[gnome-desktop] Add a keyboard drawing widget
- From: Giovanni Campagna <gcampagna src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-desktop] Add a keyboard drawing widget
- Date: Wed, 27 Mar 2013 17:21:53 +0000 (UTC)
commit c8d041318670e74f110a8c326e91352136b56770
Author: Giovanni Campagna <gcampagna src gnome org>
Date: Mon Feb 25 00:50:13 2013 +0100
Add a keyboard drawing widget
Copied from libgnomekdb, which is now dead, and adapted for
gnome-desktop (mainly to remove the dependency on libxklavier
and to use the correct namespace)
https://bugzilla.gnome.org/show_bug.cgi?id=694633
libgnome-desktop/Makefile.am | 6 +-
libgnome-desktop/gnome-keyboard-drawing.c | 2532 +++++++++++++++++++++++++++++
libgnome-desktop/gnome-keyboard-drawing.h | 56 +
3 files changed, 2592 insertions(+), 2 deletions(-)
---
diff --git a/libgnome-desktop/Makefile.am b/libgnome-desktop/Makefile.am
index 7041be5..1307062 100644
--- a/libgnome-desktop/Makefile.am
+++ b/libgnome-desktop/Makefile.am
@@ -38,7 +38,8 @@ introspection_sources = \
gnome-xkb-info.c \
gnome-idle-monitor.c \
gnome-languages.c \
- edid-parse.c
+ edid-parse.c \
+ gnome-keyboard-drawing.c
libgnome_desktop_3_la_SOURCES = \
$(introspection_sources) \
@@ -76,7 +77,8 @@ libgnome_desktop_HEADERS = \
gnome-wall-clock.h \
gnome-xkb-info.h \
gnome-idle-monitor.h \
- gnome-languages.h
+ gnome-languages.h \
+ gnome-keyboard-drawing.h
if USE_INTERNAL_PNP_IDS
pnpdatadir = $(datadir)/libgnome-desktop-3.0
diff --git a/libgnome-desktop/gnome-keyboard-drawing.c b/libgnome-desktop/gnome-keyboard-drawing.c
new file mode 100644
index 0000000..ce14904
--- /dev/null
+++ b/libgnome-desktop/gnome-keyboard-drawing.c
@@ -0,0 +1,2532 @@
+/*
+ * Copyright (C) 2006 Sergey V. Udaltsov <svu 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkx.h>
+#include <gdk/gdkkeysyms.h>
+#include <X11/XKBlib.h>
+#include <X11/extensions/XKBgeom.h>
+#include <X11/extensions/XKBrules.h>
+#include <stdlib.h>
+#include <memory.h>
+#include <math.h>
+#include <glib/gi18n-lib.h>
+
+#define GNOME_DESKTOP_USE_UNSTABLE_API
+
+#include "gnome-xkb-info.h"
+#include "gnome-keyboard-drawing.h"
+
+#define noKBDRAW_DEBUG
+
+#define INVALID_KEYCODE ((guint)(-1))
+
+#define GTK_RESPONSE_PRINT 2
+
+#define CAIRO_LINE_WIDTH 1.0
+
+#define KEY_FONT_SIZE 12
+
+typedef struct _GnomeKeyboardDrawingItem GnomeKeyboardDrawingItem;
+typedef struct _GnomeKeyboardDrawingKey GnomeKeyboardDrawingKey;
+typedef struct _GnomeKeyboardDrawingDoodad GnomeKeyboardDrawingDoodad;
+typedef struct _GnomeKeyboardDrawingGroupLevel GnomeKeyboardDrawingGroupLevel;
+typedef struct _GnomeKeyboardDrawingRenderContext GnomeKeyboardDrawingRenderContext;
+
+typedef enum {
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_INVALID = 0,
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY,
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY_EXTRA,
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_DOODAD
+} GnomeKeyboardDrawingItemType;
+
+typedef enum {
+ GNOME_KEYBOARD_DRAWING_POS_TOPLEFT,
+ GNOME_KEYBOARD_DRAWING_POS_TOPRIGHT,
+ GNOME_KEYBOARD_DRAWING_POS_BOTTOMLEFT,
+ GNOME_KEYBOARD_DRAWING_POS_BOTTOMRIGHT,
+ GNOME_KEYBOARD_DRAWING_POS_TOTAL,
+ GNOME_KEYBOARD_DRAWING_POS_FIRST =
+ GNOME_KEYBOARD_DRAWING_POS_TOPLEFT,
+ GNOME_KEYBOARD_DRAWING_POS_LAST =
+ GNOME_KEYBOARD_DRAWING_POS_BOTTOMRIGHT
+} GnomeKeyboardDrawingGroupLevelPosition;
+
+/* units are in xkb form */
+struct _GnomeKeyboardDrawingItem {
+ /*< private > */
+
+ GnomeKeyboardDrawingItemType type;
+ gint origin_x;
+ gint origin_y;
+ gint angle;
+ guint priority;
+};
+
+/* units are in xkb form */
+struct _GnomeKeyboardDrawingKey {
+ /*< private > */
+
+ GnomeKeyboardDrawingItemType type;
+ gint origin_x;
+ gint origin_y;
+ gint angle;
+ guint priority;
+
+ XkbKeyRec *xkbkey;
+ gboolean pressed;
+ guint keycode;
+};
+
+/* units are in xkb form */
+struct _GnomeKeyboardDrawingDoodad {
+ /*< private > */
+
+ GnomeKeyboardDrawingItemType type;
+ gint origin_x;
+ gint origin_y;
+ gint angle;
+ guint priority;
+
+ XkbDoodadRec *doodad;
+ gboolean on; /* for indicator doodads */
+};
+
+struct _GnomeKeyboardDrawingGroupLevel {
+ gint group;
+ gint level;
+};
+
+struct _GnomeKeyboardDrawingRenderContext {
+ cairo_t *cr;
+
+ gint angle; /* current angle pango is set to draw at, in tenths of a degree */
+ PangoLayout *layout;
+ PangoFontDescription *font_desc;
+
+ gint scale_numerator;
+ gint scale_denominator;
+
+ GdkRGBA dark_color;
+};
+
+struct _GnomeKeyboardDrawing {
+ /*< private > */
+
+ GtkDrawingArea parent;
+
+ XkbDescRec *xkb;
+ gboolean xkbOnDisplay;
+ guint l3mod;
+
+ GnomeKeyboardDrawingRenderContext *renderContext;
+
+ /* Indexed by keycode */
+ GnomeKeyboardDrawingKey *keys;
+
+ /* list of stuff to draw in priority order */
+ GList *keyboard_items;
+
+ GdkRGBA *colors;
+
+ guint timeout;
+
+ Display *display;
+ gint screen_num;
+
+ gint xkb_event_type;
+
+ GnomeKeyboardDrawingDoodad **physical_indicators;
+ gint physical_indicators_size;
+};
+
+struct _GnomeKeyboardDrawingClass {
+ GtkDrawingAreaClass parent_class;
+
+ /* we send this signal when the user presses a key that "doesn't exist"
+ * according to the keyboard geometry; it probably means their xkb
+ * configuration is incorrect */
+ void (*bad_keycode) (GnomeKeyboardDrawing * drawing, guint keycode);
+};
+
+G_DEFINE_TYPE (GnomeKeyboardDrawing, gnome_keyboard_drawing, GTK_TYPE_DRAWING_AREA)
+
+static GnomeKeyboardDrawingGroupLevel defaultGroupsLevels[] = {
+ {0, 1},
+ {0, 3},
+ {0, 0},
+ {0, 2}
+};
+
+static GnomeKeyboardDrawingGroupLevel *groupLevels[] = {
+ defaultGroupsLevels,
+ defaultGroupsLevels + 1,
+ defaultGroupsLevels + 2,
+ defaultGroupsLevels + 3
+};
+
+enum {
+ BAD_KEYCODE = 0,
+ NUM_SIGNALS
+};
+
