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gtk3-tqt-engine
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gtk3-tqt-engine/tdegtk/tdegtk-draw.c

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Initial import of renamed Unico engine, ready for hacking!
12 years ago
/* The TdeGtk Theming Engine for Gtk+.
* Copyright (C) 2011 Canonical Ltd
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* Authored by Andrea Cimitan <andrea.cimitan@canonical.com>
*
*/
#include <cairo.h>
#include <gtk/gtk.h>
#include <math.h>
#include "tdegtk-cairo-support.h"
#include "tdegtk-draw.h"
#include "tdegtk-support.h"
#include "tdegtk-types.h"
/* draw a texture placed on the centroid */
static gboolean
draw_centroid_texture (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
GtkStateFlags state;
GValue value = { 0, };
cairo_pattern_t *texture = NULL;
cairo_surface_t *surface = NULL;
gboolean retval = FALSE;
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get_property (engine, "-tdegtk-centroid-texture", state, &value);
if (!G_VALUE_HOLDS_BOXED (&value))
return FALSE;
texture = g_value_dup_boxed (&value);
g_value_unset (&value);
if (texture != NULL)
cairo_pattern_get_surface (texture, &surface);
if (surface != NULL)
{
cairo_save (cr);
cairo_set_source_surface (cr, surface, (gint) (x + width / 2 - cairo_image_surface_get_width (surface) / 2),
(gint) (y + height / 2 - cairo_image_surface_get_height (surface) / 2));
cairo_paint (cr);
cairo_restore (cr);
retval = TRUE;
}
if (texture != NULL)
cairo_pattern_destroy (texture);
return retval;
}
static void
tdegtk_draw_activity (DRAW_ARGS)
{
/* playground for effects */
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
tdegtk_cairo_draw_frame (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
}
static void
tdegtk_draw_arrow (GtkThemingEngine *engine,
cairo_t *cr,
gdouble angle,
gdouble x,
gdouble y,
gdouble size)
{
GtkStateFlags state;
GdkRGBA color;
gdouble size_reduction = 2;
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get_color (engine, state, &color);
cairo_save (cr);
/* use floor function to adjust doubles */
y = floor (y);
x = floor (x);
size = floor (size);
size -= size_reduction;
cairo_translate (cr, size_reduction / 2, size_reduction / 2);
cairo_translate (cr, x + (gint) (size / 2.0) + 0.5, y + (gint) (size / 2.0) + 0.5);
cairo_rotate (cr, angle - G_PI_2);
cairo_translate (cr, (gint) (size / 4.0), 0);
/* FIXME this + 1/- 1 is done to fix blurred diagonal lines.
* I know it's not nice at all, but it fix a visual bug */
cairo_move_to (cr, - (gint) (size / 2.0), - (gint) (size / 2.0));
cairo_rel_line_to (cr, (gint) (size / 2.0) + 1, (gint) (size / 2.0));
cairo_rel_line_to (cr, - (gint) (size / 2.0) - 1, (gint) (size / 2.0));
cairo_close_path (cr);
cairo_set_source_rgba (cr, color.red, color.green, color.blue, color.alpha * 0.75);
cairo_fill_preserve (cr);
gdk_cairo_set_source_rgba (cr, &color);
cairo_stroke (cr);
cairo_restore (cr);
}
static void
tdegtk_draw_cell_background (DRAW_ARGS,
GtkRegionFlags flags)
{
GtkJunctionSides junction;
guint hidden_side;
junction = GTK_JUNCTION_RIGHT | GTK_JUNCTION_LEFT;
hidden_side = SIDE_RIGHT | SIDE_LEFT;
if ((flags & GTK_REGION_FIRST) != 0)
{
junction &= ~(GTK_JUNCTION_CORNER_TOPLEFT | GTK_JUNCTION_CORNER_BOTTOMLEFT);
hidden_side &= ~(SIDE_LEFT);
}
if ((flags & GTK_REGION_LAST) != 0)
{
junction &= ~(GTK_JUNCTION_CORNER_TOPRIGHT | GTK_JUNCTION_CORNER_BOTTOMRIGHT);
hidden_side &= ~(SIDE_RIGHT);
}
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
hidden_side, junction);
}
static void
tdegtk_draw_cell_frame (DRAW_ARGS,
