Changed WidthDefault() and HeightDefault() to use 400,250. If there

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

diff --git a/src/html/m_image.cpp b/src/html/m_image.cpp
index 494accba1fd4d8399a9bb49b20f4ae38e417e18c..58aaa45e230843edf0f497a9724abc95a9300f8c 100644 (file)
--- a/src/html/m_image.cpp
+++ b/src/html/m_image.cpp
@@ -7,7 +7,7 @@
 // Licence:     wxWindows Licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows Licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation
 #endif
 
 #pragma implementation
 #endif
 


@@ -16,19 +16,26 @@
 #include "wx/defs.h"
 #if wxUSE_HTML && wxUSE_STREAMS
 
 #include "wx/defs.h"
 #if wxUSE_HTML && wxUSE_STREAMS
 

-#ifdef __BORDLANDC__
+#ifdef __BORLANDC__

 #pragma hdrstop
 #endif
 
 #ifndef WXPRECOMP
     #include "wx/dc.h"
 #pragma hdrstop
 #endif
 
 #ifndef WXPRECOMP
     #include "wx/dc.h"

+    #include "wx/scrolwin.h"
+    #include "wx/timer.h"
+    #include "wx/dcmemory.h"

 #endif
 
 #include "wx/html/forcelnk.h"
 #include "wx/html/m_templ.h"
 #endif
 
 #include "wx/html/forcelnk.h"
 #include "wx/html/m_templ.h"

+#include "wx/html/htmlwin.h"

 
 #include "wx/image.h"
 
 #include "wx/image.h"

+#include "wx/gifdecod.h"

 #include "wx/dynarray.h"
 #include "wx/dynarray.h"

+#include "wx/log.h"
+#include "wx/artprov.h"

 
 #include <math.h>
 #include <float.h>
 
 #include <math.h>
 #include <float.h>


@@ -43,11 +50,11 @@ WX_DECLARE_OBJARRAY(int, CoordArray);
 WX_DEFINE_OBJARRAY(CoordArray);
 
 
 WX_DEFINE_OBJARRAY(CoordArray);
 
 

-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------

 // wxHtmlImageMapAreaCell
 // wxHtmlImageMapAreaCell

-//                  0-width, 0-height cell that represents single area in imagemap
-//                  (it's GetLink is called from wxHtmlImageCell's)
-//--------------------------------------------------------------------------------
+//                  0-width, 0-height cell that represents single area in
+//                  imagemap (it's GetLink is called from wxHtmlImageCell's)
+// ---------------------------------------------------------------------------

 
 class wxHtmlImageMapAreaCell : public wxHtmlCell
 {
 
 class wxHtmlImageMapAreaCell : public wxHtmlCell
 {


@@ -60,6 +67,13 @@ class wxHtmlImageMapAreaCell : public wxHtmlCell
     public:
         wxHtmlImageMapAreaCell( celltype t, wxString &coords, double pixel_scale = 1.0);
         virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
     public:
         wxHtmlImageMapAreaCell( celltype t, wxString &coords, double pixel_scale = 1.0);
         virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;

+        void Draw(wxDC& WXUNUSED(dc),
+                  int WXUNUSED(x), int WXUNUSED(y),
+                  int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+                  wxHtmlRenderingInfo& WXUNUSED(info)) {}
+
+
+    DECLARE_NO_COPY_CLASS(wxHtmlImageMapAreaCell)

 };
 
 
 };
 
 


@@ -232,6 +246,12 @@ class wxHtmlImageMapCell : public wxHtmlCell
     public:
         virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
         virtual const wxHtmlCell *Find( int cond, const void *param ) const;
     public:
         virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
         virtual const wxHtmlCell *Find( int cond, const void *param ) const;