+static guint gnome_keyboard_drawing_signals[NUM_SIGNALS] = { 0 };
+
+static void gnome_keyboard_drawing_set_keyboard (GnomeKeyboardDrawing *kbdrawing,
+ XkbComponentNamesRec *names);
+
+static gboolean gnome_keyboard_drawing_render (GnomeKeyboardDrawing *kbdrawing,
+ cairo_t *cr,
+ PangoLayout *layout,
+ double x,
+ double y,
+ double width,
+ double height,
+ gdouble dpi_x,
+ gdouble dpi_y);
+
+static gint
+xkb_to_pixmap_coord (GnomeKeyboardDrawingRenderContext *context, gint n)
+{
+ return n * context->scale_numerator / context->scale_denominator;
+}
+
+static gdouble
+xkb_to_pixmap_double (GnomeKeyboardDrawingRenderContext *context,
+ gdouble d)
+{
+ return d * context->scale_numerator / context->scale_denominator;
+}
+
+
+/* angle is in tenths of a degree; coordinates can be anything as (xkb,
+ * pixels, pango) as long as they are all the same */
+static void
+rotate_coordinate (gint origin_x,
+ gint origin_y,
+ gint x,
+ gint y, gint angle, gint *rotated_x, gint *rotated_y)
+{
+ *rotated_x =
+ origin_x + (x - origin_x) * cos (M_PI * angle / 1800.0) - (y -
+ origin_y)
+ * sin (M_PI * angle / 1800.0);
+ *rotated_y =
+ origin_y + (x - origin_x) * sin (M_PI * angle / 1800.0) + (y -
+ origin_y)
+ * cos (M_PI * angle / 1800.0);
+}
+
+static gdouble
+length (gdouble x, gdouble y)
+{
+ return sqrt (x * x + y * y);
+}
+
+static gdouble
+point_line_distance (gdouble ax, gdouble ay, gdouble nx, gdouble ny)
+{
+ return ax * nx + ay * ny;
+}
+
+static void
+normal_form (gdouble ax, gdouble ay,
+ gdouble bx, gdouble by,
+ gdouble *nx, gdouble *ny, gdouble *d)
+{
+ gdouble l;
+
+ *nx = by - ay;
+ *ny = ax - bx;
+
+ l = length (*nx, *ny);
+
+ *nx /= l;
+ *ny /= l;
+
+ *d = point_line_distance (ax, ay, *nx, *ny);
+}
+
+static void
+inverse (gdouble a, gdouble b, gdouble c, gdouble d,
+ gdouble *e, gdouble *f, gdouble *g, gdouble *h)
+{
+ gdouble det;
+
+ det = a * d - b * c;
+
+ *e = d / det;
+ *f = -b / det;
+ *g = -c / det;
+ *h = a / det;
+}
+
+static void
+multiply (gdouble a, gdouble b, gdouble c, gdouble d,
+ gdouble e, gdouble f, gdouble *x, gdouble *y)
+{
+ *x = a * e + b * f;
+ *y = c * e + d * f;
+}
+
+static void
+intersect (gdouble n1x, gdouble n1y, gdouble d1,
+ gdouble n2x, gdouble n2y, gdouble d2, gdouble *x, gdouble *y)
+{
+ gdouble e, f, g, h;
+
+ inverse (n1x, n1y, n2x, n2y, &e, &f, &g, &h);
+ multiply (e, f, g, h, d1, d2, x, y);
+}
+
+
+/* draw an angle from the current point to b and then to c,
+ * with a rounded corner of the given radius.
+ */
+static void
+rounded_corner (cairo_t *cr,
+ gdouble bx, gdouble by,
+ gdouble cx, gdouble cy, gdouble radius)
+{
+ gdouble ax, ay;
+ gdouble n1x, n1y, d1;
+ gdouble n2x, n2y, d2;
+ gdouble pd1, pd2;
+ gdouble ix, iy;
+ gdouble dist1, dist2;
+ gdouble nx, ny, d;
+ gdouble a1x, a1y, c1x, c1y;
+ gdouble phi1, phi2;
+
+ cairo_get_current_point (cr, &ax, &ay);
+#ifdef KBDRAW_DEBUG
+ printf (" current point: (%f, %f), radius %f:\n", ax, ay,
+ radius);
+#endif
+
+ /* make sure radius is not too large */
+ dist1 = length (bx - ax, by - ay);
+ dist2 = length (cx - bx, cy - by);
+
+ radius = MIN (radius, MIN (dist1, dist2));
+
+ /* construct normal forms of the lines */
+ normal_form (ax, ay, bx, by, &n1x, &n1y, &d1);
+ normal_form (bx, by, cx, cy, &n2x, &n2y, &d2);
+
+ /* find which side of the line a,b the point c is on */
+ if (point_line_distance (cx, cy, n1x, n1y) < d1)
+ pd1 = d1 - radius;
+ else
+ pd1 = d1 + radius;
+
+ /* find which side of the line b,c the point a is on */
+ if (point_line_distance (ax, ay, n2x, n2y) < d2)
+ pd2 = d2 - radius;
+ else
+ pd2 = d2 + radius;
+
+ /* intersect the parallels to find the center of the arc */
+ intersect (n1x, n1y, pd1, n2x, n2y, pd2, &ix, &iy);
+
+ nx = (bx - ax) / dist1;
+ ny = (by - ay) / dist1;
+ d = point_line_distance (ix, iy, nx, ny);
+
+ /* a1 is the point on the line a-b where the arc starts */
+ intersect (n1x, n1y, d1, nx, ny, d, &a1x, &a1y);
+
+ nx = (cx - bx) / dist2;
+ ny = (cy - by) / dist2;
+ d = point_line_distance (ix, iy, nx, ny);
+
+ /* c1 is the point on the line b-c where the arc ends */
+ intersect (n2x, n2y, d2, nx, ny, d, &c1x, &c1y);
+
+ /* determine the first angle */
+ if (a1x - ix == 0)
+ phi1 = (a1y - iy > 0) ? M_PI_2 : 3 * M_PI_2;
+ else if (a1x - ix > 0)
+ phi1 = atan ((a1y - iy) / (a1x - ix));
+ else
+ phi1 = M_PI + atan ((a1y - iy) / (a1x - ix));
+
+ /* determine the second angle */
+ if (c1x - ix == 0)
+ phi2 = (c1y - iy > 0) ? M_PI_2 : 3 * M_PI_2;
+ else if (c1x - ix > 0)
+ phi2 = atan ((c1y - iy) / (c1x - ix));
+ else
+ phi2 = M_PI + atan ((c1y - iy) / (c1x - ix));
+
+ /* compute the difference between phi2 and phi1 mod 2pi */
+ d = phi2 - phi1;
+ while (d < 0)
+ d += 2 * M_PI;
+ while (d > 2 * M_PI)
+ d -= 2 * M_PI;
+
+#ifdef KBDRAW_DEBUG
+ printf (" line 1 to: (%f, %f):\n", a1x, a1y);
+#endif
+ if (!(isnan (a1x) || isnan (a1y)))
+ cairo_line_to (cr, a1x, a1y);
+
+ /* pick the short arc from phi1 to phi2 */
+ if (d < M_PI)
+ cairo_arc (cr, ix, iy, radius, phi1, phi2);
+ else
+ cairo_arc_negative (cr, ix, iy, radius, phi1, phi2);
+
+#ifdef KBDRAW_DEBUG
+ printf (" line 2 to: (%f, %f):\n", cx, cy);
+#endif
+ cairo_line_to (cr, cx, cy);
+}
+
+static void
+rounded_polygon (cairo_t *cr,
+ gboolean filled,
+ gdouble radius,
+ GdkPoint *points,
+ gint num_points)
+{
+ gint i, j;
+
+ cairo_move_to (cr,
+ (gdouble) (points[num_points - 1].x +
+ points[0].x) / 2,
+ (gdouble) (points[num_points - 1].y +
+ points[0].y) / 2);
+
+
+#ifdef KBDRAW_DEBUG
+ printf (" rounded polygon of radius %f:\n", radius);
+#endif
+ for (i = 0; i < num_points; i++) {
+ j = (i + 1) % num_points;
+ rounded_corner (cr, (gdouble) points[i].x,
+ (gdouble) points[i].y,
+ (gdouble) (points[i].x + points[j].x) / 2,
+ (gdouble) (points[i].y + points[j].y) / 2,
+ radius);
