X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d4f392ea20e048c68626a14181cbf78c8baff3a5..12bb29f5432174ecbd65549bda832d70d34a98ae:/src/gtk/cursor.cpp diff --git a/src/gtk/cursor.cpp b/src/gtk/cursor.cpp index 21f9023d29..af25572696 100644 --- a/src/gtk/cursor.cpp +++ b/src/gtk/cursor.cpp @@ -1,6 +1,6 @@ ///////////////////////////////////////////////////////////////////////////// // Name: src/gtk/cursor.cpp -// Purpose: +// Purpose: wxCursor implementation // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling @@ -14,15 +14,17 @@ #ifndef WX_PRECOMP #include "wx/window.h" - #include "wx/app.h" #include "wx/image.h" #include "wx/bitmap.h" + #include "wx/log.h" #endif // WX_PRECOMP #include +#include "wx/gtk/private/object.h" +#include "wx/gtk/private/gtk2-compat.h" //----------------------------------------------------------------------------- -// wxCursor +// wxCursorRefData //----------------------------------------------------------------------------- class wxCursorRefData: public wxGDIRefData @@ -34,35 +36,151 @@ public: virtual bool IsOk() const { return m_cursor != NULL; } GdkCursor *m_cursor; + +private: + // There is no way to copy m_cursor so we can't implement a copy ctor + // properly. + wxDECLARE_NO_COPY_CLASS(wxCursorRefData); }; wxCursorRefData::wxCursorRefData() { - m_cursor = (GdkCursor *) NULL; + m_cursor = NULL; } wxCursorRefData::~wxCursorRefData() { - if (m_cursor) gdk_cursor_unref( m_cursor ); + if (m_cursor) + { +#ifdef __WXGTK3__ + g_object_unref(m_cursor); +#else + gdk_cursor_unref(m_cursor); +#endif + } } +//----------------------------------------------------------------------------- +// wxCursor //----------------------------------------------------------------------------- -#define M_CURSORDATA wx_static_cast(wxCursorRefData*, m_refData) +#define M_CURSORDATA static_cast(m_refData) IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject) +// used in the following two ctors +extern GtkWidget *wxGetRootWindow(); + wxCursor::wxCursor() { } -wxCursor::wxCursor( wxStockCursor cursorId ) +#if wxUSE_IMAGE +wxCursor::wxCursor(const wxString& cursor_file, + wxBitmapType type, + int hotSpotX, int hotSpotY) +{ + wxImage img; + if (!img.LoadFile(cursor_file, type)) + return; + + // eventually set the hotspot: + if (!img.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X)) + img.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_X, hotSpotX); + if (!img.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y)) + img.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y, hotSpotY); + + InitFromImage(img); +} + +wxCursor::wxCursor(const wxImage& img) +{ + InitFromImage(img); +} +#endif + +wxCursor::wxCursor(const char bits[], int width, int height, + int hotSpotX, int hotSpotY, + const char maskBits[], const wxColour *fg, const wxColour *bg) +{ + m_refData = new wxCursorRefData; + if (hotSpotX < 0 || hotSpotX >= width) + hotSpotX = 0; + if (hotSpotY < 0 || hotSpotY >= height) + hotSpotY = 0; +#ifdef __WXGTK3__ + wxBitmap bitmap(bits, width, height); + if (maskBits) + bitmap.SetMask(new wxMask(wxBitmap(maskBits, width, height))); + GdkPixbuf* pixbuf = bitmap.GetPixbuf(); + if (fg || bg) + { + const int stride = gdk_pixbuf_get_rowstride(pixbuf); + const int n_channels = gdk_pixbuf_get_n_channels(pixbuf); + guchar* data = gdk_pixbuf_get_pixels(pixbuf); + for (int j = 0; j < height; j++, data += stride) + { + guchar* p = data; + for (int i = 0; i < width; i++, p += n_channels) + { + if (p[0]) + { + if (fg) + { + p[0] = fg->Red(); + p[1] = fg->Green(); + p[2] = fg->Blue(); + } + } + else + { + if (bg) + { + p[0] = bg->Red(); + p[1] = bg->Green(); + p[2] = bg->Blue(); + } + } + } + } + } + M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf(gtk_widget_get_display(wxGetRootWindow()), pixbuf, hotSpotX, hotSpotY); +#else + if (!maskBits) + maskBits = bits; + if (!fg) + fg = wxBLACK; + if (!bg) + bg = wxWHITE; + + GdkBitmap* data = gdk_bitmap_create_from_data( + gtk_widget_get_window(wxGetRootWindow()), const_cast(bits), width, height); + GdkBitmap* mask = gdk_bitmap_create_from_data( + gtk_widget_get_window(wxGetRootWindow()), const_cast(maskBits), width, height); + + M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap( + data, mask, fg->GetColor(), bg->GetColor(), + hotSpotX, hotSpotY ); + + g_object_unref (data); + g_object_unref (mask); +#endif +} + +wxCursor::~wxCursor() +{ +} + +void