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-rw-r--r--gfx/graphite2/src/gr_slot.cpp173
1 files changed, 173 insertions, 0 deletions
diff --git a/gfx/graphite2/src/gr_slot.cpp b/gfx/graphite2/src/gr_slot.cpp
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+++ b/gfx/graphite2/src/gr_slot.cpp
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+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program 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
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "graphite2/Segment.h"
+#include "inc/Segment.h"
+#include "inc/Slot.h"
+#include "inc/Font.h"
+
+
+extern "C" {
+
+
+const gr_slot* gr_slot_next_in_segment(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return static_cast<const gr_slot*>(p->next());
+}
+
+const gr_slot* gr_slot_prev_in_segment(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return static_cast<const gr_slot*>(p->prev());
+}
+
+const gr_slot* gr_slot_attached_to(const gr_slot* p/*not NULL*/) //returns NULL iff base. If called repeatedly on result, will get to a base
+{
+ assert(p);
+ return static_cast<const gr_slot*>(p->attachedTo());
+}
+
+
+const gr_slot* gr_slot_first_attachment(const gr_slot* p/*not NULL*/) //returns NULL iff no attachments.
+{ //if slot_first_attachment(p) is not NULL, then slot_attached_to(slot_first_attachment(p))==p.
+ assert(p);
+ return static_cast<const gr_slot*>(p->firstChild());
+}
+
+
+const gr_slot* gr_slot_next_sibling_attachment(const gr_slot* p/*not NULL*/) //returns NULL iff no more attachments.
+{ //if slot_next_sibling_attachment(p) is not NULL, then slot_attached_to(slot_next_sibling_attachment(p))==slot_attached_to(p).
+ assert(p);
+ return static_cast<const gr_slot*>(p->nextSibling());
+}
+
+
+unsigned short gr_slot_gid(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->glyph();
+}
+
+
+float gr_slot_origin_X(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->origin().x;
+}
+
+
+float gr_slot_origin_Y(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->origin().y;
+}
+
+
+float gr_slot_advance_X(const gr_slot* p/*not NULL*/, const gr_face *face, const gr_font *font)
+{
+ assert(p);
+ float scale = 1.0;
+ float res = p->advance();
+ if (font)
+ {
+ scale = font->scale();
+ if (face && font->isHinted())
+ res = (res - face->glyphs().glyph(p->gid())->theAdvance().x) * scale + font->advance(p->gid());
+ else
+ res = res * scale;
+ }
+ return res;
+}
+
+float gr_slot_advance_Y(const gr_slot *p/*not NULL*/, GR_MAYBE_UNUSED const gr_face *face, const gr_font *font)
+{
+ assert(p);
+ float res = p->advancePos().y;
+ if (font)
+ return res * font->scale();
+ else
+ return res;
+}
+
+int gr_slot_before(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->before();
+}
+
+
+int gr_slot_after(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->after();
+}
+
+unsigned int gr_slot_index(const gr_slot *p/*not NULL*/)
+{
+ assert(p);
+ return p->index();
+}
+
+int gr_slot_attr(const gr_slot* p/*not NULL*/, const gr_segment* pSeg/*not NULL*/, gr_attrCode index, gr_uint8 subindex)
+{
+ assert(p);
+ return p->getAttr(pSeg, index, subindex);
+}
+
+
+int gr_slot_can_insert_before(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return (p->isInsertBefore())? 1 : 0;
+}
+
+
+int gr_slot_original(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->original();
+}
+
+void gr_slot_linebreak_before(gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ gr_slot *prev = (gr_slot *)p->prev();
+ prev->sibling(NULL);
+ prev->next(NULL);
+ p->prev(NULL);
+}
+
+#if 0 //what should this be
+size_t id(const gr_slot* p/*not NULL*/)
+{
+ return (size_t)p->id();
+}
+#endif
+
+
+} // extern "C"
+