+#ifdef KBDRAW_DEBUG
+ printf (" corner (%d, %d) -> (%d, %d):\n",
+ points[i].x, points[i].y, points[j].x,
+ points[j].y);
+#endif
+ };
+ cairo_close_path (cr);
+
+ if (filled)
+ cairo_fill (cr);
+ else {
+ cairo_set_line_width (cr, CAIRO_LINE_WIDTH);
+ cairo_stroke (cr);
+ }
+}
+
+static void
+draw_polygon (GnomeKeyboardDrawingRenderContext *context,
+ GdkRGBA *fill_color,
+ gint xkb_x,
+ gint xkb_y,
+ XkbPointRec *xkb_points,
+ guint num_points,
+ gdouble radius)
+{
+ GdkPoint *points;
+ gboolean filled;
+ gint i;
+
+ if (fill_color) {
+ filled = TRUE;
+ } else {
+ fill_color = &context->dark_color;
+ filled = FALSE;
+ }
+
+ gdk_cairo_set_source_rgba (context->cr, fill_color);
+
+ points = g_new (GdkPoint, num_points);
+
+#ifdef KBDRAW_DEBUG
+ printf (" Polygon points:\n");
+#endif
+ for (i = 0; i < num_points; i++) {
+ points[i].x =
+ xkb_to_pixmap_coord (context, xkb_x + xkb_points[i].x);
+ points[i].y =
+ xkb_to_pixmap_coord (context, xkb_y + xkb_points[i].y);
+#ifdef KBDRAW_DEBUG
+ printf (" %d, %d\n", points[i].x, points[i].y);
+#endif
+ }
+
+ rounded_polygon (context->cr, filled,
+ xkb_to_pixmap_double (context, radius),
+ points, num_points);
+
+ g_free (points);
+}
+
+static void
+curve_rectangle (cairo_t * cr,
+ gdouble x0,
+ gdouble y0, gdouble width, gdouble height, gdouble radius)
+{
+ gdouble x1, y1;
+
+ if (!width || !height)
+ return;
+
+ x1 = x0 + width;
+ y1 = y0 + height;
+
+ radius = MIN (radius, MIN (width / 2, height / 2));
+
+ cairo_move_to (cr, x0, y0 + radius);
+ cairo_arc (cr, x0 + radius, y0 + radius, radius, M_PI,
+ 3 * M_PI / 2);
+ cairo_line_to (cr, x1 - radius, y0);
+ cairo_arc (cr, x1 - radius, y0 + radius, radius, 3 * M_PI / 2,
+ 2 * M_PI);
+ cairo_line_to (cr, x1, y1 - radius);
+ cairo_arc (cr, x1 - radius, y1 - radius, radius, 0, M_PI / 2);
+ cairo_line_to (cr, x0 + radius, y1);
+ cairo_arc (cr, x0 + radius, y1 - radius, radius, M_PI / 2, M_PI);
+
+ cairo_close_path (cr);
+}
+
+static void
+draw_curve_rectangle (cairo_t *cr,
+ gboolean filled,
+ GdkRGBA *color,
+ gint x,
+ gint y,
+ gint width,
+ gint height,
+ gint radius)
+{
+ curve_rectangle (cr, x, y, width, height, radius);
+
+ gdk_cairo_set_source_rgba (cr, color);
+
+ if (filled)
+ cairo_fill (cr);
+ else {
+ cairo_set_line_width (cr, CAIRO_LINE_WIDTH);
+ cairo_stroke (cr);
+ }
+}
+
+/* x, y, width, height are in the xkb coordinate system */
+static void
+draw_rectangle (GnomeKeyboardDrawingRenderContext *context,
+ GdkRGBA *color,
+ gint angle,
+ gint xkb_x, gint xkb_y, gint xkb_width, gint xkb_height,
+ gint radius)
+{
+ if (angle == 0) {
+ gint x, y, width, height;
+ gboolean filled;
+
+ if (color) {
+ filled = TRUE;
+ } else {
+ color = &context->dark_color;
+ filled = FALSE;
+ }
+
+ x = xkb_to_pixmap_coord (context, xkb_x);
+ y = xkb_to_pixmap_coord (context, xkb_y);
+ width =
+ xkb_to_pixmap_coord (context, xkb_x + xkb_width) - x;
+ height =
+ xkb_to_pixmap_coord (context, xkb_y + xkb_height) - y;
+
+ draw_curve_rectangle (context->cr, filled, color,
+ x, y, width, height,
+ xkb_to_pixmap_double (context,
+ radius));
+ } else {
+ XkbPointRec points[4];
+ gint x, y;
+
+ points[0].x = xkb_x;
+ points[0].y = xkb_y;
+ rotate_coordinate (xkb_x, xkb_y, xkb_x + xkb_width, xkb_y,
+ angle, &x, &y);
+ points[1].x = x;
+ points[1].y = y;
+ rotate_coordinate (xkb_x, xkb_y, xkb_x + xkb_width,
+ xkb_y + xkb_height, angle, &x, &y);
+ points[2].x = x;
+ points[2].y = y;
+ rotate_coordinate (xkb_x, xkb_y, xkb_x, xkb_y + xkb_height,
+ angle, &x, &y);
+ points[3].x = x;
+ points[3].y = y;
+
+ /* the points we've calculated are relative to 0,0 */
+ draw_polygon (context, color, 0, 0, points, 4, radius);
+ }
+}
+
+static void
+draw_outline (GnomeKeyboardDrawingRenderContext *context,
+ XkbOutlineRec *outline,
+ GdkRGBA *color,
+ gint angle,
+ gint origin_x,
+ gint origin_y)
+{
+#ifdef KBDRAW_DEBUG
+ printf ("origin: %d, %d, num_points in %p: %d\n", origin_x,
+ origin_y, outline, outline->num_points);
+#endif
+
+ if (outline->num_points == 1) {
+#ifdef KBDRAW_DEBUG
+ printf
+ ("1 point (rectangle): width, height: %d, %d, radius %d\n",
+ outline->points[0].x, outline->points[0].y,
+ outline->corner_radius);
+#endif
+ if (color)
+ draw_rectangle (context, color, angle, origin_x,
+ origin_y, outline->points[0].x,
+ outline->points[0].y,
+ outline->corner_radius);
+
+ draw_rectangle (context, NULL, angle, origin_x,
+ origin_y, outline->points[0].x,
+ outline->points[0].y,
+ outline->corner_radius);
+ } else if (outline->num_points == 2) {
+ gint rotated_x0, rotated_y0;
+
+ rotate_coordinate (origin_x, origin_y,
+ origin_x + outline->points[0].x,
+ origin_y + outline->points[0].y,
+ angle, &rotated_x0, &rotated_y0);
+#ifdef KBDRAW_DEBUG
+ printf
+ ("2 points (rectangle): from %d, %d, width, height: %d, %d, radius %d\n",
+ rotated_x0, rotated_y0, outline->points[1].x,
+ outline->points[1].y, outline->corner_radius);
+#endif
+ if (color)
+ draw_rectangle (context, color, angle, rotated_x0,
+ rotated_y0, outline->points[1].x,
+ outline->points[1].y,
+ outline->corner_radius);
+ draw_rectangle (context, NULL, angle, rotated_x0,
+ rotated_y0, outline->points[1].x,
+ outline->points[1].y,
+ outline->corner_radius);
+ } else {
+#ifdef KBDRAW_DEBUG
+ printf ("multiple points (%d) from %d %d, radius %d\n",
+ outline->num_points, origin_x, origin_y,
+ outline->corner_radius);
+#endif
+ if (color)
+ draw_polygon (context, color, origin_x, origin_y,
+ outline->points, outline->num_points,
+ outline->corner_radius);
+ draw_polygon (context, NULL, origin_x, origin_y,
+ outline->points, outline->num_points,
+ outline->corner_radius);
+ }
+}
+
+/* see PSColorDef in xkbprint */
+static gboolean
+parse_xkb_color_spec (gchar *colorspec, GdkRGBA *color)
+{
+ glong level;
+