+        void Draw(wxDC& WXUNUSED(dc),
+                  int WXUNUSED(x), int WXUNUSED(y),
+                  int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+                  wxHtmlRenderingInfo& WXUNUSED(info)) {}
+
+    DECLARE_NO_COPY_CLASS(wxHtmlImageMapCell)

 };
 
 
 };
 
 


@@ -269,53 +289,151 @@ const wxHtmlCell *wxHtmlImageMapCell::Find( int cond, const void *param ) const
 
 class wxHtmlImageCell : public wxHtmlCell
 {
 
 class wxHtmlImageCell : public wxHtmlCell
 {

-    public:
-        wxBitmap *m_Image;
-        double m_Scale;
-        wxHtmlImageMapCell *m_ImageMap;
-        wxString m_MapName;
-
-        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;
+public:
+    wxHtmlImageCell(wxWindow *window,
+                    wxFSFile *input, int w = -1, int h = -1,
+                    double scale = 1.0, int align = wxHTML_ALIGN_BOTTOM,
+                    const wxString& mapname = wxEmptyString);
+    ~wxHtmlImageCell();
+    void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
+              wxHtmlRenderingInfo& info);
+    virtual wxHtmlLinkInfo *GetLink(int x = 0, int y = 0) const;
+
+    void SetImage(const wxImage& img);
+#if wxUSE_GIF && wxUSE_TIMER
+    void AdvanceAnimation(wxTimer *timer);
+    virtual void Layout(int w);
+#endif
+
+private:
+    wxBitmap           *m_bitmap;
+    int                 m_bmpW, m_bmpH;
+    bool                m_showFrame:1;
+    wxScrolledWindow   *m_window;
+#if wxUSE_GIF && wxUSE_TIMER
+    wxGIFDecoder       *m_gifDecoder;
+    wxTimer            *m_gifTimer;
+    int                 m_physX, m_physY;
+#endif
+    double              m_scale;
+    wxHtmlImageMapCell *m_imageMap;
+    wxString            m_mapName;
+
+    DECLARE_NO_COPY_CLASS(wxHtmlImageCell)

 };
 
 };
 

+#if wxUSE_GIF && wxUSE_TIMER
+class wxGIFTimer : public wxTimer
+{
+    public:
+        wxGIFTimer(wxHtmlImageCell *cell) : m_cell(cell) {}
+        virtual void Notify()
+        {
+            m_cell->AdvanceAnimation(this);
+        }

 
 

+    private:
+        wxHtmlImageCell *m_cell;

 
 

+    DECLARE_NO_COPY_CLASS(wxGIFTimer)
+};
+#endif

 
 

-//--------------------------------------------------------------------------------
+
+//----------------------------------------------------------------------------

 // wxHtmlImageCell
 // wxHtmlImageCell

-//--------------------------------------------------------------------------------
+//----------------------------------------------------------------------------
+

 
 

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

 {
 {

-    wxImage *img;
-    int ww, hh, bw, bh;
-    wxInputStream *s = input->GetStream();
-
-    m_Scale = scale;
-    img = new wxImage(*s, wxBITMAP_TYPE_ANY);
-    m_Image = NULL;
-    if (img && (img->Ok()))
+    m_window = window ? wxStaticCast(window, wxScrolledWindow) : NULL;
+    m_scale = scale;
+    m_showFrame = FALSE;
+    m_bitmap = NULL;
+    m_bmpW = w;
+    m_bmpH = h;
+    m_imageMap = NULL;
+    m_mapName = mapname;
+    SetCanLiveOnPagebreak(FALSE);
+#if wxUSE_GIF && wxUSE_TIMER
+    m_gifDecoder = NULL;
+    m_gifTimer = NULL;
+    m_physX = m_physY = -1;
+#endif
+
+    if ( m_bmpW && m_bmpH )

     {
     {

-        ww = img->GetWidth();
-        hh = img->GetHeight();
-        if (w != -1) bw = w; else bw = ww;
-        if (h != -1) bh = h; else bh = hh;
+        if ( input )
+        {
+            wxInputStream *s = input->GetStream();
+
+            if ( s )
+            {
+                bool readImg = TRUE;
+
+#if wxUSE_GIF && wxUSE_TIMER
+                if ( (input->GetLocation().Matches(wxT("*.gif")) ||
+                      input->GetLocation().Matches(wxT("*.GIF"))) && m_window )
+                {
+                    m_gifDecoder = new wxGIFDecoder(s, TRUE);
+                    if ( m_gifDecoder->ReadGIF() == wxGIF_OK )
+                    {
+                        wxImage img;
+                        if ( m_gifDecoder->ConvertToImage(&img) )
+                            SetImage(img);

 
 

-        m_Width = (int)(scale * (double)bw);
-        m_Height = (int)(scale * (double)bh);
+                        readImg = FALSE;

 
 

-        if ((bw != ww) || (bh != hh))
+                        if ( m_gifDecoder->IsAnimation() )
+                        {
+                            m_gifTimer = new wxGIFTimer(this);
+                            m_gifTimer->Start(m_gifDecoder->GetDelay(), TRUE);
+                        }
+                        else
+                        {
+                            wxDELETE(m_gifDecoder);
+                        }
+                    }
+                    else
+                    {
+                        wxDELETE(m_gifDecoder);
+                    }
+                }
+
+                if ( readImg )
+#endif // wxUSE_GIF && wxUSE_TIMER
+                {
+                    wxImage image(*s, wxBITMAP_TYPE_ANY);
+                    if ( image.Ok() )
+                        SetImage(image);
+                }
+            }
+        }
+        else // input==NULL, use "broken image" bitmap

         {
         {

-            wxImage img2 = img->Scale(bw, bh);
-            m_Image = new wxBitmap(img2.ConvertToBitmap());
+            if ( m_bmpW == -1 && m_bmpH == -1 )
+            {
+                m_bmpW = 29;
+                m_bmpH = 31;
+            }
+            else
+            {
+                m_showFrame = TRUE;
+                if ( m_bmpW == -1 ) m_bmpW = 31;
+                if ( m_bmpH == -1 ) m_bmpH = 33;
+            }
+            m_bitmap = 
+                new wxBitmap(wxArtProvider::GetBitmap(wxART_MISSING_IMAGE));

         }
         }

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

     }
     }

+    //else: ignore the 0-sized images used sometimes on the Web pages
+
+    m_Width = (int)(scale * (double)m_bmpW);
+    m_Height = (int)(scale * (double)m_bmpH);
+

     switch (align)
     {
         case wxHTML_ALIGN_TOP :
     switch (align)
     {
         case wxHTML_ALIGN_TOP :


@@ -329,34 +447,134 @@ wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, double scale, in
             m_Descent = 0;
             break;
     }
             m_Descent = 0;
             break;
     }

+ }

 
 

-    m_ImageMap = NULL;
-    m_MapName = mapname;
-    SetCanLiveOnPagebreak(FALSE);
+void wxHtmlImageCell::SetImage(const wxImage& img)
+{
+    if ( img.Ok() )
+    {
+        delete m_bitmap;
+
+        int ww, hh;
+        ww = img.GetWidth();
+        hh = img.GetHeight();
+
+        if ( m_bmpW == -1 )
+            m_bmpW = ww;
+        if ( m_bmpH == -1 )
+            m_bmpH = hh;
+
+        // Only scale the bitmap at the rendering stage,
+        // so we don't lose quality twice
+/*
+        if ((m_bmpW != ww) || (m_bmpH != hh))
+        {
+            wxImage img2 = img.Scale(m_bmpW, m_bmpH);
+            m_bitmap = new wxBitmap(img2);
+        }
+        else
+*/
+            m_bitmap = new wxBitmap(img);
+    }

 }
 
 }
 

+#if wxUSE_GIF && wxUSE_TIMER
+void wxHtmlImageCell::AdvanceAnimation(wxTimer *timer)
+{
+    wxImage img;

