gtkwin32draw.c 23.4 KB
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/* GTK - The GIMP Toolkit
 * Copyright (C) 2016 Benjamin Otte <otte@gnome.org>
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#include <config.h>

#include "gtkwin32drawprivate.h"

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typedef enum {
  ICON_CLOSE,
  ICON_MINIMIZE,
  ICON_MAXIMIZE,
  ICON_RESTORE
} Icon;

const guchar icon_close_pixels[] = {
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x0c, 0x06, 0x00, 0x00,
  0x1c, 0x07, 0x00, 0x00,
  0xb8, 0x03, 0x00, 0x00,
  0xf0, 0x01, 0x00, 0x00,
  0xe0, 0x00, 0x00, 0x00,
  0xf0, 0x01, 0x00, 0x00,
  0xb8, 0x03, 0x00, 0x00,
  0x1c, 0x07, 0x00, 0x00,
  0x0c, 0x06, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00
};

const guchar icon_minimize_pixels[] = {
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0xfc, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00
};

const guchar icon_maximize_pixels[] = {
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0xfe, 0x07, 0x00, 0x00,
  0xfe, 0x07, 0x00, 0x00,
  0x02, 0x04, 0x00, 0x00,
  0x02, 0x04, 0x00, 0x00,
  0x02, 0x04, 0x00, 0x00,
  0x02, 0x04, 0x00, 0x00,
  0x02, 0x04, 0x00, 0x00,
  0x02, 0x04, 0x00, 0x00,
  0xfe, 0x07, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00
};

const guchar icon_restore_pixels[] = {
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0xf8, 0x07, 0x00, 0x00,
  0xf8, 0x07, 0x00, 0x00,
  0x08, 0x04, 0x00, 0x00,
  0x08, 0x04, 0x00, 0x00,
  0xfe, 0x04, 0x00, 0x00,
  0x82, 0x07, 0x00, 0x00,
  0x82, 0x00, 0x00, 0x00,
  0x82, 0x00, 0x00, 0x00,
  0xfe, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00
};

static struct {
  int width;
  int height;
  gsize pixels_size;
  const guchar *pixels;
} icon_masks[] = {
  { 13, 13, sizeof (icon_close_pixels), icon_close_pixels },
  { 13, 13, sizeof (icon_minimize_pixels), icon_minimize_pixels },
  { 13, 13, sizeof (icon_maximize_pixels), icon_maximize_pixels },
  { 13, 13, sizeof (icon_restore_pixels), icon_restore_pixels }
};

static void
mask_icon (cairo_t *cr,
           Icon     icon,
           double   x,
           double   y,
           double   width,
           double   height)
{
  cairo_surface_t *surface;

  surface = cairo_image_surface_create_for_data ((guchar *) icon_masks[icon].pixels,
                                                 CAIRO_FORMAT_A1,
                                                 icon_masks[icon].width,
                                                 icon_masks[icon].height,
                                                 icon_masks[icon].pixels_size / icon_masks[icon].height);
  cairo_mask_surface (cr,
                      surface,
                      x + (width - icon_masks[icon].width) / 2,
                      y + (height - icon_masks[icon].height) / 2);
  cairo_surface_destroy (surface);
}

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static void
gtk_cairo_set_source_sys_color (cairo_t *cr,
                                gint     id)
{
  GdkRGBA rgba;

  gtk_win32_get_sys_color (id, &rgba);
  gdk_cairo_set_source_rgba (cr, &rgba);
}

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static void
draw_outline (cairo_t *cr,
              int      top_color_id,
              int      bottom_color_id,
              int      x,
              int      y,
              int      width,
              int      height)
{
  gtk_cairo_set_source_sys_color (cr, top_color_id);
  cairo_rectangle (cr, x, y,     width, 1);
  cairo_rectangle (cr, x, y,     1,     height);
  cairo_fill (cr);

