X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/58c837a4e67c0996134cc0947691dc09c5f26687..636d266b8993dd831aa47bdd7e673be32166b54a:/src/gtk/colour.cpp?ds=sidebyside diff --git a/src/gtk/colour.cpp b/src/gtk/colour.cpp index db73e73343..9ac38bff4b 100644 --- a/src/gtk/colour.cpp +++ b/src/gtk/colour.cpp @@ -15,6 +15,7 @@ #include "wx/gdicmn.h" #include +#include #include //----------------------------------------------------------------------------- @@ -23,17 +24,39 @@ class wxColourRefData: public wxObjectRefData { - public: - +public: wxColourRefData(); ~wxColourRefData(); + void FreeColour(); + void AllocColour( GdkColormap* cmap ); +public: GdkColor m_color; GdkColormap *m_colormap; bool m_hasPixel; - friend wxColour; + friend class wxColour; + + // reference counter for systems with <= 8-Bit display + static gushort colMapAllocCounter[ 256 ]; +}; + +gushort wxColourRefData::colMapAllocCounter[ 256 ] = +{ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; wxColourRefData::wxColourRefData() @@ -53,7 +76,51 @@ wxColourRefData::~wxColourRefData() void wxColourRefData::FreeColour() { -// if (m_hasPixel) gdk_colors_free( m_colormap, &m_color, 1, 0 ); + if (m_colormap) + { +#ifdef __WXGTK20__ + if ((m_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || + (m_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) +#else + GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) m_colormap; + if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || + (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) +#endif + { + int idx = m_color.pixel; + colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] - 1; + + if (colMapAllocCounter[ idx ] == 0) + gdk_colormap_free_colors( m_colormap, &m_color, 1 ); + } + } +} + +void wxColourRefData::AllocColour( GdkColormap *cmap ) +{ + if (m_hasPixel && (m_colormap == cmap)) + return; + + FreeColour(); + +#ifdef __WXGTK20__ + if ((m_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || + (m_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) +#else + GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap; + if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || + (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) +#endif + { + m_hasPixel = gdk_colormap_alloc_color( cmap, &m_color, FALSE, TRUE ); + int idx = m_color.pixel; + colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] + 1; + } + else + { + m_hasPixel = gdk_color_alloc( cmap, &m_color ); + } + m_colormap = cmap; } //----------------------------------------------------------------------------- @@ -91,8 +158,15 @@ void wxColour::InitFromName( const wxString &colourName ) m_refData = new wxColourRefData(); if (!gdk_color_parse( colourName.mb_str(), &M_COLDATA->m_color )) { - wxFAIL_MSG( wxT("wxColour: couldn't find colour") ); - + // VZ: asserts are good in general but this one is triggered by + // calling wxColourDatabase::FindColour() with an + // unrecognized colour name and this can't be avoided from the + // user code, so don't give it here + // + // a better solution would be to changed code in FindColour() + + //wxFAIL_MSG( wxT("wxColour: couldn't find colour") ); + delete m_refData; m_refData = (wxObjectRefData *) NULL; } @@ -118,22 +192,22 @@ wxColour& wxColour::operator = ( const wxColour& col ) bool wxColour::operator == ( const wxColour& col ) const { if (m_refData == col.m_refData) return TRUE; - + if (!m_refData) return FALSE; if (!col.m_refData) return FALSE; - + GdkColor *own = &(((wxColourRefData*)m_refData)->m_color); GdkColor *other = &(((wxColourRefData*)col.m_refData)->m_color); if (own->red != other->red) return FALSE; if (own->blue != other->blue) return FALSE; if (own->green != other->green) return FALSE; - + return TRUE; } bool wxColour::operator != ( const wxColour& col) const { - return m_refData != col.m_refData; + return !(*this == col); } void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue ) @@ -176,36 +250,7 @@ void wxColour::CalcPixel( GdkColormap *cmap ) { if (!Ok()) return; - if ((M_COLDATA->m_hasPixel) && (M_COLDATA->m_colormap == cmap)) return; - - M_COLDATA->FreeColour(); - - GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap; - if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || - (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) - { - GdkColor *colors = cmap->colors; - int max = 3 * (65536); - int index = -1; - - for (int i = 0; i < cmap->size; i++) - { - int rdiff = (M_COLDATA->m_color.red - colors[i].red); - int gdiff = (M_COLDATA->m_color.green - colors[i].green); - int bdiff = (M_COLDATA->m_color.blue - colors[i].blue); - int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff); - if (sum < max) { index = i; max = sum; } - } - - M_COLDATA->m_hasPixel = TRUE; - M_COLDATA->m_color.pixel = index; - } - else - { - M_COLDATA->m_hasPixel = gdk_color_alloc( cmap, &M_COLDATA->m_color ); - } - - M_COLDATA->m_colormap = cmap; + M_COLDATA->AllocColour( cmap ); } int wxColour::GetPixel() const