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cmSvgWriter.h/c,Makefile.am : Initial commit.

master
kevin 8 years ago
parent
commit
7be4937965
3 changed files with 274 additions and 2 deletions
  1. 5
    2
      Makefile.am
  2. 234
    0
      cmSvgWriter.c
  3. 35
    0
      cmSvgWriter.h

+ 5
- 2
Makefile.am View File

@@ -18,8 +18,11 @@ cmSRC += src/libcm/cmData.c src/libcm/cmLib.c src/libcm/cmText.c src/libcm/cmTex
18 18
 cmHDR += src/libcm/cmMath.h src/libcm/cmGnuPlot.h src/libcm/cmKeyboard.h  src/libcm/cmStrStream.h
19 19
 cmSRC += src/libcm/cmMath.c src/libcm/cmGnuPlot.c src/libcm/cmKeyboard.c  src/libcm/cmStrStream.c
20 20
 
21
-cmHDR += src/libcm/cmLinkedHeap.h src/libcm/cmMallocDebug.h src/libcm/cmLex.h src/libcm/cmJson.h src/libcm/cmXml.h src/libcm/cmPrefs.h src/libcm/cmStack.h src/libcm/cmArray.h
22
-cmSRC += src/libcm/cmLinkedHeap.c src/libcm/cmMallocDebug.c src/libcm/cmLex.c src/libcm/cmJson.c src/libcm/cmXml.c src/libcm/cmPrefs.c src/libcm/cmStack.c src/libcm/cmArray.c
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+cmHDR += src/libcm/cmLinkedHeap.h src/libcm/cmMallocDebug.h src/libcm/cmLex.h src/libcm/cmJson.h src/libcm/cmXml.h 
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+cmSRC += src/libcm/cmLinkedHeap.c src/libcm/cmMallocDebug.c src/libcm/cmLex.c src/libcm/cmJson.c src/libcm/cmXml.c 
23
+
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+cmHDR += src/libcm/cmPrefs.h src/libcm/cmStack.h src/libcm/cmArray.h src/libcm/cmSvgWriter.h
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+cmSRC += src/libcm/cmPrefs.c src/libcm/cmStack.c src/libcm/cmArray.c src/libcm/cmSvgWriter.c
23 26
 
24 27
 cmHDR += src/libcm/cmUdpPort.h src/libcm/cmUdpNet.h src/libcm/cmVirtNet.h
25 28
 cmSRC += src/libcm/cmUdpPort.c src/libcm/cmUdpNet.c src/libcm/cmVirtNet.c

+ 234
- 0
cmSvgWriter.c View File

@@ -0,0 +1,234 @@
1
+#include "cmPrefix.h"
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+#include "cmGlobal.h"
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+#include "cmFloatTypes.h"
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+#include "cmRpt.h"
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+#include "cmErr.h"
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+#include "cmCtx.h"
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+#include "cmMem.h"
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+#include "cmMallocDebug.h"
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+#include "cmLinkedHeap.h"
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+#include "cmTime.h"
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+#include "cmText.h"
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+#include "cmFile.h"
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+#include "cmSvgWriter.h"
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+
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+enum
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+{
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+  kRectSvgId,
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+  kLineSvgId,
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+  kTextSvgId
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+};
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+
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+typedef struct cmSvgEle_str
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+{
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+  unsigned  id;
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+  double    x0;
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+  double    y0;
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+  double    x1;
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+  double    y1;
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+  cmChar_t* text;
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+  cmChar_t* cssClass;
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+  struct cmSvgEle_str* link;
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+} cmSvgEle_t;
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+
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+typedef struct cmSvg_str
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+{
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+  cmErr_t     err;
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+  cmLHeapH_t  lhH;
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+  cmSvgEle_t* elist;
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+  cmSvgEle_t* eol; 
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+} cmSvg_t;
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+
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+cmSvgH_t cmSvgNullHandle = cmSTATIC_NULL_HANDLE;
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+
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+cmSvg_t* _cmSvgHandleToPtr( cmSvgH_t h )
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+{
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+  cmSvg_t* p = (cmSvg_t*)h.h;
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+  assert(p != NULL );
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+  return p;
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+}
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+
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+cmSvgRC_t _cmSvgInsertEle( cmSvg_t* p, unsigned id, double x0, double y0, double x1, double y1, const cmChar_t* text, const cmChar_t* class )
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+{
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+  cmSvgEle_t* e = cmLhAllocZ(p->lhH,cmSvgEle_t,1);
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+
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+  e->id       = id;
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+  e->x0       = x0;
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+  e->y0       = y0;
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+  e->x1       = x1;
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+  e->y1       = y1;
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+  e->text     = text==NULL ? "" : cmLhAllocStr(p->lhH,text);
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+  e->cssClass = cmLhAllocStr(p->lhH,class);
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+  
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+  if( p->eol == NULL )
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+    p->elist = p->eol = e;
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+  else
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+    p->eol->link = e;
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+
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+  p->eol = e;
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+
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+  return kOkSvgRC;
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+}
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+
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+cmSvgRC_t _cmSvgWriterFree( cmSvg_t* p )
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+{
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+  cmLHeapDestroy(&p->lhH);
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+  cmMemFree(p);
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+  return kOkSvgRC;
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+}
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+
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+cmSvgRC_t cmSvgWriterAlloc( cmCtx_t* ctx, cmSvgH_t* hp )
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+{
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+  cmSvgRC_t rc;
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+  if((rc = cmSvgWriterFree(hp)) != kOkSvgRC )
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+    return rc;
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+
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+  cmSvg_t* p = cmMemAllocZ(cmSvg_t,1);
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+
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+  cmErrSetup(&p->err,&ctx->rpt,"SVG Writer");
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+
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+  // create a local linked heap
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+  if( cmLHeapIsValid( p->lhH = cmLHeapCreate(8196,ctx)) == false )
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+  {
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+    rc = cmErrMsg(&p->err,kLHeapFailSvgRC,"Lheap create failed.");
94
+    goto errLabel;
95
+  }
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+  
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+  hp->h = p;
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+
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+ errLabel:
100
+  if( rc != kOkSvgRC )
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+    _cmSvgWriterFree(p);
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+
103
+  return rc;
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+}
105
+
106
+cmSvgRC_t cmSvgWriterFree( cmSvgH_t* hp )
107
+{
108
+  cmSvgRC_t rc = kOkSvgRC;
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+  
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+  if( hp==NULL || cmSvgWriterIsValid(*hp)==false )
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+    return kOkSvgRC;
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+
113
+  cmSvg_t* p = _cmSvgHandleToPtr(*hp);
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+  
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+  if((rc = _cmSvgWriterFree(p)) != kOkSvgRC )
116
+    return rc;
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+
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+  hp->h = NULL;
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+  
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+  return rc;
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+}
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+
123
+bool      cmSvgWriterIsValid( cmSvgH_t h )
124
+{ return h.h != NULL; }
125
+
126
+cmSvgRC_t cmSvgWriterRect( cmSvgH_t h, double  x, double y,  double ww,  double hh,  const cmChar_t* cssClassLabel )
127
+{
128
+  cmSvg_t* p = _cmSvgHandleToPtr(h);
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+  return  _cmSvgInsertEle( p, kRectSvgId, x, y, x+ww, y+hh, NULL, cssClassLabel==NULL?"rectclass":cssClassLabel );
130
+}
131
+
132
+cmSvgRC_t cmSvgWriterLine( cmSvgH_t h, double x0, double y0, double x1, double y1, const cmChar_t* cssClassLabel )
133
+{
134
+  cmSvg_t* p = _cmSvgHandleToPtr(h);
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+  return  _cmSvgInsertEle( p, kLineSvgId, x0, y0, x1, y1, NULL, cssClassLabel==NULL?"lineclass":cssClassLabel );
136
+}
137
+
138
+cmSvgRC_t cmSvgWriterText( cmSvgH_t h, double  x, double y,  const cmChar_t* text,     const cmChar_t* cssClassLabel )
139
+{
140
+  cmSvg_t* p = _cmSvgHandleToPtr(h);
141
+  return  _cmSvgInsertEle( p, kTextSvgId, x, y, 0, 0, text==NULL?"":text, cssClassLabel==NULL?"textclass":cssClassLabel );
142
+}
143
+
144
+void _cmSvgSize( cmSvg_t* p, double* widthRef, double* heightRef )
145
+{
146
+  *widthRef  = 0;
147
+  *heightRef = 0;
148
+
149
+  if( p->elist == NULL )
150
+    return; 
151
+  
152
+  cmSvgEle_t* e     = p->elist;
153
+  double      min_x = cmMin(e->x0,e->x1);
154
+  double      max_x = cmMax(e->x0,e->x1);
155
+  double      min_y = cmMin(e->y0,e->y1);
156
+  double      max_y = cmMax(e->y0,e->y1);
157
+
158
+  for(e=e->link; e!=NULL; e=e->link)
159
+  {
160
+    min_x = cmMin(cmMin(min_x,e->x0),e->x1);
161
+    max_x = cmMax(cmMax(max_x,e->x0),e->x1);
162
+    min_y = cmMin(cmMin(min_y,e->y0),e->y1);
163
+    max_y = cmMax(cmMax(max_y,e->y0),e->y1);
164
+  }
165
+
166
+  *widthRef  = max_x - min_x;
167
+  *heightRef = max_y - min_y;
168
+}
169
+
170
+
171
+cmSvgRC_t cmSvgWriterWrite( cmSvgH_t h,  const cmChar_t* cssFn, const cmChar_t* outFn )
172
+{
173
+  cmSvgRC_t   rc        = kOkSvgRC;
174
+  cmSvg_t*    p         = _cmSvgHandleToPtr(h);
175
+  double      svgWidth  = 0;
176
+  double      svgHeight = 0;
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+  cmSvgEle_t* e         = p->elist;
178
+  cmFileH_t   fH        = cmFileNullHandle;
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+  
180
+  _cmSvgSize(p, &svgWidth, &svgHeight );
181
+  
182
+  if( cmFileOpen(&fH,outFn,kWriteFileFl,p->err.rpt) != kOkFileRC )
183
+    return cmErrMsg(&p->err,kFileFailSvgRC,"SVG file create failed for '%s'.",cmStringNullGuard(outFn));
184
+
185
+  if( cmFilePrintf(fH,"<!DOCTYPE html>\n<html>\n<head><link rel=\"stylesheet\" type=\"text/css\" href=\"%s\"></head><body>\n<svg width=\"%f\" height=\"%f\">\n",svgWidth,svgHeight,cssFn) != kOkFileRC )
186
+  {
187
+    rc = cmErrMsg(&p->err,kFileFailSvgRC,"File prefix write failed.");
188
+    goto errLabel;
189
+  }
190
+
191
+  for(; e!=NULL; e=e->link)
192
+  {
193
+    switch( e->id )
194
+    {
195
+      case kRectSvgId:
196
+        if( cmFilePrintf(fH,"<rect x=\"%f\" y=\"%f\" width=\"%f\" height=\"%f\" class=\"%s\"/>\n",e->x0,e->y0,e->x1-e->x0,e->y1-e->y0,e->cssClass) != kOkFileRC )
197
+          rc = kFileFailSvgRC;
198
+        break;
199
+        
200
+      case kLineSvgId:
201
+        if( cmFilePrintf(fH,"<line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" class=\"%s\"/>\n",e->x0,e->y0,e->x1,e->y1,e->cssClass) != kOkFileRC )
202
+          rc = kFileFailSvgRC;
203
+        break;
204
+        
205
+      case kTextSvgId:
206
+        if( cmFilePrintf(fH,"<text x=\"%f\" y=\"%f\" class=\"%s\">%s</text>\n",e->x0,e->y0,e->cssClass,e->text) != kOkFileRC )
207
+          rc = kFileFailSvgRC;        
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+        break;
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+        
210
+      default:
211
+        { assert(0); }
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+      
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+    }
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+
215
+    if( rc != kOkSvgRC )
216
+    {
217
+      rc = cmErrMsg(&p->err,kFileFailSvgRC,"Element write failed.");
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+      break;
219
+    }
220
+  }
221
+  
222
+  if( cmFilePrint(fH,"</svg>\n</body>\n</html>\n") != kOkFileRC )
223
+  {
224
+    rc = cmErrMsg(&p->err,kFileFailSvgRC,"File suffix write failed.");
225
+    goto errLabel;
226
+  }
227
+
228
+
229
+ errLabel:
230
+  cmFileClose(&fH);
231
+
232
+  return rc;
233
+}
234
+

