+#include "wx/generic/folder.xpm"
+#include "wx/generic/deffile.xpm"
+#include "wx/generic/exefile.xpm"
+
+// ----------------------------------------------------------------------------
+// private classes - icons list management
+// ----------------------------------------------------------------------------
+
+class wxFileIconEntry : public wxObject
+{
+ public:
+ wxFileIconEntry(int i) { id = i; }
+
+ int id;
+};
+
+
+class wxFileIconsTable
+{
+ public:
+
+ wxFileIconsTable();
+
+ int GetIconID(const wxString& extension, const wxString& mime = wxEmptyString);
+ wxImageList *GetImageList() { return &m_ImageList; }
+
+ protected:
+ wxImageList m_ImageList;
+ wxHashTable m_HashTable;
+};
+
+static wxFileIconsTable *g_IconsTable = NULL;
+
+#define FI_FOLDER 0
+#define FI_UNKNOWN 1
+#define FI_EXECUTABLE 2
+
+wxFileIconsTable::wxFileIconsTable() :
+ m_ImageList(16, 16),
+ m_HashTable(wxKEY_STRING)
+{
+ m_HashTable.DeleteContents(TRUE);
+ m_ImageList.Add(wxBitmap(folder_xpm)); // FI_FOLDER
+ m_ImageList.Add(wxBitmap(deffile_xpm)); // FI_UNKNOWN
+ if (GetIconID(wxEmptyString, _T("application/x-executable")) == FI_UNKNOWN)
+ { // FI_EXECUTABLE
+ m_ImageList.Add(wxBitmap(exefile_xpm));
+ m_HashTable.Delete(_T("exe"));
+ m_HashTable.Put(_T("exe"), new wxFileIconEntry(FI_EXECUTABLE));
+ }
+ /* else put into list by GetIconID
+ (KDE defines application/x-executable for *.exe and has nice icon)
+ */
+}
+
+
+
+static wxBitmap CreateAntialiasedBitmap(const wxImage& img)
+{
+ wxImage small(16, 16);
+ unsigned char *p1, *p2, *ps;
+ unsigned char mr = img.GetMaskRed(),
+ mg = img.GetMaskGreen(),
+ mb = img.GetMaskBlue();
+
+ unsigned x, y;
+ unsigned sr, sg, sb, smask;
+
+ p1 = img.GetData(), p2 = img.GetData() + 3 * 32, ps = small.GetData();
+ small.SetMaskColour(mr, mr, mr);
+
+ for (y = 0; y < 16; y++)
+ {
+ for (x = 0; x < 16; x++)
+ {
+ sr = sg = sb = smask = 0;
+ if (p1[0] != mr || p1[1] != mg || p1[2] != mb)
+ sr += p1[0], sg += p1[1], sb += p1[2];
+ else smask++;
+ p1 += 3;
+ if (p1[0] != mr || p1[1] != mg || p1[2] != mb)
+ sr += p1[0], sg += p1[1], sb += p1[2];
+ else smask++;
+ p1 += 3;
+ if (p2[0] != mr || p2[1] != mg || p2[2] != mb)
+ sr += p2[0], sg += p2[1], sb += p2[2];
+ else smask++;
+ p2 += 3;
+ if (p2[0] != mr || p2[1] != mg || p2[2] != mb)
+ sr += p2[0], sg += p2[1], sb += p2[2];
+ else smask++;
+ p2 += 3;
+
+ if (smask > 2)
+ ps[0] = ps[1] = ps[2] = mr;
+ else
+ ps[0] = sr >> 2, ps[1] = sg >> 2, ps[2] = sb >> 2;
+ ps += 3;
+ }
+ p1 += 32 * 3, p2 += 32 * 3;
+ }
+
+ return small.ConvertToBitmap();
+}
+
+
+// finds empty borders and return non-empty area of image:
+static wxImage CutEmptyBorders(const wxImage& img)
+{
+ unsigned char mr = img.GetMaskRed(),
+ mg = img.GetMaskGreen(),
+ mb = img.GetMaskBlue();
+ unsigned char *dt = img.GetData(), *dttmp;
+ unsigned w = img.GetWidth(), h = img.GetHeight();
+
+ unsigned top, bottom, left, right, i;
+ bool empt;
+
+#define MK_DTTMP(x,y) dttmp = dt + ((x + y * w) * 3)
+#define NOEMPTY_PIX(empt) if (dttmp[0] != mr || dttmp[1] != mg || dttmp[2] != mb) {empt = FALSE; break;}
+
+ for (empt = TRUE, top = 0; empt && top < h; top++)
+ {
+ MK_DTTMP(0, top);
+ for (i = 0; i < w; i++, dttmp+=3)
+ NOEMPTY_PIX(empt)
+ }
+ for (empt = TRUE, bottom = h-1; empt && bottom > top; bottom--)
+ {
+ MK_DTTMP(0, bottom);
+ for (i = 0; i < w; i++, dttmp+=3)
+ NOEMPTY_PIX(empt)
+ }
+ for (empt = TRUE, left = 0; empt && left < w; left++)
+ {
+ MK_DTTMP(left, 0);
+ for (i = 0; i < h; i++, dttmp+=3*w)
+ NOEMPTY_PIX(empt)
+ }
+ for (empt = TRUE, right = w-1; empt && right > left; right--)
+ {
+ MK_DTTMP(right, 0);
+ for (i = 0; i < h; i++, dttmp+=3*w)
+ NOEMPTY_PIX(empt)
+ }
+ top--, left--, bottom++, right++;
+
+ return img.GetSubImage(wxRect(left, top, right - left + 1, bottom - top + 1));
+}
+
+
+
+int wxFileIconsTable::GetIconID(const wxString& extension, const wxString& mime)
+{
+ if (!extension.IsEmpty())
+ {
+ wxFileIconEntry *entry = (wxFileIconEntry*) m_HashTable.Get(extension);
+ if (entry) return (entry -> id);
+ }
+
+ wxFileType *ft = (mime.IsEmpty()) ?
+ wxTheMimeTypesManager -> GetFileTypeFromExtension(extension) :
+ wxTheMimeTypesManager -> GetFileTypeFromMimeType(mime);
+ wxIcon ic;
+ if (ft == NULL || (!ft -> GetIcon(&ic)) || (!ic.Ok()))
+ {
+ int newid = FI_UNKNOWN;
+ m_HashTable.Put(extension, new wxFileIconEntry(newid));
+ return newid;
+ }
+ wxImage img(ic);
+ delete ft;
+
+ int id = m_ImageList.GetImageCount();
+ if (img.GetWidth() == 16 && img.GetHeight() == 16)
+ m_ImageList.Add(img.ConvertToBitmap());
+ else
+ {
+ if (img.GetWidth() != 32 || img.GetHeight() != 32)
+ m_ImageList.Add(CreateAntialiasedBitmap(CutEmptyBorders(img).Rescale(32, 32)));
+ else
+ m_ImageList.Add(CreateAntialiasedBitmap(img));
+ }
+ m_HashTable.Put(extension, new wxFileIconEntry(id));
+ return id;
+}
+
projects / wxWidgets.git / blobdiff