Initial import of renamed Unico engine, ready for hacking!

1 files changed, 1062 insertions, 0 deletions

diff --git a/tdegtk/tdegtk-draw.c b/tdegtk/tdegtk-draw.c
new file mode 100644
index 0000000..f1fa2df
--- /dev/null
+++ b/tdegtk/tdegtk-draw.c
@@ -0,0 +1,1062 @@
+/* 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 <[email protected]>
+ *
+ */
+
+#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;
+}