+ color->alpha = 1;
+ if (g_ascii_strcasecmp (colorspec, "black") == 0) {
+ color->red = 0;
+ color->green = 0;
+ color->blue = 0;
+ } else if (g_ascii_strcasecmp (colorspec, "white") == 0) {
+ color->red = 1.0;
+ color->green = 1.0;
+ color->blue = 1.0;
+ } else if (g_ascii_strncasecmp (colorspec, "grey", 4) == 0 ||
+ g_ascii_strncasecmp (colorspec, "gray", 4) == 0) {
+ level = strtol (colorspec + 4, NULL, 10);
+
+ color->red = 1.0 - level / 100.0;
+ color->green = 1.0 - level / 100.0;
+ color->blue = 1.0 - level / 100.0;
+ } else if (g_ascii_strcasecmp (colorspec, "red") == 0) {
+ color->red = 1.0;
+ color->green = 0;
+ color->blue = 0;
+ } else if (g_ascii_strcasecmp (colorspec, "green") == 0) {
+ color->red = 0;
+ color->green = 1.0;
+ color->blue = 0;
+ } else if (g_ascii_strcasecmp (colorspec, "blue") == 0) {
+ color->red = 0;
+ color->green = 0;
+ color->blue = 1.0;
+ } else if (g_ascii_strncasecmp (colorspec, "red", 3) == 0) {
+ level = strtol (colorspec + 3, NULL, 10);
+
+ color->red = level / 100.0;
+ color->green = 0;
+ color->blue = 0;
+ } else if (g_ascii_strncasecmp (colorspec, "green", 5) == 0) {
+ level = strtol (colorspec + 5, NULL, 10);
+
+ color->red = 0;
+ color->green = level / 100.0;
+ color->blue = 0;
+ } else if (g_ascii_strncasecmp (colorspec, "blue", 4) == 0) {
+ level = strtol (colorspec + 4, NULL, 10);
+
+ color->red = 0;
+ color->green = 0;
+ color->blue = level / 100.0;
+ } else
+ return FALSE;
+
+ return TRUE;
+}
+
+
+static guint
+find_keycode (GnomeKeyboardDrawing *drawing, gchar *key_name)
+{
+#define KEYSYM_NAME_MAX_LENGTH 4
+ guint keycode;
+ gint i, j;
+ XkbKeyNamePtr pkey;
+ XkbKeyAliasPtr palias;
+ guint is_name_matched;
+ gchar *src, *dst;
+
+ if (!drawing->xkb)
+ return INVALID_KEYCODE;
+
+#ifdef KBDRAW_DEBUG
+ printf (" looking for keycode for (%c%c%c%c)\n",
+ key_name[0], key_name[1], key_name[2], key_name[3]);
+#endif
+
+ pkey = drawing->xkb->names->keys + drawing->xkb->min_key_code;
+ for (keycode = drawing->xkb->min_key_code;
+ keycode <= drawing->xkb->max_key_code; keycode++) {
+ is_name_matched = 1;
+ src = key_name;
+ dst = pkey->name;
+ for (i = KEYSYM_NAME_MAX_LENGTH; --i >= 0;) {
+ if ('\0' == *src)
+ break;
+ if (*src++ != *dst++) {
+ is_name_matched = 0;
+ break;
+ }
+ }
+ if (is_name_matched) {
+#ifdef KBDRAW_DEBUG
+ printf (" found keycode %u\n", keycode);
+#endif
+ return keycode;
+ }
+ pkey++;
+ }
+
+ palias = drawing->xkb->names->key_aliases;
+ for (j = drawing->xkb->names->num_key_aliases; --j >= 0;) {
+ is_name_matched = 1;
+ src = key_name;
+ dst = palias->alias;
+ for (i = KEYSYM_NAME_MAX_LENGTH; --i >= 0;) {
+ if ('\0' == *src)
+ break;
+ if (*src++ != *dst++) {
+ is_name_matched = 0;
+ break;
+ }
+ }
+
+ if (is_name_matched) {
+ keycode = find_keycode (drawing, palias->real);
+#ifdef KBDRAW_DEBUG
+ printf ("found alias keycode %u\n", keycode);
+#endif
+ return keycode;
+ }
+ palias++;
+ }
+
+ return INVALID_KEYCODE;
+}
+
+static void
+set_markup (GnomeKeyboardDrawingRenderContext *context, gchar *txt)
+{
+ PangoLayout *layout = context->layout;
+ txt = strcmp ("<", txt) ? txt : "<";
+ txt = strcmp ("&", txt) ? txt : "&";
+ if (g_utf8_strlen (txt, -1) > 1) {
+ gchar *buf =
+ g_strdup_printf ("<span size=\"x-small\">%s</span>",
+ txt);
+ pango_layout_set_markup (layout, buf, -1);
+ g_free (buf);
+ } else {
+ pango_layout_set_markup (layout, txt, -1);
+ }
+}
+
+static void
+set_key_label_in_layout (GnomeKeyboardDrawingRenderContext *context,
+ guint keyval)
+{
+ gchar buf[5];
+ gunichar uc;
+
+ switch (keyval) {
+ case GDK_KEY_Scroll_Lock:
+ set_markup (context, "Scroll\nLock");
+ break;
+
+ case GDK_KEY_space:
+ set_markup (context, "");
+ break;
+
+ case GDK_KEY_Sys_Req:
+ set_markup (context, "Sys Rq");
+ break;
+
+ case GDK_KEY_Page_Up:
+ set_markup (context, "Page\nUp");
+ break;
+
+ case GDK_KEY_Page_Down:
+ set_markup (context, "Page\nDown");
+ break;
+
+ case GDK_KEY_Num_Lock:
+ set_markup (context, "Num\nLock");
+ break;
+
+ case GDK_KEY_KP_Page_Up:
+ set_markup (context, "Pg Up");
+ break;
+
+ case GDK_KEY_KP_Page_Down:
+ set_markup (context, "Pg Dn");
+ break;
+
+ case GDK_KEY_KP_Home:
+ set_markup (context, "Home");
+ break;
+
+ case GDK_KEY_KP_Left:
+ set_markup (context, "Left");
+ break;
+
+ case GDK_KEY_KP_End:
+ set_markup (context, "End");
+ break;
+
+ case GDK_KEY_KP_Up:
+ set_markup (context, "Up");
+ break;
+
+ case GDK_KEY_KP_Begin:
+ set_markup (context, "Begin");
+ break;
+
+ case GDK_KEY_KP_Right:
+ set_markup (context, "Right");
+ break;
+
+ case GDK_KEY_KP_Enter:
+ set_markup (context, "Enter");
+ break;
+
+ case GDK_KEY_KP_Down:
+ set_markup (context, "Down");
+ break;
+
+ case GDK_KEY_KP_Insert:
+ set_markup (context, "Ins");
+ break;
+
+ case GDK_KEY_KP_Delete:
+ set_markup (context, "Del");
+ break;
+
+ case GDK_KEY_dead_grave:
+ set_markup (context, "ˋ");
+ break;
+
+ case GDK_KEY_dead_acute:
+ set_markup (context, "ˊ");
+ break;
+
+ case GDK_KEY_dead_circumflex:
+ set_markup (context, "ˆ");
+ break;
+
+ case GDK_KEY_dead_tilde:
+ set_markup (context, "~");
+ break;
+
+ case GDK_KEY_dead_macron:
+ set_markup (context, "ˉ");
+ break;
+
+ case GDK_KEY_dead_breve:
+ set_markup (context, "˘");
+ break;
+
+ case GDK_KEY_dead_abovedot:
+ set_markup (context, "˙");
+ break;
+
+ case GDK_KEY_dead_diaeresis:
+ set_markup (context, "¨");
+ break;
+
+ case GDK_KEY_dead_abovering:
+ set_markup (context, "˚");
+ break;
+
+ case GDK_KEY_dead_doubleacute:
+ set_markup (context, "˝");
+ break;
+
+ case GDK_KEY_dead_caron:
+ set_markup (context, "ˇ");
+ break;
+
+ case GDK_KEY_dead_cedilla:
+ set_markup (context, "¸");
+ break;
+
+ case GDK_KEY_dead_ogonek:
+ set_markup (context, "˛");
+ break;
+
+ /* case GDK_KEY_dead_iota:
+ * case GDK_KEY_dead_voiced_sound:
+ * case GDK_KEY_dead_semivoiced_sound: */
+
+ case GDK_KEY_dead_belowdot:
+ set_markup (context, " ̣");
+ break;
+
+ case GDK_KEY_horizconnector:
+ set_markup (context, "horiz\nconn");
+ break;
+
+ case GDK_KEY_Mode_switch:
+ set_markup (context, "AltGr");
+ break;
+
+ case GDK_KEY_Multi_key:
+ set_markup (context, "Compose");
+ break;
+
+ case GDK_KEY_VoidSymbol:
+ set_markup (context, "");
+ break;
+
+ default:
+ uc = gdk_keyval_to_unicode (keyval);
+ if (uc != 0 && g_unichar_isgraph (uc)) {
+ buf[g_unichar_to_utf8 (uc, buf)] = '\0';
+ set_markup (context, buf);
+ } else {
+ gchar *name = gdk_keyval_name (keyval);
+ if (name) {
+ gchar *fixed_name = g_strdup (name), *p;
+ /* Replace underscores with spaces */
+ for (p = fixed_name; *p; p++)
+ if (*p == '_')
+ *p = ' ';
+ /* Get rid of scary ISO_ prefix */
+ if (g_strstr_len (fixed_name, -1, "ISO "))
+ set_markup (context,
+ fixed_name + 4);
+ else
+ set_markup (context, fixed_name);
+ g_free (fixed_name);
+ } else
+ set_markup (context, "");
+ }
+ }
+}
+
+
+static void
+draw_pango_layout (GnomeKeyboardDrawingRenderContext *context,
+ GnomeKeyboardDrawing *drawing,
+ gint angle,
+ gint x,
+ gint y,
+ gboolean is_pressed)
+{
+ PangoLayout *layout = context->layout;
+ GdkRGBA *pcolor, color;
+ PangoLayoutLine *line;
+ gint x_off, y_off;
+ gint i;
+
+ if (is_pressed) {
+ GtkStyleContext *style_context =
+ gtk_widget_get_style_context (GTK_WIDGET (drawing));
+ pcolor = &color;
+ gtk_style_context_get_color (style_context,
+ GTK_STATE_FLAG_SELECTED,
+ pcolor);
+ } else {
+ pcolor =
+ drawing->colors + (drawing->xkb->geom->label_color -
+ drawing->xkb->geom->colors);
+ }
+
+ if (angle != context->angle) {
+ PangoMatrix matrix = PANGO_MATRIX_INIT;
+ pango_matrix_rotate (&matrix, -angle / 10.0);
+ pango_context_set_matrix (pango_layout_get_context
+ (layout), &matrix);
+ pango_layout_context_changed (layout);
+ context->angle = angle;
+ }
+
+ i = 0;
+ y_off = 0;
+ for (line = pango_layout_get_line (layout, i);
+ line != NULL; line = pango_layout_get_line (layout, ++i)) {
+ GSList *runp;
+ PangoRectangle line_extents;
+
+ x_off = 0;
+
+ for (runp = line->runs; runp != NULL; runp = runp->next) {
+ PangoGlyphItem *run = runp->data;
+ gint j;
+
+ for (j = 0; j < run->glyphs->num_glyphs; j++) {
+ PangoGlyphGeometry *geometry;
+
+ geometry =
+ &run->glyphs->glyphs[j].geometry;
+
+ x_off += geometry->width;
+ }
+ }
+
+ pango_layout_line_get_extents (line, NULL, &line_extents);
+ y_off +=
+ line_extents.height +
+ pango_layout_get_spacing (layout);
+ }
+
+ cairo_move_to (context->cr, x, y);
+ gdk_cairo_set_source_rgba (context->cr, pcolor);
+ pango_cairo_show_layout (context->cr, layout);
+}
+
+static void
+draw_key_label_helper (GnomeKeyboardDrawingRenderContext *context,
+ GnomeKeyboardDrawing *drawing,
+ KeySym keysym,
+ gint angle,
+ GnomeKeyboardDrawingGroupLevelPosition glp,
+ gint x,
+ gint y,
+ gint width,
+ gint height,
+ gint padding,
+ gboolean is_pressed)
+{
+ gint label_x, label_y, label_max_width, ycell;
+
+ if (keysym == 0)
+ return;
+#ifdef KBDRAW_DEBUG
+ printf ("keysym: %04X(%c) at glp: %d\n",
+ (unsigned) keysym, (char) keysym, (int) glp);
+#endif
+
+ switch (glp) {
+ case GNOME_KEYBOARD_DRAWING_POS_TOPLEFT:
+ case GNOME_KEYBOARD_DRAWING_POS_BOTTOMLEFT:
+ {
+ ycell =
+ glp == GNOME_KEYBOARD_DRAWING_POS_BOTTOMLEFT;
+
+ rotate_coordinate (x, y, x + padding,
+ y + padding + (height -
+ 2 * padding) *
+ ycell * 4 / 7, angle, &label_x,
+ &label_y);
+ label_max_width =
+ PANGO_SCALE * (width - 2 * padding);
+ break;
+ }
+ case GNOME_KEYBOARD_DRAWING_POS_TOPRIGHT:
+ case GNOME_KEYBOARD_DRAWING_POS_BOTTOMRIGHT:
+ {
+ ycell =
+ glp == GNOME_KEYBOARD_DRAWING_POS_BOTTOMRIGHT;
+
+ rotate_coordinate (x, y,
+ x + padding + (width -
+ 2 * padding) *
+ 4 / 7,
+ y + padding + (height -
+ 2 * padding) *
+ ycell * 4 / 7, angle, &label_x,
+ &label_y);
+ label_max_width =
+ PANGO_SCALE * ((width - 2 * padding) -
+ (width - 2 * padding) * 4 / 7);
+ break;
+ }
+ default:
+ return;
+ }
+ set_key_label_in_layout (context, keysym);
+ pango_layout_set_width (context->layout, label_max_width);
+ label_y -= (pango_layout_get_line_count (context->layout) - 1) *
+ (pango_font_description_get_size (context->font_desc) /
+ PANGO_SCALE);
+ cairo_save (context->cr);
+ cairo_rectangle (context->cr, x + padding / 2, y + padding / 2,
+ width - padding, height - padding);
+ cairo_clip (context->cr);
+ draw_pango_layout (context, drawing, angle, label_x, label_y,
+ is_pressed);
+ cairo_restore (context->cr);
+}
+
+static void
+draw_key_label (GnomeKeyboardDrawingRenderContext *context,
+ GnomeKeyboardDrawing *drawing,
+ guint keycode,
+ gint angle,
+ gint xkb_origin_x,
+ gint xkb_origin_y,
+ gint xkb_width,
+ gint xkb_height,
+ gboolean is_pressed)
+{
+ gint x, y, width, height;
+ gint padding;
+ gint g, l, glp;
+
+ if (!drawing->xkb)
+ return;
+
+ padding = 23 * context->scale_numerator / context->scale_denominator; /* 2.3mm */
+
+ x = xkb_to_pixmap_coord (context, xkb_origin_x);
+ y = xkb_to_pixmap_coord (context, xkb_origin_y);
+ width =
+ xkb_to_pixmap_coord (context, xkb_origin_x + xkb_width) - x;
+ height =
+ xkb_to_pixmap_coord (context, xkb_origin_y + xkb_height) - y;
+
+ for (glp = GNOME_KEYBOARD_DRAWING_POS_TOPLEFT;
+ glp < GNOME_KEYBOARD_DRAWING_POS_TOTAL; glp++) {
+ KeySym keysym;
+
+ if (groupLevels[glp] == NULL)
+ continue;
+ g = groupLevels[glp]->group;
+ l = groupLevels[glp]->level;
+
+ if (g < 0 || g >= XkbKeyNumGroups (drawing->xkb, keycode))
+ continue;
+ if (l < 0 || l >= XkbKeyGroupWidth (drawing->xkb, keycode, g))
+ continue;
+
+ /* Skip "exotic" levels like the "Ctrl" level in PC_SYSREQ */
+ if (l > 0) {
+ guint mods = XkbKeyKeyType (drawing->xkb, keycode, g)->mods.mask;
+ if ((mods & (ShiftMask | drawing->l3mod)) == 0)