 
 

+    m_gifDecoder->GoNextFrame(TRUE);

 
 

-void wxHtmlImageCell::Draw(wxDC& dc, int x, int y, int WXUNUSED(view_y1), int WXUNUSED(view_y2))
+    if ( m_physX == -1 )
+    {
+        m_physX = m_physY = 0;
+        for (wxHtmlCell *cell = this; cell; cell = cell->GetParent())
+        {
+            m_physX += cell->GetPosX();
+            m_physY += cell->GetPosY();
+        }
+    }
+
+    int x, y;
+    m_window->CalcScrolledPosition(m_physX, m_physY, &x, &y);
+    wxRect rect(x, y, m_Width, m_Height);
+
+    if ( m_window->GetClientRect().Intersects(rect) &&
+         m_gifDecoder->ConvertToImage(&img) )
+    {
+        if ( (int)m_gifDecoder->GetWidth() != m_Width ||
+             (int)m_gifDecoder->GetHeight() != m_Height ||
+             m_gifDecoder->GetLeft() != 0 || m_gifDecoder->GetTop() != 0 )
+        {
+            wxBitmap bmp(img);
+            wxMemoryDC dc;
+            dc.SelectObject(*m_bitmap);
+            dc.DrawBitmap(bmp, m_gifDecoder->GetLeft(), m_gifDecoder->GetTop(),
+                          TRUE /* use mask */);
+        }
+        else
+            SetImage(img);
+        m_window->Refresh(img.HasMask(), &rect);
+    }
+
+    timer->Start(m_gifDecoder->GetDelay(), TRUE);
+}
+
+void wxHtmlImageCell::Layout(int w)
+{
+    wxHtmlCell::Layout(w);
+    m_physX = m_physY = -1;
+}
+
+#endif
+
+wxHtmlImageCell::~wxHtmlImageCell()
+{
+    delete m_bitmap;
+#if wxUSE_GIF && wxUSE_TIMER
+    delete m_gifTimer;
+    delete m_gifDecoder;
+#endif
+}
+
+
+void wxHtmlImageCell::Draw(wxDC& dc, int x, int y,
+                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+                           wxHtmlRenderingInfo& WXUNUSED(info))

 {
 {

-    if (m_Image)
+    if ( m_showFrame )

     {
     {

+        dc.SetBrush(*wxTRANSPARENT_BRUSH);
+        dc.SetPen(*wxBLACK_PEN);
+        dc.DrawRectangle(x + m_PosX, y + m_PosY, m_Width, m_Height);
+        x++, y++;
+    }
+    if ( m_bitmap )
+    {
+        // We add in the scaling from the desired bitmap width
+        // and height, so we only do the scaling once.
+        double imageScaleX = 1.0;
+        double imageScaleY = 1.0;
+        if (m_bmpW != m_bitmap->GetWidth())
+            imageScaleX = (double) m_bmpW / (double) m_bitmap->GetWidth();
+        if (m_bmpH != m_bitmap->GetHeight())
+            imageScaleY = (double) m_bmpH / (double) m_bitmap->GetHeight();
+        

         double us_x, us_y;
         dc.GetUserScale(&us_x, &us_y);
         double us_x, us_y;
         dc.GetUserScale(&us_x, &us_y);

-        dc.SetUserScale(us_x * m_Scale, us_y * m_Scale);
+        dc.SetUserScale(us_x * m_scale * imageScaleX, us_y * m_scale * imageScaleY);

 
 

-//      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.DrawBitmap(*m_bitmap, (int) ((x + m_PosX) / (m_scale*imageScaleX)),
+                                 (int) ((y + m_PosY) / (m_scale*imageScaleY)), TRUE);

         dc.SetUserScale(us_x, us_y);
     }
 }
 
 wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
 {
         dc.SetUserScale(us_x, us_y);
     }
 }
 
 wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
 {

-    if (m_MapName.IsEmpty())
+    if (m_mapName.IsEmpty())

         return wxHtmlCell::GetLink( x, y );
         return wxHtmlCell::GetLink( x, y );

