Don't complain under MicroWindows if a wxDC's HDC is NULL - it happens

[wxWidgets.git] / src / html / m_image.cpp

diff --git a/src/html/m_image.cpp b/src/html/m_image.cpp
index 35165bb4f44406f564b4fd74cf4885080371f520..8edf713086b090211f5b992c7e86aacff8241de9 100644 (file)
--- a/src/html/m_image.cpp
+++ b/src/html/m_image.cpp
@@ -14,7 +14,7 @@
 #include "wx/wxprec.h"
 
 #include "wx/defs.h"
 #include "wx/wxprec.h"
 
 #include "wx/defs.h"

-#if wxUSE_HTML
+#if wxUSE_HTML && wxUSE_STREAMS

 
 #ifdef __BORDLANDC__
 #pragma hdrstop
 
 #ifdef __BORDLANDC__
 #pragma hdrstop


@@ -73,7 +73,8 @@ wxHtmlImageMapAreaCell::wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::celltype
     wxString x = incoords, y;
 
     type = t;
     wxString x = incoords, y;
 
     type = t;

-    while ((i = x.Find( ',' )) != -1) {
+    while ((i = x.Find( ',' )) != -1) 
+    {

         coords.Add( (int)(pixel_scale * (double)wxAtoi( x.Left( i ).c_str())) );
         x = x.Mid( i + 1 );
     }
         coords.Add( (int)(pixel_scale * (double)wxAtoi( x.Left( i ).c_str())) );
         x = x.Mid( i + 1 );
     }


@@ -82,7 +83,8 @@ wxHtmlImageMapAreaCell::wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::celltype
 
 wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
 {
 
 wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
 {

-    switch (type) {
+    switch (type) 
+    {

         case RECT:
             {
                 int l, t, r, b;
         case RECT:
             {
                 int l, t, r, b;


@@ -91,7 +93,8 @@ wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
                 t = coords[ 1 ];
                 r = coords[ 2 ];
                 b = coords[ 3 ];
                 t = coords[ 1 ];
                 r = coords[ 2 ];
                 b = coords[ 3 ];

-                if (x >= l && x <= r && y >= t && y <= b) {
+                if (x >= l && x <= r && y >= t && y <= b) 
+                       {

                     return m_Link;
                 }
                 break;
                     return m_Link;
                 }
                 break;


@@ -105,14 +108,16 @@ wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
                 t = coords[ 1 ];
                 r = coords[ 2 ];
                 d = sqrt( (double) (((x - l) * (x - l)) + ((y - t) * (y - t))) );
                 t = coords[ 1 ];
                 r = coords[ 2 ];
                 d = sqrt( (double) (((x - l) * (x - l)) + ((y - t) * (y - t))) );

-                if (d < (double)r) {
+                if (d < (double)r) 
+                       {

                     return m_Link;
                 }
             }
             break;
         case POLY:
             {
                     return m_Link;
                 }
             }
             break;
         case POLY:
             {

-                if (coords.GetCount() >= 6) {
+                if (coords.GetCount() >= 6) 
+                       {

                     int intersects = 0;
                     int wherex = x;
                     int wherey = y;
                     int intersects = 0;
                     int wherex = x;
                     int wherey = y;


@@ -123,46 +128,63 @@ wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
                     int end = totalc;
                     int pointer = 1;
 
                     int end = totalc;
                     int pointer = 1;
 

-                    if ((yval >= wherey) != (coords[pointer] >= wherey)) {
-                        if ((xval >= wherex) == (coords[0] >= wherex)) {
+                    if ((yval >= wherey) != (coords[pointer] >= wherey)) 
+                           {
+                        if ((xval >= wherex) == (coords[0] >= wherex)) 
+                                   {

                             intersects += (xval >= wherex) ? 1 : 0;
                             intersects += (xval >= wherex) ? 1 : 0;

-                        } else {
+                        } 
+                                   else 
+                                       {

                             intersects += ((xval - (yval - wherey) *
                                             (coords[0] - xval) /
                                             (coords[pointer] - yval)) >= wherex) ? 1 : 0;
                         }
                     }
 
                             intersects += ((xval - (yval - wherey) *
                                             (coords[0] - xval) /
                                             (coords[pointer] - yval)) >= wherex) ? 1 : 0;
                         }
                     }
 

-                    while (pointer < end) {
+                    while (pointer < end) 
+                           {

                         yval = coords[pointer];
                         pointer += 2;
                         yval = coords[pointer];
                         pointer += 2;

-                        if (yval >= wherey) {
-                            while ((pointer < end) && (coords[pointer] >= wherey)) {
+                        if (yval >= wherey) 
+                                   {
+                            while ((pointer < end) && (coords[pointer] >= wherey)) 
+                                       {

                                 pointer += 2;
                             }
                                 pointer += 2;
                             }

-                            if (pointer >= end) {
+                            if (pointer >= end) 
+                                       {

                                 break;
                             }
                             if ((coords[pointer - 3] >= wherex) ==
                                     (coords[pointer - 1] >= wherex)) {
                                 intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;
                                 break;
                             }
                             if ((coords[pointer - 3] >= wherex) ==
                                     (coords[pointer - 1] >= wherex)) {
                                 intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;

-                            } else {
+                            } 
+                                       else 
+                                               {

                                 intersects +=
                                     ((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
                                       (coords[pointer - 1] - coords[pointer - 3]) /
                                       (coords[pointer] - coords[pointer - 2])) >= wherex) ? 1 : 0;
                             }
                                 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)) {
+                        } 
+                                   else 
+                                       {
+                            while ((pointer < end) && (coords[pointer] < wherey)) 
+                                       {

                                 pointer += 2;
                             }
                                 pointer += 2;
                             }

-                            if (pointer >= end) {
+                            if (pointer >= end) 
+                                       {

                                 break;
                             }
                             if ((coords[pointer - 3] >= wherex) ==
                                 break;
                             }
                             if ((coords[pointer - 3] >= wherex) ==

-                                    (coords[pointer - 1] >= wherex)) {
+                                    (coords[pointer - 1] >= wherex)) 
+                                           {

                                 intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;
                                 intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;

-                            } else {
+                            } 
+                                       else 
+                                               {

                                 intersects +=
                                     ((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
                                       (coords[pointer - 1] - coords[pointer - 3]) /
                                 intersects +=
                                     ((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
                                       (coords[pointer - 1] - coords[pointer - 3]) /


@@ -170,14 +192,17 @@ wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
                             }
                         }
                     }
                             }
                         }
                     }

-                    if ((intersects & 1) != 0) {
+                    if ((intersects & 1) != 0) 
+                           {

                         return m_Link;
                     }
                 }
             }
             break;
     }
                         return m_Link;
                     }
                 }
             }
             break;
     }

-    if (m_Next) {
+
+    if (m_Next) 
+    {

         wxHtmlImageMapAreaCell  *a = (wxHtmlImageMapAreaCell*)m_Next;
         return a->GetLink( x, y );
     }
         wxHtmlImageMapAreaCell  *a = (wxHtmlImageMapAreaCell*)m_Next;
         return a->GetLink( x, y );
     }


@@ -226,7 +251,8 @@ wxHtmlLinkInfo *wxHtmlImageMapCell::GetLink( int x, int y ) const
 
 const wxHtmlCell *wxHtmlImageMapCell::Find( int cond, const void *param ) const
 {
 
 const wxHtmlCell *wxHtmlImageMapCell::Find( int cond, const void *param ) const
 {

-    if (cond == wxHTML_COND_ISIMAGEMAP) {
+    if (cond == wxHTML_COND_ISIMAGEMAP) 
+    {

         if (m_Name == *((wxString*)(param)))
             return this;
     }
         if (m_Name == *((wxString*)(param)))
             return this;
     }


@@ -246,10 +272,11 @@ class wxHtmlImageCell : public wxHtmlCell
 {
     public:
         wxBitmap *m_Image;
 {
     public:
         wxBitmap *m_Image;

+        double m_Scale;

         wxHtmlImageMapCell *m_ImageMap;
         wxString m_MapName;
 
         wxHtmlImageMapCell *m_ImageMap;
         wxString m_MapName;
 

-        wxHtmlImageCell(wxFSFile *input, int w = -1, int h = -1, int align = wxHTML_ALIGN_BOTTOM, wxString mapname = wxEmptyString);
+        wxHtmlImageCell(wxFSFile *input, int w = -1, int h = -1, double scale = 1.0, int align = wxHTML_ALIGN_BOTTOM, wxString mapname = wxEmptyString);

