#include "wx/gtk/private.h"
#include "wx/gtk/private/object.h"
+#include "wx/private/textmeasure.h"
//-----------------------------------------------------------------------------
// local defines
wxTEXT_SCREEN,
wxBG_SCREEN,
wxPEN_SCREEN,
- wxBRUSH_SCREEN
+ wxBRUSH_SCREEN,
+ wxTEXT_COLOUR_ALPHA,
+ wxBG_COLOUR_ALPHA,
+ wxPEN_COLOUR_ALPHA,
+ wxBRUSH_COLOUR_ALPHA
};
struct wxGC
wxCHECK_RET(widget, "DC needs a widget");
m_gdkwindow = widget->window;
- if (GTK_WIDGET_NO_WINDOW(widget))
+ if (!gtk_widget_get_has_window(widget))
SetDeviceLocalOrigin(widget->allocation.x, widget->allocation.y);
}
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 );
// 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;
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;
// 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);
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,
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);
}
return gdk_drawable_get_depth(m_gdkwindow);
}
-
//-----------------------------------------------------------------------------
// wxClientDCImpl
//-----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff