mirror of
https://github.com/netsurf-browser/netsurf
synced 2025-02-27 03:44:23 +03:00
[project @ 2006-03-26 21:53:20 by dsilvers]
Re-tabify, add (currently disabled) cairo support and font family/variant support to font_pango.c svn path=/import/netsurf/; revision=2186
This commit is contained in:
Daniel Silverstone
parent
4750aa968f
commit
f81dfb186a
118
gtk/font_pango.c
118
gtk/font_pango.c
@ -1,7 +1,7 @@
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/*
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* This file is part of NetSurf, http://netsurf.sourceforge.net/
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* Licensed under the GNU General Public License,
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* http://www.opensource.org/licenses/gpl-license
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* http://www.opensource.org/licenses/gpl-license
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* Copyright 2005 James Bursa <bursa@users.sourceforge.net>
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*/
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@ -22,6 +22,8 @@
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#include "netsurf/utils/utils.h"
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#include "netsurf/utils/log.h"
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/* Until we can consider the descenders etc, we need to not render using cairo */
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#undef CAIRO_VERSION
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static PangoFontDescription *nsfont_style_to_description(
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const struct css_style *style);
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@ -31,7 +33,7 @@ static PangoFontDescription *nsfont_style_to_description(
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* Measure the width of a string.
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*
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* \param style css_style for this text, with style->font_size.size ==
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* CSS_FONT_SIZE_LENGTH
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* CSS_FONT_SIZE_LENGTH
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* \param string UTF-8 string to measure
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* \param length length of string
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* \param width updated to width of string[0..length)
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@ -70,13 +72,13 @@ bool nsfont_width(const struct css_style *style,
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/**
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* Find the position in a string where an x coordinate falls.
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*
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* \param style css_style for this text, with style->font_size.size ==
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* CSS_FONT_SIZE_LENGTH
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* \param string UTF-8 string to measure
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* \param length length of string
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* \param x x coordinate to search for
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* \param char_offset updated to offset in string of actual_x, [0..length]
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* \param actual_x updated to x coordinate of character closest to x
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* \param style css_style for this text, with style->font_size.size ==
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* CSS_FONT_SIZE_LENGTH
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* \param string UTF-8 string to measure
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* \param length length of string
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* \param x x coordinate to search for
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* \param char_offset updated to offset in string of actual_x, [0..length]
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* \param actual_x updated to x coordinate of character closest to x
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* \return true on success, false on error and error reported
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*/
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@ -113,18 +115,18 @@ bool nsfont_position_in_string(const struct css_style *style,
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/**
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* Find where to split a string to make it fit a width.
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*
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* \param style css_style for this text, with style->font_size.size ==
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* CSS_FONT_SIZE_LENGTH
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* \param string UTF-8 string to measure
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* \param length length of string
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* \param x width available
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* \param char_offset updated to offset in string of actual_x, [0..length]
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* \param actual_x updated to x coordinate of character closest to x
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* \param style css_style for this text, with style->font_size.size ==
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* CSS_FONT_SIZE_LENGTH
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* \param string UTF-8 string to measure
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* \param length length of string
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* \param x width available
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* \param char_offset updated to offset in string of actual_x, [0..length]
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* \param actual_x updated to x coordinate of character closest to x
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* \return true on success, false on error and error reported
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*
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* On exit, [char_offset == 0 ||
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* string[char_offset] == ' ' ||
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* char_offset == length]
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* string[char_offset] == ' ' ||
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* char_offset == length]
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*/
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bool nsfont_split(const struct css_style *style,
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@ -167,12 +169,12 @@ bool nsfont_split(const struct css_style *style,
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* Render a string.
