gwenhywfar
4.3.3
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00001 /*************************************************************************** 00002 begin : Sat Feb 20 2010 00003 copyright : (C) 2010 by Martin Preuss 00004 email : martin@libchipcard.de 00005 00006 *************************************************************************** 00007 * Please see toplevel file COPYING for license details * 00008 ***************************************************************************/ 00009 00010 #ifdef HAVE_CONFIG_H 00011 # include <config.h> 00012 #endif 00013 00014 #define DISABLE_DEBUGLOG 00015 00016 00017 #include "o_box_l.h" 00018 #include "htmlctx_l.h" 00019 00020 #include <gwenhywfar/debug.h> 00021 00022 00023 00024 #define LINE_EXTRA_OFFSET_DIV 20 00025 00026 00027 00028 static int HtmlObject_Box_Layout(HTML_OBJECT *o) { 00029 HTML_OBJECT *c; 00030 HTML_OBJECT *cFirstInLine; 00031 GWEN_XML_CONTEXT *ctx; 00032 int w; 00033 int h; 00034 int x=0; 00035 int y=0; 00036 int maxX=0; 00037 int lineHeight=0; 00038 int rv; 00039 int resX; 00040 int resY; 00041 00042 w=HtmlObject_GetWidth(o); 00043 h=HtmlObject_GetHeight(o); 00044 00045 ctx=HtmlObject_GetXmlCtx(o); 00046 resX=HtmlCtx_GetResolutionX(ctx); 00047 resY=HtmlCtx_GetResolutionY(ctx); 00048 00049 c=HtmlObject_Tree_GetFirstChild(o); 00050 cFirstInLine=c; 00051 while(c) { 00052 int th; 00053 00054 if ((HtmlObject_GetFlags(c) & HTML_OBJECT_FLAGS_START_ON_NEWLINE) && 00055 x>0) { 00056 /* next line */ 00057 if (x>maxX) 00058 maxX=x; 00059 00060 /* possibly justify */ 00061 if (w!=-1 && x<w) { 00062 int diff=0; 00063 00064 if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_RIGHT) 00065 diff=w-x; 00066 else if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_HCENTER) { 00067 diff=(w-x)>>1; 00068 } 00069 if (diff) { 00070 HTML_OBJECT *ct; 00071 00072 ct=cFirstInLine; 00073 while(ct) { 00074 HtmlObject_SetX(ct, HtmlObject_GetX(ct)+diff); 00075 if (ct==c) 00076 break; 00077 ct=HtmlObject_Tree_GetNext(ct); 00078 } 00079 } 00080 } 00081 00082 x=0; 00083 y+=lineHeight+(resY/LINE_EXTRA_OFFSET_DIV); 00084 lineHeight=0; 00085 cFirstInLine=HtmlObject_Tree_GetNext(c); 00086 } 00087 00088 HtmlObject_SetHeight(c, -1); 00089 if (w==-1) { 00090 HtmlObject_SetWidth(c, -1); 00091 rv=HtmlObject_Layout(c); 00092 if (rv<0) { 00093 DBG_INFO(GWEN_LOGDOMAIN, "here (%d)", rv); 00094 return rv; 00095 } 00096 } 00097 else { 00098 int tw; 00099 00100 tw=w-x; 00101 HtmlObject_SetWidth(c, tw); 00102 rv=HtmlObject_Layout(c); 00103 if (rv<0) { 00104 DBG_INFO(GWEN_LOGDOMAIN, "here (%d)", rv); 00105 return rv; 00106 } 00107 00108 if (HtmlObject_GetWidth(c)>tw && x>0) { 00109 /* next line */ 00110 if (x>maxX) 00111 maxX=x; 00112 00113 /* possibly justify */ 00114 if (x<w) { 00115 int diff=0; 00116 00117 if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_RIGHT) 