AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity

render: Move border rendering into its own file

Browse Source 
gtkrenderborder.c now contains the implementation for
  gtk_css_style_render_border
  gtk_css_style_render_outline
This commit is contained in:
Benjamin Otte 2015-01-17 18:15:19 +01:00
parent 5ec97f6144
commit 8b6d419e02
3 changed files with 505 additions and 484 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

473
gtk/gtkrender.c
View File

@ -533,404 +533,6 @@ gtk_render_background (GtkStyleContext *context,
cairo_restore (cr);
}
static void
hide_border_sides (double border[4],
GtkBorderStyle border_style[4],
guint hidden_side)
{
guint i;
for (i = 0; i < 4; i++)
{
if (hidden_side & (1 << i) ||
border_style[i] == GTK_BORDER_STYLE_NONE ||
border_style[i] == GTK_BORDER_STYLE_HIDDEN)
border[i] = 0;
}
}
static void
render_frame_fill (cairo_t *cr,
GtkRoundedBox *border_box,
const double border_width[4],
GdkRGBA colors[4],
guint hidden_side)
{
GtkRoundedBox padding_box;
guint i, j;
padding_box = *border_box;
_gtk_rounded_box_shrink (&padding_box,
border_width[GTK_CSS_TOP],
border_width[GTK_CSS_RIGHT],
border_width[GTK_CSS_BOTTOM],
border_width[GTK_CSS_LEFT]);
if (hidden_side == 0 &&
gdk_rgba_equal (&colors[0], &colors[1]) &&
gdk_rgba_equal (&colors[0], &colors[2]) &&
gdk_rgba_equal (&colors[0], &colors[3]))
{
gdk_cairo_set_source_rgba (cr, &colors[0]);
_gtk_rounded_box_path (border_box, cr);
_gtk_rounded_box_path (&padding_box, cr);
cairo_fill (cr);
}
else
{
for (i = 0; i < 4; i++)
{
if (hidden_side & (1 << i))
continue;
for (j = 0; j < 4; j++)
{
if (hidden_side & (1 << j))
continue;
if (i == j ||
(gdk_rgba_equal (&colors[i], &colors[j])))
{
/* We were already painted when i == j */
if (i > j)
break;
if (j == 0)
_gtk_rounded_box_path_top (border_box, &padding_box, cr);
else if (j == 1)
_gtk_rounded_box_path_right (border_box, &padding_box, cr);
else if (j == 2)
_gtk_rounded_box_path_bottom (border_box, &padding_box, cr);
else if (j == 3)
_gtk_rounded_box_path_left (border_box, &padding_box, cr);
}
}
/* We were already painted when i == j */
if (i > j)
continue;
gdk_cairo_set_source_rgba (cr, &colors[i]);
cairo_fill (cr);
}
}
}
static void
set_stroke_style (cairo_t *cr,
double line_width,
GtkBorderStyle style,
double length)
{
double segments[2];
double n;
cairo_set_line_width (cr, line_width);
if (style == GTK_BORDER_STYLE_DOTTED)
{
n = round (0.5 * length / line_width);
segments[0] = 0;
segments[1] = n ? length / n : 2;
cairo_set_dash (cr, segments, G_N_ELEMENTS (segments), 0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
}
else
{
n = length / line_width;
/* Optimize the common case of an integer-sized rectangle
* Again, we care about focus rectangles.