wxCursor::InitFromStock( wxStockCursor cursorId ) { m_refData = new wxCursorRefData(); GdkCursorType gdk_cur = GDK_LEFT_PTR; switch (cursorId) { +#ifdef __WXGTK3__ + case wxCURSOR_BLANK: gdk_cur = GDK_BLANK_CURSOR; break; +#else case wxCURSOR_BLANK: { const char bits[] = { 0 }; @@ -77,7 +195,7 @@ wxCursor::wxCursor( wxStockCursor cursorId ) g_object_unref(pixmap); } return; - +#endif case wxCURSOR_ARROW: // fall through to default case wxCURSOR_DEFAULT: gdk_cur = GDK_LEFT_PTR; break; case wxCURSOR_RIGHT_ARROW: gdk_cur = GDK_RIGHT_PTR; break; @@ -122,192 +240,48 @@ wxCursor::wxCursor( wxStockCursor cursorId ) M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur ); } -extern GtkWidget *wxGetRootWindow(); - -wxCursor::wxCursor(const char bits[], int width, int height, - int hotSpotX, int hotSpotY, - const char maskBits[], const wxColour *fg, const wxColour *bg) -{ - if (!maskBits) - maskBits = bits; - if (!fg) - fg = wxBLACK; - if (!bg) - bg = wxWHITE; - if (hotSpotX < 0 || hotSpotX >= width) - hotSpotX = 0; - if (hotSpotY < 0 || hotSpotY >= height) - hotSpotY = 0; - - GdkBitmap *data = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height ); - GdkBitmap *mask = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) maskBits, width, height); - - m_refData = new wxCursorRefData; - M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap( - data, mask, fg->GetColor(), bg->GetColor(), - hotSpotX, hotSpotY ); - - g_object_unref (data); - g_object_unref (mask); -} - #if wxUSE_IMAGE -static void GetHotSpot(const wxImage& image, int& x, int& y) +void wxCursor::InitFromImage( const wxImage & image ) { - if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X)) - x = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X); - else - x = 0; - - if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y)) - y = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y); - else - y = 0; - - if (x < 0 || x >= image.GetWidth()) - x = 0; - if (y < 0 || y >= image.GetHeight()) - y = 0; -} - -wxCursor::wxCursor( const wxImage & image ) -{ - int w = image.GetWidth() ; - int h = image.GetHeight(); - bool bHasMask = image.HasMask(); - int hotSpotX, hotSpotY; - GetHotSpot(image, hotSpotX, hotSpotY); - m_refData = new wxCursorRefData; - wxImage image_copy(image); - - GdkDisplay* display = gdk_drawable_get_display(wxGetRootWindow()->window); - if (gdk_display_supports_cursor_color(display)) + const int w = image.GetWidth(); + const int h = image.GetHeight(); + const guchar* alpha = image.GetAlpha(); + const bool hasMask = image.HasMask(); + int hotSpotX = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X); + int hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y); + if (hotSpotX < 0 || hotSpotX > w) hotSpotX = 0; + if (hotSpotY < 0 || hotSpotY > h) hotSpotY = 0; + GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data(image.GetData(), GDK_COLORSPACE_RGB, false, 8, w, h, w * 3, NULL, NULL); + if (alpha || hasMask) { - if (!image.HasAlpha()) + guchar r = 0, g = 0, b = 0; + if (hasMask) { - // add alpha, so wxBitmap will convert to pixbuf format - image_copy.InitAlpha(); + r = image.GetMaskRed(); + g = image.GetMaskGreen(); + b = image.GetMaskBlue(); } - wxBitmap bitmap(image_copy); - wxASSERT(bitmap.HasPixbuf()); - M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf - ( - display, - bitmap.GetPixbuf(), - hotSpotX, hotSpotY - ); - return; - } - - unsigned long keyMaskColor = 0; - GdkPixmap* mask; - if (bHasMask) - { - keyMaskColor = wxImageHistogram::MakeKey( - image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue()); - // get mask before image is modified - wxBitmap bitmap(image, 1); - mask = bitmap.GetMask()->GetBitmap(); - g_object_ref(mask); - } - else - { - const int size = ((w + 7) / 8) * h; - char* bits = new char[size]; - memset(bits, 0xff, size); - mask = gdk_bitmap_create_from_data( - wxGetRootWindow()->window, bits, w, h); - delete[] bits; - } - - // modify image so wxBitmap can be used to convert to pixmap - image_copy.SetMask(false); - int i, j; - wxByte* data = image_copy.GetData(); - for (j = 0; j < h; j++) - { - for (i = 0; i < w; i++, data += 3) + GdkPixbuf* pixbuf0 = pixbuf; + pixbuf = gdk_pixbuf_add_alpha(pixbuf, hasMask, r, g, b); + g_object_unref(pixbuf0); + if (alpha) { - //if average value is > mid grey - if (int(data[0]) + data[1] + data[2] >= 3 * 128) - { - // wxBitmap only converts (255,255,255) to white - data[0] = 255; - data[1] = 255; - data[2] = 255; - } + guchar* d = gdk_pixbuf_get_pixels(pixbuf); + const int stride = gdk_pixbuf_get_rowstride(pixbuf); + for (int j = 0; j < h; j++, d += stride) + for (int i = 0; i < w; i++, alpha++) + if (d[4 * i + 3]) + d[4 * i + 3] = *alpha; } } - wxBitmap bitmap(image_copy, 1); - - // find the most frequent color(s) - wxImageHistogram histogram; - image.ComputeHistogram(histogram); - - long colMostFreq = 0; - unsigned long nMost = 0; - long colNextMostFreq = 0; - unsigned long nNext = 0; - for ( wxImageHistogram::iterator entry = histogram.begin(); - entry != histogram.end(); - ++entry ) - { - unsigned long key = entry->first; - if ( !bHasMask || (key != keyMaskColor) ) - { - unsigned long value = entry->second.value; - if (value > nMost) - { - nNext = nMost; - colNextMostFreq = colMostFreq; - nMost = value; - colMostFreq = key; - } - else if (value > nNext) - { - nNext = value; - colNextMostFreq = key; - } - } - } - - wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16), - (unsigned char)(colMostFreq >> 8), - (unsigned char)(colMostFreq) ); - - wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16), - (unsigned char)(colNextMostFreq >> 8), - (unsigned char)(colNextMostFreq) ); - - int fg_intensity = fg.Red() + fg.Green() + fg.Blue(); - int bg_intensity = bg.Red() + bg.Green() + bg.Blue(); - - if (bg_intensity > fg_intensity) - { - //swap fg and bg - wxColour tmp = fg; - fg = bg; - bg = tmp; - } - - M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap - ( - bitmap.GetPixmap(), - mask, - fg.GetColor(), bg.GetColor(), - hotSpotX, hotSpotY - ); - - g_object_unref (mask); + m_refData = new wxCursorRefData; + M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf(gtk_widget_get_display(wxGetRootWindow()), pixbuf, hotSpotX, hotSpotY); + g_object_unref(pixbuf); } #endif // wxUSE_IMAGE -wxCursor::~wxCursor() -{ -} - GdkCursor *wxCursor::GetCursor() const { return M_CURSORDATA->m_cursor; @@ -318,9 +292,17 @@ wxGDIRefData *wxCursor::CreateGDIRefData() const return new wxCursorRefData; } -wxGDIRefData *wxCursor::CloneGDIRefData(const wxGDIRefData *data) const +wxGDIRefData * +wxCursor::CloneGDIRefData(const wxGDIRefData * WXUNUSED(data)) const { - return new wxCursorRefData(*wx_static_cast(const wxCursorRefData *, data)); + // TODO: We can't clone GDK cursors at the moment. To do this we'd need + // to remember the original data from which the cursor was created + // (i.e. standard cursor type or the bitmap) or use + // gdk_cursor_get_cursor_type() (which is in 2.22+ only) and + // gdk_cursor_get_image(). + wxFAIL_MSG( wxS("Cloning cursors is not implemented in wxGTK.") ); + + return new wxCursorRefData; } //----------------------------------------------------------------------------- @@ -344,16 +326,15 @@ const wxCursor wxBusyCursor::GetBusyCursor() return wxCursor(wxCURSOR_WATCH); } -static void InternalIdle(const wxWindowList& list, GdkDisplay*& display) +static void UpdateCursors(GdkDisplay** display) { - wxWindowList::const_iterator i = list.begin(); - for (size_t n = list.size(); n--; ++i) + wxWindowList::const_iterator i = wxTopLevelWindows.begin(); + for (size_t n = wxTopLevelWindows.size(); n--; ++i) { wxWindow* win = *i; - if (display == NULL && win->m_widget && win->m_widget->window) - display = gdk_drawable_get_display(win->m_widget->window); - win->OnInternalIdle(); - InternalIdle(win->GetChildren(), display); + win->GTKUpdateCursor(); + if (display && *display == NULL && win->m_widget) + *display = gtk_widget_get_display(win->m_widget); } } @@ -364,8 +345,7 @@ void wxEndBusyCursor() g_globalCursor = gs_savedCursor; gs_savedCursor = wxNullCursor; - GdkDisplay* unused = NULL; - InternalIdle(wxTopLevelWindows, unused); + UpdateCursors(NULL); } void wxBeginBusyCursor(const wxCursor* cursor) @@ -373,13 +353,13 @@ void wxBeginBusyCursor(const wxCursor* cursor) if (gs_busyCount++ > 0) return; - wxASSERT_MSG( !gs_savedCursor.Ok(), + wxASSERT_MSG( !gs_savedCursor.IsOk(), wxT("forgot to call wxEndBusyCursor, will leak memory") ); gs_savedCursor = g_globalCursor; g_globalCursor = *cursor; GdkDisplay* display = NULL; - InternalIdle(wxTopLevelWindows, display); + UpdateCursors(&display); if (display) gdk_display_flush(display); } @@ -392,5 +372,5 @@ bool wxIsBusy() void wxSetCursor( const wxCursor& cursor ) { g_globalCursor = cursor; - wxTheApp->WakeUpIdle(); + UpdateCursors(NULL); }