+ continue;
+ }
+
+ keysym = XkbKeySymEntry (drawing->xkb, keycode, l, g);
+
+ draw_key_label_helper (context, drawing, keysym,
+ angle, glp, x, y, width,
+ height, padding,
+ is_pressed);
+ }
+}
+
+/*
+ * The x offset is calculated for complex shapes. It is the rightmost of the vertical lines in the outline
+ */
+static gint
+calc_shape_origin_offset_x (XkbOutlineRec *outline)
+{
+ gint rv = 0;
+ gint i;
+ XkbPointPtr point = outline->points;
+ if (outline->num_points < 3)
+ return 0;
+ for (i = outline->num_points; --i > 0;) {
+ gint x1 = point->x;
+ gint y1 = point++->y;
+ gint x2 = point->x;
+ gint y2 = point->y;
+
+ /*vertical, bottom to top (clock-wise), on the left */
+ if ((x1 == x2) && (y1 > y2) && (x1 > rv)) {
+ rv = x1;
+ }
+ }
+ return rv;
+}
+
+/* groups are from 0-3 */
+static void
+draw_key (GnomeKeyboardDrawingRenderContext *context,
+ GnomeKeyboardDrawing *drawing,
+ GnomeKeyboardDrawingKey *key)
+{
+ XkbShapeRec *shape;
+ GdkRGBA *pcolor, color;
+ XkbOutlineRec *outline;
+ int origin_offset_x;
+ /* gint i; */
+
+ if (!drawing->xkb)
+ return;
+
+#ifdef KBDRAW_DEBUG
+ printf ("shape: %p (base %p, index %d)\n",
+ drawing->xkb->geom->shapes + key->xkbkey->shape_ndx,
+ drawing->xkb->geom->shapes, key->xkbkey->shape_ndx);
+#endif
+
+ shape = drawing->xkb->geom->shapes + key->xkbkey->shape_ndx;
+
+ if (key->pressed) {
+ GtkStyleContext *style_context =
+ gtk_widget_get_style_context (GTK_WIDGET (drawing));
+ pcolor = &color;
+ gtk_style_context_get_background_color (style_context,
+ GTK_STATE_FLAG_SELECTED,
+ pcolor);
+ } else
+ pcolor = drawing->colors + key->xkbkey->color_ndx;
+
+#ifdef KBDRAW_DEBUG
+ printf
+ (" outlines base in the shape: %p (total: %d), origin: (%d, %d), angle %d, colored: %s\n",
+ shape->outlines, shape->num_outlines, key->origin_x,
+ key->origin_y, key->angle, pcolor ? "yes" : "no");
+#endif
+
+ /* draw the primary outline */
+ outline = shape->primary ? shape->primary : shape->outlines;
+ draw_outline (context, outline, pcolor, key->angle, key->origin_x,
+ key->origin_y);
+#if 0
+ /* don't draw other outlines for now, since
+ * the text placement does not take them into account
+ */
+ for (i = 0; i < shape->num_outlines; i++) {
+ if (shape->outlines + i == shape->approx ||
+ shape->outlines + i == shape->primary)
+ continue;
+ draw_outline (context, shape->outlines + i, NULL,
+ key->angle, key->origin_x, key->origin_y);
+ }
+#endif
+ origin_offset_x = calc_shape_origin_offset_x (outline);
+ draw_key_label (context, drawing, key->keycode, key->angle,
+ key->origin_x + origin_offset_x, key->origin_y,
+ shape->bounds.x2, shape->bounds.y2, key->pressed);
+}
+
+static void
+invalidate_region (GnomeKeyboardDrawing * drawing,
+ gdouble angle,
+ gint origin_x, gint origin_y, XkbShapeRec * shape)
+{
+ GdkPoint points[4];
+ GtkAllocation alloc;
+ gint x_min, x_max, y_min, y_max;
+ gint x, y, width, height;
+ gint xx, yy;
+
+ rotate_coordinate (0, 0, 0, 0, angle, &xx, &yy);
+ points[0].x = xx;
+ points[0].y = yy;
+ rotate_coordinate (0, 0, shape->bounds.x2, 0, angle, &xx, &yy);
+ points[1].x = xx;
+ points[1].y = yy;
+ rotate_coordinate (0, 0, shape->bounds.x2, shape->bounds.y2, angle,
+ &xx, &yy);
+ points[2].x = xx;
+ points[2].y = yy;
+ rotate_coordinate (0, 0, 0, shape->bounds.y2, angle, &xx, &yy);
+ points[3].x = xx;
+ points[3].y = yy;
+
+ x_min =
+ MIN (MIN (points[0].x, points[1].x),
+ MIN (points[2].x, points[3].x));
+ x_max =
+ MAX (MAX (points[0].x, points[1].x),
+ MAX (points[2].x, points[3].x));
+ y_min =
+ MIN (MIN (points[0].y, points[1].y),
+ MIN (points[2].y, points[3].y));
+ y_max =
+ MAX (MAX (points[0].y, points[1].y),
+ MAX (points[2].y, points[3].y));
+
+ x = xkb_to_pixmap_coord (drawing->renderContext,
+ origin_x + x_min) - 6;
+ y = xkb_to_pixmap_coord (drawing->renderContext,
+ origin_y + y_min) - 6;
+ width =
+ xkb_to_pixmap_coord (drawing->renderContext,
+ x_max - x_min) + 12;
+ height =
+ xkb_to_pixmap_coord (drawing->renderContext,
+ y_max - y_min) + 12;
+
+ gtk_widget_get_allocation (GTK_WIDGET (drawing), &alloc);
+ gtk_widget_queue_draw_area (GTK_WIDGET (drawing),
+ x + alloc.x, y + alloc.y,
+ width, height);
+}
+
+static void
+invalidate_indicator_doodad_region (GnomeKeyboardDrawing * drawing,
+ GnomeKeyboardDrawingDoodad * doodad)
+{
+ if (!drawing->xkb)
+ return;
+
+ invalidate_region (drawing,
+ doodad->angle,
+ doodad->origin_x +
+ doodad->doodad->indicator.left,
+ doodad->origin_y +
+ doodad->doodad->indicator.top,
+ &drawing->xkb->geom->shapes[doodad->doodad->
+ indicator.
+ shape_ndx]);
+}
+
+static void
+invalidate_key_region (GnomeKeyboardDrawing * drawing,
+ GnomeKeyboardDrawingKey * key)
+{
+ if (!drawing->xkb)
+ return;
+
+ invalidate_region (drawing,
+ key->angle,
+ key->origin_x,
+ key->origin_y,
+ &drawing->xkb->geom->shapes[key->xkbkey->
+ shape_ndx]);
+}
+
+static void
+draw_text_doodad (GnomeKeyboardDrawingRenderContext * context,
+ GnomeKeyboardDrawing * drawing,
+ GnomeKeyboardDrawingDoodad * doodad,
+ XkbTextDoodadRec * text_doodad)
+{
+ gint x, y;
+ if (!drawing->xkb)
+ return;
+
+ x = xkb_to_pixmap_coord (context,
+ doodad->origin_x + text_doodad->left);
+ y = xkb_to_pixmap_coord (context,
+ doodad->origin_y + text_doodad->top);
+
+ set_markup (context, text_doodad->text);
+ draw_pango_layout (context, drawing, doodad->angle, x, y, FALSE);
+}
+
+static void
+draw_indicator_doodad (GnomeKeyboardDrawingRenderContext * context,
+ GnomeKeyboardDrawing * drawing,
+ GnomeKeyboardDrawingDoodad * doodad,
+ XkbIndicatorDoodadRec * indicator_doodad)
+{
+ GdkRGBA *color;
+ XkbShapeRec *shape;
+ gint i;
+
+ if (!drawing->xkb)
+ return;
+
+ shape = drawing->xkb->geom->shapes + indicator_doodad->shape_ndx;
+
+ color = drawing->colors + (doodad->on ?
