+
+
+WX_DECLARE_OBJARRAY(int, CoordArray);
+#include <wx/arrimpl.cpp> // this is a magic incantation which must be done!
+WX_DEFINE_OBJARRAY(CoordArray);
+
+
+//--------------------------------------------------------------------------------
+// wxHtmlImageMapAreaCell
+// 0-width, 0-height cell that represents single area in imagemap
+// (it's GetLink is called from wxHtmlImageCell's)
+//--------------------------------------------------------------------------------
+
+class wxHtmlImageMapAreaCell : public wxHtmlCell
+{
+public:
+ enum celltype{ CIRCLE, RECT, POLY };
+protected:
+ CoordArray coords;
+ celltype type;
+ int radius;
+public:
+ wxHtmlImageMapAreaCell( celltype t, wxString &coords );
+ virtual wxString GetLink( int x = 0, int y = 0 ) const;
+};
+
+
+
+
+
+wxHtmlImageMapAreaCell::wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::celltype t, wxString &incoords )
+{
+ int i;
+ wxString x = incoords, y;
+
+ type = t;
+ while ((i = x.Find( ',' )) != -1)
+ {
+ coords.Add( atoi( x.Left( i ).c_str() ) );
+ x = x.Mid( i + 1 );
+ }
+ coords.Add( atoi( x.c_str() ) );
+}
+
+wxString wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
+{
+ switch (type)
+ {
+ case RECT:
+ {
+ int l, t, r, b;
+
+ l = coords[ 0 ];
+ t = coords[ 1 ];
+ r = coords[ 2 ];
+ b = coords[ 3 ];
+ if (x >= l && x <= r && y >= t && y <= b)
+ {
+ return m_Link;
+ }
+ break;
+ }
+ case CIRCLE:
+ {
+ int l, t, r;
+ double d;
+
+ l = coords[ 0 ];
+ t = coords[ 1 ];
+ r = coords[ 2 ];
+ d = sqrt( ((x - l) * (x - l)) + ((y - t) * (y - t)) );
+ if (d < (double)r)
+ {
+ return m_Link;
+ }
+ }
+ break;
+ case POLY:
+ {
+ if (coords.GetCount() >= 6)
+ {
+ int intersects = 0;
+ int wherex = x;
+ int wherey = y;
+ int totalv = coords.GetCount() / 2;
+ int totalc = totalv * 2;
+ int xval = coords[totalc - 2];
+ int yval = coords[totalc - 1];
+ int end = totalc;
+ int pointer = 1;
+
+ if ((yval >= wherey) != (coords[pointer] >= wherey))
+ {
+ if ((xval >= wherex) == (coords[0] >= wherex))
+ {
+ intersects += (xval >= wherex) ? 1 : 0;
+ }
+ else
+ {
+ intersects += ((xval - (yval - wherey) *
+ (coords[0] - xval) /
+ (coords[pointer] - yval)) >= wherex) ? 1 : 0;
+ }
+ }
+
+ while (pointer < end)
+ {
+ yval = coords[pointer];
+ pointer += 2;
+ if (yval >= wherey)
+ {
+ while((pointer < end) && (coords[pointer] >= wherey))
+ {
+ pointer+=2;
+ }
+ if (pointer >= end)
+ {
+ break;
+ }
+ if ((coords[pointer-3] >= wherex) ==
+ (coords[pointer-1] >= wherex))
+ {
+ intersects += (coords[pointer-3] >= wherex) ? 1 : 0;
+ }
+ else
+ {
+ intersects +=
+ ((coords[pointer-3] - (coords[pointer-2] - wherey) *
+ (coords[pointer-1] - coords[pointer-3]) /
+ (coords[pointer] - coords[pointer - 2])) >= wherex) ? 1:0;
+ }
+ }
+ else
+ {
+ while((pointer < end) && (coords[pointer] < wherey))
+ {
+ pointer+=2;
+ }
+ if (pointer >= end)
+ {
+ break;
+ }
+ if ((coords[pointer-3] >= wherex) ==
+ (coords[pointer-1] >= wherex))
+ {
+ intersects += (coords[pointer-3] >= wherex) ? 1:0;
+ }
+ else
+ {
+ intersects +=
+ ((coords[pointer-3] - (coords[pointer-2] - wherey) *
+ (coords[pointer-1] - coords[pointer-3]) /
+ (coords[pointer] - coords[pointer - 2])) >= wherex) ? 1:0;
+ }
+ }
+ }
+ if ((intersects & 1) != 0)
+ {
+ return m_Link;
+ }
+ }
+ }
+ break;
+ }
+ if (m_Next)
+ {
+ wxHtmlImageMapAreaCell *a = (wxHtmlImageMapAreaCell*)m_Next;
+ return a->GetLink( x, y );
+ }
+ return wxEmptyString;
+}
+
+
+
+
+
+
+
+
+//--------------------------------------------------------------------------------
+// wxHtmlImageMapCell
+// 0-width, 0-height cell that represents map from imagemaps
+// it is always placed before wxHtmlImageMapAreaCells
+// It responds to Find(HTML_COND_ISIMAGEMAP)
+//--------------------------------------------------------------------------------
+
+
+class wxHtmlImageMapCell : public wxHtmlCell
+{
+public:
+ wxHtmlImageMapCell( wxString &name );
+protected:
+ wxString m_Name;
+public:
+ virtual wxString GetLink( int x = 0, int y = 0 ) const;
+ virtual const wxHtmlCell *Find( int cond, const void *param ) const;
+};
+
+
+wxHtmlImageMapCell::wxHtmlImageMapCell( wxString &name )
+{
+ m_Name = name ;
+}
+
+wxString wxHtmlImageMapCell::GetLink( int x, int y ) const
+{
+ wxHtmlImageMapAreaCell *a = (wxHtmlImageMapAreaCell*)m_Next;
+ if (a)
+ return a->GetLink( x, y );
+ return wxHtmlCell::GetLink( x, y );
+}
+
+const wxHtmlCell *wxHtmlImageMapCell::Find( int cond, const void *param ) const
+{
+ if (cond == HTML_COND_ISIMAGEMAP)
+ {
+ if (m_Name == *((wxString*)(param)))
+ return this;
+ }
+ return wxHtmlCell::Find(cond, param);
+}
+
+
+
+
+
projects / wxWidgets.git / blobdiff