  gtk_cairo_set_source_sys_color (cr, bottom_color_id);
  cairo_rectangle (cr, x + width, y + height, -1,     -height);
  cairo_rectangle (cr, x + width, y + height, -width, -1);
  cairo_fill (cr);
}

typedef enum {
  EDGE_RAISED_OUTER = 1 << 0,
  EDGE_SUNKEN_OUTER = 1 << 1,
  EDGE_RAISED_INNER = 1 << 2,
  EDGE_SUNKEN_INNER = 1 << 3,
  EDGE_RAISED       = (EDGE_RAISED_OUTER | EDGE_RAISED_INNER),
  EDGE_SUNKEN       = (EDGE_SUNKEN_OUTER | EDGE_SUNKEN_INNER),
  EDGE_ETCHED       = (EDGE_SUNKEN_OUTER | EDGE_RAISED_INNER),
  EDGE_BUMP         = (EDGE_RAISED_OUTER | EDGE_SUNKEN_INNER)
} GtkWin32Edge;

static void
draw_edge (cairo_t      *cr,
           GtkWin32Edge  edge,
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           gboolean      soft,
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           int           x,
           int           y,
           int           width,
           int           height)
{
  switch (edge & (EDGE_RAISED_OUTER | EDGE_SUNKEN_OUTER))
    {
    case EDGE_RAISED_OUTER:
      draw_outline (cr,
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                    soft ? GTK_WIN32_SYS_COLOR_BTNHIGHLIGHT : GTK_WIN32_SYS_COLOR_3DLIGHT,
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                    GTK_WIN32_SYS_COLOR_3DDKSHADOW,
                    x, y, width, height);
      break;
    case EDGE_SUNKEN_OUTER:
      draw_outline (cr,
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                    soft ? GTK_WIN32_SYS_COLOR_3DDKSHADOW : GTK_WIN32_SYS_COLOR_BTNSHADOW,
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                    GTK_WIN32_SYS_COLOR_BTNHIGHLIGHT,
                    x, y, width, height);
      break;
    case (EDGE_RAISED_OUTER | EDGE_SUNKEN_OUTER):
      return;
    default:
      break;
    }

  x += 1;
  y += 1;
  width -= 2;
  height -= 2;

  switch (edge & (EDGE_RAISED_INNER | EDGE_SUNKEN_INNER))
    {
    case EDGE_RAISED_INNER:
      draw_outline (cr,
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                    soft ? GTK_WIN32_SYS_COLOR_3DLIGHT : GTK_WIN32_SYS_COLOR_BTNHIGHLIGHT,
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                    GTK_WIN32_SYS_COLOR_BTNSHADOW,
                    x, y, width, height);
      break;
    case EDGE_SUNKEN_INNER:
      draw_outline (cr,
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                    soft ? GTK_WIN32_SYS_COLOR_BTNSHADOW : GTK_WIN32_SYS_COLOR_3DDKSHADOW,
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                    GTK_WIN32_SYS_COLOR_3DLIGHT,
                    x, y, width, height);
      break;
    case (EDGE_RAISED_INNER | EDGE_SUNKEN_INNER):
      return;
    default:
      break;
    }
}
           
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static void
draw_button (cairo_t *cr,
             int      part,
             int      state,
             int      width,
             int      height)
{
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  draw_edge (cr, state == 3 ? EDGE_SUNKEN : EDGE_RAISED, TRUE, 0, 0, width, height);
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  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNFACE);
  cairo_rectangle (cr, 2, 2, width - 4, height - 4);
  cairo_fill (cr);
}

static void
draw_frame (cairo_t *cr,
            int      part,
            int      state,
            int      width,
            int      height)
{
  draw_edge (cr, EDGE_ETCHED, FALSE, 0, 0, width, height);
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  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNFACE);
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  cairo_rectangle (cr, 2, 2, width - 4, height - 4);
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  cairo_fill (cr);
}
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static void
draw_check (cairo_t *cr,
            int      part,
            int      state,
            int      width,
            int      height)
{
  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNHIGHLIGHT);
  cairo_set_line_width (cr, 1.0);
  cairo_rectangle (cr, 0.5, 0.5, width - 1.0, height - 1.0);
  cairo_stroke (cr);
}

static void
draw_radio (cairo_t *cr,
            int      part,
            int      state,
            int      width,
            int      height)
{
  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNHIGHLIGHT);
  cairo_set_line_width (cr, 1.0);
  cairo_arc (cr, width / 2.0, height / 2.0, MIN (width, height) / 2.0 - 0.5, 0, G_PI * 2);
  cairo_stroke (cr);
}

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static void
draw_edit (cairo_t *cr,
           int      part,
           int      state,
           int      width,
           int      height)
{
  int xborder = gtk_win32_get_sys_metric (GTK_WIN32_SYS_METRIC_CXBORDER);
  int yborder = gtk_win32_get_sys_metric (GTK_WIN32_SYS_METRIC_CYBORDER);

  cairo_rectangle (cr, 0, 0, width, height);
  gtk_cairo_set_source_sys_color (cr, (state == 6 || state == 4) ? GTK_WIN32_SYS_COLOR_BTNFACE
                                                                 : GTK_WIN32_SYS_COLOR_WINDOW);
  cairo_fill_preserve (cr);

  cairo_rectangle (cr, width - xborder, yborder,
                   - (width - 2 * xborder), height - 2 * yborder);
  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_WINDOWFRAME);
  cairo_fill (cr);
}

static void
draw_edit_noborder (cairo_t *cr,
                    int      part,
                    int      state,
                    int      width,
                    int      height)
{

  cairo_rectangle (cr, 0, 0, width, height);
  gtk_cairo_set_source_sys_color (cr, (state == 6 || state == 4) ? GTK_WIN32_SYS_COLOR_BTNFACE
                                                                 : GTK_WIN32_SYS_COLOR_WINDOW);
  cairo_fill (cr);
}

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static void
draw_window (cairo_t *cr,
             int      part,
             int      state,
             int      width,
             int      height)
{
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  draw_edge (cr, EDGE_RAISED, TRUE, 0, 0, width, height + 2);
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  gtk_cairo_set_source_sys_color (cr, state == 2 ? GTK_WIN32_SYS_COLOR_INACTIVECAPTION
                                                 : GTK_WIN32_SYS_COLOR_ACTIVECAPTION);
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  cairo_rectangle (cr, 2, 2, width - 4, height - 2);
  cairo_fill (cr);
}

static void
draw_window_left (cairo_t *cr,
                  int      part,
                  int      state,
                  int      width,
                  int      height)
{
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  draw_edge (cr, EDGE_RAISED, TRUE, 0, -2, width + 2, height + 4);
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  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNFACE);
  cairo_rectangle (cr, 2, 0, width - 2, height);
  cairo_fill (cr);
}

static void
draw_window_right (cairo_t *cr,
                   int      part,
                   int      state,
                   int      width,
                   int      height)
{
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  draw_edge (cr, EDGE_RAISED, TRUE, -2, -2, width + 2, height + 4);
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  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNFACE);
  cairo_rectangle (cr, 0, 0, width - 2, height);
  cairo_fill (cr);
}

static void
draw_window_bottom (cairo_t *cr,
                    int      part,
                    int      state,
                    int      width,
                    int      height)
{
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  draw_edge (cr, EDGE_RAISED, TRUE, 0, -2, width, height + 2);
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  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNFACE);
  cairo_rectangle (cr, 2, 0, width - 4, height - 2);
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  cairo_fill (cr);
}

