X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fc9ab22a7692aa822bb3d8e6326dfb73d12a600b..4e15d1caa03346c126015019c1fdf093033ef40b:/src/gtk/dcclient.cpp diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp index 798b1f413f..0ad9159ef5 100644 --- a/src/gtk/dcclient.cpp +++ b/src/gtk/dcclient.cpp @@ -25,6 +25,7 @@ #include "wx/gtk/private.h" #include "wx/gtk/private/object.h" +#include "wx/private/textmeasure.h" //----------------------------------------------------------------------------- // local defines @@ -129,7 +130,11 @@ enum wxPoolGCType wxTEXT_SCREEN, wxBG_SCREEN, wxPEN_SCREEN, - wxBRUSH_SCREEN + wxBRUSH_SCREEN, + wxTEXT_COLOUR_ALPHA, + wxBG_COLOUR_ALPHA, + wxPEN_COLOUR_ALPHA, + wxBRUSH_COLOUR_ALPHA }; struct wxGC @@ -375,6 +380,18 @@ void wxWindowDCImpl::SetUpDC( bool isMemDC ) m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_SCREEN ); m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_SCREEN ); } +#if GTK_CHECK_VERSION(2,12,0) + // gdk_screen_get_rgba_colormap was added in 2.8, but this code is for + // compositing which requires 2.12 + else if (gtk_check_version(2,12,0) == NULL && + m_cmap == gdk_screen_get_rgba_colormap(gdk_colormap_get_screen(m_cmap))) + { + m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_COLOUR_ALPHA ); + m_brushGC = wxGetPoolGC( m_gdkwindow, wxBRUSH_COLOUR_ALPHA ); + m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_COLOUR_ALPHA ); + m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_COLOUR_ALPHA ); + } +#endif else { m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_COLOUR ); @@ -947,7 +964,7 @@ void wxWindowDCImpl::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord // If the pen is transparent pen we increase the size // for better compatibility with other platforms. - if ( m_pen.IsNonTransparent() ) + if (m_pen.IsTransparent()) { ++ww; ++hh; @@ -1372,69 +1389,12 @@ void wxWindowDCImpl::DoDrawText(const wxString& text, gdk_pango_context_set_colormap( m_context, m_cmap ); // not needed in gtk+ >= 2.6 - bool underlined = m_font.IsOk() && m_font.GetUnderlined(); - wxCharBuffer data = wxGTK_CONV(text); if ( !data ) return; - size_t datalen = strlen(data); - - // in Pango >= 1.16 the "underline of leading/trailing spaces" bug - // has been fixed and thus the hack implemented below should never be used - static bool pangoOk = !wx_pango_version_check(1, 16, 0); - - bool needshack = underlined && !pangoOk; - if (needshack) - { - // a PangoLayout which has leading/trailing spaces with underlined font - // is not correctly drawn by this pango version: Pango won't underline the spaces. - // This can be a problem; e.g. wxHTML rendering of underlined text relies on - // this behaviour. To workaround this problem, we use a special hack here - // suggested by pango maintainer Behdad Esfahbod: we prepend and append two - // empty space characters and give them a dummy colour attribute. - // This will force Pango to underline the leading/trailing spaces, too. - - wxCharBuffer data_tmp(datalen + 6); - // copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format - memcpy(data_tmp.data(), "\342\200\214", 3); - // copy the user string - memcpy(data_tmp.data() + 3, data, datalen); - // copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format - memcpy(data_tmp.data() + 3 + datalen, "\342\200\214", 3); - - data = data_tmp; - datalen += 6; - } - - pango_layout_set_text(m_layout, data, datalen); - - if (underlined) - { - PangoAttrList *attrs = pango_attr_list_new(); - PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE); - a->start_index = 0; - a->end_index = datalen; - pango_attr_list_insert(attrs, a); - - if (needshack) - { - // dummy colour for the leading space - a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614); - a->start_index = 0; - a->end_index = 1; - pango_attr_list_insert(attrs, a); - - // dummy colour for the trailing space - a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614); - a->start_index = datalen - 1; - a->end_index = datalen; - pango_attr_list_insert(attrs, a); - } - - pango_layout_set_attributes(m_layout, attrs); - pango_attr_list_unref(attrs); - } + pango_layout_set_text(m_layout, data, data.length()); + const bool setAttrs = m_font.GTKSetPangoAttrs(m_layout); int oldSize = 0; const bool isScaled = fabs(m_scaleY - 1.0) > 0.00001; @@ -1473,7 +1433,7 @@ void wxWindowDCImpl::DoDrawText(const wxString& text, // actually apply unscaled font pango_layout_set_font_description( m_layout, m_fontdesc ); } - if (underlined) + if (setAttrs) { // undo underline attributes setting: pango_layout_set_attributes(m_layout, NULL); @@ -1492,197 +1452,80 @@ void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord wxCHECK_RET( IsOk(), wxT("invalid window dc") ); -#if __WXGTK26__ - if (!gtk_check_version(2,6,0)) - { - x = XLOG2DEV(x); - y = YLOG2DEV(y); - - pango_layout_set_text(m_layout, wxGTK_CONV(text), -1); + x = XLOG2DEV(x); + y = YLOG2DEV(y); - if (m_font.GetUnderlined()) - { - PangoAttrList *attrs = pango_attr_list_new(); - PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE); - pango_attr_list_insert(attrs, a); - pango_layout_set_attributes(m_layout, attrs); - pango_attr_list_unref(attrs); - } + pango_layout_set_text(m_layout, wxGTK_CONV(text), -1); + const bool setAttrs = m_font.GTKSetPangoAttrs(m_layout); + int oldSize = 0; + const bool isScaled = fabs(m_scaleY - 1.0) > 0.00001; + if (isScaled) + { + //TODO: when Pango >= 1.6 is required, use pango_matrix_scale() + // If there is a user or actually any scale applied to + // the device context, scale the font. - int oldSize = 0; - const bool isScaled = fabs(m_scaleY - 1.0) > 0.00001; - if (isScaled) - { - //TODO: when Pango >= 1.6 is required, use pango_matrix_scale() - // If there is a user or actually any scale applied to - // the device context, scale the font. + // scale font description + oldSize = pango_font_description_get_size(m_fontdesc); + pango_font_description_set_size(m_fontdesc, int(oldSize * m_scaleY)); - // scale font description - oldSize = pango_font_description_get_size(m_fontdesc); - pango_font_description_set_size(m_fontdesc, int(oldSize * m_scaleY)); + // actually apply scaled font + pango_layout_set_font_description( m_layout, m_fontdesc ); + } - // actually apply scaled font - pango_layout_set_font_description( m_layout, m_fontdesc ); - } + int w, h; + pango_layout_get_pixel_size(m_layout, &w, &h); - int w, h; - pango_layout_get_pixel_size(m_layout, &w, &h); - - const GdkColor* bg_col = NULL; - if (m_backgroundMode == wxBRUSHSTYLE_SOLID) - bg_col = m_textBackgroundColour.GetColor(); - - // rotate the text - PangoMatrix matrix = PANGO_MATRIX_INIT; - pango_matrix_rotate (&matrix, angle); - pango_context_set_matrix (m_context, &matrix); - pango_layout_context_changed (m_layout); - - // To be compatible with MSW, the rotation axis must be in the old - // top-left corner. - // Calculate the vertices of the rotated rectangle containing the text, - // relative to the old top-left vertex. - // We could use the matrix for this, but it's simpler with trignonometry. - double rad = DegToRad(angle); - // the rectangle vertices are counted clockwise with the first one - // being at (0, 0) - double x2 = w * cos(rad); - double y2 = -w * sin(rad); // y axis points to the bottom, hence minus - double x4 = h * sin(rad); - double y4 = h * cos(rad); - double x3 = x4 + x2; - double y3 = y4 + y2; - // Then we calculate max and min of the rotated rectangle. - wxCoord maxX = (wxCoord)(dmax(dmax(0, x2), dmax(x3, x4)) + 0.5), - maxY = (wxCoord)(dmax(dmax(0, y2), dmax(y3, y4)) + 0.5), - minX = (wxCoord)(dmin(dmin(0, x2), dmin(x3, x4)) - 0.5), - minY = (wxCoord)(dmin(dmin(0, y2), dmin(y3, y4)) - 0.5); - - gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x+minX, y+minY, - m_layout, NULL, bg_col); - - if (m_font.GetUnderlined()) - pango_layout_set_attributes(m_layout, NULL); - - // clean up the transformation matrix - pango_context_set_matrix(m_context, NULL); + const GdkColor* bg_col = NULL; + if (m_backgroundMode == wxBRUSHSTYLE_SOLID) + bg_col = m_textBackgroundColour.GetColor(); - if (isScaled) - { - // reset unscaled size - pango_font_description_set_size( m_fontdesc, oldSize ); + // rotate the text + PangoMatrix matrix = PANGO_MATRIX_INIT; + pango_matrix_rotate (&matrix, angle); + pango_context_set_matrix (m_context, &matrix); + pango_layout_context_changed (m_layout); + + // To be compatible with MSW, the rotation axis must be in the old + // top-left corner. + // Calculate the vertices of the rotated rectangle containing the text, + // relative to the old top-left vertex. + // We could use the matrix for this, but it's simpler with trignonometry. + double rad = DegToRad(angle); + // the rectangle vertices are counted clockwise with the first one + // being at (0, 0) + double x2 = w * cos(rad); + double y2 = -w * sin(rad); // y axis points to the bottom, hence minus + double x4 = h * sin(rad); + double y4 = h * cos(rad); + double x3 = x4 + x2; + double y3 = y4 + y2; + // Then we calculate max and min of the rotated rectangle. + wxCoord maxX = (wxCoord)(dmax(dmax(0, x2), dmax(x3, x4)) + 0.5), + maxY = (wxCoord)(dmax(dmax(0, y2), dmax(y3, y4)) + 0.5), + minX = (wxCoord)(dmin(dmin(0, x2), dmin(x3, x4)) - 0.5), + minY = (wxCoord)(dmin(dmin(0, y2), dmin(y3, y4)) - 0.5); + + gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x+minX, y+minY, + m_layout, NULL, bg_col); + + if (setAttrs) + pango_layout_set_attributes(m_layout, NULL); - // actually apply unscaled font - pango_layout_set_font_description( m_layout, m_fontdesc ); - } + // clean up the transformation matrix + pango_context_set_matrix(m_context, NULL); - CalcBoundingBox(x+minX, y+minY); - CalcBoundingBox(x+maxX, y+maxY); - } - else -#endif //__WXGTK26__ - { -#if wxUSE_IMAGE - if ( wxIsNullDouble(angle) ) + if (isScaled) { - DoDrawText(text, x, y); - return; - } - - wxCoord w; - wxCoord h; - - // TODO: implement later without GdkFont for GTK 2.0 - DoGetTextExtent(text, &w, &h, NULL,NULL, &m_font); - - // draw the string normally - wxBitmap src(w, h); - wxMemoryDC dc; - dc.SelectObject(src); - dc.SetFont(GetFont()); - dc.SetBackground(*wxBLACK_BRUSH); - dc.SetBrush(*wxBLACK_BRUSH); - dc.Clear(); - dc.SetTextForeground( *wxWHITE ); - dc.DrawText(text, 0, 0); - dc.SelectObject(wxNullBitmap); + // reset unscaled size + pango_font_description_set_size( m_fontdesc, oldSize ); - // Calculate the size of the rotated bounding box. - double rad = DegToRad(angle); - double dx = cos(rad), - dy = sin(rad); - - // the rectngle vertices are counted clockwise with the first one being at - // (0, 0) (or, rather, at (x, y)) - double x2 = w*dx, - y2 = -w*dy; // y axis points to the bottom, hence minus - double x4 = h*dy, - y4 = h*dx; - double x3 = x4 + x2, - y3 = y4 + y2; - - // calc max and min - wxCoord maxX = (wxCoord)(dmax(x2, dmax(x3, x4)) + 0.5), - maxY = (wxCoord)(dmax(y2, dmax(y3, y4)) + 0.5), - minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5), - minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5); - - - wxImage image = src.ConvertToImage(); - - image.ConvertColourToAlpha( m_textForegroundColour.Red(), - m_textForegroundColour.Green(), - m_textForegroundColour.Blue() ); - image = image.Rotate( rad, wxPoint(0,0) ); - - int i_angle = (int) angle; - i_angle = i_angle % 360; - if (i_angle < 0) - i_angle += 360; - int xoffset = 0; - if ((i_angle >= 90.0) && (i_angle < 270.0)) - xoffset = image.GetWidth(); - int yoffset = 0; - if ((i_angle >= 0.0) && (i_angle < 180.0)) - yoffset = image.GetHeight(); - - if ((i_angle >= 0) && (i_angle < 90)) - yoffset -= (int)( cos(rad)*h ); - if ((i_angle >= 90) && (i_angle < 180)) - xoffset -= (int)( sin(rad)*h ); - if ((i_angle >= 180) && (i_angle < 270)) - yoffset -= (int)( cos(rad)*h ); - if ((i_angle >= 270) && (i_angle < 360)) - xoffset -= (int)( sin(rad)*h ); - - int i_x = x - xoffset; - int i_y = y - yoffset; - - src = image; - DoDrawBitmap( src, i_x, i_y, true ); - - - // it would be better to draw with non underlined font and draw the line - // manually here (it would be more straight...) -#if 0 - if ( m_font.GetUnderlined() ) - { - gdk_draw_line( m_gdkwindow, m_textGC, - XLOG2DEV(x + x4), YLOG2DEV(y + y4 + font->descent), - XLOG2DEV(x + x3), YLOG2DEV(y + y3 + font->descent)); - } -#endif // 0 - - // update the bounding box - CalcBoundingBox(x + minX, y + minY); - CalcBoundingBox(x + maxX, y + maxY); -#else // !wxUSE_IMAGE - wxUnusedVar(text); - wxUnusedVar(x); - wxUnusedVar(y); - wxUnusedVar(angle); -#endif // wxUSE_IMAGE/!wxUSE_IMAGE + // actually apply unscaled font + pango_layout_set_font_description( m_layout, m_fontdesc ); } + + CalcBoundingBox(x+minX, y+minY); + CalcBoundingBox(x+maxX, y+maxY); } void wxWindowDCImpl::DoGetTextExtent(const wxString &string, @@ -1690,100 +1533,27 @@ void wxWindowDCImpl::DoGetTextExtent(const wxString &string, wxCoord *descent, wxCoord *externalLeading, const wxFont *theFont) const { - if ( width ) - *width = 0; - if ( height ) - *height = 0; - if ( descent ) - *descent = 0; - if ( externalLeading ) - *externalLeading = 0; - - if (string.empty()) - return; - - // ensure that theFont is always non-NULL + // ensure we work with a valid font + const wxFont *fontToUse; if ( !theFont || !theFont->IsOk() ) - theFont = &m_font; - - // and use it if it's valid - if ( theFont->IsOk() ) - { - pango_layout_set_font_description - ( - m_layout, - theFont->GetNativeFontInfo()->description - ); - } - - // Set layout's text - const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(string, *theFont); - if ( !dataUTF8 ) - { - // hardly ideal, but what else can we do if conversion failed? - return; - } - - pango_layout_set_text(m_layout, dataUTF8, -1); + fontToUse = &m_font; + else + fontToUse = theFont; - int h; - pango_layout_get_pixel_size(m_layout, width, &h); - if (descent) - { - PangoLayoutIter *iter = pango_layout_get_iter(m_layout); - int baseline = pango_layout_iter_get_baseline(iter); - pango_layout_iter_free(iter); - *descent = h - PANGO_PIXELS(baseline); - } - if (height) - *height = h; + wxCHECK_RET( fontToUse->IsOk(), wxT("invalid font") ); - // Reset old font description - if (theFont->IsOk()) - pango_layout_set_font_description( m_layout, m_fontdesc ); + wxTextMeasure txm(GetOwner(), fontToUse); + txm.GetTextExtent(string, width, height, descent, externalLeading); } bool wxWindowDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const { - const size_t len = text.length(); - widths.Empty(); - widths.Add(0, len); - - if (text.empty()) - return true; + wxCHECK_MSG( m_font.IsOk(), false, wxT("Invalid font") ); - // Set layout's text - const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(text, m_font); - if ( !dataUTF8 ) - { - // hardly ideal, but what else can we do if conversion failed? - wxLogLastError(wxT("DoGetPartialTextExtents")); - return false; - } - - pango_layout_set_text(m_layout, dataUTF8, -1); - - // Calculate the position of each character based on the widths of - // the previous characters - - // Code borrowed from Scintilla's PlatGTK - PangoLayoutIter *iter = pango_layout_get_iter(m_layout); - PangoRectangle pos; - pango_layout_iter_get_cluster_extents(iter, NULL, &pos); - size_t i = 0; - while (pango_layout_iter_next_cluster(iter)) - { - pango_layout_iter_get_cluster_extents(iter, NULL, &pos); - int position = PANGO_PIXELS(pos.x); - widths[i++] = position; - } - while (i < len) - widths[i++] = PANGO_PIXELS(pos.x + pos.width); - pango_layout_iter_free(iter); - - return true; + wxTextMeasure txm(GetOwner(), &m_font); + return txm.GetPartialTextExtents(text, widths, m_scaleX); } @@ -2304,7 +2074,6 @@ int wxWindowDCImpl::GetDepth() const return gdk_drawable_get_depth(m_gdkwindow); } - //----------------------------------------------------------------------------- // wxClientDCImpl //-----------------------------------------------------------------------------