         ~wxHtmlImageCell() {if (m_Image) delete m_Image; }
         void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
         virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
         ~wxHtmlImageCell() {if (m_Image) delete m_Image; }
         void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
         virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;


@@ -262,28 +289,36 @@ class wxHtmlImageCell : public wxHtmlCell
 // wxHtmlImageCell
 //--------------------------------------------------------------------------------
 
 // wxHtmlImageCell
 //--------------------------------------------------------------------------------
 

-wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, int align, wxString mapname) : wxHtmlCell()
+wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, double scale, int align, wxString mapname) : wxHtmlCell()

 {
     wxImage *img;
 {
     wxImage *img;

-    int ww, hh;
-    wxInputStream *s = input -> GetStream();
-
+    int ww, hh, bw, bh;
+    wxInputStream *s = input->GetStream();
+    
+    m_Scale = scale;

     img = new wxImage(*s, wxBITMAP_TYPE_ANY);
     img = new wxImage(*s, wxBITMAP_TYPE_ANY);

-

     m_Image = NULL;
     m_Image = NULL;

-    if (img && (img -> Ok())) {
-        ww = img -> GetWidth();
-        hh = img -> GetHeight();
-        if (w != -1) m_Width = w; else m_Width = ww;
-        if (h != -1) m_Height = h; else m_Height = hh;
-        if ((m_Width != ww) || (m_Height != hh)) {
-            wxImage img2 = img -> Scale(m_Width, m_Height);
+    if (img && (img->Ok())) 
+    {
+        ww = img->GetWidth();
+        hh = img->GetHeight();
+        if (w != -1) bw = w; else bw = ww;
+        if (h != -1) bh = h; else bh = hh;
+
+        m_Width = (int)(scale * (double)bw);
+        m_Height = (int)(scale * (double)bh);
+
+        if ((bw != ww) || (bh != hh)) 
+           {
+            wxImage img2 = img->Scale(bw, bh);

             m_Image = new wxBitmap(img2.ConvertToBitmap());
             m_Image = new wxBitmap(img2.ConvertToBitmap());

-        } else
-            m_Image = new wxBitmap(img -> ConvertToBitmap());
+        } 
+           else
+            m_Image = new wxBitmap(img->ConvertToBitmap());

         delete img;
     }
         delete img;
     }

-    switch (align) {
+    switch (align) 
+    {

         case wxHTML_ALIGN_TOP :
             m_Descent = m_Height;
             break;
         case wxHTML_ALIGN_TOP :
             m_Descent = m_Height;
             break;


@@ -306,8 +341,16 @@ wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, int align, wxStr
 void wxHtmlImageCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
 {
     if (m_Image)
 void wxHtmlImageCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
 {
     if (m_Image)

-//        dc.DrawBitmap(*m_Image, x + m_PosX, y + m_PosY, (m_Image->GetMask() != (wxMask*) 0));
-        dc.DrawBitmap(*m_Image, x + m_PosX, y + m_PosY, TRUE);
+    {
+        double us_x, us_y;
+        dc.GetUserScale(&us_x, &us_y);
+        dc.SetUserScale(us_x * m_Scale, us_y * m_Scale);
+    
+//      dc.DrawBitmap(*m_Image, x + m_PosX, y + m_PosY, (m_Image->GetMask() != (wxMask*) 0));
+        dc.DrawBitmap(*m_Image, (int) ((x + m_PosX) / m_Scale), 
+                                (int) ((y + m_PosY) / m_Scale), TRUE);
+        dc.SetUserScale(us_x, us_y);
+    }

     wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 }
 
     wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
 }
 


@@ -315,20 +358,23 @@ wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
 {
     if (m_MapName.IsEmpty())
         return wxHtmlCell::GetLink( x, y );
 {
     if (m_MapName.IsEmpty())
         return wxHtmlCell::GetLink( x, y );

-    if (!m_ImageMap) {
+    if (!m_ImageMap) 
+    {

         wxHtmlContainerCell *p, *op;
         op = p = GetParent();
         wxHtmlContainerCell *p, *op;
         op = p = GetParent();

-        while (p) {
+        while (p) 
+           {

             op = p;
             p = p->GetParent();
         }
         p = op;
         wxHtmlCell *cell = (wxHtmlCell*)p->Find( wxHTML_COND_ISIMAGEMAP, (const void*)(&m_MapName));
             op = p;
             p = p->GetParent();
         }
         p = op;
         wxHtmlCell *cell = (wxHtmlCell*)p->Find( wxHTML_COND_ISIMAGEMAP, (const void*)(&m_MapName));

