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themingengine: Add support for the border-radii

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This commit is contained in:
Benjamin Otte 2011-05-26 05:09:48 +02:00
parent 90ff426396
commit 91602cca6e
1 changed files with 194 additions and 79 deletions
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273
gtk/gtkthemingengine.c
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@ -30,6 +30,7 @@
#include "gtk9slice.h"
#include "gtkpango.h"
#include "gtkshadowprivate.h"
#include "gtkcsstypesprivate.h"
/**
* SECTION:gtkthemingengine
@ -1364,117 +1365,168 @@ color_shade (const GdkRGBA *color,
}
static void
_cairo_round_rectangle_sides (cairo_t *cr,
gdouble radius,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
guint sides,
GtkJunctionSides junction)
_cairo_ellipsis (cairo_t *cr,
double xc, double yc,
double xradius, double yradius,
double angle1, double angle2)
{
radius = CLAMP (radius, 0, MIN (width / 2, height / 2));
if (xradius <= 0.0 || yradius <= 0.0)
{
/* stolen from cairo sources */
cairo_line_to (cr, xc, yc); /* might become a move_to */
cairo_line_to (cr, xc, yc);
return;
}
cairo_save (cr);
cairo_translate (cr, xc, yc);
cairo_scale (cr, xradius, yradius);
cairo_arc (cr, 0, 0, 1.0, angle1, angle2);
cairo_restore (cr);
}
static void
_cairo_round_rectangle_sides (cairo_t *cr,
const GtkCssBorderRadius *border_radius,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
guint sides,
GtkJunctionSides junction)
{
if (sides & SIDE_RIGHT)
{
if (radius == 0 ||
(junction & GTK_JUNCTION_CORNER_TOPRIGHT))
if (junction & GTK_JUNCTION_CORNER_TOPRIGHT)
cairo_move_to (cr, x + width, y);
else
{
cairo_new_sub_path (cr);
cairo_arc (cr, x + width - radius, y + radius, radius, - G_PI / 4, 0);
_cairo_ellipsis (cr,
x + width - border_radius->top_right.horizontal,
y + border_radius->top_right.vertical,
border_radius->top_right.horizontal,
border_radius->top_right.vertical,
- G_PI / 4, 0);
}
if (radius == 0 ||
(junction & GTK_JUNCTION_CORNER_BOTTOMRIGHT))
if ((junction & GTK_JUNCTION_CORNER_BOTTOMRIGHT))
cairo_line_to (cr, x + width, y + height);
else
cairo_arc (cr, x + width - radius, y + height - radius, radius, 0, G_PI / 4);
_cairo_ellipsis (cr,
x + width - border_radius->bottom_right.horizontal,
y + height - border_radius->bottom_right.vertical,
border_radius->bottom_right.horizontal,
border_radius->bottom_right.vertical,
0, G_PI / 4);
}
if (sides & SIDE_BOTTOM)
{
if (radius != 0 &&
! (junction & GTK_JUNCTION_CORNER_BOTTOMRIGHT))
if (! (junction & GTK_JUNCTION_CORNER_BOTTOMRIGHT))
{
if ((sides & SIDE_RIGHT) == 0)
cairo_new_sub_path (cr);
cairo_arc (cr, x + width - radius, y + height - radius, radius, G_PI / 4, G_PI / 2);
_cairo_ellipsis (cr,
x + width - border_radius->bottom_right.horizontal,
y + height - border_radius->bottom_right.vertical,
border_radius->bottom_right.horizontal,
border_radius->bottom_right.vertical,
G_PI / 4, G_PI / 2);
}
else if ((sides & SIDE_RIGHT) == 0)
cairo_move_to (cr, x + width, y + height);
if (radius == 0 ||
(junction & GTK_JUNCTION_CORNER_BOTTOMLEFT))
if ((junction & GTK_JUNCTION_CORNER_BOTTOMLEFT))
cairo_line_to (cr, x, y + height);
else
cairo_arc (cr, x + radius, y + height - radius, radius, G_PI / 2, 3 * (G_PI / 4));
