*** empty log message ***

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

diff --git a/src/html/mod_image.cpp b/src/html/mod_image.cpp
new file mode 100644 (file)
index 0000000..908e4b6
--- /dev/null
+++ b/src/html/mod_image.cpp
@@ -0,0 +1,147 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        mod_image.cpp
+// Purpose:     wxHtml module for displaying images
+// Author:      Vaclav Slavik
+// Copyright:   (c) 1999 Vaclav Slavik
+// Licence:     wxWindows Licence
+/////////////////////////////////////////////////////////////////////////////
+
+#include "wx/defs.h"
+#if wxUSE_HTML
+
+#include <wx/html/forcelink.h>
+#include <wx/html/mod_templ.h>
+
+#include <wx/wxhtml.h>
+#include <wx/image.h>
+
+FORCE_LINK_ME(mod_image)
+
+
+//--------------------------------------------------------------------------------
+// wxHtmlImageCell
+//                  Image/bitmap
+//--------------------------------------------------------------------------------
+
+class wxHtmlImageCell : public wxHtmlCell
+{
+    public:
+        wxBitmap *m_Image;
+
+        wxHtmlImageCell(wxFSFile *input, int w = -1, int h = -1, int align = HTML_ALIGN_BOTTOM);
+        ~wxHtmlImageCell() {if (m_Image) delete m_Image;}
+        void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
+};
+
+
+
+//--------------------------------------------------------------------------------
+// wxHtmlImageCell
+//--------------------------------------------------------------------------------
+
+wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, int align) : wxHtmlCell()
+{
+    wxImage *img;
+    int ww, hh;
+    wxString m = input -> GetMimeType();
+    wxInputStream *s = input -> GetStream();
+
+#if wxVERSION_NUMBER < 2100
+/* NOTE : use this *old* code only if you have old 2.0.1 wxWindows distribution
+   and don't want to upgrade it with stuffs from add-on/wxwin201 */
+         if (wxMimeTypesManager::IsOfType(m, "image/png"))  img = new wxImage(*s, wxBITMAP_TYPE_PNG);
+    else if (wxMimeTypesManager::IsOfType(m, "image/jpeg")) img = new wxImage(*s, wxBITMAP_TYPE_JPEG);
+    else if (wxMimeTypesManager::IsOfType(m, "image/bmp"))  img = new wxImage(*s, wxBITMAP_TYPE_BMP);
+    else if (wxMimeTypesManager::IsOfType(m, "image/gif"))  img = new wxImage(*s, wxBITMAP_TYPE_GIF);
+    else if (wxMimeTypesManager::IsOfType(m, "image/tiff")) img = new wxImage(*s, wxBITMAP_TYPE_TIF);
+    else if (wxMimeTypesManager::IsOfType(m, "image/xpm"))  img = new wxImage(*s, wxBITMAP_TYPE_XPM);
+    else if (wxMimeTypesManager::IsOfType(m, "image/xbm"))  img = new wxImage(*s, wxBITMAP_TYPE_XBM);
+    else img = NULL;
+#else
+    img = new wxImage(*s, m);
+#endif
+
+    m_Image = NULL;
+    if (img && (img -> Ok())) {
+        ww = img -> GetWidth();
+        hh = img -> GetHeight();
+        if (w != -1) m_Width = w; else m_Width = ww;
+        if (h != -1) m_Height = h; else m_Height = hh;
+        if ((m_Width != ww) || (m_Height != hh)) {
+            wxImage img2 = img -> Scale(m_Width, m_Height);
+            m_Image = new wxBitmap(img2.ConvertToBitmap());
+        }
+        else
+            m_Image = new wxBitmap(img -> ConvertToBitmap());
+        delete img;
+    }
+    switch (align) {
+        case HTML_ALIGN_TOP :
+                        m_Descent = m_Height; break;
+        case HTML_ALIGN_CENTER :
+                        m_Descent = m_Height / 2; break;
+        case HTML_ALIGN_BOTTOM : default :
+                        m_Descent = 0; break;
+    }
+}
+
+
+
+void wxHtmlImageCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
+{
+    if (m_Image)
+        dc.DrawBitmap(*m_Image, x + m_PosX, y + m_PosY, TRUE);
+    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
+}
+
+
+
+
+
+//--------------------------------------------------------------------------------
+// tag handler
+//--------------------------------------------------------------------------------
+
+TAG_HANDLER_BEGIN(IMG, "IMG")
+
+    TAG_HANDLER_PROC(tag)
+    {
+        if (tag.HasParam("SRC")) {
+            int w = -1, h = -1;
+            int al;
+            wxFSFile *str;
+            wxString tmp = tag.GetParam("SRC");
+
+            str = m_WParser -> GetFS() -> OpenFile(tmp);
+            if (tag.HasParam("WIDTH")) tag.ScanParam("WIDTH", "%i", &w);
+            if (tag.HasParam("HEIGHT")) tag.ScanParam("HEIGHT", "%i", &h);
+            al = HTML_ALIGN_BOTTOM;
+            if (tag.HasParam("ALIGN")) {
+                wxString alstr = tag.GetParam("ALIGN");
+                alstr.MakeUpper(); // for the case alignment was in ".."
+                if (alstr == "TEXTTOP") al = HTML_ALIGN_TOP;
+                else if ((alstr == "CENTER") || (alstr == "ABSCENTER")) al = HTML_ALIGN_CENTER;
+            }
+            if (str) {
+                wxHtmlCell *cel = new wxHtmlImageCell(str, w, h, al);
+                cel -> SetLink(m_WParser -> GetLink());
+                m_WParser -> GetContainer() -> InsertCell(cel);
+                delete str;
+            }
+        }
+
+        return FALSE;
+    }
+
+TAG_HANDLER_END(IMAGE)
+
+
+
+TAGS_MODULE_BEGIN(Image)
+
+    TAGS_MODULE_ADD(IMG)
+
+TAGS_MODULE_END(Image)
+
+
+#endif
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