*/
if (n == nearbyint (n))
{
segments[0] = 1;
segments[1] = 2;
}
else
{
n = round ((1. / 3) * n);
segments[0] = n ? (1. / 3) * length / n : 1;
segments[1] = 2 * segments[0];
}
cairo_set_dash (cr, segments, G_N_ELEMENTS (segments), 0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
}
}
static void
render_frame_stroke (cairo_t *cr,
GtkRoundedBox *border_box,
const double border_width[4],
GdkRGBA colors[4],
guint hidden_side,
GtkBorderStyle stroke_style)
{
gboolean different_colors, different_borders;
GtkRoundedBox stroke_box;
guint i;
different_colors = !gdk_rgba_equal (&colors[0], &colors[1]) ||
!gdk_rgba_equal (&colors[0], &colors[2]) ||
!gdk_rgba_equal (&colors[0], &colors[3]);
different_borders = border_width[0] != border_width[1] ||
border_width[0] != border_width[2] ||
border_width[0] != border_width[3] ;
stroke_box = *border_box;
_gtk_rounded_box_shrink (&stroke_box,
border_width[GTK_CSS_TOP] / 2.0,
border_width[GTK_CSS_RIGHT] / 2.0,
border_width[GTK_CSS_BOTTOM] / 2.0,
border_width[GTK_CSS_LEFT] / 2.0);
if (!different_colors && !different_borders && hidden_side == 0)
{
double length = 0;
/* FAST PATH:
* Mostly expected to trigger for focus rectangles */
for (i = 0; i < 4; i++)
{
length += _gtk_rounded_box_guess_length (&stroke_box, i);
_gtk_rounded_box_path_side (&stroke_box, cr, i);
}
gdk_cairo_set_source_rgba (cr, &colors[0]);
set_stroke_style (cr, border_width[0], stroke_style, length);
cairo_stroke (cr);
}
else
{
GtkRoundedBox padding_box;
padding_box = *border_box;
_gtk_rounded_box_path (&padding_box, cr);
_gtk_rounded_box_shrink (&padding_box,
border_width[GTK_CSS_TOP],
border_width[GTK_CSS_RIGHT],
border_width[GTK_CSS_BOTTOM],
border_width[GTK_CSS_LEFT]);
for (i = 0; i < 4; i++)
{
if (hidden_side & (1 << i))
continue;
cairo_save (cr);
if (i == 0)
_gtk_rounded_box_path_top (border_box, &padding_box, cr);
else if (i == 1)
_gtk_rounded_box_path_right (border_box, &padding_box, cr);
else if (i == 2)
_gtk_rounded_box_path_bottom (border_box, &padding_box, cr);
else if (i == 3)
_gtk_rounded_box_path_left (border_box, &padding_box, cr);
cairo_clip (cr);
_gtk_rounded_box_path_side (&stroke_box, cr, i);
gdk_cairo_set_source_rgba (cr, &colors[i]);
set_stroke_style (cr,
border_width[i],
stroke_style,
_gtk_rounded_box_guess_length (&stroke_box, i));
cairo_stroke (cr);
cairo_restore (cr);
}
}
}
static void
render_border (cairo_t *cr,
GtkRoundedBox *border_box,
const double border_width[4],
guint hidden_side,
GdkRGBA colors[4],
GtkBorderStyle border_style[4])
{
guint i, j;
cairo_save (cr);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
for (i = 0; i < 4; i++)
{
if (hidden_side & (1 << i))
continue;
/* NB: code below divides by this value */
/* a border smaller than this will not noticably modify
* pixels on screen, and since we don't compare with 0,
* we'll use this value */
if (border_width[i] < 1.0 / 1024)
continue;
switch (border_style[i])
{
case GTK_BORDER_STYLE_NONE:
case GTK_BORDER_STYLE_HIDDEN:
case GTK_BORDER_STYLE_SOLID:
break;
case GTK_BORDER_STYLE_INSET:
if (i == 1 || i == 2)
color_shade (&colors[i], 1.8, &colors[i]);
break;
case GTK_BORDER_STYLE_OUTSET:
if (i == 0 || i == 3)
color_shade (&colors[i], 1.8, &colors[i]);
break;
case GTK_BORDER_STYLE_DOTTED:
case GTK_BORDER_STYLE_DASHED:
{
guint dont_draw = hidden_side;
for (j = 0; j < 4; j++)
{
if (border_style[j] == border_style[i])
hidden_side |= (1 << j);
else
dont_draw |= (1 << j);
}
render_frame_stroke (cr, border_box, border_width, colors, dont_draw, border_style[i]);
}
break;
case GTK_BORDER_STYLE_DOUBLE:
{
GtkRoundedBox other_box;
double other_border[4];
guint dont_draw = hidden_side;
for (j = 0; j < 4; j++)
{
if (border_style[j] == GTK_BORDER_STYLE_DOUBLE)
hidden_side |= (1 << j);
else
dont_draw |= (1 << j);
other_border[i] = border_width[i] / 3;
}