GtkRegionFlags flags)
{
GtkJunctionSides junction;
guint hidden_side;
junction = GTK_JUNCTION_RIGHT | GTK_JUNCTION_LEFT;
hidden_side = SIDE_RIGHT | SIDE_LEFT;
if ((flags & GTK_REGION_FIRST) != 0)
{
junction &= ~(GTK_JUNCTION_CORNER_TOPLEFT | GTK_JUNCTION_CORNER_BOTTOMLEFT);
hidden_side &= ~(SIDE_LEFT);
}
if ((flags & GTK_REGION_LAST) != 0)
{
junction &= ~(GTK_JUNCTION_CORNER_TOPRIGHT | GTK_JUNCTION_CORNER_BOTTOMRIGHT);
hidden_side &= ~(SIDE_RIGHT);
}
tdegtk_cairo_draw_frame (engine, cr,
x, y, width, height,
hidden_side, junction);
}
static void
tdegtk_draw_check (DRAW_ARGS)
{
GtkStateFlags state;
gboolean in_menu;
gboolean draw_bullet, inconsistent;
state = gtk_theming_engine_get_state (engine);
in_menu = gtk_theming_engine_has_class (engine, GTK_STYLE_CLASS_MENUITEM);
inconsistent = (state & GTK_STATE_FLAG_INCONSISTENT) != 0;
draw_bullet = (state & GTK_STATE_FLAG_ACTIVE) != 0;
draw_bullet |= inconsistent;
if (!in_menu)
{
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
tdegtk_cairo_draw_frame (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
}
if (draw_bullet)
{
GdkRGBA *bullet_color;
gtk_theming_engine_get (engine, state,
"-tdegtk-bullet-color", &bullet_color,
NULL);
if (inconsistent)
{
cairo_save (cr);
cairo_set_line_width (cr, 2.0);
cairo_move_to (cr, 3, height / 2.0);
cairo_line_to (cr, width - 3, height / 2.0);
cairo_restore (cr);
}
else
{
cairo_translate (cr, x, y);
if (in_menu)
{
cairo_scale (cr, width / 18.0, height / 18.0);
cairo_translate (cr, 2.0, 3.0);
}
else
{
GdkRGBA *bullet_outline_color;
gtk_theming_engine_get (engine, state,
"-tdegtk-bullet-outline-color", &bullet_outline_color,
NULL);
cairo_scale (cr, width / 18.0, height / 18.0);
/* thick's outline */
cairo_move_to (cr, 5.0, 5.65);
cairo_line_to (cr, 8.95, 9.57);
cairo_line_to (cr, 16.0, 2.54);
cairo_line_to (cr, 16.0, 8.36);
cairo_line_to (cr, 10.6, 15.1);
cairo_line_to (cr, 7.6, 15.1);
cairo_line_to (cr, 2.95, 10.48);
cairo_line_to (cr, 2.95, 7.65);
cairo_close_path (cr);
gdk_cairo_set_source_rgba (cr, bullet_outline_color);
cairo_fill (cr);
cairo_translate (cr, 4.0, 2.0);
gdk_rgba_free (bullet_outline_color);
}
/* thick */
cairo_move_to (cr, 0.0, 6.0);
cairo_line_to (cr, 0.0, 8.0);
cairo_line_to (cr, 4.0, 12.0);
cairo_line_to (cr, 6.0, 12.0);
cairo_line_to (cr, 15.0, 1.0);
cairo_line_to (cr, 15.0, 0.0);
cairo_line_to (cr, 14.0, 0.0);
cairo_line_to (cr, 5.0, 9.0);
cairo_line_to (cr, 1.0, 5.0);
cairo_close_path (cr);
}
gdk_cairo_set_source_rgba (cr, bullet_color);
cairo_fill (cr);
gdk_rgba_free (bullet_color);
}
}
static void
tdegtk_draw_common (DRAW_ARGS)
{
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
tdegtk_cairo_draw_frame (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
}
static void
tdegtk_draw_common_background (DRAW_ARGS)
{
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
}
static void
tdegtk_draw_common_frame (DRAW_ARGS)
{
tdegtk_cairo_draw_frame (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
}
static void
tdegtk_draw_expander (DRAW_ARGS)
{
GtkStateFlags state;
GdkRGBA color;
gint size;
gdouble angle = G_PI_2;
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get_color (engine, state, &color);
cairo_save (cr);
/* use floor function to adjust doubles */
size = floor (MIN (width, height));
x += (gint) (width / 2) - size / 2;
y += (gint) (height / 2) - size / 2;
if ((state & GTK_STATE_FLAG_ACTIVE) == 0)
angle = 0;
cairo_translate (cr, x + size / 2.0 + 0.5, y + size / 2.0 + 0.5);
cairo_rotate (cr, angle);
cairo_translate (cr, size / 4.0, 0);
/* FIXME this + 1/- 1 is done to fix blurred diagonal lines.