-    if (!m_ImageMap)
+    if (!m_imageMap)

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


@@ -366,19 +584,20 @@ wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
             p = p->GetParent();
         }
         p = op;
             p = p->GetParent();
         }
         p = op;

-        wxHtmlCell *cell = (wxHtmlCell*)p->Find( wxHTML_COND_ISIMAGEMAP, (const void*)(&m_MapName));
+        wxHtmlCell *cell = (wxHtmlCell*)p->Find(wxHTML_COND_ISIMAGEMAP,
+                                                (const void*)(&m_mapName));

         if (!cell)
         {
         if (!cell)
         {

-            ((wxString&)m_MapName).Clear();
+            ((wxString&)m_mapName).Clear();

             return wxHtmlCell::GetLink( x, y );
         }
         {   // 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
             return wxHtmlCell::GetLink( x, y );
         }
         {   // 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);
+            wxHtmlImageMapCell **cx = (wxHtmlImageMapCell**)(&m_imageMap);

             *cx = (wxHtmlImageMapCell*)cell;
         }
     }
             *cx = (wxHtmlImageMapCell*)cell;
         }
     }

-    return m_ImageMap->GetLink( x, y );
+    return m_imageMap->GetLink(x, y);

 }
 
 
 }
 
 


@@ -388,6 +607,7 @@ wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
 //--------------------------------------------------------------------------------
 
 TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
 //--------------------------------------------------------------------------------
 
 TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")

+    TAG_HANDLER_CONSTR(IMG) { }

 
     TAG_HANDLER_PROC(tag)
     {
 
     TAG_HANDLER_PROC(tag)
     {


@@ -401,7 +621,8 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
                 wxString tmp = tag.GetParam(wxT("SRC"));
                 wxString mn = wxEmptyString;
 
                 wxString tmp = tag.GetParam(wxT("SRC"));
                 wxString mn = wxEmptyString;
 

-                str = m_WParser->GetFS()->OpenFile(tmp);
+                str = m_WParser->OpenURL(wxHTML_URL_IMAGE, tmp);
+

                 if (tag.HasParam(wxT("WIDTH")))
                     tag.GetParamAsInt(wxT("WIDTH"), &w);
                 if (tag.HasParam(wxT("HEIGHT")))
                 if (tag.HasParam(wxT("WIDTH")))
                     tag.GetParamAsInt(wxT("WIDTH"), &w);
                 if (tag.HasParam(wxT("HEIGHT")))


@@ -424,15 +645,16 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
                         mn = mn.Mid( 1 );
                     }
                 }
                         mn = mn.Mid( 1 );
                     }
                 }

-                wxHtmlImageCell *cel = NULL;
+                wxHtmlImageCell *cel = new wxHtmlImageCell(
+                                          m_WParser->GetWindow(),
+                                          str, w, h,
+                                          m_WParser->GetPixelScale(),
+                                          al, mn);
+                cel->SetLink(m_WParser->GetLink());
+                cel->SetId(tag.GetParam(wxT("id"))); // may be empty
+                m_WParser->GetContainer()->InsertCell(cel);

                 if (str)
                 if (str)

-                {
-                    cel = new wxHtmlImageCell(str, w, h, m_WParser->GetPixelScale(), al, mn);
-                    cel->SetLink(m_WParser->GetLink());
-                    cel->SetId(tag.GetParam(wxT("id"))); // may be empty
-                    m_WParser->GetContainer()->InsertCell(cel);

                     delete str;
                     delete str;

-                }

             }
         }
         if (tag.GetName() == wxT("MAP"))
             }
         }
         if (tag.GetName() == wxT("MAP"))