render_frame_fill (cr, border_box, other_border, colors, dont_draw);
other_box = *border_box;
_gtk_rounded_box_shrink (&other_box,
2 * other_border[GTK_CSS_TOP],
2 * other_border[GTK_CSS_RIGHT],
2 * other_border[GTK_CSS_BOTTOM],
2 * other_border[GTK_CSS_LEFT]);
render_frame_fill (cr, &other_box, other_border, colors, dont_draw);
}
break;
case GTK_BORDER_STYLE_GROOVE:
case GTK_BORDER_STYLE_RIDGE:
{
GtkRoundedBox other_box;
GdkRGBA other_colors[4];
guint dont_draw = hidden_side;
double other_border[4];
for (j = 0; j < 4; j++)
{
other_colors[j] = colors[j];
if ((j == 0 || j == 3) ^ (border_style[j] == GTK_BORDER_STYLE_RIDGE))
color_shade (&other_colors[j], 1.8, &other_colors[j]);
else
color_shade (&colors[j], 1.8, &colors[j]);
if (border_style[j] == GTK_BORDER_STYLE_GROOVE ||
border_style[j] == GTK_BORDER_STYLE_RIDGE)
hidden_side |= (1 << j);
else
dont_draw |= (1 << j);
other_border[i] = border_width[i] / 2;
}
render_frame_fill (cr, border_box, other_border, colors, dont_draw);
other_box = *border_box;
_gtk_rounded_box_shrink (&other_box,
other_border[GTK_CSS_TOP],
other_border[GTK_CSS_RIGHT],
other_border[GTK_CSS_BOTTOM],
other_border[GTK_CSS_LEFT]);
render_frame_fill (cr, &other_box, other_border, other_colors, dont_draw);
}
break;
default:
g_assert_not_reached ();
break;
}
}
render_frame_fill (cr, border_box, border_width, colors, hidden_side);
cairo_restore (cr);
}
static void
gtk_css_style_render_frame (GtkCssStyle *style,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
guint hidden_side,
GtkJunctionSides junction)
{
GtkBorderImage border_image;
double border_width[4];
border_width[0] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_WIDTH), 100);
border_width[1] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_WIDTH), 100);
border_width[2] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_WIDTH), 100);
border_width[3] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_WIDTH), 100);
if (_gtk_border_image_init (&border_image, style))
{
_gtk_border_image_render (&border_image, border_width, cr, x, y, width, height);
}
else
{
GtkBorderStyle border_style[4];
GtkRoundedBox border_box;
GdkRGBA colors[4];
/* Optimize the most common case of "This widget has no border" */
if (border_width[0] == 0 &&
border_width[1] == 0 &&
border_width[2] == 0 &&
border_width[3] == 0)
return;
border_style[0] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_STYLE));
border_style[1] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_STYLE));
border_style[2] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_STYLE));
border_style[3] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_STYLE));
hide_border_sides (border_width, border_style, hidden_side);
colors[0] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_COLOR));
colors[1] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_COLOR));
colors[2] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_COLOR));
colors[3] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_COLOR));
_gtk_rounded_box_init_rect (&border_box, x, y, width, height);
_gtk_rounded_box_apply_border_radius_for_style (&border_box, style, junction);
render_border (cr, &border_box, border_width, hidden_side, colors, border_style);
}
}
/**
* gtk_render_frame:
* @context: a #GtkStyleContext
@ -966,11 +568,11 @@ gtk_render_frame (GtkStyleContext *context,
cairo_save (cr);
cairo_new_path (cr);
gtk_css_style_render_frame (gtk_style_context_lookup_style (context),
cr,
x, y, width, height,
0,
gtk_style_context_get_junction_sides (context));
gtk_css_style_render_border (gtk_style_context_lookup_style (context),
cr,
x, y, width, height,
0,
gtk_style_context_get_junction_sides (context));
cairo_restore (cr);
@ -1128,43 +730,6 @@ gtk_render_expander (GtkStyleContext *context,
cairo_restore (cr);
}
static void
gtk_css_style_render_focus (GtkCssStyle *style,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