* I know it's not nice at all, but it fix a visual bug */
cairo_move_to (cr, - size / 2.0, - size / 2.0);
cairo_rel_line_to (cr, size / 2.0 + 1, size / 2.0);
cairo_rel_line_to (cr, - size / 2.0 - 1, size / 2.0);
cairo_close_path (cr);
cairo_set_source_rgba (cr, color.red, color.green, color.blue, color.alpha * 0.75);
cairo_fill_preserve (cr);
gdk_cairo_set_source_rgba (cr, &color);
cairo_stroke (cr);
cairo_restore (cr);
}
static void
tdegtk_draw_extension (DRAW_ARGS,
GtkPositionType gap_side)
{
GtkBorder border;
GtkBorder *outer_border;
GtkJunctionSides junction = 0;
GtkStateFlags state;
gboolean has_outer_stroke = FALSE;
gdouble bg_offset = 0;
guint hidden_side = 0;
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get (engine, state,
"-tdegtk-outer-stroke-width", &outer_border,
NULL);
gtk_theming_engine_get_border (engine, state, &border);
if (!tdegtk_gtk_border_is_zero (outer_border))
has_outer_stroke = TRUE;
cairo_save (cr);
/* FIXME doesn't work properly with not homogenuos border-width,
* especially between tab and notebook.
* I guess the issue comes from the fact draw_background
* is looking at border dimensions while we're not,
* or we're doing it wrong.
* draw_background is looking at SIDE_BOTTOM and
* sets border to 0 for this side */
switch (gap_side)
{
case GTK_POS_TOP:
junction = GTK_JUNCTION_TOP;
hidden_side = SIDE_TOP;
if (has_outer_stroke)
{
y -= outer_border->bottom;
height += outer_border->bottom;
}
if ((state & GTK_STATE_FLAG_ACTIVE) != 0)
bg_offset = border.bottom;
cairo_translate (cr, x + width, y + height);
cairo_rotate (cr, G_PI);
break;
default:
case GTK_POS_BOTTOM:
junction = GTK_JUNCTION_BOTTOM;
hidden_side = SIDE_BOTTOM;
if (has_outer_stroke)
height += outer_border->top;
if ((state & GTK_STATE_FLAG_ACTIVE) != 0)
bg_offset = border.top;
cairo_translate (cr, x, y);
break;
case GTK_POS_LEFT:
junction = GTK_JUNCTION_LEFT;
hidden_side = SIDE_LEFT;
if (has_outer_stroke)
{
x -= outer_border->right;
width += outer_border->right;
}
if ((state & GTK_STATE_FLAG_ACTIVE) != 0)
bg_offset = border.right;
cairo_translate (cr, x + width, y);
cairo_rotate (cr, G_PI / 2);
break;
case GTK_POS_RIGHT:
junction = GTK_JUNCTION_RIGHT;
hidden_side = SIDE_RIGHT;
if (has_outer_stroke)
width += outer_border->left;
if ((state & GTK_STATE_FLAG_ACTIVE) != 0)
bg_offset = border.left;
cairo_translate (cr, x, y + height);
cairo_rotate (cr, - G_PI / 2);
break;
}
if (gap_side == GTK_POS_TOP ||
gap_side == GTK_POS_BOTTOM)
tdegtk_cairo_draw_background (engine, cr, 0, 0, width, height + bg_offset, SIDE_BOTTOM, GTK_JUNCTION_BOTTOM);
else
tdegtk_cairo_draw_background (engine, cr, 0, 0, height, width + bg_offset, SIDE_BOTTOM, GTK_JUNCTION_BOTTOM);
cairo_restore (cr);
/* FIXME the frame on bottom bar has the wrong gradient,
* while should be reflected */
tdegtk_cairo_draw_frame (engine, cr, x, y, width, height, hidden_side, junction);
gtk_border_free (outer_border);
}
static void
tdegtk_draw_focus (DRAW_ARGS)
{
GdkRGBA *fill_color, *border_color, *outer_stroke_color;
GtkStateFlags state;
gint focus_pad, line_width;
gint radius;
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get (engine, state,
"-tdegtk-focus-border-color", &border_color,
"-tdegtk-focus-border-radius", &radius,
"-tdegtk-focus-fill-color", &fill_color,
"-tdegtk-focus-outer-stroke-color", &outer_stroke_color,