_cairo_ellipsis (cr,
x + border_radius->bottom_left.horizontal,
y + height - border_radius->bottom_left.vertical,
border_radius->bottom_left.horizontal,
border_radius->bottom_left.vertical,
G_PI / 2, 3 * (G_PI / 4));
}
else
cairo_move_to (cr, x, y + height);
if (sides & SIDE_LEFT)
{
if (radius != 0 &&
! (junction & GTK_JUNCTION_CORNER_BOTTOMLEFT))
if (! (junction & GTK_JUNCTION_CORNER_BOTTOMLEFT))
{
if ((sides & SIDE_BOTTOM) == 0)
cairo_new_sub_path (cr);
cairo_arc (cr, x + radius, y + height - radius, radius, 3 * (G_PI / 4), G_PI);
_cairo_ellipsis (cr,
x + border_radius->bottom_left.horizontal,
y + height - border_radius->bottom_left.vertical,
border_radius->bottom_left.horizontal,
border_radius->bottom_left.vertical,
3 * (G_PI / 4), G_PI);
}
else if ((sides & SIDE_BOTTOM) == 0)
cairo_move_to (cr, x, y + height);
if (radius == 0 ||
(junction & GTK_JUNCTION_CORNER_TOPLEFT))
if ((junction & GTK_JUNCTION_CORNER_TOPLEFT))
cairo_line_to (cr, x, y);
else
cairo_arc (cr, x + radius, y + radius, radius, G_PI, G_PI + G_PI / 4);
_cairo_ellipsis (cr,
x + border_radius->top_left.horizontal,
y + border_radius->top_left.vertical,
border_radius->top_left.horizontal,
border_radius->top_left.vertical,
G_PI, G_PI + G_PI / 4);
}
if (sides & SIDE_TOP)
{
if (radius != 0 &&
! (junction & GTK_JUNCTION_CORNER_TOPLEFT))
if (! (junction & GTK_JUNCTION_CORNER_TOPLEFT))
{
if ((sides & SIDE_LEFT) == 0)
cairo_new_sub_path (cr);
cairo_arc (cr, x + radius, y + radius, radius, 5 * (G_PI / 4), 3 * (G_PI / 2));
_cairo_ellipsis (cr,
x + border_radius->top_left.horizontal,
y + border_radius->top_left.vertical,
border_radius->top_left.horizontal,
border_radius->top_left.vertical,
5 * (G_PI / 4), 3 * (G_PI / 2));
}
else if ((sides & SIDE_LEFT) == 0)
cairo_move_to (cr, x, y);
if (radius == 0 ||
(junction & GTK_JUNCTION_CORNER_TOPRIGHT))
if ((junction & GTK_JUNCTION_CORNER_TOPRIGHT))
cairo_line_to (cr, x + width, y);
else
cairo_arc (cr, x + width - radius, y + radius, radius, 3 * (G_PI / 2), - G_PI / 4);
}
_cairo_ellipsis (cr,
x + width - border_radius->top_right.horizontal,
y + border_radius->top_right.vertical,
border_radius->top_right.horizontal,
border_radius->top_right.vertical,
3 * (G_PI / 2), - G_PI / 4);
}
}
static void
_cairo_uneven_frame (cairo_t *cr,
gdouble radius,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkBorder *border,
GtkJunctionSides junction)
_cairo_uneven_frame (cairo_t *cr,
const GtkCssBorderRadius *border_radius,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkBorder *border,
GtkJunctionSides junction)
{
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_line_width (cr, 1);
_cairo_round_rectangle_sides (cr, (gdouble) radius,
_cairo_round_rectangle_sides (cr, border_radius,
x, y,
width, height,
SIDE_ALL, junction);
_cairo_round_rectangle_sides (cr, (gdouble) radius,
_cairo_round_rectangle_sides (cr, border_radius,
x + border->left,
y + border->top,
width - border->left - border->right,
@ -1523,7 +1575,10 @@ render_background_internal (GtkThemingEngine *engine,
gboolean running;
gdouble progress, alpha = 1;
GtkBorder border;
gint radius, border_width;
GtkCssBorderCornerRadius *top_left_radius, *top_right_radius;
GtkCssBorderCornerRadius *bottom_left_radius, *bottom_right_radius;
