/////////////////////////////////////////////////////////////////////////////
-// 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/gifdecod.h"
-#include "wx/dynarray.h"
+#include "wx/artprov.h"
-#include <math.h>
#include <float.h>
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
{
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);
};
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 );
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);
};
class wxHtmlImageCell : public wxHtmlCell
{
public:
- wxHtmlImageCell(wxWindow *window,
- wxFSFile *input, int w = -1, int h = -1,
- double scale = 1.0, int align = wxHTML_ALIGN_BOTTOM,
+ 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);
- ~wxHtmlImageCell();
- void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
+ 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);
private:
wxBitmap *m_bitmap;
+ int m_align;
int m_bmpW, m_bmpH;
- wxScrolledWindow *m_window;
+ 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
private:
wxHtmlImageCell *m_cell;
+
+ wxDECLARE_NO_COPY_CLASS(wxGIFTimer);
};
#endif
-//--------------------------------------------------------------------------------
+//----------------------------------------------------------------------------
// wxHtmlImageCell
-//--------------------------------------------------------------------------------
+//----------------------------------------------------------------------------
+
-wxHtmlImageCell::wxHtmlImageCell(wxWindow *window, wxFSFile *input,
- int w, int h, double scale, int align,
+wxHtmlImageCell::wxHtmlImageCell(wxHtmlWindowInterface *windowIface,
+ wxFSFile *input,
+ int w, bool wpercent, int h, bool hpresent, double scale, int align,
const wxString& mapname) : wxHtmlCell()
{
- m_window = wxStaticCast(window, wxScrolledWindow);
+ m_windowIface = windowIface;
m_scale = scale;
+ m_showFrame = false;
m_bitmap = NULL;
- m_bmpW = w;
- m_bmpH = h;
+ m_bmpW = w;
+ m_bmpH = h;
+ m_align = align;
+ m_bmpWpercent = wpercent;
+ m_bmpHpresent = hpresent;
m_imageMap = NULL;
m_mapName = mapname;
- SetCanLiveOnPagebreak(FALSE);
+ SetCanLiveOnPagebreak(false);
#if wxUSE_GIF && wxUSE_TIMER
m_gifDecoder = NULL;
m_gifTimer = NULL;
- m_physX = m_physY = -1;
+ m_physX = m_physY = wxDefaultCoord;
+ m_nCurrFrame = 0;
#endif
- wxInputStream *s = input->GetStream();
-
- if ( s )
+ if ( m_bmpW && m_bmpH )
{
- bool readImg = TRUE;
-
-#if wxUSE_GIF && wxUSE_TIMER
- if ( (input->GetLocation().Matches(wxT("*.gif")) ||
- input->GetLocation().Matches(wxT("*.GIF"))) && m_window )
+ if ( input )
{
- m_gifDecoder = new wxGIFDecoder(s, TRUE);
- if ( m_gifDecoder->ReadGIF() == wxGIF_OK )
+ wxInputStream *s = input->GetStream();
+
+ if ( s )
{
- wxImage img;
- if ( m_gifDecoder->ConvertToImage(&img) )
- SetImage(img);
+#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;
+ readImg = false;
- if ( m_gifDecoder->IsAnimation() )
- {
- m_gifTimer = new wxGIFTimer(this);
- m_gifTimer->Start(m_gifDecoder->GetDelay(), TRUE);
+ 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);
+ }
}
- else
+
+ if ( readImg )
+#endif // wxUSE_GIF && wxUSE_TIMER
{
- wxDELETE(m_gifDecoder);
+ 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
{
- wxDELETE(m_gifDecoder);
+ m_showFrame = true;
+ if ( m_bmpW == wxDefaultCoord ) m_bmpW = 31;
+ if ( m_bmpH == wxDefaultCoord ) m_bmpH = 33;
}
- }
-
- if ( readImg )
-#endif
- {
- SetImage(wxImage(*s, wxBITMAP_TYPE_ANY));
+ m_bitmap =
+ new wxBitmap(wxArtProvider::GetBitmap(wxART_MISSING_IMAGE));
}
}
+ //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 :
- m_Descent = m_Height;
- break;
- case wxHTML_ALIGN_CENTER :
- m_Descent = m_Height / 2;
- break;
- case wxHTML_ALIGN_BOTTOM :
- default :