GtkBorderStyle border_style[4];
GtkRoundedBox border_box;
double border_width[4];
GdkRGBA colors[4];
border_style[0] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_STYLE));
if (border_style[0] != GTK_BORDER_STYLE_NONE)
{
int offset;
border_style[1] = border_style[2] = border_style[3] = border_style[0];
border_width[0] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_WIDTH), 100);
border_width[3] = border_width[2] = border_width[1] = border_width[0];
colors[0] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_COLOR));
colors[3] = colors[2] = colors[1] = colors[0];
offset = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_OFFSET), 100);
_gtk_rounded_box_init_rect (&border_box, x, y, width, height);
_gtk_rounded_box_shrink (&border_box,
- border_width[GTK_CSS_TOP] - offset,
- border_width[GTK_CSS_RIGHT] - offset,
- border_width[GTK_CSS_LEFT] - offset,
- border_width[GTK_CSS_BOTTOM] - offset);
_gtk_rounded_box_apply_outline_radius_for_style (&border_box, style, GTK_JUNCTION_NONE);
render_border (cr, &border_box, border_width, 0, colors, border_style);
}
}
/**
* gtk_render_focus:
* @context: a #GtkStyleContext
@ -1199,9 +764,9 @@ gtk_render_focus (GtkStyleContext *context,
cairo_save (cr);
cairo_new_path (cr);
gtk_css_style_render_focus (gtk_style_context_lookup_style (context),
cr,
x, y, width, height);
gtk_css_style_render_outline (gtk_style_context_lookup_style (context),
cr,
x, y, width, height);
cairo_restore (cr);
}
@ -1362,11 +927,11 @@ gtk_do_render_slider (GtkStyleContext *context,
cr,
x, y, width, height,
junction);
gtk_css_style_render_frame (style,
cr,
x, y, width, height,
0,
junction);
gtk_css_style_render_border (style,
cr,
x, y, width, height,
0,
junction);
}
/**
@ -1505,9 +1070,9 @@ gtk_css_style_render_frame_gap (GtkCssStyle *style,
cairo_rectangle (cr, x0, yc + hc, x1 - x0, y1 - (yc + hc));
cairo_clip (cr);
gtk_css_style_render_frame (style, cr,
x, y, width, height,
0, junction);
gtk_css_style_render_border (style, cr,
x, y, width, height,
0, junction);
cairo_restore (cr);
}
@ -1611,9 +1176,9 @@ gtk_css_style_render_extension (GtkCssStyle *style,
width, height,
junction);
gtk_css_style_render_frame (style, cr,
x, y, width, height,
hidden_side, junction);
gtk_css_style_render_border (style, cr,
x, y, width, height,
hidden_side, junction);
}
/**

482
gtk/gtkrenderborder.c
View File

@ -27,19 +27,33 @@
#include <math.h>
#include "gtkcssbordervalueprivate.h"
#include "gtkcssenumvalueprivate.h"
#include "gtkcssimagevalueprivate.h"
#include "gtkcssnumbervalueprivate.h"
#include "gtkcssrepeatvalueprivate.h"
#include "gtkcssrgbavalueprivate.h"
#include "gtkcssstyleprivate.h"
#include "gtkhslaprivate.h"
#include "gtkroundedboxprivate.h"
/* this is in case round() is not provided by the compiler,
* such as in the case of C89 compilers, like MSVC
*/
#include "fallback-c89.c"
gboolean
_gtk_border_image_init (GtkBorderImage *image,
GtkCssStyle *style)
typedef struct _GtkBorderImage GtkBorderImage;
struct _GtkBorderImage {
GtkCssImage *source;
GtkCssValue *slice;
GtkCssValue *width;
GtkCssValue *repeat;
};
static gboolean
gtk_border_image_init (GtkBorderImage *image,
GtkCssStyle *style)
{
image->source = _gtk_css_image_value_get_image (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_IMAGE_SOURCE));
if (image->source == NULL)
@ -234,13 +248,13 @@ gtk_border_image_compute_slice_size (GtkBorderImageSliceSize sizes[3],
}
void
_gtk_border_image_render (GtkBorderImage *image,
const double border_width[4],
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
gtk_border_image_render (GtkBorderImage *image,
const double border_width[4],
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
cairo_surface_t *surface, *slice;
GtkBorderImageSliceSize vertical_slice[3], horizontal_slice[3];
