X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7e410431f34f973367763ae6fb91ad78c9b80a94..b871bb951a69addc7799f211f7c597cffbe5a44c:/src/gtk/cursor.cpp?ds=inline diff --git a/src/gtk/cursor.cpp b/src/gtk/cursor.cpp index c233aecccc..0dedcab00b 100644 --- a/src/gtk/cursor.cpp +++ b/src/gtk/cursor.cpp @@ -1,74 +1,150 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: cursor.cpp -// Purpose: +// Name: src/gtk/cursor.cpp +// Purpose: wxCursor implementation // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// - -#ifdef __GNUG__ -#pragma implementation "cursor.h" -#endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #include "wx/cursor.h" -#include "wx/utils.h" -#include "wx/app.h" -#include -#include +#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 -//----------------------------------------------------------------------------- -// idle system -//----------------------------------------------------------------------------- - -extern void wxapp_install_idle_handler(); -extern bool g_isIdle; +#include //----------------------------------------------------------------------------- -// wxCursor +// wxCursorRefData //----------------------------------------------------------------------------- -class wxCursorRefData: public wxObjectRefData +class wxCursorRefData: public wxGDIRefData { - public: - +public: wxCursorRefData(); - ~wxCursorRefData(); + virtual ~wxCursorRefData(); + + virtual bool IsOk() const { return m_cursor != NULL; } GdkCursor *m_cursor; }; wxCursorRefData::wxCursorRefData() { - m_cursor = (GdkCursor *) NULL; + m_cursor = NULL; } wxCursorRefData::~wxCursorRefData() { - if (m_cursor) gdk_cursor_destroy( m_cursor ); + if (m_cursor) gdk_cursor_unref( m_cursor ); } + //----------------------------------------------------------------------------- +// wxCursor +//----------------------------------------------------------------------------- + +#define M_CURSORDATA static_cast(m_refData) -#define M_CURSORDATA ((wxCursorRefData *)m_refData) +IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject) + +// used in the following two ctors +extern GtkWidget *wxGetRootWindow(); -IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject) wxCursor::wxCursor() { } -wxCursor::wxCursor( int 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( 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); +} + +wxCursor::~wxCursor() +{ +} + +void wxCursor::InitFromStock( wxStockCursor cursorId ) { m_refData = new wxCursorRefData(); GdkCursorType gdk_cur = GDK_LEFT_PTR; switch (cursorId) { + case wxCURSOR_BLANK: + { + const char bits[] = { 0 }; + const GdkColor color = { 0, 0, 0, 0 }; + + GdkPixmap *pixmap = gdk_bitmap_create_from_data(NULL, bits, 1, 1); + M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(pixmap, + pixmap, + &color, + &color, + 0, 0); + g_object_unref(pixmap); + } + return; + + case wxCURSOR_ARROW: // fall through to default case wxCURSOR_DEFAULT: gdk_cur = GDK_LEFT_PTR; break; - case wxCURSOR_HAND: gdk_cur = GDK_HAND1; break; + case wxCURSOR_RIGHT_ARROW: gdk_cur = GDK_RIGHT_PTR; break; + case wxCURSOR_HAND: gdk_cur = GDK_HAND2; break; case wxCURSOR_CROSS: gdk_cur = GDK_CROSSHAIR; break; case wxCURSOR_SIZEWE: gdk_cur = GDK_SB_H_DOUBLE_ARROW; break; case wxCURSOR_SIZENS: gdk_cur = GDK_SB_V_DOUBLE_ARROW; break; @@ -99,91 +175,191 @@ wxCursor::wxCursor( int cursorId ) case wxCURSOR_BASED_ARROW_UP: gdk_cur = GDK_BASED_ARROW_UP; break; case wxCURSOR_BASED_ARROW_DOWN: gdk_cur = GDK_BASED_ARROW_DOWN; break; */ + default: wxFAIL_MSG(wxT("unsupported cursor type")); // will use the standard one - - case wxCURSOR_ARROW: break; } M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur ); } -extern GtkWidget *wxGetRootWindow(); +#if wxUSE_IMAGE -wxCursor::wxCursor(const char bits[], int width, int height, - int hotSpotX, int hotSpotY, - const char maskBits[], wxColour *fg, wxColour *bg) +static void GetHotSpot(const wxImage& image, int& x, int& y) { - 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); + 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; +} +void wxCursor::InitFromImage( 