GtkCssBorderRadius border_radius = { { 0, }, };
gint border_width;
GtkBorderStyle border_style;
gdouble mat_w, mat_h;
cairo_matrix_t identity;
@ -1541,10 +1596,28 @@ render_background_internal (GtkThemingEngine *engine,
gtk_theming_engine_get (engine, flags,
"background-image", &pattern,
"border-radius", &radius,
/* Can't use border-radius as it's an int for
* backwards compat */
"border-top-left-radius", &top_left_radius,
"border-top-right-radius", &top_right_radius,
"border-bottom-right-radius", &bottom_right_radius,
"border-bottom-left-radius", &bottom_left_radius,
"border-style", &border_style,
NULL);
if (top_left_radius)
border_radius.top_left = *top_left_radius;
g_free (top_left_radius);
if (top_right_radius)
border_radius.top_right = *top_right_radius;
g_free (top_right_radius);
if (bottom_right_radius)
border_radius.bottom_right = *bottom_right_radius;
g_free (bottom_right_radius);
if (bottom_left_radius)
border_radius.bottom_left = *bottom_left_radius;
g_free (bottom_left_radius);
border_width = MIN (MIN (border.top, border.bottom),
MIN (border.left, border.right));
@ -1670,7 +1743,7 @@ render_background_internal (GtkThemingEngine *engine,
/* Different pattern types, or different color
* stop counts, alpha blend both patterns.
*/
_cairo_round_rectangle_sides (cr, (gdouble) radius,
_cairo_round_rectangle_sides (cr, &border_radius,
0, 0, width, height,
SIDE_ALL, junction);
@ -1755,7 +1828,7 @@ render_background_internal (GtkThemingEngine *engine,
cairo_pattern_destroy (other_pattern);
}
_cairo_round_rectangle_sides (cr, (gdouble) radius,
_cairo_round_rectangle_sides (cr, &border_radius,
0, 0, width, height,
SIDE_ALL, junction);
if (pattern)
@ -1786,7 +1859,7 @@ render_background_internal (GtkThemingEngine *engine,
else
{
cairo_save (cr);
_cairo_round_rectangle_sides (cr, (gdouble) radius,
_cairo_round_rectangle_sides (cr, &border_radius,
0, 0, width, height,
SIDE_ALL, junction);
cairo_clip (cr);
@ -1858,7 +1931,10 @@ render_frame_internal (GtkThemingEngine *engine,
GdkRGBA lighter;
GdkRGBA border_color;
GtkBorderStyle border_style;
gint border_width, radius;
gint border_width;
GtkCssBorderCornerRadius *top_left_radius, *top_right_radius;
GtkCssBorderCornerRadius *bottom_left_radius, *bottom_right_radius;
GtkCssBorderRadius border_radius = { { 0, }, };
gdouble progress, d1, d2, m;
gboolean running;
GtkBorder border;
@ -1871,9 +1947,27 @@ render_frame_internal (GtkThemingEngine *engine,
gtk_theming_engine_get (engine, state,
"border-style", &border_style,
"border-radius", &radius,
/* Can't use border-radius as it's an int for
* backwards compat */
"border-top-left-radius", &top_left_radius,
"border-top-right-radius", &top_right_radius,
"border-bottom-right-radius", &bottom_right_radius,
"border-bottom-left-radius", &bottom_left_radius,
NULL);
if (top_left_radius)
border_radius.top_left = *top_left_radius;
g_free (top_left_radius);
if (top_right_radius)
border_radius.top_right = *top_right_radius;
g_free (top_right_radius);
if (bottom_right_radius)
border_radius.bottom_right = *bottom_right_radius;
g_free (bottom_right_radius);
if (bottom_left_radius)
border_radius.bottom_left = *bottom_left_radius;
g_free (bottom_left_radius);