@ -320,3 +334,451 @@ _gtk_border_image_render (GtkBorderImage *image,
cairo_surface_destroy (surface);
}
static void
hide_border_sides (double border[4],
GtkBorderStyle border_style[4],
guint hidden_side)
{
guint i;
for (i = 0; i < 4; i++)
{
if (hidden_side & (1 << i) ||
border_style[i] == GTK_BORDER_STYLE_NONE ||
border_style[i] == GTK_BORDER_STYLE_HIDDEN)
border[i] = 0;
}
}
static void
render_frame_fill (cairo_t *cr,
GtkRoundedBox *border_box,
const double border_width[4],
GdkRGBA colors[4],
guint hidden_side)
{
GtkRoundedBox padding_box;
guint i, j;
padding_box = *border_box;
_gtk_rounded_box_shrink (&padding_box,
border_width[GTK_CSS_TOP],
border_width[GTK_CSS_RIGHT],
border_width[GTK_CSS_BOTTOM],
border_width[GTK_CSS_LEFT]);
if (hidden_side == 0 &&
gdk_rgba_equal (&colors[0], &colors[1]) &&
gdk_rgba_equal (&colors[0], &colors[2]) &&
gdk_rgba_equal (&colors[0], &colors[3]))
{
gdk_cairo_set_source_rgba (cr, &colors[0]);
_gtk_rounded_box_path (border_box, cr);
_gtk_rounded_box_path (&padding_box, cr);
cairo_fill (cr);
}
else
{
for (i = 0; i < 4; i++)
{
if (hidden_side & (1 << i))
continue;
for (j = 0; j < 4; j++)
{
if (hidden_side & (1 << j))
continue;
if (i == j ||
(gdk_rgba_equal (&colors[i], &colors[j])))
{
/* We were already painted when i == j */
if (i > j)
break;
if (j == 0)
_gtk_rounded_box_path_top (border_box, &padding_box, cr);
else if (j == 1)
_gtk_rounded_box_path_right (border_box, &padding_box, cr);
else if (j == 2)
_gtk_rounded_box_path_bottom (border_box, &padding_box, cr);
else if (j == 3)
_gtk_rounded_box_path_left (border_box, &padding_box, cr);
}
}
/* We were already painted when i == j */
if (i > j)
continue;
gdk_cairo_set_source_rgba (cr, &colors[i]);
cairo_fill (cr);
}
}
}
static void
set_stroke_style (cairo_t *cr,
double line_width,
GtkBorderStyle style,
double length)
{
double segments[2];
double n;
cairo_set_line_width (cr, line_width);
if (style == GTK_BORDER_STYLE_DOTTED)
{
n = round (0.5 * length / line_width);
segments[0] = 0;
segments[1] = n ? length / n : 2;
cairo_set_dash (cr, segments, G_N_ELEMENTS (segments), 0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
}
else
{
n = length / line_width;
/* Optimize the common case of an integer-sized rectangle
* Again, we care about focus rectangles.
*/
if (n == nearbyint (n))
{
segments[0] = 1;
segments[1] = 2;
}
else
{
n = round ((1. / 3) * n);
segments[0] = n ? (1. / 3) * length / n : 1;
segments[1] = 2 * segments[0];
}
cairo_set_dash (cr, segments, G_N_ELEMENTS (segments), 0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
}
}
static void
render_frame_stroke (cairo_t *cr,
GtkRoundedBox *border_box,
const double border_width[4],
GdkRGBA colors[4],
guint hidden_side,
GtkBorderStyle stroke_style)
{
gboolean different_colors, different_borders;
GtkRoundedBox stroke_box;
guint i;
different_colors = !gdk_rgba_equal (&colors[0], &colors[1]) ||
!gdk_rgba_equal (&colors[0], &colors[2]) ||
!gdk_rgba_equal (&colors[0], &colors[3]);
different_borders = border_width[0] != border_width[1] ||
border_width[0] != border_width[2] ||
border_width[0] != border_width[3] ;
stroke_box = *border_box;
_gtk_rounded_box_shrink (&stroke_box,
border_width[GTK_CSS_TOP] / 2.0,
border_width[GTK_CSS_RIGHT] / 2.0,
border_width[GTK_CSS_BOTTOM] / 2.0,
border_width[GTK_CSS_LEFT] / 2.0);
if (!different_colors && !different_borders && hidden_side == 0)
{
double length = 0;
/* FAST PATH:
* Mostly expected to trigger for focus rectangles */
for (i = 0; i < 4; i++)
{
length += _gtk_rounded_box_guess_length (&stroke_box, i);
_gtk_rounded_box_path_side (&stroke_box, cr, i);
}
gdk_cairo_set_source_rgba (cr, &colors[0]);
set_stroke_style (cr, border_width[0], stroke_style, length);
cairo_stroke (cr);
}
else
{
GtkRoundedBox padding_box;
padding_box = *border_box;
_gtk_rounded_box_path (&padding_box, cr);