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; - M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap( - data, mask, fg->GetColor(), bg->GetColor(), - hotSpotX, hotSpotY ); + wxImage image_copy(image); - gdk_bitmap_unref( data ); - gdk_bitmap_unref( mask ); -} + GdkDisplay* display = gdk_drawable_get_display(wxGetRootWindow()->window); + if (gdk_display_supports_cursor_color(display)) + { + if (!image.HasAlpha()) + { + // add alpha, so wxBitmap will convert to pixbuf format + image_copy.InitAlpha(); + } + 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; + } -wxCursor::wxCursor( const wxCursor &cursor ) -{ - Ref( cursor ); -} + // 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) + { + //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; + } + } + } + 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; + } + } + } -wxCursor::~wxCursor() -{ -} + wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16), + (unsigned char)(colMostFreq >> 8), + (unsigned char)(colMostFreq) ); -wxCursor& wxCursor::operator = ( const wxCursor& cursor ) -{ - if (*this == cursor) - return (*this); + wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16), + (unsigned char)(colNextMostFreq >> 8), + (unsigned char)(colNextMostFreq) ); - Ref( cursor ); + int fg_intensity = fg.Red() + fg.Green() + fg.Blue(); + int bg_intensity = bg.Red() + bg.Green() + bg.Blue(); - return *this; -} + if (bg_intensity > fg_intensity) + { + //swap fg and bg + wxColour tmp = fg; + fg = bg; + bg = tmp; + } -bool wxCursor::operator == ( const wxCursor& cursor ) const -{ - return m_refData == cursor.m_refData; + M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap + ( + bitmap.GetPixmap(), + mask, + fg.GetColor(), bg.GetColor(), + hotSpotX, hotSpotY + ); + + g_object_unref (mask); } -bool wxCursor::operator != ( const wxCursor& cursor ) const +#endif // wxUSE_IMAGE + +GdkCursor *wxCursor::GetCursor() const { - return m_refData != cursor.m_refData; + return M_CURSORDATA->m_cursor; } -bool wxCursor::Ok() const +wxGDIRefData *wxCursor::CreateGDIRefData() const { - return (m_refData != NULL); + return new wxCursorRefData; } -GdkCursor *wxCursor::GetCursor() const +wxGDIRefData *wxCursor::CloneGDIRefData(const wxGDIRefData *data) const { - return M_CURSORDATA->m_cursor; + return new wxCursorRefData(*static_cast(data)); } //----------------------------------------------------------------------------- // busy cursor routines //----------------------------------------------------------------------------- -extern wxCursor g_globalCursor; +/* Current cursor, in order to hang on to + * cursor handle when setting the cursor globally */ +wxCursor g_globalCursor; static wxCursor gs_savedCursor; static int gs_busyCount = 0; @@ -198,19 +374,31 @@ const wxCursor wxBusyCursor::GetBusyCursor() return wxCursor(wxCURSOR_WATCH); } +static void InternalIdle(const wxWindowList& list, GdkDisplay*& display) +{ + wxWindowList::const_iterator i = list.begin(); + for (size_t n = list.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); + } +} + void wxEndBusyCursor() { if (--gs_busyCount > 0) return; - wxSetCursor( gs_savedCursor ); + g_globalCursor = gs_savedCursor; gs_savedCursor = wxNullCursor; - - if (wxTheApp) - wxTheApp->SendIdleEvents(); + GdkDisplay* unused = NULL; + InternalIdle(wxTopLevelWindows, unused); } -void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) ) +void wxBeginBusyCursor(const wxCursor* cursor) { if (gs_busyCount++ > 0) return; @@ -219,13 +407,11 @@ void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) ) wxT("forgot to call wxEndBusyCursor, will leak memory") ); gs_savedCursor = g_globalCursor; - - wxSetCursor( wxCursor(wxCURSOR_WATCH) ); - - if (wxTheApp) - wxTheApp->SendIdleEvents(); - - gdk_flush(); + g_globalCursor = *cursor; + GdkDisplay* display = NULL; + InternalIdle(wxTopLevelWindows, display); + if (display) + gdk_display_flush(display); } bool wxIsBusy() @@ -235,8 +421,6 @@ bool wxIsBusy() void wxSetCursor( const wxCursor& cursor ) { - if (g_isIdle) - wxapp_install_idle_handler(); - g_globalCursor = cursor; + wxTheApp->WakeUpIdle(); }