X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/04dbb6467be8f564f380bd9a1106fbdecbd26a98..64ea838d8f4d1853b7d850db93ee565e901d099a:/src/html/m_image.cpp?ds=sidebyside diff --git a/src/html/m_image.cpp b/src/html/m_image.cpp index 85e8f274d7..87aa320f80 100644 --- a/src/html/m_image.cpp +++ b/src/html/m_image.cpp @@ -1,36 +1,39 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: m_image.cpp +// Name: src/html/m_image.cpp // Purpose: wxHtml module for displaying images // Author: Vaclav Slavik // RCS-ID: $Id$ // Copyright: (c) 1999 Vaclav Slavik, Joel Lucsy -// Licence: wxWindows Licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation -#endif - #include "wx/wxprec.h" -#include "wx/defs.h" -#if wxUSE_HTML && wxUSE_STREAMS - -#ifdef __BORDLANDC__ -#pragma hdrstop +#ifdef __BORLANDC__ + #pragma hdrstop #endif -#ifndef WXPRECOMP +#if wxUSE_HTML && wxUSE_STREAMS + +#ifndef WX_PRECOMP + #include "wx/dynarray.h" #include "wx/dc.h" + #include "wx/scrolwin.h" + #include "wx/timer.h" + #include "wx/dcmemory.h" + #include "wx/log.h" + #include "wx/math.h" + #include "wx/image.h" + #include "wx/wxcrtvararg.h" #endif #include "wx/html/forcelnk.h" #include "wx/html/m_templ.h" +#include "wx/html/htmlwin.h" -#include "wx/image.h" -#include "wx/dynarray.h" +#include "wx/gifdecod.h" +#include "wx/artprov.h" -#include #include FORCE_LINK_ME(m_image) @@ -40,14 +43,14 @@ FORCE_LINK_ME(m_image) WX_DECLARE_OBJARRAY(int, CoordArray); #include "wx/arrimpl.cpp" // this is a magic incantation which must be done! -WX_DEFINE_OBJARRAY(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 +63,13 @@ 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)) {} + + + wxDECLARE_NO_COPY_CLASS(wxHtmlImageMapAreaCell); }; @@ -72,7 +82,7 @@ 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 +242,12 @@ 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)) {} + + wxDECLARE_NO_COPY_CLASS(wxHtmlImageMapCell); }; @@ -269,54 +285,279 @@ 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(wxHtmlWindowInterface *windowIface, + wxFSFile *input, + int w = wxDefaultCoord, bool wpercent = false, + int h = wxDefaultCoord, bool hpresent = false, + double scale = 1.0, int align = wxHTML_ALIGN_BOTTOM, + const wxString& mapname = wxEmptyString); + virtual ~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 "alt" text is set, it will be used when converting this cell to text. + void SetAlt(const wxString& alt); + virtual wxString ConvertToText(wxHtmlSelection *sel) const; + +#if wxUSE_GIF && wxUSE_TIMER + void AdvanceAnimation(wxTimer *timer); + virtual void Layout(int w); +#endif + +private: + wxBitmap *m_bitmap; + int m_align; + int m_bmpW, m_bmpH; + bool m_bmpWpercent:1; + bool m_bmpHpresent:1; + bool m_showFrame:1; + wxHtmlWindowInterface *m_windowIface; +#if wxUSE_GIF && wxUSE_TIMER + wxGIFDecoder *m_gifDecoder; + wxTimer *m_gifTimer; + int m_physX, m_physY; + size_t m_nCurrFrame; +#endif + double m_scale; + wxHtmlImageMapCell *m_imageMap; + wxString m_mapName; + wxString m_alt; + + wxDECLARE_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; + wxDECLARE_NO_COPY_CLASS(wxGIFTimer); +}; +#endif -//-------------------------------------------------------------------------------- +//---------------------------------------------------------------------------- // wxHtmlImageCell -//-------------------------------------------------------------------------------- +//---------------------------------------------------------------------------- + + +wxHtmlImageCell::wxHtmlImageCell(wxHtmlWindowInterface *windowIface, + wxFSFile *input, + int w, bool wpercent, int h, bool hpresent, double scale, int align, + const wxString& mapname) : wxHtmlCell() +{ + m_windowIface = windowIface; + m_scale = scale; + m_showFrame = false; + m_bitmap = NULL; + m_bmpW = w; + m_bmpH = h; + m_align = align; + m_bmpWpercent = wpercent; + m_bmpHpresent = hpresent; + m_imageMap = NULL; + m_mapName = mapname; + SetCanLiveOnPagebreak(false); +#if wxUSE_GIF && wxUSE_TIMER + m_gifDecoder = NULL; + m_gifTimer = NULL; + m_physX = m_physY = wxDefaultCoord; + m_nCurrFrame = 0; +#endif + + if ( m_bmpW && m_bmpH ) + { + if ( input ) + { + wxInputStream *s = input->GetStream(); + + if ( s ) + { +#if wxUSE_GIF && wxUSE_TIMER + bool readImg = true; + if ( m_windowIface && + (input->GetLocation().Matches(wxT("*.gif")) || + input->GetLocation().Matches(wxT("*.GIF"))) ) + { + m_gifDecoder = new wxGIFDecoder(); + if ( m_gifDecoder->LoadGIF(*s) == wxGIF_OK ) + { + wxImage img; + if ( m_gifDecoder->ConvertToImage(0, &img) ) + SetImage(img); + + readImg = false; + + if ( m_gifDecoder->IsAnimation() ) + { + m_gifTimer = new wxGIFTimer(this); + long delay = m_gifDecoder->GetDelay(0); + if ( delay == 0 ) + delay = 1; + m_gifTimer->Start(delay, true); + } + else + { + wxDELETE(m_gifDecoder); + } + } + else + { + wxDELETE(m_gifDecoder); + } + } + + if ( readImg ) +#endif // wxUSE_GIF && wxUSE_TIMER + { + wxImage image(*s, wxBITMAP_TYPE_ANY); + if ( image.IsOk() ) + SetImage(image); + } + } + } + else // input==NULL, use "broken image" bitmap + { + 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: ignore the 0-sized images used sometimes on the Web pages -wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, double scale, int align, wxString mapname) : wxHtmlCell() + } + +void wxHtmlImageCell::SetImage(const wxImage& img) { - 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())) +#if !defined(__WXMSW__) || wxUSE_WXDIB + if ( img.IsOk() ) { - ww = img->GetWidth(); - hh = img->GetHeight(); - if (w != -1) bw = w; else bw = ww; - if (h != -1) bh = h; else bh = hh; + delete m_bitmap; + + int ww, hh; + ww = img.GetWidth(); + hh = img.GetHeight(); - m_Width = (int)(scale * (double)bw); - m_Height = (int)(scale * (double)bh); + if ( m_bmpW == wxDefaultCoord) + m_bmpW = ww; + if ( m_bmpH == wxDefaultCoord) + m_bmpH = hh; - if ((bw != ww) || (bh != 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(bw, bh); - m_Image = new wxBitmap(img2.ConvertToBitmap()); + wxImage img2 = img.Scale(m_bmpW, m_bmpH); + m_bitmap = new wxBitmap(img2); } else - m_Image = new wxBitmap(img->ConvertToBitmap()); - delete img; +*/ + m_bitmap = new wxBitmap(img); + } +#endif +} + +void wxHtmlImageCell::SetAlt(const wxString& alt) +{ + m_alt = alt; +} + +wxString wxHtmlImageCell::ConvertToText(wxHtmlSelection* WXUNUSED(sel)) const +{ + return m_alt; +} + +#if wxUSE_GIF && wxUSE_TIMER +void wxHtmlImageCell::AdvanceAnimation(wxTimer *timer) +{ + wxImage img; + + // advance current frame + m_nCurrFrame++; + if (m_nCurrFrame == m_gifDecoder->GetFrameCount()) + m_nCurrFrame = 0; + + 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(); + } + } + + wxWindow *win = m_windowIface->GetHTMLWindow(); + wxPoint pos = + m_windowIface->HTMLCoordsToWindow(this, wxPoint(m_physX, m_physY)); + wxRect rect(pos, wxSize(m_Width, m_Height)); + + if ( win->GetClientRect().Intersects(rect) && + m_gifDecoder->ConvertToImage(m_nCurrFrame, &img) ) + { +#if !defined(__WXMSW__) || wxUSE_WXDIB + if ( m_gifDecoder->GetFrameSize(m_nCurrFrame) != wxSize(m_Width, m_Height) || + m_gifDecoder->GetFramePosition(m_nCurrFrame) != wxPoint(0, 0) ) + { + wxBitmap bmp(img); + wxMemoryDC dc; + dc.SelectObject(*m_bitmap); + dc.DrawBitmap(bmp, m_gifDecoder->GetFramePosition(m_nCurrFrame), + true /* use mask */); + } + else +#endif + SetImage(img); + win->Refresh(img.HasMask(), &rect); + } + + long