-        if (!cell) {
+        if (!cell) 
+           {

             ((wxString&)m_MapName).Clear();
             return wxHtmlCell::GetLink( x, y );
         }
             ((wxString&)m_MapName).Clear();
             return wxHtmlCell::GetLink( x, y );
         }

-        { // dirty hack, ask Joel why he fills m_ImageMap in this place
+        {   // dirty hack, ask Joel why he fills m_ImageMap in this place

             // THE problem is that we're in const method and we can't modify m_ImageMap
             wxHtmlImageMapCell **cx = (wxHtmlImageMapCell**)(&m_ImageMap);
             *cx = (wxHtmlImageMapCell*)cell;
             // THE problem is that we're in const method and we can't modify m_ImageMap
             wxHtmlImageMapCell **cx = (wxHtmlImageMapCell**)(&m_ImageMap);
             *cx = (wxHtmlImageMapCell*)cell;


@@ -347,46 +393,55 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
 
     TAG_HANDLER_PROC(tag)
     {
 
     TAG_HANDLER_PROC(tag)
     {

-        if (tag.GetName() == wxT("IMG")) {
-            if (tag.HasParam(wxT("SRC"))) {
+        if (tag.GetName() == wxT("IMG")) 
+           {
+            if (tag.HasParam(wxT("SRC"))) 
+               {

                 int w = -1, h = -1;
                 int al;
                 wxFSFile *str;
                 wxString tmp = tag.GetParam(wxT("SRC"));
                 wxString mn = wxEmptyString;
 
                 int w = -1, h = -1;
                 int al;
                 wxFSFile *str;
                 wxString tmp = tag.GetParam(wxT("SRC"));
                 wxString mn = wxEmptyString;
 

-                str = m_WParser -> GetFS() -> OpenFile(tmp);
-                if (tag.HasParam(wxT("WIDTH"))) tag.ScanParam(wxT("WIDTH"), wxT("%i"), &w);
-                if (tag.HasParam(wxT("HEIGHT"))) tag.ScanParam(wxT("HEIGHT"), wxT("%i"), &h);
+                str = m_WParser->GetFS()->OpenFile(tmp);
+                if (tag.HasParam(wxT("WIDTH"))) 
+                    tag.GetParamAsInt(wxT("WIDTH"), &w);
+                if (tag.HasParam(wxT("HEIGHT"))) 
+                    tag.GetParamAsInt(wxT("HEIGHT"), &h);

                 al = wxHTML_ALIGN_BOTTOM;
                 al = wxHTML_ALIGN_BOTTOM;

-                if (tag.HasParam(wxT("ALIGN"))) {
+                if (tag.HasParam(wxT("ALIGN"))) 
+                       {

                     wxString alstr = tag.GetParam(wxT("ALIGN"));
                     alstr.MakeUpper();  // for the case alignment was in ".."
                     wxString alstr = tag.GetParam(wxT("ALIGN"));
                     alstr.MakeUpper();  // for the case alignment was in ".."

-                    if (alstr == wxT("TEXTTOP")) al = wxHTML_ALIGN_TOP;
-                    else if ((alstr == wxT("CENTER")) || (alstr == wxT("ABSCENTER"))) al = wxHTML_ALIGN_CENTER;
+                    if (alstr == wxT("TEXTTOP")) 
+                        al = wxHTML_ALIGN_TOP;
+                    else if ((alstr == wxT("CENTER")) || (alstr == wxT("ABSCENTER"))) 
+                        al = wxHTML_ALIGN_CENTER;

                 }
                 }

-                if (tag.HasParam(wxT("USEMAP"))) {
+                if (tag.HasParam(wxT("USEMAP"))) 
+                       {

                     mn = tag.GetParam( wxT("USEMAP") );
                     mn = tag.GetParam( wxT("USEMAP") );

-                    if (mn[ (unsigned int) 0 ] == wxT('#')) {
+                    if (mn.GetChar(0) == wxT('#')) 
+                           {

                         mn = mn.Mid( 1 );
                     }
                 }
                 wxHtmlImageCell *cel = NULL;
                         mn = mn.Mid( 1 );
                     }
                 }
                 wxHtmlImageCell *cel = NULL;