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*
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* \param style css_style for this text, with style->font_size.size ==
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* CSS_FONT_SIZE_LENGTH
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* CSS_FONT_SIZE_LENGTH
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* \param string UTF-8 string to measure
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* \param length length of string
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* \param x x coordinate
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* \param y y coordinate
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* \param c colour for text
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* \param x x coordinate
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* \param y y coordinate
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* \param c colour for text
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* \return true on success, false on error and error reported
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*/
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@ -181,15 +183,18 @@ bool nsfont_paint(const struct css_style *style,
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int x, int y, colour c)
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{
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PangoFontDescription *desc;
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PangoContext *context;
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PangoLayout *layout;
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PangoLayoutLine *line;
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gint size;
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#ifdef CAIRO_VERSION
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int width, height;
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#else
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PangoLayoutLine *line;
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PangoContext *context;
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GdkColor colour = { 0,
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((c & 0xff) << 8) | (c & 0xff),
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(c & 0xff00) | (c & 0xff00 >> 8),
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((c & 0xff0000) >> 8) | (c & 0xff0000 >> 16) };
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#endif
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if (length == 0)
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return true;
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@ -200,17 +205,30 @@ bool nsfont_paint(const struct css_style *style,
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pango_font_description_set_absolute_size(desc, size);
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else
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pango_font_description_set_size(desc, size);
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#ifdef CAIRO_VERSION
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layout = pango_cairo_create_layout(current_cr);
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#else
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context = gdk_pango_context_get();
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layout = pango_layout_new(context);
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#endif
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pango_layout_set_font_description(layout, desc);
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pango_layout_set_text(layout, string, length);
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#ifdef CAIRO_VERSION
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pango_layout_get_pixel_size(layout, &width, &height);
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cairo_move_to(current_cr, x, y - height);
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nsgtk_set_colour(c);
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pango_cairo_show_layout(current_cr, layout);
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#else
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line = pango_layout_get_line(layout, 0);
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gdk_draw_layout_line_with_colors(current_drawable, current_gc,
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x, y, line, &colour, 0);
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g_object_unref(layout);
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g_object_unref(context);
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#endif
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g_object_unref(layout);
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pango_font_description_free(desc);
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return true;
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@ -220,8 +238,8 @@ bool nsfont_paint(const struct css_style *style,
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/**
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* Convert a css_style to a PangoFontDescription.
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*
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* \param style css_style for this text, with style->font_size.size ==
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* CSS_FONT_SIZE_LENGTH
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* \param style css_style for this text, with style->font_size.size ==
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* CSS_FONT_SIZE_LENGTH
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* \return a new Pango font description
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*/
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@ -234,6 +252,9 @@ PangoFontDescription *nsfont_style_to_description(
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PangoStyle styl = PANGO_STYLE_NORMAL;
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assert(style->font_size.size == CSS_FONT_SIZE_LENGTH);
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desc = pango_font_description_new();
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if (style->font_size.value.length.unit == CSS_UNIT_PX)
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size = style->font_size.value.length.value * PANGO_SCALE;
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else
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@ -250,6 +271,8 @@ PangoFontDescription *nsfont_style_to_description(
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break;
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}
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pango_font_description_set_style(desc, styl);
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switch (style->font_weight) {
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case CSS_FONT_WEIGHT_NORMAL:
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weight = PANGO_WEIGHT_NORMAL; break;
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@ -267,14 +290,41 @@ PangoFontDescription *nsfont_style_to_description(
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default: break;
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}
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desc = pango_font_description_new();
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pango_font_description_set_weight(desc, weight);
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if (style->font_size.value.length.unit == CSS_UNIT_PX)
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pango_font_description_set_absolute_size(desc, size);
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else
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pango_font_description_set_size(desc, size);
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pango_font_description_set_family_static(desc, "Sans");
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pango_font_description_set_weight(desc, weight);
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pango_font_description_set_style(desc, styl);
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switch (style->font_family) {
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case CSS_FONT_FAMILY_SERIF:
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pango_font_description_set_family_static(desc, "Serif");
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break;
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case CSS_FONT_FAMILY_MONOSPACE:
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pango_font_description_set_family_static(desc, "Monospace");
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break;
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case CSS_FONT_FAMILY_CURSIVE:
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pango_font_description_set_family_static(desc, "Cursive");
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break;
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case CSS_FONT_FAMILY_FANTASY:
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pango_font_description_set_family_static(desc, "Fantasy");
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break;
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case CSS_FONT_FAMILY_SANS_SERIF:
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default:
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pango_font_description_set_family_static(desc, "Sans");
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break;
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}
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switch (style->font_variant) {
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case CSS_FONT_VARIANT_SMALL_CAPS:
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LOG(("Small caps!"));
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pango_font_description_set_variant(desc, PANGO_VARIANT_SMALL_CAPS);
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break;
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case CSS_FONT_VARIANT_NORMAL:
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default:
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pango_font_description_set_variant(desc, PANGO_VARIANT_NORMAL);
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}
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return desc;
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}
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