+ 35
- 0
cmSvgWriter.h View File

@@ -0,0 +1,35 @@
1
+#ifndef cmSvgWriter_h
2
+#define cmSvgWriter_h
3
+
4
+#ifdef __cplusplus
5
+extern "C" {
6
+#endif
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+
8
+enum
9
+{
10
+  kOkSvgRC = cmOkRC,
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+  kFileFailSvgRC,
12
+  kLHeapFailSvgRC
13
+};
14
+
15
+  typedef cmRC_t     cmSvgRC_t;
16
+  typedef cmHandle_t cmSvgH_t;
17
+
18
+  extern cmSvgH_t cmSvgNullHandle;
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+  
20
+  cmSvgRC_t cmSvgWriterAlloc( cmCtx_t* ctx, cmSvgH_t* hp );
21
+  cmSvgRC_t cmSvgWriterFree(    cmSvgH_t* hp );
22
+  bool      cmSvgWriterIsValid( cmSvgH_t h );
23
+  
24
+  cmSvgRC_t cmSvgWriterRect( cmSvgH_t h, double  x, double y,  double ww,  double hh,  const cmChar_t* cssClassLabel );
25
+  cmSvgRC_t cmSvgWriterLine( cmSvgH_t h, double x0, double y0, double x1, double y1, const cmChar_t* cssClassLabel );
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+  cmSvgRC_t cmSvgWriterText( cmSvgH_t h, double  x, double y,  const cmChar_t* text, const cmChar_t* cssClassLabel );
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+
28
+  cmSvgRC_t cmSvgWriterWrite( cmSvgH_t h, const cmChar_t* cssFn, const cmChar_t* outFn );
29
+  
30
+#ifdef __cplusplus
31
+}
32
+#endif
33
+
34
+
35
+#endif

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