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static void
draw_window_button (cairo_t *cr,
                    int      part,
                    int      state,
                    int      width,
                    int      height)
{
  Icon icon;


  switch (part)
    {
    case 15: /* minimize */
      icon = ICON_MINIMIZE;
      break;
    case 17: /* maximize */
      icon = ICON_MAXIMIZE;
      break;
    default:
      g_assert_not_reached ();
    case 18: /* close */
      icon = ICON_CLOSE;
      break;
    case 21: /* restore */
      icon = ICON_RESTORE;
      break;
    }

  draw_button (cr, 0, state, width, height);

  gtk_cairo_set_source_sys_color (cr, state == 4 ? GTK_WIN32_SYS_COLOR_BTNSHADOW
                                                 : GTK_WIN32_SYS_COLOR_BTNTEXT);
  mask_icon (cr, icon, 1, 1, width - 2, height - 2);
}

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static void
draw_tab_item (cairo_t *cr,
               int      part,
               int      state,
               int      width,
               int      height)
{
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  draw_edge (cr, EDGE_RAISED, TRUE, 0, 0, width, height + 2);
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  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNFACE);
  cairo_rectangle (cr, 2, 2, width - 4, height - 2);
  cairo_fill (cr);
}

static void
draw_tab_pane (cairo_t *cr,
               int      part,
               int      state,
               int      width,
               int      height)
{
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  draw_edge (cr, EDGE_RAISED, TRUE, 0, 0, width, height);
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  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_BTNFACE);
  cairo_rectangle (cr, 2, 2, width - 4, height - 4);
  cairo_fill (cr);
}

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static void
draw_tooltip (cairo_t *cr,
              int      part,
              int      state,
              int      width,
              int      height)
{
  int xborder = gtk_win32_get_sys_metric (GTK_WIN32_SYS_METRIC_CXDLGFRAME) -
                gtk_win32_get_sys_metric (GTK_WIN32_SYS_METRIC_CXEDGE);
  int yborder = gtk_win32_get_sys_metric (GTK_WIN32_SYS_METRIC_CYDLGFRAME) -
                gtk_win32_get_sys_metric (GTK_WIN32_SYS_METRIC_CYEDGE);

  cairo_rectangle (cr, 0, 0, width, height);
  cairo_rectangle (cr, width - xborder, yborder,
                   - (width - 2 * xborder), height - 2 * yborder);
  gtk_cairo_set_source_sys_color (cr, GTK_WIN32_SYS_COLOR_WINDOWFRAME);
  cairo_fill (cr);
}

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typedef struct _GtkWin32ThemePart GtkWin32ThemePart;
struct _GtkWin32ThemePart {
  const char *class_name;
  gint        part;
  gint        size;
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  GtkBorder   margins;
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  void        (* draw_func)             (cairo_t        *cr,
                                         int             part,
                                         int             state,
                                         int             width,
                                         int             height);
};