+ indicator_doodad->on_color_ndx :
+ indicator_doodad->off_color_ndx);
+
+ for (i = 0; i < 1; i++)
+ draw_outline (context, shape->outlines + i, color,
+ doodad->angle,
+ doodad->origin_x + indicator_doodad->left,
+ doodad->origin_y + indicator_doodad->top);
+}
+
+static void
+draw_shape_doodad (GnomeKeyboardDrawingRenderContext * context,
+ GnomeKeyboardDrawing * drawing,
+ GnomeKeyboardDrawingDoodad * doodad,
+ XkbShapeDoodadRec * shape_doodad)
+{
+ XkbShapeRec *shape;
+ GdkRGBA *color;
+ gint i;
+
+ if (!drawing->xkb)
+ return;
+
+ shape = drawing->xkb->geom->shapes + shape_doodad->shape_ndx;
+ color = drawing->colors + shape_doodad->color_ndx;
+
+ /* draw the primary outline filled */
+ draw_outline (context,
+ shape->primary ? shape->primary : shape->outlines,
+ color, doodad->angle,
+ doodad->origin_x + shape_doodad->left,
+ doodad->origin_y + shape_doodad->top);
+
+ /* stroke the other outlines */
+ for (i = 0; i < shape->num_outlines; i++) {
+ if (shape->outlines + i == shape->approx ||
+ shape->outlines + i == shape->primary)
+ continue;
+ draw_outline (context, shape->outlines + i, NULL,
+ doodad->angle,
+ doodad->origin_x + shape_doodad->left,
+ doodad->origin_y + shape_doodad->top);
+ }
+}
+
+static void
+draw_doodad (GnomeKeyboardDrawingRenderContext * context,
+ GnomeKeyboardDrawing * drawing,
+ GnomeKeyboardDrawingDoodad * doodad)
+{
+ switch (doodad->doodad->any.type) {
+ case XkbOutlineDoodad:
+ case XkbSolidDoodad:
+ draw_shape_doodad (context, drawing, doodad,
+ &doodad->doodad->shape);
+ break;
+
+ case XkbTextDoodad:
+ draw_text_doodad (context, drawing, doodad,
+ &doodad->doodad->text);
+ break;
+
+ case XkbIndicatorDoodad:
+ draw_indicator_doodad (context, drawing, doodad,
+ &doodad->doodad->indicator);
+ break;
+
+ case XkbLogoDoodad:
+ /* g_print ("draw_doodad: logo: %s\n", doodad->doodad->logo.logo_name); */
+ /* XkbLogoDoodadRec is essentially a subclass of XkbShapeDoodadRec */
+ draw_shape_doodad (context, drawing, doodad,
+ &doodad->doodad->shape);
+ break;
+ }
+}
+
+typedef struct {
+ GnomeKeyboardDrawing *drawing;
+ GnomeKeyboardDrawingRenderContext *context;
+} DrawKeyboardItemData;
+
+static void
+draw_keyboard_item (GnomeKeyboardDrawingItem * item,
+ DrawKeyboardItemData * data)
+{
+ GnomeKeyboardDrawing *drawing = data->drawing;
+ GnomeKeyboardDrawingRenderContext *context = data->context;
+
+ if (!drawing->xkb)
+ return;
+
+ switch (item->type) {
+ case GNOME_KEYBOARD_DRAWING_ITEM_TYPE_INVALID:
+ break;
+
+ case GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY:
+ case GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY_EXTRA:
+ draw_key (context, drawing,
+ (GnomeKeyboardDrawingKey *) item);
+ break;
+
+ case GNOME_KEYBOARD_DRAWING_ITEM_TYPE_DOODAD:
+ draw_doodad (context, drawing,
+ (GnomeKeyboardDrawingDoodad *) item);
+ break;
+ }
+}
+
+static void
+draw_keyboard_to_context (GnomeKeyboardDrawingRenderContext * context,
+ GnomeKeyboardDrawing * drawing)
+{
+ DrawKeyboardItemData data = { drawing, context };
+ g_list_foreach (drawing->keyboard_items,
+ (GFunc) draw_keyboard_item, &data);
+}
+
+static gboolean
+prepare_cairo (GnomeKeyboardDrawing * drawing, cairo_t * cr)
+{
+ GtkStateFlags state;
+ GtkStyleContext *style_context;
+ if (drawing == NULL)
+ return FALSE;
+
+ style_context =
+ gtk_widget_get_style_context (GTK_WIDGET (drawing));
+ drawing->renderContext->cr = cr;
+ state = gtk_widget_get_state_flags (GTK_WIDGET (drawing));
+ gtk_style_context_get_background_color (style_context, state,
+ &drawing->
+ renderContext->dark_color);
+
+ /* same approach as gtk - dark color = background color * 0.7 */
+ drawing->renderContext->dark_color.red *= 0.7;
+ drawing->renderContext->dark_color.green *= 0.7;
+ drawing->renderContext->dark_color.blue *= 0.7;
+ return TRUE;
+}
+
+static void
+draw_keyboard (GnomeKeyboardDrawing * drawing, cairo_t * cr)
+{
+ GtkStateFlags state =
+ gtk_widget_get_state_flags (GTK_WIDGET (drawing));
+ GtkStyleContext *style_context =
+ gtk_widget_get_style_context (GTK_WIDGET (drawing));
+ GtkAllocation allocation;
+
+ if (!drawing->xkb)
+ return;
+
+ gtk_widget_get_allocation (GTK_WIDGET (drawing), &allocation);
+
+ if (prepare_cairo (drawing, cr)) {
+ /* blank background */
+ GdkRGBA color;
+ gtk_style_context_get_background_color (style_context,
+ state, &color);
+ gdk_cairo_set_source_rgba (cr, &color);
+ cairo_paint (cr);
+#ifdef KBDRAW_DEBUG
+ GdkRGBA yellow = { 1.0, 1.0, 0, 1.0 };
+ gdk_cairo_set_source_rgba (cr, &yellow);
+
+ cairo_move_to (cr, 0, 0);
+ cairo_line_to (cr, allocation.width, 0);
+ cairo_line_to (cr, allocation.width, allocation.height);
+ cairo_line_to (cr, 0, allocation.height);
+ cairo_close_path (cr);
+
+ cairo_stroke (cr);
+#endif
+
+ draw_keyboard_to_context (drawing->renderContext, drawing);
+ }
+}
+
+static void
+alloc_render_context (GnomeKeyboardDrawing * drawing)
+{
+ GnomeKeyboardDrawingRenderContext *context =
+ drawing->renderContext =
+ g_new0 (GnomeKeyboardDrawingRenderContext, 1);
+
+ PangoContext *pangoContext =
+ gtk_widget_get_pango_context (GTK_WIDGET (drawing));
+ context->layout = pango_layout_new (pangoContext);
+ pango_layout_set_ellipsize (context->layout, PANGO_ELLIPSIZE_END);
+
+ context->font_desc =
+ pango_font_description_copy (gtk_widget_get_style
+ (GTK_WIDGET
+ (drawing))->font_desc);
+ context->angle = 0;
+ context->scale_numerator = 1;
+ context->scale_denominator = 1;
+}
+
+static void
+free_render_context (GnomeKeyboardDrawing * drawing)
+{
+ GnomeKeyboardDrawingRenderContext *context = drawing->renderContext;
+
+ g_object_unref (context->layout);
+ pango_font_description_free (context->font_desc);
+
+ g_free (drawing->renderContext);
+}
+
+static gboolean
+gnome_keyboard_drawing_draw (GtkWidget *widget,
+ cairo_t *cr)
+{
+ GnomeKeyboardDrawing *drawing;
+
+ drawing = GNOME_KEYBOARD_DRAWING (widget);
+
+ if (!drawing->xkb)
+ return FALSE;
+
+ draw_keyboard (GNOME_KEYBOARD_DRAWING (drawing), cr);
+ return FALSE;
+}
+
+static gboolean
+context_setup_scaling (GnomeKeyboardDrawingRenderContext * context,
+ GnomeKeyboardDrawing * drawing,
+ gdouble width, gdouble height,
+ gdouble dpi_x, gdouble dpi_y)
+{
+ if (!drawing->xkb)
+ return FALSE;
+
+ if (drawing->xkb->geom->width_mm <= 0