running = gtk_theming_engine_state_is_running (engine, GTK_STATE_PRELIGHT, &progress);
border_width = MIN (MIN (border.top, border.bottom),
MIN (border.left, border.right));
@ -1933,7 +2027,7 @@ render_frame_internal (GtkThemingEngine *engine,
height -= 1;
}
_cairo_round_rectangle_sides (cr, (gdouble) radius,
_cairo_round_rectangle_sides (cr, &border_radius,
x, y, width, height,
SIDE_ALL & ~(hidden_side),
junction);
@ -1942,7 +2036,7 @@ render_frame_internal (GtkThemingEngine *engine,
else
{
cairo_save (cr);
_cairo_uneven_frame (cr, (gdouble) radius,
_cairo_uneven_frame (cr, &border_radius,
x, y, width, height,
&border, junction);
cairo_fill (cr);
@ -1953,11 +2047,7 @@ render_frame_internal (GtkThemingEngine *engine,
case GTK_BORDER_STYLE_INSET:
case GTK_BORDER_STYLE_OUTSET:
cairo_set_line_width (cr, border_width);
if (radius == 0)
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
else
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
if (border_width > 1)
{
@ -1982,7 +2072,7 @@ render_frame_internal (GtkThemingEngine *engine,
else
gdk_cairo_set_source_rgba (cr, &border_color);
_cairo_round_rectangle_sides (cr, (gdouble) radius,
_cairo_round_rectangle_sides (cr, &border_radius,
x + d1, y + d1,
width - d2, height - d2,
(SIDE_BOTTOM | SIDE_RIGHT) & ~(hidden_side),
@ -1994,7 +2084,7 @@ render_frame_internal (GtkThemingEngine *engine,
else
gdk_cairo_set_source_rgba (cr, &lighter);
_cairo_round_rectangle_sides (cr, (gdouble) radius,
_cairo_round_rectangle_sides (cr, &border_radius,
x + d1, y + d1,
width - d2, height - d2,
(SIDE_TOP | SIDE_LEFT) & ~(hidden_side),
@ -2011,7 +2101,7 @@ render_frame_internal (GtkThemingEngine *engine,
else
gdk_cairo_set_source_rgba (cr, &border_color);
_cairo_uneven_frame (cr, (gdouble) radius,
_cairo_uneven_frame (cr, &border_radius,
x, y, width, height,
&border, junction);
cairo_fill (cr);
@ -2019,9 +2109,15 @@ render_frame_internal (GtkThemingEngine *engine,
/* Top/left */
cairo_move_to (cr, x, y);
cairo_line_to (cr, x + width, y);
cairo_line_to (cr, x + width - border.right - radius / 2, y + border.top + radius / 2);
cairo_line_to (cr, x + width - border.right - radius / 2, y + height - border.bottom - radius / 2);
cairo_line_to (cr, x + border.left + radius / 2, y + height - border.bottom - radius / 2);
cairo_line_to (cr,
x + width - border.right - border_radius.top_right.horizontal / 2,
y + border.top + border_radius.top_right.vertical / 2);
cairo_line_to (cr,
x + width - border.right - border_radius.bottom_right.horizontal / 2,
y + height - border.bottom - border_radius.bottom_right.vertical / 2);
cairo_line_to (cr,
x + border.left + border_radius.bottom_left.horizontal / 2,
y + height - border.bottom - border_radius.bottom_left.vertical / 2);
cairo_line_to (cr, x, y + height);
cairo_close_path (cr);
@ -2032,7 +2128,7 @@ render_frame_internal (GtkThemingEngine *engine,
else
gdk_cairo_set_source_rgba (cr, &lighter);
_cairo_uneven_frame (cr, (gdouble) radius,
_cairo_uneven_frame (cr, &border_radius,
x, y, width, height,
&border, junction);
cairo_fill (cr);
@ -2054,14 +2150,12 @@ render_frame_internal (GtkThemingEngine *engine,
cairo_set_line_width (cr, 1);
if (radius == 0 ||
(junction & GTK_JUNCTION_CORNER_TOPRIGHT) != 0)
if ((junction & GTK_JUNCTION_CORNER_TOPRIGHT) != 0)