static GtkWin32ThemePart theme_parts[] = {
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  { "button",  1,  0, { 3, 3, 3, 3 }, draw_button },
  { "button",  2, 13, { 0, 0, 0, 0 }, draw_radio },
  { "button",  3, 13, { 0, 0, 0, 0 }, draw_check },
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  { "button",  4,  0, { 3, 3, 3, 3 }, draw_frame },
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  { "edit",    1,  0, { 0, 0, 0, 0 }, draw_edit },
  { "edit",    3,  0, { 0, 0, 0, 0 }, draw_edit_noborder },
  { "edit",    6,  0, { 0, 0, 0, 0 }, draw_edit },
  { "edit",    7,  0, { 0, 0, 0, 0 }, draw_edit },
  { "edit",    8,  0, { 0, 0, 0, 0 }, draw_edit },
  { "edit",    9,  0, { 0, 0, 0, 0 }, draw_edit },
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  { "tab",     1,  0, { 0, 0, 0, 0 }, draw_tab_item },
  { "tab",     2,  0, { 0, 0, 0, 0 }, draw_tab_item },
  { "tab",     3,  0, { 0, 0, 0, 0 }, draw_tab_item },
  { "tab",     4,  0, { 0, 0, 0, 0 }, draw_tab_item },
  { "tab",     5,  0, { 0, 0, 0, 0 }, draw_tab_item },
  { "tab",     6,  0, { 0, 0, 0, 0 }, draw_tab_item },
  { "tab",     7,  0, { 0, 0, 0, 0 }, draw_tab_item },
  { "tab",     8,  0, { 0, 0, 0, 0 }, draw_tab_item },
  { "tab",     9,  0, { 0, 0, 0, 0 }, draw_tab_pane },
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  { "tooltip", 1,  0, { 0, 0, 0, 0 }, draw_tooltip },
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  { "window",  1,  0, { 0, 0, 0, 0 }, draw_window },
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  { "window",  7,  0, { 0, 0, 0, 0 }, draw_window_left },
  { "window",  8,  0, { 0, 0, 0, 0 }, draw_window_right },
  { "window",  9,  0, { 0, 0, 0, 0 }, draw_window_bottom },
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  { "window", 15,  0, { 0, 0, 0, 0 }, draw_window_button },
  { "window", 17,  0, { 0, 0, 0, 0 }, draw_window_button },
  { "window", 18,  0, { 0, 0, 0, 0 }, draw_window_button },
  { "window", 21,  0, { 0, 0, 0, 0 }, draw_window_button }
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};

static const GtkWin32ThemePart *
get_theme_part (const char *class_name,
                gint        part)
{
  gsize i;

  for (i = 0; i < G_N_ELEMENTS (theme_parts); i++)
    {
      if (g_str_equal (theme_parts[i].class_name, class_name) &&
          theme_parts[i].part == part)
        return &theme_parts[i];
    }

  return NULL;
}

void
gtk_win32_draw_theme_background (cairo_t    *cr,
                                 const char *class_name,
                                 int         part,
                                 int         state,
                                 int         width,
                                 int         height)
{
  const GtkWin32ThemePart *theme_part;

  theme_part = get_theme_part (class_name, part);

  if (theme_part)
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    {
      theme_part->draw_func (cr, part, state, width, height);
    }
  else
    {
      g_warning ("No fallback code to draw background for class \"%s\", part %d", class_name, part);
    }
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}

void
gtk_win32_get_theme_part_size (const char *class_name,
                               int          part,
                               int          state,
                               int         *width,
                               int         *height)
{
  const GtkWin32ThemePart *theme_part;

  theme_part = get_theme_part (class_name, part);

  if (theme_part)
    {
      if (width)
        *width = theme_part->size;
      if (height)
        *height = theme_part->size;
    }
  else
    {
      if (width)
        *width = 1;
      if (height)
        *height = 1;
    }
}

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void
gtk_win32_get_theme_margins (const char     *class_name,
                             int             part,
                             int             state,
                             GtkBorder      *out_margins)
{
  const GtkWin32ThemePart *theme_part;

  theme_part = get_theme_part (class_name, part);

  if (theme_part)
    {
      *out_margins = theme_part->margins;
    }
  else
    {
      out_margins->top = out_margins->bottom = out_margins->left = out_margins->right = 0;
    }
}

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static int
FIXME_IMPLEMENT (int id)
{
  g_warning ("win32 sys metric %d not implemented", id);
  return 0;
}