NULL);
gtk_theming_engine_get_style (engine,
"focus-padding", &focus_pad,
"focus-line-width", &line_width,
NULL);
x += focus_pad;
y += focus_pad;
width -= focus_pad * 2;
height -= focus_pad * 2;
cairo_save (cr);
cairo_set_line_width (cr, line_width);
/* first layer, background */
tdegtk_cairo_round_rect (cr, x, y,
width, height,
radius, SIDE_ALL, GTK_JUNCTION_NONE);
gdk_cairo_set_source_rgba (cr, fill_color);
cairo_fill (cr);
/* second layer, outer stroke */
tdegtk_cairo_round_rect_inner (cr, x - line_width, y - line_width,
width + line_width * 2, height + line_width * 2,
radius + 1, SIDE_ALL, GTK_JUNCTION_NONE);
gdk_cairo_set_source_rgba (cr, outer_stroke_color);
cairo_stroke (cr);
/* third layer, border */
tdegtk_cairo_round_rect_inner (cr, x, y,
width, height,
radius, SIDE_ALL, GTK_JUNCTION_NONE);
gdk_cairo_set_source_rgba (cr, border_color);
cairo_stroke (cr);
cairo_restore (cr);
gdk_rgba_free (border_color);
gdk_rgba_free (fill_color);
gdk_rgba_free (outer_stroke_color);
}
static void
tdegtk_draw_frame_gap (DRAW_ARGS,
GtkPositionType gap_side,
gdouble xy0_gap,
gdouble xy1_gap)
{
GtkBorder border;
GtkBorder *outer_border;
GtkCssBorderCornerRadius *top_left_radius, *top_right_radius;
GtkCssBorderCornerRadius *bottom_left_radius, *bottom_right_radius;
GtkCssBorderRadius border_radius = { { 0, }, };
GtkJunctionSides junction;
GtkStateFlags state;
gboolean has_outer_stroke = FALSE;
gdouble x0, y0, x1, y1, xc, yc, wc, hc;
xc = yc = wc = hc = 0;
junction = gtk_theming_engine_get_junction_sides (engine);
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get (engine, state,
/* 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,
"-tdegtk-outer-stroke-width", &outer_border,
NULL);
gtk_theming_engine_get_border (engine, state, &border);
if (!tdegtk_gtk_border_is_zero (outer_border))
has_outer_stroke = TRUE;
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);
cairo_save (cr);
switch (gap_side)
{
case GTK_POS_TOP:
xc = x + xy0_gap + border.left;
yc = y;
wc = MAX (xy1_gap - xy0_gap - (border.left + border.right), 0);
hc = border.top * 2;
if (has_outer_stroke)
{
xc += outer_border->left;
wc = MAX (xy1_gap - xy0_gap - (outer_border->left + outer_border->right) - (border.left + border.right), 0);
hc += outer_border->top;
}
if (xy0_gap < border_radius.top_left.horizontal)
junction |= GTK_JUNCTION_CORNER_TOPLEFT;
if (xy1_gap > width - border_radius.top_right.horizontal)
junction |= GTK_JUNCTION_CORNER_TOPRIGHT;
break;
default:
case GTK_POS_BOTTOM:
xc = x + xy0_gap + border.left;
yc = y + height - border.bottom * 2;
wc = MAX (xy1_gap - xy0_gap - (border.left + border.right), 0);
hc = border.bottom * 2;
if (has_outer_stroke)
{
xc += outer_border->left;
yc -= outer_border->bottom;
wc = MAX (xy1_gap - xy0_gap - (outer_border->left + outer_border->right) - (border.left + border.right), 0);
hc += outer_border->bottom;
}
if (xy0_gap < border_radius.bottom_left.horizontal)
junction |= GTK_JUNCTION_CORNER_BOTTOMLEFT;
if (xy1_gap > width - border_radius.bottom_right.horizontal)
junction |= GTK_JUNCTION_CORNER_BOTTOMRIGHT;
break;
case GTK_POS_LEFT:
xc = x;
yc = y + xy0_gap + border.top;
wc = border.left * 2;
hc = MAX (xy1_gap - xy0_gap - (border.top + border.bottom), 0);
if (has_outer_stroke)
{
yc += outer_border->top;
wc += outer_border->left;