_cairo_corner_triangle (cr,
x + width - border_width, y,
border_width);
if (radius == 0 ||
(junction & GTK_JUNCTION_CORNER_BOTTOMLEFT) != 0)
if ((junction & GTK_JUNCTION_CORNER_BOTTOMLEFT) != 0)
_cairo_corner_triangle (cr,
x, y + height - border_width,
border_width);
@ -2493,7 +2587,10 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
{
GtkJunctionSides junction;
GtkStateFlags state;
gint border_width, radius;
gint border_width;
GtkCssBorderCornerRadius *top_left_radius, *top_right_radius;
GtkCssBorderCornerRadius *bottom_left_radius, *bottom_right_radius;
GtkCssBorderRadius border_radius = { { 0, }, };
gdouble x0, y0, x1, y1, xc, yc, wc, hc;
GtkBorder border;
@ -2503,9 +2600,27 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
gtk_theming_engine_get_border (engine, state, &border);
gtk_theming_engine_get (engine, state,
"border-radius", &radius,
/* Can't use border-radius as it's an int for
* backwards compat */
"border-top-left-radius", &top_left_radius,
"border-top-right-radius", &top_right_radius,
"border-bottom-right-radius", &bottom_right_radius,
"border-bottom-left-radius", &bottom_left_radius,
NULL);
if (top_left_radius)
border_radius.top_left = *top_left_radius;
g_free (top_left_radius);
if (top_right_radius)
border_radius.top_right = *top_right_radius;
g_free (top_right_radius);
if (bottom_right_radius)
border_radius.bottom_right = *bottom_right_radius;
g_free (bottom_right_radius);
if (bottom_left_radius)
border_radius.bottom_left = *bottom_left_radius;
g_free (bottom_left_radius);
border_width = MIN (MIN (border.top, border.bottom),
MIN (border.left, border.right));
@ -2519,10 +2634,10 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
wc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
hc = border_width;
if (xy0_gap < radius)
if (xy0_gap < border_radius.top_left.horizontal)
junction |= GTK_JUNCTION_CORNER_TOPLEFT;
if (xy1_gap > width - radius)
if (xy1_gap > width - border_radius.top_right.horizontal)
junction |= GTK_JUNCTION_CORNER_TOPRIGHT;
break;
case GTK_POS_BOTTOM:
@ -2531,10 +2646,10 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
wc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
hc = border_width;
if (xy0_gap < radius)
if (xy0_gap < border_radius.bottom_left.horizontal)
junction |= GTK_JUNCTION_CORNER_BOTTOMLEFT;
if (xy1_gap > width - radius)
if (xy1_gap > width - border_radius.bottom_right.horizontal)
junction |= GTK_JUNCTION_CORNER_BOTTOMRIGHT;
break;
@ -2544,10 +2659,10 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
wc = border_width;
hc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
if (xy0_gap < radius)
if (xy0_gap < border_radius.top_left.vertical)
junction |= GTK_JUNCTION_CORNER_TOPLEFT;
if (xy1_gap > height - radius)
if (xy1_gap > height - border_radius.bottom_left.vertical)
junction |= GTK_JUNCTION_CORNER_BOTTOMLEFT;
break;
@ -2557,10 +2672,10 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
wc = border_width;
hc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
if (xy0_gap < radius)
if (xy0_gap < border_radius.top_right.vertical)
junction |= GTK_JUNCTION_CORNER_TOPRIGHT;
if (xy1_gap > height - radius)
if (xy1_gap > height - border_radius.bottom_right.vertical)
junction |= GTK_JUNCTION_CORNER_BOTTOMRIGHT;
break;