X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/50da928bbd828c7b23c20877cdb08722e5eff01c..1b14412585d582acde42d422c8cd5d23d4daef14:/src/html/m_image.cpp diff --git a/src/html/m_image.cpp b/src/html/m_image.cpp index 494accba1f..fd4ff24855 100644 --- a/src/html/m_image.cpp +++ b/src/html/m_image.cpp @@ -4,10 +4,10 @@ // Author: Vaclav Slavik // RCS-ID: $Id$ // Copyright: (c) 1999 Vaclav Slavik, Joel Lucsy -// Licence: wxWindows Licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation #endif @@ -16,21 +16,28 @@ #include "wx/defs.h" #if wxUSE_HTML && wxUSE_STREAMS -#ifdef __BORDLANDC__ +#ifdef __BORLANDC__ #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" +#include "wx/html/htmlwin.h" #include "wx/image.h" +#include "wx/gifdecod.h" #include "wx/dynarray.h" +#include "wx/log.h" +#include "wx/artprov.h" +#include "wx/math.h" -#include #include FORCE_LINK_ME(m_image) @@ -43,11 +50,11 @@ WX_DECLARE_OBJARRAY(int, CoordArray); WX_DEFINE_OBJARRAY(CoordArray); -//-------------------------------------------------------------------------------- +// --------------------------------------------------------------------------- // 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 { @@ -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; + 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) }; @@ -72,7 +86,7 @@ wxHtmlImageMapAreaCell::wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::celltype wxString x = incoords, y; type = t; - while ((i = x.Find( ',' )) != -1) + while ((i = x.Find( ',' )) != wxNOT_FOUND) { coords.Add( (int)(pixel_scale * (double)wxAtoi( x.Left( i ).c_str())) ); x = x.Mid( i + 1 ); @@ -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; + 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 { - 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 = wxDefaultCoord, int h = wxDefaultCoord, + 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(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 = wxDefaultCoord; +#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 ( m_gifDecoder->IsAnimation() ) + { + m_gifTimer = new wxGIFTimer(this); + m_gifTimer->Start(m_gifDecoder->GetDelay(), true); + } + else + { + wxDELETE(m_gifDecoder); + } + } + else + { + wxDELETE(m_gifDecoder); + } + } - if ((bw != ww) || (bh != hh)) + 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 == wxDefaultCoord && m_bmpH == wxDefaultCoord ) + { + m_bmpW = 29; + m_bmpH = 31; + } + else + { + m_showFrame = true; + if ( m_bmpW == wxDefaultCoord ) m_bmpW = 31; + if ( m_bmpH == wxDefaultCoord ) 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 : @@ -329,34 +447,134 @@ wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, double scale, in m_Descent = 0; break; } + } + +void wxHtmlImageCell::SetImage(const wxImage& img) +{ + if ( img.Ok() ) + { + delete m_bitmap; + + int ww, hh; + ww = img.GetWidth(); + hh = img.GetHeight(); - m_ImageMap = NULL; - m_MapName = mapname; - SetCanLiveOnPagebreak(FALSE); + if ( m_bmpW == wxDefaultCoord ) + m_bmpW = ww; + if ( m_bmpH == wxDefaultCoord ) + 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 == wxDefaultCoord ) + { + 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 = wxDefaultCoord; +} + +#endif + +wxHtmlImageCell::~wxHtmlImageCell() { - if (m_Image) + 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_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); - 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 { - if (m_MapName.IsEmpty()) + if (m_mapName.empty()) return wxHtmlCell::GetLink( x, y ); - if (!m_ImageMap) + if (!m_imageMap) { wxHtmlContainerCell *p, *op; op = p = GetParent(); @@ -366,19 +584,20 @@ wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const 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) { - ((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 - wxHtmlImageMapCell **cx = (wxHtmlImageMapCell**)(&m_ImageMap); + wxHtmlImageMapCell **cx = (wxHtmlImageMapCell**)(&m_imageMap); *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_CONSTR(IMG) { } TAG_HANDLER_PROC(tag) { @@ -395,13 +615,14 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA") { if (tag.HasParam(wxT("SRC"))) { - int w = -1, h = -1; + int w = wxDefaultCoord, h = wxDefaultCoord; int al; wxFSFile *str; 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"))) @@ -424,15 +645,16 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA") 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) - { - 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; - } } } if (tag.GetName() == wxT("MAP")) @@ -484,7 +706,7 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA") } } - return FALSE; + return false; } TAG_HANDLER_END(IMG)