X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/93c5dd39af2fb5eb12c5c837999be944543b21b0..afab8b85c4bdeb11a248c57d13e9bcfa14149ef8:/src/gtk/cursor.cpp diff --git a/src/gtk/cursor.cpp b/src/gtk/cursor.cpp index 3c22177973..aab088f64a 100644 --- a/src/gtk/cursor.cpp +++ b/src/gtk/cursor.cpp @@ -1,66 +1,208 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 "gdk/gdk.h" +#ifndef WX_PRECOMP + #include "wx/window.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 wxObjectRefData +class wxCursorRefData: public wxGDIRefData { - public: - +public: wxCursorRefData(); - ~wxCursorRefData(); + virtual ~wxCursorRefData(); + + 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_destroy( m_cursor ); + if (m_cursor) + { +#ifdef __WXGTK3__ + g_object_unref(m_cursor); +#else + gdk_cursor_unref(m_cursor); +#endif + } } //----------------------------------------------------------------------------- +// wxCursor +//----------------------------------------------------------------------------- + +#define M_CURSORDATA static_cast(m_refData) -#define M_CURSORDATA ((wxCursorRefData *)m_refData) +IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject) -IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject) +// used in the following two ctors +extern GtkWidget *wxGetRootWindow(); 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) +{ + 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) { - case wxCURSOR_HAND: gdk_cur = GDK_HAND1; break; +#ifdef __WXGTK3__ + case wxCURSOR_BLANK: gdk_cur = GDK_BLANK_CURSOR; break; +#else + 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; +#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; + 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; + case wxCURSOR_ARROWWAIT: case wxCURSOR_WAIT: case wxCURSOR_WATCH: gdk_cur = GDK_WATCH; break; case wxCURSOR_SIZING: gdk_cur = GDK_SIZING; break; @@ -77,98 +219,148 @@ wxCursor::wxCursor( int cursorId ) case wxCURSOR_LEFT_BUTTON: gdk_cur = GDK_LEFTBUTTON; break; case wxCURSOR_MIDDLE_BUTTON: gdk_cur = GDK_MIDDLEBUTTON; break; case wxCURSOR_RIGHT_BUTTON: gdk_cur = GDK_RIGHTBUTTON; break; + case wxCURSOR_BULLSEYE: gdk_cur = GDK_TARGET; break; + + case wxCURSOR_POINT_LEFT: gdk_cur = GDK_SB_LEFT_ARROW; break; + case wxCURSOR_POINT_RIGHT: gdk_cur = GDK_SB_RIGHT_ARROW; break; /* case wxCURSOR_DOUBLE_ARROW: gdk_cur = GDK_DOUBLE_ARROW; break; case wxCURSOR_CROSS_REVERSE: gdk_cur = GDK_CROSS_REVERSE; break; 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(_T("unsupported cursor type")); + wxFAIL_MSG(wxT("unsupported cursor type")); // will use the standard one - - case wxCURSOR_ARROW: break; } M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur ); } -wxCursor::wxCursor( const wxCursor &cursor ) -{ - Ref( cursor ); -} - -wxCursor::~wxCursor() -{ -} +#if wxUSE_IMAGE -wxCursor& wxCursor::operator = ( const wxCursor& cursor ) +void wxCursor::InitFromImage( const wxImage & image ) { - if (*this == cursor) - return (*this); - - Ref( cursor ); - - return *this; + 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) + { + guchar r = 0, g = 0, b = 0; + if (hasMask) + { + r = image.GetMaskRed(); + g = image.GetMaskGreen(); + b = image.GetMaskBlue(); + } + GdkPixbuf* pixbuf0 = pixbuf; + pixbuf = gdk_pixbuf_add_alpha(pixbuf, hasMask, r, g, b); + g_object_unref(pixbuf0); + if (alpha) + { + 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; + } + } + 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); } -bool wxCursor::operator == ( const wxCursor& cursor ) const -{ - return m_refData == cursor.m_refData; -} +#endif // wxUSE_IMAGE -bool wxCursor::operator != ( const wxCursor& cursor ) const +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 * WXUNUSED(data)) const { - return M_CURSORDATA->m_cursor; + // 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; } //----------------------------------------------------------------------------- // 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 = NULL; +static wxCursor gs_savedCursor; static int gs_busyCount = 0; +const wxCursor &wxBusyCursor::GetStoredCursor() +{ + return gs_savedCursor; +} + +const wxCursor wxBusyCursor::GetBusyCursor() +{ + return wxCursor(wxCURSOR_WATCH); +} + +static void UpdateCursors(GdkDisplay** display) +{ + wxWindowList::const_iterator i = wxTopLevelWindows.begin(); + for (size_t n = wxTopLevelWindows.size(); n--; ++i) + { + wxWindow* win = *i; + win->GTKUpdateCursor(); + if (display && *display == NULL && win->m_widget) + *display = gtk_widget_get_display(win->m_widget); + } +} + void wxEndBusyCursor() { - if ( --gs_busyCount > 0 ) + if (--gs_busyCount > 0) return; - wxCHECK_RET( gs_savedCursor && gs_savedCursor->Ok(), - _T("calling wxEndBusyCursor() without wxBeginBusyCursor()?") ); - - wxSetCursor(*gs_savedCursor); - delete gs_savedCursor; - gs_savedCursor = NULL; + g_globalCursor = gs_savedCursor; + gs_savedCursor = wxNullCursor; + UpdateCursors(NULL); } -void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) ) +void wxBeginBusyCursor(const wxCursor* cursor) { - if ( gs_busyCount++ > 0 ) + if (gs_busyCount++ > 0) return; - wxASSERT_MSG( !gs_savedCursor, - _T("forgot to call wxEndBusyCursor, will leak memory") ); + wxASSERT_MSG( !gs_savedCursor.IsOk(), + wxT("forgot to call wxEndBusyCursor, will leak memory") ); - gs_savedCursor = new wxCursor; - if ( g_globalCursor && g_globalCursor->Ok() ) - *gs_savedCursor = *g_globalCursor; - else - *gs_savedCursor = wxCursor(wxCURSOR_ARROW); - wxSetCursor(wxCursor(wxCURSOR_WATCH)); + gs_savedCursor = g_globalCursor; + g_globalCursor = *cursor; + GdkDisplay* display = NULL; + UpdateCursors(&display); + if (display) + gdk_display_flush(display); } bool wxIsBusy() @@ -178,5 +370,6 @@ bool wxIsBusy() void wxSetCursor( const wxCursor& cursor ) { - if (g_globalCursor) (*g_globalCursor) = cursor; + g_globalCursor = cursor; + UpdateCursors(NULL); }