X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8e69bf8e84762ff09c68b3167a02aa321f7e6e74..05e0b047d879cdbfade7f2ab346c0acdf3e29f96:/src/gtk/dcclient.cpp diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp index d610de176b..4e480712b6 100644 --- a/src/gtk/dcclient.cpp +++ b/src/gtk/dcclient.cpp @@ -1366,7 +1366,7 @@ void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y ) wxCHECK_RET( m_layout, wxT("no Pango layout") ); wxCHECK_RET( m_fontdesc, wxT("no Pango font description") ); - gdk_pango_context_set_colormap( m_context, m_cmap ); + gdk_pango_context_set_colormap( m_context, m_cmap ); // not needed in gtk+ >= 2.6 bool underlined = m_font.IsOk() && m_font.GetUnderlined(); @@ -1436,31 +1436,30 @@ void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y ) const bool isScaled = fabs(m_scaleY - 1.0) > 0.00001; if (isScaled) { - // If there is a user or actually any scale applied to - // the device context, scale the font. + // If there is a user or actually any scale applied to + // the device context, scale the font. - // scale font description + // 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); - if (m_backgroundMode == wxBRUSHSTYLE_SOLID) - { - gdk_gc_set_foreground(m_textGC, m_textBackgroundColour.GetColor()); - gdk_draw_rectangle(m_gdkwindow, m_textGC, true, x, y, w, h); - gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor()); - } // Draw layout. int x_rtl = x; if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft) x_rtl -= w; - gdk_draw_layout(m_gdkwindow, m_textGC, x_rtl, y, m_layout); + + const GdkColor* bg_col = NULL; + if (m_backgroundMode == wxBRUSHSTYLE_SOLID) + bg_col = m_textBackgroundColour.GetColor(); + + gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x_rtl, y, m_layout, NULL, bg_col); if (isScaled) { @@ -1480,19 +1479,106 @@ void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y ) CalcBoundingBox(x, y); } - -// TODO: There is an example of rotating text with GTK2 that would probably be -// a better approach here: -// http://www.daa.com.au/pipermail/pygtk/2003-April/005052.html - +// TODO: When GTK2.6 is required, merge DoDrawText and DoDrawRotatedText to +// avoid code duplication void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle ) { -#if wxUSE_IMAGE if (!m_gdkwindow || text.empty()) return; 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); + + 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); + } + + 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)); + + // 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); + + 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); + + if (isScaled) + { + // reset unscaled size + pango_font_description_set_size( m_fontdesc, oldSize ); + + // actually apply unscaled font + pango_layout_set_font_description( m_layout, m_fontdesc ); + } + + CalcBoundingBox(x+minX, y+minY); + CalcBoundingBox(x+maxX, y+maxY); + } + else +#endif //__WXGTK26__ + { +#if wxUSE_IMAGE if ( wxIsNullDouble(angle) ) { DoDrawText(text, x, y); @@ -1592,6 +1678,7 @@ void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord wxUnusedVar(y); wxUnusedVar(angle); #endif // wxUSE_IMAGE/!wxUSE_IMAGE + } } void wxWindowDCImpl::DoGetTextExtent(const wxString &string,