static struct {
  const char *name;
  int         value;
  int         (* get_value) (int id);
} win32_default_metrics[] = {
  { "cxscreen",            0, FIXME_IMPLEMENT },
  { "cyscreen",            0, FIXME_IMPLEMENT },
  { "cxvscroll",          16, NULL },
  { "cyhscroll",          16, NULL },
  { "cycaption",          16, NULL },
  { "cxborder",            1, NULL },
  { "cyborder",            1, NULL },
  { "cxdlgframe",          3, NULL },
  { "cydlgframe",          3, NULL },
  { "cyvthumb",           16, NULL },
  { "cxhthumb",           16, NULL },
  { "cxicon",             32, NULL },
  { "cyicon",             32, NULL },
  { "cxcursor",           32, NULL },
  { "cycursor",           32, NULL },
  { "cymenu",             19, NULL },
  { "cxfullscreen", 0, FIXME_IMPLEMENT },
  { "cyfullscreen", 0, FIXME_IMPLEMENT },
  { "cykanjiwindow",       0, NULL },
  { "mousepresent",        1, NULL },
  { "cyvscroll",          16, NULL },
  { "cxhscroll",          16, NULL },
  { "debug",               0, NULL },
  { "swapbutton",          0, NULL },
  { "reserved1",           0, NULL },
  { "reserved2",           0, NULL },
  { "reserved3",           0, NULL },
  { "reserved4",           0, NULL },
  { "cxmin",             112, NULL },
  { "cymin",              24, NULL },
  { "cxsize",             18, NULL },
  { "cysize",             15, NULL },
  { "cxframe",             4, NULL },
  { "cyframe",             4, NULL },
  { "cxmintrack",        112, NULL },
  { "cymintrack",         24, NULL },
  { "cxdoubleclk",         0, FIXME_IMPLEMENT },
  { "cydoubleclk",         0, FIXME_IMPLEMENT },
  { "cxiconspacing",      75, NULL },
  { "cyiconspacing",      75, NULL },
  { "menudropalignment",   0, NULL },
  { "penwindows",          0, NULL },
  { "dbcsenabled",         1, NULL },
  { "cmousebuttons",       3, NULL },
  { "secure",              0, NULL },
  { "cxedge",              2, NULL },
  { "cyedge",              2, NULL },
  { "cxminspacing",      160, NULL },
  { "cyminspacing",       21, NULL },
  { "cxsmicon",           16, NULL },
  { "cysmicon",           16, NULL },
  { "cysmcaption",        16, NULL },
  { "cxsmsize",           15, NULL },
  { "cysmsize",           15, NULL },
  { "cxmenusize",         18, NULL },
  { "cymenusize",         18, NULL },
  { "arrange",             8, NULL },
  { "cxminimized",       160, NULL },
  { "cyminimized",        21, NULL },
  { "cxmaxtrack", 0, FIXME_IMPLEMENT },
  { "cymaxtrack", 0, FIXME_IMPLEMENT },
  { "cxmaximized", 0, FIXME_IMPLEMENT },
  { "cymaximized", 0, FIXME_IMPLEMENT },
  { "network",             3, NULL },
  { NULL,                  0, NULL },
  { NULL,                  0, NULL },
  { NULL,                  0, NULL },
  { "cleanboot",           0, NULL },
  { "cxdrag",              4, NULL },
  { "cydrag",              4, NULL },
  { "showsounds",          0, NULL },
  { "cxmenucheck",        13, NULL },
  { "cymenucheck",        13, NULL },
  { "slowmachine",         0, NULL },
  { "mideastenabled",      0, NULL },
  { "mousewheelpresent",   1, NULL },
  { "xvirtualscreen", 0, FIXME_IMPLEMENT },
  { "yvirtualscreen", 0, FIXME_IMPLEMENT },
  { "cxvirtualscreen", 0, FIXME_IMPLEMENT },
  { "cyvirtualscreen", 0, FIXME_IMPLEMENT },
  { "cmonitors", 0, FIXME_IMPLEMENT },
  { "samedisplayformat",   1, NULL },
  { "immenabled",          1, NULL },
  { "cxfocusborder",       1, NULL },
  { "cyfocusborder",       1, NULL },
  { NULL,                  0, NULL },
  { "tabletpc",            0, NULL },
  { "mediacenter",         0, NULL },
  { "starter",             0, NULL },
  { "serverr2",            0, NULL },
  { "cmetrics",           90, NULL },
  { "mousehorizontalwheelpresent", 0, NULL },
  { "cxpaddedborder",      0, NULL }
};