_gtk_rounded_box_shrink (&padding_box,
border_width[GTK_CSS_TOP],
border_width[GTK_CSS_RIGHT],
border_width[GTK_CSS_BOTTOM],
border_width[GTK_CSS_LEFT]);
for (i = 0; i < 4; i++)
{
if (hidden_side & (1 << i))
continue;
cairo_save (cr);
if (i == 0)
_gtk_rounded_box_path_top (border_box, &padding_box, cr);
else if (i == 1)
_gtk_rounded_box_path_right (border_box, &padding_box, cr);
else if (i == 2)
_gtk_rounded_box_path_bottom (border_box, &padding_box, cr);
else if (i == 3)
_gtk_rounded_box_path_left (border_box, &padding_box, cr);
cairo_clip (cr);
_gtk_rounded_box_path_side (&stroke_box, cr, i);
gdk_cairo_set_source_rgba (cr, &colors[i]);
set_stroke_style (cr,
border_width[i],
stroke_style,
_gtk_rounded_box_guess_length (&stroke_box, i));
cairo_stroke (cr);
cairo_restore (cr);
}
}
}
static void
color_shade (const GdkRGBA *color,
gdouble factor,
GdkRGBA *color_return)
{
GtkHSLA hsla;
_gtk_hsla_init_from_rgba (&hsla, color);
_gtk_hsla_shade (&hsla, &hsla, factor);
_gdk_rgba_init_from_hsla (color_return, &hsla);
}
static void
render_border (cairo_t *cr,
GtkRoundedBox *border_box,
const double border_width[4],
guint hidden_side,
GdkRGBA colors[4],
GtkBorderStyle border_style[4])
{
guint i, j;
cairo_save (cr);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
for (i = 0; i < 4; i++)
{
if (hidden_side & (1 << i))
continue;
/* NB: code below divides by this value */
/* a border smaller than this will not noticably modify
* pixels on screen, and since we don't compare with 0,
* we'll use this value */
if (border_width[i] < 1.0 / 1024)
continue;
switch (border_style[i])
{
case GTK_BORDER_STYLE_NONE:
case GTK_BORDER_STYLE_HIDDEN:
case GTK_BORDER_STYLE_SOLID:
break;
case GTK_BORDER_STYLE_INSET:
if (i == 1 || i == 2)
color_shade (&colors[i], 1.8, &colors[i]);
break;
case GTK_BORDER_STYLE_OUTSET:
if (i == 0 || i == 3)
color_shade (&colors[i], 1.8, &colors[i]);
break;
case GTK_BORDER_STYLE_DOTTED:
case GTK_BORDER_STYLE_DASHED:
{
guint dont_draw = hidden_side;
for (j = 0; j < 4; j++)
{
if (border_style[j] == border_style[i])
hidden_side |= (1 << j);
else
dont_draw |= (1 << j);
}
render_frame_stroke (cr, border_box, border_width, colors, dont_draw, border_style[i]);
}
break;
case GTK_BORDER_STYLE_DOUBLE:
{
GtkRoundedBox other_box;
double other_border[4];
guint dont_draw = hidden_side;
for (j = 0; j < 4; j++)
{
if (border_style[j] == GTK_BORDER_STYLE_DOUBLE)
hidden_side |= (1 << j);
else
dont_draw |= (1 << j);
other_border[i] = border_width[i] / 3;
}
render_frame_fill (cr, border_box, other_border, colors, dont_draw);
other_box = *border_box;
_gtk_rounded_box_shrink (&other_box,
2 * other_border[GTK_CSS_TOP],
2 * other_border[GTK_CSS_RIGHT],
2 * other_border[GTK_CSS_BOTTOM],
2 * other_border[GTK_CSS_LEFT]);
render_frame_fill (cr, &other_box, other_border, colors, dont_draw);
}
break;
case GTK_BORDER_STYLE_GROOVE:
case GTK_BORDER_STYLE_RIDGE:
{
GtkRoundedBox other_box;
GdkRGBA other_colors[4];
guint dont_draw = hidden_side;
double other_border[4];
for (j = 0; j < 4; j++)
{
other_colors[j] = colors[j];
if ((j == 0 || j == 3) ^ (border_style[j] == GTK_BORDER_STYLE_RIDGE))
color_shade (&other_colors[j], 1.8, &other_colors[j]);
else
color_shade (&colors[j], 1.8, &colors[j]);
if (border_style[j] == GTK_BORDER_STYLE_GROOVE ||
border_style[j] == GTK_BORDER_STYLE_RIDGE)
hidden_side |= (1 << j);
else
dont_draw |= (1 << j);
other_border[i] = border_width[i] / 2;
}
render_frame_fill (cr, border_box, other_border, colors, dont_draw);
other_box = *border_box;
_gtk_rounded_box_shrink (&other_box,
other_border[GTK_CSS_TOP],
other_border[GTK_CSS_RIGHT],
other_border[GTK_CSS_BOTTOM],
other_border[GTK_CSS_LEFT]);
render_frame_fill (cr, &other_box, other_border, other_colors, dont_draw);
}
break;
default:
g_assert_not_reached ();
break;
}
}
render_frame_fill (cr, border_box, border_width, colors, hidden_side);
