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/***************************************************************************
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begin : Sat Feb 20 2010
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copyright : (C) 2010 by Martin Preuss
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email : martin@libchipcard.de
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***************************************************************************
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* Please see toplevel file COPYING for license details *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#define DISABLE_DEBUGLOG
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#include "o_box_l.h"
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#include "htmlctx_l.h"
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#include <gwenhywfar/debug.h>
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#define LINE_EXTRA_OFFSET_DIV 20
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static int HtmlObject_Box_Layout(HTML_OBJECT *o) {
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HTML_OBJECT *c;
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HTML_OBJECT *cFirstInLine;
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GWEN_XML_CONTEXT *ctx;
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int w;
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int h;
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int x=0;
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int y=0;
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int maxX=0;
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int lineHeight=0;
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int rv;
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int resX;
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int resY;
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w=HtmlObject_GetWidth(o);
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h=HtmlObject_GetHeight(o);
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ctx=HtmlObject_GetXmlCtx(o);
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resX=HtmlCtx_GetResolutionX(ctx);
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resY=HtmlCtx_GetResolutionY(ctx);
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c=HtmlObject_Tree_GetFirstChild(o);
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cFirstInLine=c;
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while(c) {
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int th;
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if ((HtmlObject_GetFlags(c) & HTML_OBJECT_FLAGS_START_ON_NEWLINE) &&
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x>0) {
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/* next line */
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if (x>maxX)
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maxX=x;
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/* possibly justify */
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if (w!=-1 && x<w) {
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int diff=0;
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if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_RIGHT)
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diff=w-x;
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else if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_HCENTER) {
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diff=(w-x)>>1;
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}
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if (diff) {
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HTML_OBJECT *ct;
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ct=cFirstInLine;
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while(ct) {
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HtmlObject_SetX(ct, HtmlObject_GetX(ct)+diff);
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if (ct==c)
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break;
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ct=HtmlObject_Tree_GetNext(ct);
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}
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}
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}
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x=0;
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y+=lineHeight+(resY/LINE_EXTRA_OFFSET_DIV);
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lineHeight=0;
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cFirstInLine=HtmlObject_Tree_GetNext(c);
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}
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HtmlObject_SetHeight(c, -1);
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if (w==-1) {
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HtmlObject_SetWidth(c, -1);
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rv=HtmlObject_Layout(c);
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if (rv<0) {
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DBG_INFO(GWEN_LOGDOMAIN, "here (%d)", rv);
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return rv;
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}
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}
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else {
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int tw;
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tw=w-x;
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HtmlObject_SetWidth(c, tw);
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rv=HtmlObject_Layout(c);
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if (rv<0) {
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DBG_INFO(GWEN_LOGDOMAIN, "here (%d)", rv);
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return rv;
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}
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if (HtmlObject_GetWidth(c)>tw && x>0) {
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/* next line */
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if (x>maxX)
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maxX=x;
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/* possibly justify */
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if (x<w) {
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int diff=0;
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if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_RIGHT)
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diff=w-x;
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else if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_HCENTER) {
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diff=(w-x)>>1;
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}
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if (diff) {
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HTML_OBJECT *ct;
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ct=cFirstInLine;
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while(ct) {
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HtmlObject_SetX(ct, HtmlObject_GetX(ct)+diff);
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if (ct==c)
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break;
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ct=HtmlObject_Tree_GetNext(ct);
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}
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}
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}
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x=0;
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y+=lineHeight+(resY/LINE_EXTRA_OFFSET_DIV);
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lineHeight=0;
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cFirstInLine=HtmlObject_Tree_GetNext(c);
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}
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}
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HtmlObject_SetX(c, x);
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HtmlObject_SetY(c, y);
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th=HtmlObject_GetHeight(c);
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if (th>lineHeight)
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lineHeight=th;
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x+=HtmlObject_GetWidth(c);
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if ((HtmlObject_GetFlags(c) & HTML_OBJECT_FLAGS_END_WITH_NEWLINE)) {
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if (x>0) {
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/* next line */
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if (x>maxX)
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maxX=x;
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/* possibly justify */
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if (x<w) {
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int diff=0;
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if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_RIGHT)
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diff=w-x;
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else if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_HCENTER) {
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diff=(w-x)>>1;
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}
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if (diff) {
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HTML_OBJECT *ct;
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ct=cFirstInLine;
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while(ct) {
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HtmlObject_SetX(ct, HtmlObject_GetX(ct)+diff);
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if (ct==c)
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break;
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ct=HtmlObject_Tree_GetNext(ct);
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}
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}
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}
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}
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x=0;
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if (lineHeight==0) {
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HTML_PROPS *pr;
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HTML_FONT *fnt;
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pr=HtmlObject_GetProperties(o);
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assert(pr);
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fnt=HtmlProps_GetFont(pr);
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lineHeight=HtmlCtx_GetTextHeight(HtmlObject_GetXmlCtx(o), fnt, "ABCD");
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}
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y+=lineHeight+(resY/LINE_EXTRA_OFFSET_DIV);
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lineHeight=0;
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cFirstInLine=HtmlObject_Tree_GetNext(c);
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}
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c=HtmlObject_Tree_GetNext(c);
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}
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if (x>0) {
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/* next line */
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if (x>maxX)
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maxX=x;
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/* possibly justify */
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if (x<w) {
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int diff=0;
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if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_RIGHT)
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diff=w-x;
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else if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_HCENTER) {
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diff=(w-x)>>1;
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}
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if (diff) {
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HTML_OBJECT *ct;
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ct=cFirstInLine;
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while(ct) {
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HtmlObject_SetX(ct, HtmlObject_GetX(ct)+diff);
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ct=HtmlObject_Tree_GetNext(ct);
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}
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}
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}
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x=0;
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y+=lineHeight+(resY/LINE_EXTRA_OFFSET_DIV);
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lineHeight=0;
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}
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/* finish layout */
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HtmlObject_SetWidth(o, maxX+1);
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HtmlObject_SetHeight(o, y+1);
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return 0;
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}
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HTML_OBJECT *HtmlObject_Box_new(GWEN_XML_CONTEXT *ctx) {
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HTML_OBJECT *o;
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o=HtmlObject_new(ctx, HtmlObjectType_Box);
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HtmlObject_SetLayoutFn(o, HtmlObject_Box_Layout);
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return o;
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}
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