X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d4f392ea20e048c68626a14181cbf78c8baff3a5..8a31648287be0ef976f133de2786b137f1e98340:/src/gtk/cursor.cpp diff --git a/src/gtk/cursor.cpp b/src/gtk/cursor.cpp index 21f9023d29..615677e506 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 @@ -17,12 +17,15 @@ #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 @@ -34,11 +37,16 @@ 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() @@ -46,17 +54,81 @@ wxCursorRefData::~wxCursorRefData() if (m_cursor) gdk_cursor_unref( m_cursor ); } + +//----------------------------------------------------------------------------- +// 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) +{ + 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( + 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_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); +} + +wxCursor::~wxCursor() +{ +} + +void wxCursor::InitFromStock( wxStockCursor cursorId ) { m_refData = new wxCursorRefData(); @@ -122,35 +194,6 @@ 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) @@ -171,7 +214,7 @@ static void GetHotSpot(const wxImage& image, int& x, int& y) y = 0; } -wxCursor::wxCursor( const wxImage & image ) +void wxCursor::InitFromImage( const wxImage & image ) { int w = image.GetWidth() ; int h = image.GetHeight(); @@ -181,7 +224,7 @@ wxCursor::wxCursor( const wxImage & image ) m_refData = new wxCursorRefData; wxImage image_copy(image); - GdkDisplay* display = gdk_drawable_get_display(wxGetRootWindow()->window); + GdkDisplay* display = gdk_drawable_get_display(gtk_widget_get_window(wxGetRootWindow())); if (gdk_display_supports_cursor_color(display)) { if (!image.HasAlpha()) @@ -197,117 +240,112 @@ wxCursor::wxCursor( const wxImage & image ) 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 + else // no colour cursor support { - 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; - } + unsigned long keyMaskColor = 0; + GdkPixmap *maskRaw; + if (bHasMask) + { + keyMaskColor = wxImageHistogram::MakeKey( + image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue()); + // get mask before image is modified + wxBitmap bitmap(image, 1); + maskRaw = bitmap.GetMask()->GetBitmap(); + g_object_ref(maskRaw); + } + else + { + const int size = ((w + 7) / 8) * h; + char* bits = new char[size]; + memset(bits, 0xff, size); + maskRaw = gdk_bitmap_create_from_data( + gtk_widget_get_window(wxGetRootWindow()), 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) + // assign the raw pointer to wxGtkObject to ensure it is unref'd later + wxGtkObject mask(maskRaw); + + // modify image so wxBitmap can be used to convert to pixmap + image_copy.SetMask(false); + wxByte* data = image_copy.GetData(); + for (int j = 0; j < h; j++) { - //if average value is > mid grey - if (int(data[0]) + data[1] + data[2] >= 3 * 128) + for (int i = 0; i < w; i++, data += 3) { - // wxBitmap only converts (255,255,255) to white - data[0] = 255; - data[1] = 255; - data[2] = 255; + // if average value of the pixel is > mid grey, convert it to + // background (0), otherwise to foreground (255, using wxBitmap + // convention) + data[0] = + data[1] = + data[2] = int(data[0]) + data[1] + data[2] >= 3 * 128 ? 0 : 255; } } - } - 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) ) + 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 value = entry->second.value; - if (value > nMost) - { - nNext = nMost; - colNextMostFreq = colMostFreq; - nMost = value; - colMostFreq = key; - } - else if (value > nNext) + unsigned long key = entry->first; + if ( !bHasMask || (key != keyMaskColor) ) { - nNext = value; - colNextMostFreq = key; + 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) ); + wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16), + (unsigned char)(colMostFreq >> 8), + (unsigned char)(colMostFreq) ); - int fg_intensity = fg.Red() + fg.Green() + fg.Blue(); - int bg_intensity = bg.Red() + bg.Green() + bg.Blue(); + wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16), + (unsigned char)(colNextMostFreq >> 8), + (unsigned char)(colNextMostFreq) ); - if (bg_intensity > fg_intensity) - { - //swap fg and bg - wxColour tmp = fg; - fg = bg; - bg = tmp; - } + int fg_intensity = fg.Red() + fg.Green() + fg.Blue(); + int bg_intensity = bg.Red() + bg.Green() + bg.Blue(); - M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap - ( - bitmap.GetPixmap(), - mask, - fg.GetColor(), bg.GetColor(), - hotSpotX, hotSpotY - ); + if (bg_intensity > fg_intensity) + { + //swap fg and bg + wxColour tmp = fg; + fg = bg; + bg = tmp; + } - g_object_unref (mask); + M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap + ( + bitmap.GetPixmap(), + mask, + fg.GetColor(), bg.GetColor(), + hotSpotX, hotSpotY + ); + } } #endif // wxUSE_IMAGE -wxCursor::~wxCursor() -{ -} - GdkCursor *wxCursor::GetCursor() const { return M_CURSORDATA->m_cursor; @@ -318,9 +356,17 @@ 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 +390,15 @@ 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 +409,7 @@ void wxEndBusyCursor() g_globalCursor = gs_savedCursor; gs_savedCursor = wxNullCursor; - GdkDisplay* unused = NULL; - InternalIdle(wxTopLevelWindows, unused); + UpdateCursors(NULL); } void wxBeginBusyCursor(const wxCursor* cursor) @@ -373,13 +417,13 @@ 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 +436,5 @@ bool wxIsBusy() void wxSetCursor( const wxCursor& cursor ) { g_globalCursor = cursor; - wxTheApp->WakeUpIdle(); + UpdateCursors(NULL); }