cairo_restore (cr);
}
void
gtk_css_style_render_border (GtkCssStyle *style,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
guint hidden_side,
GtkJunctionSides junction)
{
GtkBorderImage border_image;
double border_width[4];
border_width[0] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_WIDTH), 100);
border_width[1] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_WIDTH), 100);
border_width[2] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_WIDTH), 100);
border_width[3] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_WIDTH), 100);
if (gtk_border_image_init (&border_image, style))
{
gtk_border_image_render (&border_image, border_width, cr, x, y, width, height);
}
else
{
GtkBorderStyle border_style[4];
GtkRoundedBox border_box;
GdkRGBA colors[4];
/* Optimize the most common case of "This widget has no border" */
if (border_width[0] == 0 &&
border_width[1] == 0 &&
border_width[2] == 0 &&
border_width[3] == 0)
return;
border_style[0] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_STYLE));
border_style[1] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_STYLE));
border_style[2] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_STYLE));
border_style[3] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_STYLE));
hide_border_sides (border_width, border_style, hidden_side);
colors[0] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_COLOR));
colors[1] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_COLOR));
colors[2] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_COLOR));
colors[3] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_COLOR));
_gtk_rounded_box_init_rect (&border_box, x, y, width, height);
_gtk_rounded_box_apply_border_radius_for_style (&border_box, style, junction);
render_border (cr, &border_box, border_width, hidden_side, colors, border_style);
}
}
void
gtk_css_style_render_outline (GtkCssStyle *style,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
GtkBorderStyle border_style[4];
GtkRoundedBox border_box;
double border_width[4];
GdkRGBA colors[4];
border_style[0] = _gtk_css_border_style_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_STYLE));
if (border_style[0] != GTK_BORDER_STYLE_NONE)
{
int offset;
border_style[1] = border_style[2] = border_style[3] = border_style[0];
border_width[0] = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_WIDTH), 100);
border_width[3] = border_width[2] = border_width[1] = border_width[0];
colors[0] = *_gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_COLOR));
colors[3] = colors[2] = colors[1] = colors[0];
offset = _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_OFFSET), 100);
_gtk_rounded_box_init_rect (&border_box, x, y, width, height);
_gtk_rounded_box_shrink (&border_box,
- border_width[GTK_CSS_TOP] - offset,
- border_width[GTK_CSS_RIGHT] - offset,
- border_width[GTK_CSS_LEFT] - offset,
- border_width[GTK_CSS_BOTTOM] - offset);
_gtk_rounded_box_apply_outline_radius_for_style (&border_box, style, GTK_JUNCTION_NONE);
render_border (cr, &border_box, border_width, 0, colors, border_style);
}
}

34
gtk/gtkrenderborderprivate.h
View File

@ -28,26 +28,20 @@
G_BEGIN_DECLS
typedef struct _GtkBorderImage GtkBorderImage;
struct _GtkBorderImage {
GtkCssImage *source;
GtkCssValue *slice;
GtkCssValue *width;
GtkCssValue *repeat;
};
gboolean _gtk_border_image_init (GtkBorderImage *image,
GtkCssStyle *style);
void _gtk_border_image_render (GtkBorderImage *image,
const double border_width[4],
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
void gtk_css_style_render_border (GtkCssStyle *style,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
guint hidden_side,
GtkJunctionSides junction);
void gtk_css_style_render_outline (GtkCssStyle *style,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
G_END_DECLS