- m_Descent = 0;
- break;
- }
}
void wxHtmlImageCell::SetImage(const wxImage& img)
{
- if ( img.Ok() )
+#if !defined(__WXMSW__) || wxUSE_WXDIB
+ if ( img.IsOk() )
{
delete m_bitmap;
ww = img.GetWidth();
hh = img.GetHeight();
- if ( m_bmpW == -1 )
+ if ( m_bmpW == wxDefaultCoord)
m_bmpW = ww;
- if ( m_bmpH == -1 )
+ 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);
}
+#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
{
wxImage img;
- m_gifDecoder->GoNextFrame(TRUE);
+ // advance current frame
+ m_nCurrFrame++;
+ if (m_nCurrFrame == m_gifDecoder->GetFrameCount())
+ m_nCurrFrame = 0;
- if ( m_physX == -1 )
+ if ( m_physX == wxDefaultCoord )
{
m_physX = m_physY = 0;
for (wxHtmlCell *cell = this; cell; cell = cell->GetParent())
}
}
- int x, y;
- m_window->CalcScrolledPosition(m_physX, m_physY, &x, &y);
- wxRect rect(x, y, m_Width, m_Height);
+ 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 ( m_window->GetClientRect().Intersects(rect) &&
- m_gifDecoder->ConvertToImage(&img) )
+ if ( win->GetClientRect().Intersects(rect) &&
+ m_gifDecoder->ConvertToImage(m_nCurrFrame, &img) )
{
- if ( (int)m_gifDecoder->GetWidth() != m_Width ||
- (int)m_gifDecoder->GetHeight() != m_Height ||
- m_gifDecoder->GetLeft() != 0 || m_gifDecoder->GetTop() != 0 )
+#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->GetLeft(), m_gifDecoder->GetTop());
+ dc.DrawBitmap(bmp, m_gifDecoder->GetFramePosition(m_nCurrFrame),
+ true /* use mask */);
}
else
+#endif
SetImage(img);
- m_window->Refresh(img.HasMask(), &rect);
+ win->Refresh(img.HasMask(), &rect);
}
- timer->Start(m_gifDecoder->GetDelay(), TRUE);
+ 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<int>(m_scale*m_bmpH);
+ } else
+ {
+ m_Width = static_cast<int>(m_scale*m_bmpW);
+ m_Height = static_cast<int>(m_scale*m_bmpH);
+ }
+
+ switch (m_align)
+ {
+ case wxHTML_ALIGN_TOP :
+ m_Descent = m_Height;
+ break;
+ case wxHTML_ALIGN_CENTER :
+ m_Descent = m_Height / 2;
+ break;
+ case wxHTML_ALIGN_BOTTOM :
+ default :
+ m_Descent = 0;
+ break;
+ }
+
wxHtmlCell::Layout(w);
- m_physX = m_physY = -1;
+ m_physX = m_physY = wxDefaultCoord;
}
#endif
}
-void wxHtmlImageCell::Draw(wxDC& dc, int x, int y, int WXUNUSED(view_y1), int WXUNUSED(view_y2))
+void wxHtmlImageCell::Draw(wxDC& dc, int x, int y,
+ int WXUNUSED(view_y1), int WXUNUSED(view_y2),
+ wxHtmlRenderingInfo& WXUNUSED(info))
{
- if (m_bitmap)
+ 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_bitmap, (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);
}
}
wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
{
- if (m_mapName.IsEmpty())
+ if (m_mapName.empty())
return wxHtmlCell::GetLink( x, y );
if (!m_imageMap)
{
p = p->GetParent();
}
p = op;
- wxHtmlCell *cell = (wxHtmlCell*)p->Find(wxHTML_COND_ISIMAGEMAP,
+ wxHtmlCell *cell = (wxHtmlCell*)p->Find(wxHTML_COND_ISIMAGEMAP,
(const void*)(&m_mapName));
if (!cell)
{
//--------------------------------------------------------------------------------
TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
+ TAG_HANDLER_CONSTR(IMG) { }
TAG_HANDLER_PROC(tag)
{
{
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);
+ {
+ if (tag.GetParamAsIntOrPercent(wxT("WIDTH"), &w, wpercent))
+ {
+ if (wpercent)
+ {
+ if (w < 0)
+ w = 0;
+ else if (w > 100)
+ w = 100;
+ }
+ }
+ }
+
if (tag.HasParam(wxT("HEIGHT")))
+ {
tag.GetParamAsInt(wxT("HEIGHT"), &h);
+ hpresent = true;
+ }
+
al = wxHTML_ALIGN_BOTTOM;
if (tag.HasParam(wxT("ALIGN")))
{
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(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);
delete str;
- }
}
}
if (tag.GetName() == wxT("MAP"))
}
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)
projects / wxWidgets.git / blobdiff