hc = MAX (xy1_gap - xy0_gap - (outer_border->top + outer_border->bottom) - (border.top + border.bottom), 0);
}
if (xy0_gap < border_radius.top_left.vertical)
junction |= GTK_JUNCTION_CORNER_TOPLEFT;
if (xy1_gap > height - border_radius.bottom_left.vertical)
junction |= GTK_JUNCTION_CORNER_BOTTOMLEFT;
break;
case GTK_POS_RIGHT:
xc = x + width - border.right * 2;
yc = y + xy0_gap + border.top;
wc = border.right * 2;
hc = MAX (xy1_gap - xy0_gap - (border.top + border.bottom), 0);
if (has_outer_stroke)
{
xc -= outer_border->right;
yc += outer_border->top;
wc += outer_border->right;
hc = MAX (xy1_gap - xy0_gap - (outer_border->top + outer_border->bottom) - (border.top + border.bottom), 0);
}
if (xy0_gap < border_radius.top_right.vertical)
junction |= GTK_JUNCTION_CORNER_TOPRIGHT;
if (xy1_gap > height - border_radius.bottom_right.vertical)
junction |= GTK_JUNCTION_CORNER_BOTTOMRIGHT;
break;
}
/* clip the gap */
cairo_clip_extents (cr, &x0, &y0, &x1, &y1);
cairo_rectangle (cr, x0, y0, x1 - x0, yc - y0);
cairo_rectangle (cr, x0, yc, xc - x0, hc);
cairo_rectangle (cr, xc + wc, yc, x1 - (xc + wc), hc);
cairo_rectangle (cr, x0, yc + hc, x1 - x0, y1 - (yc + hc));
cairo_clip (cr);
/* draw the frame, gap area will not be drawn */
tdegtk_cairo_draw_frame (engine, cr, x, y, width, height, 0, junction);
cairo_restore (cr);
gtk_border_free (outer_border);
}
static void
tdegtk_draw_grip (DRAW_ARGS)
{
GdkRGBA border_color;
GdkRGBA *inner_stroke_color;
GtkStateFlags state;
gint lx, ly;
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get (engine, state,
"-tdegtk-inner-stroke-color", &inner_stroke_color,
NULL);
gtk_theming_engine_get_border_color (engine, state, &border_color);
for (ly = 0; ly < 4; ly++)
{
/* vertically, four rows of dots */
for (lx = 0; lx <= ly; lx++)
{
/* horizontally */
int ny = (3.5 - ly) * 3;
int nx = lx * 3;
gdk_cairo_set_source_rgba (cr, inner_stroke_color);
cairo_rectangle (cr, x + width - nx - 1, y + height - ny - 1, 2, 2);
cairo_fill (cr);
gdk_cairo_set_source_rgba (cr, &border_color);
cairo_rectangle (cr, x + width - nx - 1, y + height - ny - 1, 1, 1);
cairo_fill (cr);
}
}
gdk_rgba_free (inner_stroke_color);
}
static void
tdegtk_draw_handle (DRAW_ARGS)
{
gdouble line_width;
gint i, bar_y, num_bars, bar_spacing, bar_width, bar_height;
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
if (draw_centroid_texture (engine, cr, x, y, width, height))
return;
tdegtk_get_line_width (engine, &line_width);
bar_y = 1;
num_bars = 3;
bar_spacing = 3;
bar_width = 3;
bar_height = num_bars * bar_spacing * line_width;
cairo_save (cr);
cairo_translate (cr, x + (gint) (width / 2), y + (gint) (height / 2));
if (height > width)
cairo_translate (cr, - bar_width / 2 - 0.5, - bar_height / 2 + 0.5);
else
{
cairo_translate (cr, - bar_height / 2 + 0.5, bar_width / 2 + 0.5);
cairo_rotate (cr, - G_PI / 2);
}
for (i = 0; i < num_bars; i++)
{
/* draw bars */
cairo_move_to (cr, 0, bar_y);
cairo_line_to (cr, bar_width, bar_y);
tdegtk_cairo_set_source_border (engine, cr, bar_width, 3);
cairo_stroke (cr);
cairo_move_to (cr, 0, bar_y + line_width);
cairo_line_to (cr, bar_width, bar_y + line_width);
tdegtk_cairo_set_source_inner_stroke (engine, cr, bar_width, line_width);
cairo_stroke (cr);
bar_y += bar_spacing;
}
cairo_restore (cr);
}
static void