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const char *
gtk_win32_get_sys_metric_name_for_id (gint id)
{
  if (id >= 0 && id < G_N_ELEMENTS (win32_default_metrics))
    return win32_default_metrics[id].name;
  else
    return NULL;
}

int
gtk_win32_get_sys_metric_id_for_name (const char *name)
{
  int i;

  g_return_val_if_fail (name != NULL, -1);

  for (i = 0; i < G_N_ELEMENTS (win32_default_metrics); i++)
    {
      if (win32_default_metrics[i].name == NULL)
        continue;

      if (g_str_equal (name, win32_default_metrics[i].name))
        return i;
    }

  return -1;
}

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int
gtk_win32_get_sys_metric (gint id)
{
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  if (id < 0 || id >= G_N_ELEMENTS (win32_default_metrics))
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    return 0;

  if (win32_default_metrics[id].get_value)
    return win32_default_metrics[id].get_value (id);

  return win32_default_metrics[id].value;
}

static struct {
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  const char *name;
  GdkRGBA rgba;
} win32_default_colors[] = {
#define RGB(r, g, b) { (r)/255.0, (g)/255.0, (b)/255., 1.0 }
  { "scrollbar", RGB(212, 208, 200) },
  { "background", RGB(58, 110, 165) },
  { "activecaption", RGB(10, 36, 106) },
  { "inactivecaption", RGB(128, 128, 128) },
  { "menu", RGB(212, 208, 200) },
  { "window", RGB(255, 255, 255) },
  { "windowframe", RGB(0, 0, 0) },
  { "menutext", RGB(0, 0, 0) },
  { "windowtext", RGB(0, 0, 0) },
  { "captiontext", RGB(255, 255, 255) },
  { "activeborder", RGB(212, 208, 200) },
  { "inactiveborder", RGB(212, 208, 200) },
  { "appworkspace", RGB(128, 128, 128) },
  { "highlight", RGB(10, 36, 106) },
  { "highlighttext", RGB(255, 255, 255) },
  { "btnface", RGB(212, 208, 200) },
  { "btnshadow", RGB(128, 128, 128) },
  { "graytext", RGB(128, 128, 128) },
  { "btntext", RGB(0, 0, 0) },
  { "inactivecaptiontext", RGB(212, 208, 200) },
  { "btnhighlight", RGB(255, 255, 255) },
  { "3ddkshadow", RGB(64, 64, 64) },
  { "3dlight", RGB(212, 208, 200) },
  { "infotext", RGB(0, 0, 0) },
  { "infobk", RGB(255, 255, 225) },
  { "alternatebtnface", RGB(181, 181, 181) },
  { "hotlight", RGB(0, 0, 200) },
  { "gradientactivecaption", RGB(166, 202, 240) },
  { "gradientinactivecaption", RGB(192, 192, 192) },
  { "menuhilight", RGB(10, 36, 106) },
  { "menubar", RGB(212, 208, 200) }
#undef RGB
};

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const char *
gtk_win32_get_sys_color_name_for_id (gint id)
{
  if (id >= 0 && id < G_N_ELEMENTS (win32_default_colors))
    return win32_default_colors[id].name;
  else
    return NULL;
}

int
gtk_win32_get_sys_color_id_for_name (const char *name)
{
  int i;

  g_return_val_if_fail (name != NULL, -1);

  for (i = 0; i < G_N_ELEMENTS (win32_default_colors); i++)
    {
      if (g_str_equal (name, win32_default_colors[i].name))
        return i;
    }

  return -1;
}

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void
gtk_win32_get_sys_color (gint     id,
                         GdkRGBA *color)
{
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  if (id < 0 || id >= G_N_ELEMENTS (win32_default_colors))
    {
      gdk_rgba_parse (color, "black");
      return;
    }

  *color = win32_default_colors[id].rgba;
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}