delay = m_gifDecoder->GetDelay(m_nCurrFrame); + if ( delay == 0 ) + delay = 1; + timer->Start(delay, true); +} + +void wxHtmlImageCell::Layout(int w) +{ + if (m_bmpWpercent) + { + + m_Width = w*m_bmpW/100; + + if (!m_bmpHpresent && m_bitmap != NULL) + m_Height = m_bitmap->GetHeight()*m_Width/m_bitmap->GetWidth(); + else + m_Height = static_cast(m_scale*m_bmpH); + } else + { + m_Width = static_cast(m_scale*m_bmpW); + m_Height = static_cast(m_scale*m_bmpH); } - switch (align) + + switch (m_align) { case wxHTML_ALIGN_TOP : m_Descent = m_Height; @@ -330,34 +571,59 @@ wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, double scale, in break; } - m_ImageMap = NULL; - m_MapName = mapname; - SetCanLiveOnPagebreak(FALSE); + wxHtmlCell::Layout(w); + m_physX = m_physY = wxDefaultCoord; } +#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 view_y1, int view_y2) +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_Width != m_bitmap->GetWidth()) + imageScaleX = (double) m_Width / (double) m_bitmap->GetWidth(); + if (m_Height != m_bitmap->GetHeight()) + imageScaleY = (double) m_Height / (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 * imageScaleX, us_y * 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) / (imageScaleX)), + (int) ((y + m_PosY) / (imageScaleY)), true); dc.SetUserScale(us_x, us_y); } - wxHtmlCell::Draw(dc, x, y, view_y1, view_y2); } 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(); @@ -367,19 +633,20 @@ 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); } @@ -389,6 +656,7 @@ wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const //-------------------------------------------------------------------------------- TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA") + TAG_HANDLER_CONSTR(IMG) { } TAG_HANDLER_PROC(tag) { @@ -396,17 +664,36 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA") { if (tag.HasParam(wxT("SRC"))) { - int w = -1, h = -1; + int w = wxDefaultCoord, h = wxDefaultCoord; + bool wpercent = false; + bool hpresent = false; 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); + { + wxString param = tag.GetParam(wxT("WIDTH")); + wxSscanf(param.c_str(), wxT("%i"), &w); + if (param.EndsWith(wxT("%"))) { + if (w < 0) + w = 0; + else if (w > 100) + w = 100; + wpercent = true; + } + + } + if (tag.HasParam(wxT("HEIGHT"))) + { tag.GetParamAsInt(wxT("HEIGHT"), &h); + hpresent = true; + } + al = wxHTML_ALIGN_BOTTOM; if (tag.HasParam(wxT("ALIGN"))) { @@ -420,19 +707,23 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA") if (tag.HasParam(wxT("USEMAP"))) { mn = tag.GetParam( wxT("USEMAP") ); - if (mn.GetChar(0) == wxT('#')) + if ( !mn.empty() && *mn.begin() == '#' ) { mn = mn.Mid( 1 ); } } - wxHtmlImageCell *cel = NULL; + wxHtmlImageCell *cel = new wxHtmlImageCell( + m_WParser->GetWindowInterface(), + str, w, wpercent, h, hpresent, + m_WParser->GetPixelScale(), + al, mn); + m_WParser->ApplyStateToCell(cel); + m_WParser->StopCollapsingSpaces(); + cel->SetId(tag.GetParam(wxT("id"))); // may be empty + cel->SetAlt(tag.GetParam(wxT("alt"))); + 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; - } } } if (tag.GetName() == wxT("MAP")) @@ -475,16 +766,17 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA") } 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")); - cel->SetLink( wxHtmlLinkInfo(tmp, target)); + wxString target; + if (tag.HasParam(wxT("TARGET"))) + target = tag.GetParam(wxT("TARGET")); + cel->SetLink(wxHtmlLinkInfo(tag.GetParam(wxT("HREF")), target)); } - if (cel != NULL) m_WParser->GetContainer()->InsertCell( cel ); + if (cel != NULL) + m_WParser->GetContainer()->InsertCell( cel ); } } - return FALSE; + return false; } TAG_HANDLER_END(IMG)