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Implemented @2 HiDPI images for wxHTML on Mac

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This commit is contained in:
JulianSmart
2017-05-13 16:10:43 +01:00
parent c07b14332b
commit 32355f7172
1 changed files with 40 additions and 16 deletions
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56
src/html/m_image.cpp
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@@ -287,7 +287,7 @@ class wxHtmlImageCell : public wxHtmlCell
{
public:
wxHtmlImageCell(wxHtmlWindowInterface *windowIface,
wxFSFile *input,
wxFSFile *input, double scaleHDPI = 1.0,
int w = wxDefaultCoord, bool wpercent = false,
int h = wxDefaultCoord, bool hpresent = false,
double scale = 1.0, int align = wxHTML_ALIGN_BOTTOM,
@@ -297,7 +297,7 @@ public:
wxHtmlRenderingInfo& info) wxOVERRIDE;
virtual wxHtmlLinkInfo *GetLink(int x = 0, int y = 0) const wxOVERRIDE;
void SetImage(const wxImage& img);
void SetImage(const wxImage& img, double scaleHDPI = 1.0);
// If "alt" text is set, it will be used when converting this cell to text.
void SetAlt(const wxString& alt);
@@ -355,7 +355,7 @@ class wxGIFTimer : public wxTimer
wxHtmlImageCell::wxHtmlImageCell(wxHtmlWindowInterface *windowIface,
wxFSFile *input,
wxFSFile *input, double scaleHDPI,
int w, bool wpercent, int h, bool hpresent, double scale, int align,
const wxString& mapname) : wxHtmlCell()
{
@@ -425,7 +425,7 @@ wxHtmlImageCell::wxHtmlImageCell(wxHtmlWindowInterface *windowIface,
{
wxImage image(*s, wxBITMAP_TYPE_ANY);
if ( image.IsOk() )
SetImage(image);
SetImage(image, scaleHDPI);
}
}
}
@@ -450,7 +450,7 @@ wxHtmlImageCell::wxHtmlImageCell(wxHtmlWindowInterface *windowIface,
}
void wxHtmlImageCell::SetImage(const wxImage& img)
void wxHtmlImageCell::SetImage(const wxImage& img, double scaleHDPI)
{
#if !defined(__WXMSW__) || wxUSE_WXDIB
if ( img.IsOk() )
@@ -462,11 +462,13 @@ void wxHtmlImageCell::SetImage(const wxImage& img)
hh = img.GetHeight();
if ( m_bmpW == wxDefaultCoord)
m_bmpW = ww;
m_bmpW = ww / scaleHDPI;
if ( m_bmpH == wxDefaultCoord)
m_bmpH = hh;
m_bmpH = hh / scaleHDPI;
m_bitmap = new wxBitmap(img);
// On a Mac retina screen, we might have found a @2 version of the image,
// so specify this scale factor.
m_bitmap = new wxBitmap(img, -1, scaleHDPI);
}
#endif
}
@@ -540,7 +542,7 @@ void wxHtmlImageCell::Layout(int w)
m_Width = w*m_bmpW/100;
if (!m_bmpHpresent && m_bitmap != NULL)
m_Height = m_bitmap->GetHeight()*m_Width/m_bitmap->GetWidth();
m_Height = m_bitmap->GetScaledHeight()*m_Width/m_bitmap->GetScaledWidth();
else
m_Height = static_cast<int>(m_scale*m_bmpH);
} else
@@ -617,10 +619,10 @@ void wxHtmlImageCell::Draw(wxDC& dc, int x, int y,
}
#endif
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();
if (m_Width != m_bitmap->GetScaledWidth())
imageScaleX = (double) m_Width / (double) m_bitmap->GetScaledWidth();
if (m_Height != m_bitmap->GetScaledHeight())
imageScaleY = (double) m_Height / (double) m_bitmap->GetScaledHeight();
double us_x, us_y;
dc.GetUserScale(&us_x, &us_y);
@@ -682,10 +684,32 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
bool wpercent = false;
bool hpresent = false;
int al;
wxFSFile *str;
wxFSFile *str = NULL;
wxString mn;
double scaleHDPI = 1.0;
str = m_WParser->OpenURL(wxHTML_URL_IMAGE, tmp);
#if defined(__WXOSX_COCOA__)
// Try to find a 2x resolution image with @2 appended before the file extension.
wxWindow* win = m_WParser->GetWindowInterface() ? m_WParser->GetWindowInterface()->GetHTMLWindow() : NULL;
if (!win && wxTheApp)
win = wxTheApp->GetTopWindow();
if (win && win->GetContentScaleFactor() > 1.0)
{
if (tmp.Find('.') != wxNOT_FOUND)
{
wxString ext = tmp.AfterLast('.');
wxString rest = tmp.BeforeLast('.');
wxString hiDPIFilename = rest + "@2." + ext;
str = m_WParser->OpenURL(wxHTML_URL_IMAGE, hiDPIFilename);
if (str)
{
scaleHDPI = 2.0;
}
}
}
#endif
if (!str)
str = m_WParser->OpenURL(wxHTML_URL_IMAGE, tmp);
if (tag.GetParamAsIntOrPercent(wxT("WIDTH"), &w, wpercent))
{
@@ -722,7 +746,7 @@ TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
}
wxHtmlImageCell *cel = new wxHtmlImageCell(
m_WParser->GetWindowInterface(),
str, w, wpercent, h, hpresent,
str, scaleHDPI, w, wpercent, h, hpresent,
m_WParser->GetPixelScale(),
al, mn);
m_WParser->ApplyStateToCell(cel);