tdegtk_draw_line (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x0,
gdouble y0,
gdouble x1,
gdouble y1)
{
/* line endings */
if (y0 == y1)
{
y0 += 0.5;
y1 += 0.5;
x0 += 0.5;
x1 -= 0.5;
}
else if (x0 == x1)
{
x0 += 0.5;
x1 += 0.5;
y0 += 0.5;
y1 -= 0.5;
}
cairo_move_to (cr, x0, y0);
cairo_line_to (cr, x1, y1);
tdegtk_cairo_set_source_border (engine, cr, MAX (x1 - x0, 1), MAX (y1 - y0, 1));
cairo_stroke (cr);
}
static void
tdegtk_draw_notebook (DRAW_ARGS,
GtkPositionType gap_side,
gdouble xy0_gap,
gdouble xy1_gap)
{
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
tdegtk_draw_frame_gap (engine, cr,
x, y, width, height,
gap_side, xy0_gap, xy1_gap);
}
static void
tdegtk_draw_radio (DRAW_ARGS)
{
GtkStateFlags state;
gboolean in_menu;
gboolean draw_bullet, inconsistent;
state = gtk_theming_engine_get_state (engine);
in_menu = gtk_theming_engine_has_class (engine, GTK_STYLE_CLASS_MENUITEM);
inconsistent = (state & GTK_STATE_FLAG_INCONSISTENT) != 0;
draw_bullet = (state & GTK_STATE_FLAG_ACTIVE) != 0;
draw_bullet |= inconsistent;
if (!in_menu)
{
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
tdegtk_cairo_draw_frame (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
}
if (draw_bullet)
{
GdkRGBA *bullet_color;
gtk_theming_engine_get (engine, state,
"-tdegtk-bullet-color", &bullet_color,
NULL);
if (inconsistent)
{
cairo_save (cr);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_width (cr, 2.0);
cairo_move_to(cr, 5, height / 2.0);
cairo_line_to(cr, width - 5, height / 2.0);
gdk_cairo_set_source_rgba (cr, bullet_color);
cairo_stroke (cr);
cairo_restore (cr);
}
else
{
if (in_menu)
cairo_arc (cr, x + width / 2.0, y + height / 2.0,
(width + height) / 4.0 - 4, 0, G_PI * 2);
else
{
GdkRGBA *bullet_outline_color;
gtk_theming_engine_get (engine, state,
"-tdegtk-bullet-outline-color", &bullet_outline_color,
NULL);
/* bullet's outline */
cairo_arc (cr, x + width / 2.0, y + height / 2.0,
(width + height) / 4.0 - 4, 0, G_PI * 2);
gdk_cairo_set_source_rgba (cr, bullet_outline_color);
cairo_fill (cr);
cairo_arc (cr, x + width / 2.0, y + height / 2.0,
(width + height) / 4.0 - 5, 0, G_PI * 2);
gdk_rgba_free (bullet_outline_color);
}
/* bullet */
gdk_cairo_set_source_rgba (cr, bullet_color);
cairo_fill (cr);
}
gdk_rgba_free (bullet_color);
}
}
static void
tdegtk_draw_separator (DRAW_ARGS)
{
gdouble line_width;
tdegtk_get_line_width (engine, &line_width);
if (line_width == 0)
return;
/* FIXME right code should be
* if (gtk_theming_engine_has_class (engine, GTK_STYLE_CLASS_VERTICAL))
* but doesn't work for separator tool item. */
if (width > height)
{
cairo_move_to (cr, x, y + (gint) (height / 2) + line_width / 2);
cairo_line_to (cr, x + width, y + (gint) (height / 2) + line_width / 2);
tdegtk_cairo_set_source_inner_stroke (engine, cr, width, line_width);
cairo_stroke (cr);
cairo_move_to (cr, x, y + (gint) (height / 2) - line_width / 2);
cairo_line_to (cr, x + width, y + (gint) (height / 2) - line_width / 2);
tdegtk_cairo_set_source_border (engine, cr, width, line_width);
cairo_stroke (cr);
}
else
{
cairo_move_to (cr, x + (gint) (width / 2) + line_width / 2, y);
cairo_line_to (cr, x + (gint) (width / 2) + line_width / 2, y + height);
tdegtk_cairo_set_source_inner_stroke (engine, cr, line_width, height);
cairo_stroke (cr);
cairo_move_to (cr, x + (gint) (width / 2) - line_width / 2, y);