-                if (str) {
-                   int neww = (w == -1) ? -1 : (int)(m_WParser -> GetPixelScale() * (double)w),
-                       newh = (h == -1) ? -1 : (int)(m_WParser -> GetPixelScale() * (double)h);
-                   
-                    cel = new wxHtmlImageCell(str, neww, newh, al, mn);
-                    cel -> SetLink(m_WParser -> GetLink());
-                    m_WParser -> GetContainer() -> InsertCell(cel);
+                if (str) 
+                       {
+                    cel = new wxHtmlImageCell(str, w, h, m_WParser->GetPixelScale(), al, mn);
+                    cel->SetLink(m_WParser->GetLink());
+                    m_WParser->GetContainer()->InsertCell(cel);

                     delete str;
                 }
             }
         }
                     delete str;
                 }
             }
         }

-        if (tag.GetName() == wxT("MAP")) {
+        if (tag.GetName() == wxT("MAP")) 
+           {

             m_WParser->CloseContainer();
             m_WParser->OpenContainer();
             m_WParser->CloseContainer();
             m_WParser->OpenContainer();

-            if (tag.HasParam(wxT("NAME"))) {
+            if (tag.HasParam(wxT("NAME"))) 
+               {

                 wxString tmp = tag.GetParam(wxT("NAME"));
                 wxHtmlImageMapCell *cel = new wxHtmlImageMapCell( tmp );
                 m_WParser->GetContainer()->InsertCell( cel );
                 wxString tmp = tag.GetParam(wxT("NAME"));
                 wxHtmlImageMapCell *cel = new wxHtmlImageMapCell( tmp );
                 m_WParser->GetContainer()->InsertCell( cel );


@@ -395,23 +450,32 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
             m_WParser->CloseContainer();
             m_WParser->OpenContainer();
         }
             m_WParser->CloseContainer();
             m_WParser->OpenContainer();
         }

-        if (tag.GetName() == wxT("AREA")) {
-            if (tag.HasParam(wxT("SHAPE"))) {
+        if (tag.GetName() == wxT("AREA")) 
+           {
+            if (tag.HasParam(wxT("SHAPE"))) 
+               {

                 wxString tmp = tag.GetParam(wxT("SHAPE"));
                 wxString coords = wxEmptyString;
                 tmp.MakeUpper();
                 wxHtmlImageMapAreaCell *cel = NULL;
                 wxString tmp = tag.GetParam(wxT("SHAPE"));
                 wxString coords = wxEmptyString;
                 tmp.MakeUpper();
                 wxHtmlImageMapAreaCell *cel = NULL;

-                if (tag.HasParam(wxT("COORDS"))) {
+                if (tag.HasParam(wxT("COORDS"))) 
+                       {

                     coords = tag.GetParam(wxT("COORDS"));
                 }
                     coords = tag.GetParam(wxT("COORDS"));
                 }

-                if (tmp == wxT("POLY")) {
-                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::POLY, coords, m_WParser -> GetPixelScale() );
-                } else if (tmp == wxT("CIRCLE")) {
-                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::CIRCLE, coords, m_WParser -> GetPixelScale() );
-                } else if (tmp == wxT("RECT")) {
-                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::RECT, coords, m_WParser -> GetPixelScale() );
+                if (tmp == wxT("POLY")) 
+                       {
+                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::POLY, coords, m_WParser->GetPixelScale() );
+                } 
+                       else if (tmp == wxT("CIRCLE")) 
+                       {
+                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::CIRCLE, coords, m_WParser->GetPixelScale() );
+                } 
+                       else if (tmp == wxT("RECT")) 
+                           {
+                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::RECT, coords, m_WParser->GetPixelScale() );

                 }
                 }

-                if (cel != NULL && tag.HasParam(wxT("HREF"))) {
+                if (cel != NULL && tag.HasParam(wxT("HREF"))) 
+                       {

                     wxString tmp = tag.GetParam(wxT("HREF"));
                     wxString target = wxEmptyString;
                     if (tag.HasParam(wxT("TARGET"))) target = tag.GetParam(wxT("TARGET"));
                     wxString tmp = tag.GetParam(wxT("HREF"));
                     wxString target = wxEmptyString;
                     if (tag.HasParam(wxT("TARGET"))) target = tag.GetParam(wxT("TARGET"));