00118 diff=w-x; 00119 else if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_HCENTER) { 00120 diff=(w-x)>>1; 00121 } 00122 if (diff) { 00123 HTML_OBJECT *ct; 00124 00125 ct=cFirstInLine; 00126 while(ct) { 00127 HtmlObject_SetX(ct, HtmlObject_GetX(ct)+diff); 00128 if (ct==c) 00129 break; 00130 ct=HtmlObject_Tree_GetNext(ct); 00131 } 00132 } 00133 } 00134 00135 x=0; 00136 y+=lineHeight+(resY/LINE_EXTRA_OFFSET_DIV); 00137 lineHeight=0; 00138 cFirstInLine=HtmlObject_Tree_GetNext(c); 00139 } 00140 } 00141 00142 HtmlObject_SetX(c, x); 00143 HtmlObject_SetY(c, y); 00144 00145 th=HtmlObject_GetHeight(c); 00146 if (th>lineHeight) 00147 lineHeight=th; 00148 00149 x+=HtmlObject_GetWidth(c); 00150 00151 if ((HtmlObject_GetFlags(c) & HTML_OBJECT_FLAGS_END_WITH_NEWLINE)) { 00152 if (x>0) { 00153 /* next line */ 00154 if (x>maxX) 00155 maxX=x; 00156 00157 /* possibly justify */ 00158 if (x<w) { 00159 int diff=0; 00160 00161 if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_RIGHT) 00162 diff=w-x; 00163 else if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_HCENTER) { 00164 diff=(w-x)>>1; 00165 } 00166 if (diff) { 00167 HTML_OBJECT *ct; 00168 00169 ct=cFirstInLine; 00170 while(ct) { 00171 HtmlObject_SetX(ct, HtmlObject_GetX(ct)+diff); 00172 if (ct==c) 00173 break; 00174 ct=HtmlObject_Tree_GetNext(ct); 00175 } 00176 } 00177 } 00178 } 00179 00180 x=0; 00181 if (lineHeight==0) { 00182 HTML_PROPS *pr; 00183 HTML_FONT *fnt; 00184 00185 pr=HtmlObject_GetProperties(o); 00186 assert(pr); 00187 fnt=HtmlProps_GetFont(pr); 00188 lineHeight=HtmlCtx_GetTextHeight(HtmlObject_GetXmlCtx(o), fnt, "ABCD"); 00189 } 00190 y+=lineHeight+(resY/LINE_EXTRA_OFFSET_DIV); 00191 lineHeight=0; 00192 cFirstInLine=HtmlObject_Tree_GetNext(c); 00193 } 00194 00195 c=HtmlObject_Tree_GetNext(c); 00196 } 00197 00198 if (x>0) { 00199 /* next line */ 00200 if (x>maxX) 00201 maxX=x; 00202 00203 /* possibly justify */ 00204 if (x<w) { 00205 int diff=0; 00206 00207 if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_RIGHT) 00208 diff=w-x; 00209 else if (HtmlObject_GetFlags(o) & HTML_OBJECT_FLAGS_JUSTIFY_HCENTER) { 00210 diff=(w-x)>>1; 00211 } 00212 if (diff) { 00213 HTML_OBJECT *ct; 00214 00215 ct=cFirstInLine; 00216 while(ct) { 00217 HtmlObject_SetX(ct, HtmlObject_GetX(ct)+diff); 00218 ct=HtmlObject_Tree_GetNext(ct); 00219 } 00220 } 00221 } 00222 00223 x=0; 00224 y+=lineHeight+(resY/LINE_EXTRA_OFFSET_DIV); 00225 lineHeight=0; 00226 } 00227 00228 /* finish layout */ 00229 HtmlObject_SetWidth(o, maxX+1); 00230 HtmlObject_SetHeight(o, y+1); 00231 return 0; 00232 } 00233 00234 00235 00236 HTML_OBJECT *HtmlObject_Box_new(GWEN_XML_CONTEXT *ctx) { 00237 HTML_OBJECT *o; 00238 00239 o=HtmlObject_new(ctx, HtmlObjectType_Box); 00240 HtmlObject_SetLayoutFn(o, HtmlObject_Box_Layout); 00241 00242 return o; 00243 } 00244 00245 00246 00247 00248