cairo_line_to (cr, x + (gint) (width / 2) - line_width / 2, y + height);
tdegtk_cairo_set_source_border (engine, cr, line_width, height);
cairo_stroke (cr);
}
}
static void
tdegtk_draw_slider (DRAW_ARGS,
GtkOrientation orientation)
{
/* use orientation, if needed */
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
draw_centroid_texture (engine, cr, x, y, width, height);
tdegtk_cairo_draw_frame (engine, cr,
x, y, width, height,
0, gtk_theming_engine_get_junction_sides (engine));
}
static void
tdegtk_draw_spinbutton_background (DRAW_ARGS)
{
GtkBorder border, *outer_border;
GtkJunctionSides junction;
GtkStateFlags state;
junction = gtk_theming_engine_get_junction_sides (engine);
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get (engine, state,
"-tdegtk-outer-stroke-width", &outer_border,
NULL);
gtk_theming_engine_get_border (engine, state, &border);
cairo_save (cr);
cairo_rectangle (cr, x, y, width, height);
cairo_clip (cr);
if (!(junction & GTK_JUNCTION_CORNER_TOPRIGHT))
{
y = ceil (y);
height = floor (height);
height += border.bottom + outer_border->bottom;
}
else
{
y = floor (y);
height = ceil (height);
y -= outer_border->top;
height += outer_border->bottom;
}
tdegtk_cairo_draw_background (engine, cr,
x, y, width, height,
0, junction);
cairo_restore (cr);
gtk_border_free (outer_border);
}
static void
tdegtk_draw_spinbutton_frame (DRAW_ARGS)
{
GtkBorder border, *outer_border;
GtkJunctionSides junction;
GtkStateFlags state;
junction = gtk_theming_engine_get_junction_sides (engine);
state = gtk_theming_engine_get_state (engine);
gtk_theming_engine_get (engine, state,
"-tdegtk-outer-stroke-width", &outer_border,
NULL);
gtk_theming_engine_get_border (engine, state, &border);
cairo_save (cr);
cairo_rectangle (cr, x, y, width, height);
cairo_clip (cr);
if (!(junction & GTK_JUNCTION_CORNER_TOPRIGHT))
{
y = ceil (y);
height = floor (height);
height += border.bottom + outer_border->bottom;
}
else
{
y = floor (y);
height = ceil (height);
y -= outer_border->top;
height += outer_border->bottom;
}
tdegtk_cairo_draw_frame (engine, cr,
x, y, width, height,
0, junction);
cairo_restore (cr);
gtk_border_free (outer_border);
}
void
tdegtk_register_style_default (TdeGtkStyleFunctions *functions)
{
g_assert (functions);
functions->draw_activity = tdegtk_draw_activity;
functions->draw_arrow = tdegtk_draw_arrow;
functions->draw_cell_background = tdegtk_draw_cell_background;
functions->draw_cell_frame = tdegtk_draw_cell_frame;
functions->draw_check = tdegtk_draw_check;
functions->draw_common = tdegtk_draw_common;
functions->draw_common_background = tdegtk_draw_common_background;
functions->draw_common_frame = tdegtk_draw_common_frame;
functions->draw_expander = tdegtk_draw_expander;
functions->draw_extension = tdegtk_draw_extension;
functions->draw_focus = tdegtk_draw_focus;
functions->draw_frame_gap = tdegtk_draw_frame_gap;
functions->draw_grip = tdegtk_draw_grip;
functions->draw_handle = tdegtk_draw_handle;
functions->draw_line = tdegtk_draw_line;
functions->draw_notebook = tdegtk_draw_notebook;
functions->draw_radio = tdegtk_draw_radio;
functions->draw_separator = tdegtk_draw_separator;
functions->draw_slider = tdegtk_draw_slider;
functions->draw_spinbutton_background = tdegtk_draw_spinbutton_background;
functions->draw_spinbutton_frame = tdegtk_draw_spinbutton_frame;
}