text device

diff --git a/lib/devices/text.c b/lib/devices/text.c
new file mode 100644 (file)
index 0000000..652b20a
--- /dev/null
+++ b/lib/devices/text.c
@@ -0,0 +1,219 @@
+/* text.c
+
+   Part of the swftools package.
+
+   Copyright (c) 2006 Matthias Kramm <kramm@quiss.org> 
+ 
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of 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.
+
+   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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <memory.h>
+#include "../types.h"
+#include "../mem.h"
+#include "../gfxdevice.h"
+#include "../gfxtools.h"
+#include "../utf8.h"
+
+typedef struct _textpage {
+    char*text;
+    int textsize;
+    int textpos;
+    struct _textpage*next;
+} textpage_t;
+
+typedef struct _internal {
+    textpage_t*first_page;
+    textpage_t*current_page;
+} internal_t;
+
+int text_setparameter(gfxdevice_t*dev, const char*key, const char*value)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+void text_startpage(gfxdevice_t*dev, int width, int height)
+{
+    internal_t*i = (internal_t*)dev->internal;
+    if(i->first_page) {
+       i->first_page = i->current_page = (textpage_t*)malloc(sizeof(textpage_t));
+    } else {
+       i->current_page->next = (textpage_t*)malloc(sizeof(textpage_t));
+       i->current_page = i->current_page->next;
+    }
+    i->current_page->textsize = 4096;
+    i->current_page->text = malloc(i->current_page->textsize);
+}
+void text_startclip(gfxdevice_t*dev, gfxline_t*line)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+void text_endclip(gfxdevice_t*dev)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+void text_stroke(gfxdevice_t*dev, gfxline_t*line, gfxcoord_t width, gfxcolor_t*color, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+void text_fill(gfxdevice_t*dev, gfxline_t*line, gfxcolor_t*color)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+void text_fillbitmap(gfxdevice_t*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*matrix, gfxcxform_t*cxform)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+void text_fillgradient(gfxdevice_t*dev, gfxline_t*line, gfxgradient_t*gradient, gfxgradienttype_t type, gfxmatrix_t*matrix)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+void text_addfont(gfxdevice_t*dev, gfxfont_t*font) {}
+void text_drawchar(gfxdevice_t*dev, gfxfont_t*font, int glyphnr, gfxcolor_t*color, gfxmatrix_t*matrix)
+{
+    internal_t*i = (internal_t*)dev->internal;
+
+    if(i->current_page->textpos + 10 > i->current_page->textsize) {
+       i->current_page->textsize += 4096;
+       i->current_page->text = realloc(i->current_page->text, i->current_page->textsize);
+    }
+
+    gfxglyph_t*glyph = &font->glyphs[glyphnr];
+    writeUTF8(glyph->unicode, &i->current_page->text[i->current_page->textpos]);
+    i->current_page->textpos += strlen(&i->current_page->text[i->current_page->textpos]);
+    return;
+}
+
+void text_drawlink(gfxdevice_t*dev, gfxline_t*line, char*action)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+
+void text_endpage(gfxdevice_t*dev)
+{
+    internal_t*i = (internal_t*)dev->internal;
+}
+
+void text_result_write(gfxresult_t*r, int filedesc)
+{
+    textpage_t*i= (textpage_t*)r->internal;
+}
+int text_result_save(gfxresult_t*r, char*filename)
+{
+    textpage_t*i= (textpage_t*)r->internal;
+    if(!i) {
+       return 0; // no pages drawn
+    }
+    FILE*fi = fopen(filename, "wb");
+    if(!fi)
+       return 0;
+    while(i) {
+       fwrite(i->text, i->textpos, 1, fi);
+       i = i->next;
+    }
+    fclose(fi);
+    return 1;
+}
+void*text_result_get(gfxresult_t*r, char*name)
+{
+    textpage_t*i= (textpage_t*)r->internal;
+    if(!strcmp(name,"text")) {
+       textpage_t*j = i;
+       int len = 0;
+       while(j) {
+           len += i->textpos;
+           j = j->next;
+       }
+       char*text = malloc(len);
+       int pos = 0;
+       j = i;
+       while(j) {
+           memcpy(&text[pos], i->text, i->textpos);
+           pos += i->textpos;
+           j = j->next;
+       }
+       text[pos] = 0;
+       return text;
+    } else if(!strncmp(name,"page",4)) {
+       int pagenr = atoi(&name[4]);
+       if(pagenr<0)
+           pagenr=0;
+       while(pagenr>0) {
+           i = i->next;
+           if(!i)
+               return 0;
+       }
+       i->text[i->textpos] = 0;
+       return strdup(i->text);
+    }
+    return 0;
+}
+void text_result_destroy(gfxresult_t*r)
+{
+    textpage_t*i= (textpage_t*)r->internal;
+    r->internal = 0;
+    while(i) {
+       textpage_t*next = i->next;
+       free(i->text);i->text = 0;
+       free(i);
+       i = next;
+    }
+    free(r);
+}
+
+gfxresult_t* text_finish(struct _gfxdevice*dev)
+{
+    internal_t*i = (internal_t*)dev->internal;
+    
+    gfxresult_t* res = (gfxresult_t*)rfx_calloc(sizeof(gfxresult_t));
+    
+    res->internal = i->first_page;i->first_page = 0;i->current_page=0;
+    res->write = text_result_write;
+    res->save = text_result_save;
+    res->get = text_result_get;
+    res->destroy = text_result_destroy;
+
+    free(dev->internal); dev->internal = 0; i = 0;
+
+    return res;
+}
+
+
+
+void gfxdevice_text_init(gfxdevice_t*dev, gfxdevice_t*out)
+{
+    internal_t*i = (internal_t*)rfx_calloc(sizeof(internal_t));
+    memset(dev, 0, sizeof(gfxdevice_t));
+
+    dev->name = "text";
+
+    dev->internal = i;
+
+    dev->setparameter = text_setparameter;
+    dev->startpage = text_startpage;
+    dev->startclip = text_startclip;
+    dev->endclip = text_endclip;
+    dev->stroke = text_stroke;
+    dev->fill = text_fill;
+    dev->fillbitmap = text_fillbitmap;
+    dev->fillgradient = text_fillgradient;
+    dev->addfont = text_addfont;
+    dev->drawchar = text_drawchar;
+    dev->drawlink = text_drawlink;
+    dev->endpage = text_endpage;
+    dev->finish = text_finish;
+}
+

diff --git a/lib/devices/text.h b/lib/devices/text.h
new file mode 100644 (file)
index 0000000..1f52093
--- /dev/null
+++ b/lib/devices/text.h
@@ -0,0 +1,37 @@
+/* text.h
+   Header file for dummy.c
+
+   Part of the swftools package.
+
+   Copyright (c) 2001,2002,2003 Matthias Kramm <kramm@quiss.org> 
+ 
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of 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.
+
+   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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#ifndef __gfxdevice_text_h__
+#define __gfxdevice_text_h__
+
+#include "../gfxdevice.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void gfxdevice_text_init(gfxdevice_t*dev);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //__gfxdevice_text_h__