, fl_gc, width,
+ ndashes ? LineOnOffDash : LineSolid,
+ Cap[(style>>8)&3], Join[(style>>12)&3]);
+ if (ndashes) XSetDashes(fl_display, fl_gc, 0, dashes, ndashes);
+#elif defined(WIN32)
+ // According to Bill, the "default" cap and join should be the
+ // "fastest" mode supported for the platform. I don't know why
+ // they should be different (same graphics cards, etc., right?) MRS
+ static DWORD Cap[4]= {PS_ENDCAP_FLAT, PS_ENDCAP_FLAT, PS_ENDCAP_ROUND, PS_ENDCAP_SQUARE};
+ static DWORD Join[4]={PS_JOIN_ROUND, PS_JOIN_MITER, PS_JOIN_ROUND, PS_JOIN_BEVEL};
+ int s1 = PS_GEOMETRIC | Cap[(style>>8)&3] | Join[(style>>12)&3];
+ DWORD a[16]; int n = 0;
+ if (dashes && dashes[0]) {
+ s1 |= PS_USERSTYLE;
+ for (n = 0; n < 16 && *dashes; n++) a[n] = *dashes++;
+ } else {
+ s1 |= style & 0xff; // allow them to pass any low 8 bits for style
+ }
+ if ((style || n) && !width) width = 1; // fix cards that do nothing for 0?
+ LOGBRUSH penbrush = {BS_SOLID,fl_RGB(),0}; // can this be fl_brush()?
+ HPEN newpen = ExtCreatePen(s1, width, &penbrush, n, n ? a : 0);
+ if (!newpen) {
+ Fl::error("fl_line_style(): Could not create GDI pen object.");
+ return;
+ }
+ HPEN oldpen = (HPEN)SelectObject(fl_gc, newpen);
+ DeleteObject(oldpen);
+ DeleteObject(fl_current_xmap->pen);
+ fl_current_xmap->pen = newpen;
+#elif defined(__APPLE_QUARTZ__)
+ static enum CGLineCap Cap[4] = { kCGLineCapButt, kCGLineCapButt,
+ kCGLineCapRound, kCGLineCapSquare };
+ static enum CGLineJoin Join[4] = { kCGLineJoinMiter, kCGLineJoinMiter,
+ kCGLineJoinRound, kCGLineJoinBevel };
+ if (width<1) width = 1;
+ fl_quartz_line_width_ = (float)width;
+ fl_quartz_line_cap_ = Cap[(style>>8)&3];
+ // when printing kCGLineCapSquare seems better for solid lines
+ if ( Fl_Surface_Device::surface()->class_name() == Fl_Printer::class_id && style == FL_SOLID && dashes == NULL ) {
+ fl_quartz_line_cap_ = kCGLineCapSquare;
+ }
+ fl_quartz_line_join_ = Join[(style>>12)&3];
+ char *d = dashes;
+ static CGFloat pattern[16];
+ if (d && *d) {
+ CGFloat *p = pattern;
+ while (*d) { *p++ = (float)*d++; }
+ fl_quartz_line_pattern = pattern;
+ fl_quartz_line_pattern_size = d-dashes;
+ } else if (style & 0xff) {
+ char dash, dot, gap;
+ // adjust lengths to account for cap:
+ if (style & 0x200) {
+ dash = char(2*width);
+ dot = 1;
+ gap = char(2*width-1);
+ } else {
+ dash = char(3*width);
+ dot = gap = char(width);
+ }
+ CGFloat *p = pattern;
+ switch (style & 0xff) {
+ case FL_DASH: *p++ = dash; *p++ = gap; break;
+ case FL_DOT: *p++ = dot; *p++ = gap; break;
+ case FL_DASHDOT: *p++ = dash; *p++ = gap; *p++ = dot; *p++ = gap; break;
+ case FL_DASHDOTDOT: *p++ = dash; *p++ = gap; *p++ = dot; *p++ = gap; *p++ = dot; *p++ = gap; break;
+ }
+ fl_quartz_line_pattern_size = p-pattern;
+ fl_quartz_line_pattern = pattern;
+ } else {
+ fl_quartz_line_pattern = 0;
+ fl_quartz_line_pattern_size = 0;
+ }
+ fl_quartz_restore_line_style_();
+#else
+# error unsupported platform
+#endif
+}
+
+
+//
+// End of "$Id: fl_line_style.cxx 8190 2011-01-05 10:21:45Z manolo $".
+//