+ || drawing->xkb->geom->height_mm <= 0) {
+ g_critical
+ ("keyboard geometry reports width or height as zero!");
+ return FALSE;
+ }
+
+ if (width * drawing->xkb->geom->height_mm <
+ height * drawing->xkb->geom->width_mm) {
+ context->scale_numerator = width;
+ context->scale_denominator = drawing->xkb->geom->width_mm;
+ } else {
+ context->scale_numerator = height;
+ context->scale_denominator = drawing->xkb->geom->height_mm;
+ }
+
+ pango_font_description_set_size (context->font_desc,
+ 72 * KEY_FONT_SIZE * dpi_x *
+ context->scale_numerator /
+ context->scale_denominator);
+ pango_layout_set_spacing (context->layout,
+ -160 * dpi_y * context->scale_numerator /
+ context->scale_denominator);
+ pango_layout_set_font_description (context->layout,
+ context->font_desc);
+
+ return TRUE;
+}
+
+static void
+gnome_keyboard_drawing_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GnomeKeyboardDrawing *drawing;
+ GnomeKeyboardDrawingRenderContext *context;
+
+ drawing = GNOME_KEYBOARD_DRAWING (widget);
+ context = drawing->renderContext;
+
+ if (!context_setup_scaling (context, drawing,
+ allocation->width, allocation->height,
+ 50, 50))
+ return;
+
+ gtk_widget_set_allocation (widget, allocation);
+}
+
+static gboolean
+gnome_keyboard_drawing_key_event (GtkWidget *widget,
+ GdkEventKey *event)
+{
+ GnomeKeyboardDrawing *drawing;
+ GnomeKeyboardDrawingKey *key;
+
+ drawing = GNOME_KEYBOARD_DRAWING (widget);
+
+ if (!drawing->xkb)
+ return FALSE;
+
+ key = drawing->keys + event->hardware_keycode;
+
+ if (event->hardware_keycode > drawing->xkb->max_key_code ||
+ event->hardware_keycode < drawing->xkb->min_key_code ||
+ key->xkbkey == NULL) {
+ g_signal_emit (drawing,
+ gnome_keyboard_drawing_signals[BAD_KEYCODE],
+ 0, event->hardware_keycode);
+ return TRUE;
+ }
+
+ if ((event->type == GDK_KEY_PRESS && key->pressed) ||
+ (event->type == GDK_KEY_RELEASE && !key->pressed))
+ return TRUE;
+ /* otherwise this event changes the state we believed we had before */
+
+ key->pressed = (event->type == GDK_KEY_PRESS);
+
+ invalidate_key_region (drawing, key);
+ return FALSE;
+}
+
+static gboolean
+gnome_keyboard_drawing_button_press_event (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GnomeKeyboardDrawing *drawing;
+
+ drawing = GNOME_KEYBOARD_DRAWING (widget);
+
+ if (!drawing->xkb)
+ return FALSE;
+
+ gtk_widget_grab_focus (widget);
+ return FALSE;
+}
+
+static gboolean
+unpress_keys (GnomeKeyboardDrawing * drawing)
+{
+ gint i;
+
+ if (!drawing->xkb)
+ return FALSE;
+
+ for (i = drawing->xkb->min_key_code;
+ i <= drawing->xkb->max_key_code; i++)
+ if (drawing->keys[i].pressed) {
+ drawing->keys[i].pressed = FALSE;
+ draw_key (drawing->renderContext, drawing,
+ drawing->keys + i);
+ invalidate_key_region (drawing, drawing->keys + i);
+ }
+
+ return FALSE;
+}
+
+static gboolean
+gnome_keyboard_drawing_focus_event (GtkWidget *widget,
+ GdkEventFocus *event)
+{
+ GnomeKeyboardDrawing *drawing;
+
+ drawing = GNOME_KEYBOARD_DRAWING (widget);
+
+ if (event->in && drawing->timeout > 0) {
+ g_source_remove (drawing->timeout);
+ drawing->timeout = 0;
+ } else
+ drawing->timeout =
+ g_timeout_add (120, (GSourceFunc) unpress_keys,
+ drawing);
+
+ return FALSE;
+}
+
+static gint
+compare_keyboard_item_priorities (GnomeKeyboardDrawingItem * a,
+ GnomeKeyboardDrawingItem * b)
+{
+ if (a->priority > b->priority)
+ return 1;
+ else if (a->priority < b->priority)
+ return -1;
+ else
+ return 0;
+}
+
+static void
+init_indicator_doodad (GnomeKeyboardDrawing * drawing,
+ XkbDoodadRec * xkbdoodad,
+ GnomeKeyboardDrawingDoodad * doodad)
+{
+ if (!drawing->xkb)
+ return;
+
+ if (xkbdoodad->any.type == XkbIndicatorDoodad) {
+ gint index;
+ Atom iname = 0;
+ Atom sname = xkbdoodad->indicator.name;
+ unsigned long phys_indicators =
+ drawing->xkb->indicators->phys_indicators;
+ Atom *pind = drawing->xkb->names->indicators;
+
+#ifdef KBDRAW_DEBUG
+ printf ("Looking for %d[%s]\n",
+ (int) sname, XGetAtomName (drawing->display,
+ sname));
+#endif
+
+ for (index = 0; index < XkbNumIndicators; index++) {
+ iname = *pind++;
+ /* name matches and it is real */
+ if (iname == sname
+ && (phys_indicators & (1 << index)))
+ break;
+ if (iname == 0)
+ break;
+ }
+ if (iname == 0)
+ g_warning ("Could not find indicator %d [%s]\n",
+ (int) sname,
+ XGetAtomName (drawing->display, sname));
+ else {
+#ifdef KBDRAW_DEBUG
+ printf ("Found in xkbdesc as %d\n", index);
+#endif
+ drawing->physical_indicators[index] = doodad;
+ /* Trying to obtain the real state, but if fail - just assume OFF */
+ if (!XkbGetNamedIndicator
+ (drawing->display, sname, NULL, &doodad->on,
+ NULL, NULL))
+ doodad->on = 0;
+ }
+ }
+}
+
+static void
+init_keys_and_doodads (GnomeKeyboardDrawing * drawing)
+{
+ gint i, j, k;
+ gint x, y;
+
+ if (!drawing->xkb)
+ return;
+
+ for (i = 0; i < drawing->xkb->geom->num_doodads; i++) {
+ XkbDoodadRec *xkbdoodad = drawing->xkb->geom->doodads + i;
+ GnomeKeyboardDrawingDoodad *doodad =
+ g_new (GnomeKeyboardDrawingDoodad, 1);
+
+ doodad->type = GNOME_KEYBOARD_DRAWING_ITEM_TYPE_DOODAD;
+ doodad->origin_x = 0;
+ doodad->origin_y = 0;
+ doodad->angle = 0;
+ doodad->priority = xkbdoodad->any.priority * 256 * 256;
+ doodad->doodad = xkbdoodad;
+
+ init_indicator_doodad (drawing, xkbdoodad, doodad);
+
+ drawing->keyboard_items =
+ g_list_append (drawing->keyboard_items, doodad);
+ }
+
+ for (i = 0; i < drawing->xkb->geom->num_sections; i++) {
+ XkbSectionRec *section = drawing->xkb->geom->sections + i;
+ guint priority;
+
+#ifdef KBDRAW_DEBUG
+ printf ("initing section %d containing %d rows\n", i,
+ section->num_rows);
+#endif
+ x = section->left;
+ y = section->top;
+ priority = section->priority * 256 * 256;
+
+ for (j = 0; j < section->num_rows; j++) {
+ XkbRowRec *row = section->rows + j;
+
+#ifdef KBDRAW_DEBUG
+ printf (" initing row %d\n", j);
+#endif
+ x = section->left + row->left;
+ y = section->top + row->top;
+
+ for (k = 0; k < row->num_keys; k++) {
+ XkbKeyRec *xkbkey = row->keys + k;
+ GnomeKeyboardDrawingKey *key;
+ XkbShapeRec *shape =
+ drawing->xkb->geom->shapes +
+ xkbkey->shape_ndx;
+ guint keycode = find_keycode (drawing,
+ xkbkey->name.
+ name);
+
+ if (keycode == INVALID_KEYCODE)
+ continue;
+#ifdef KBDRAW_DEBUG
+ printf
+ (" initing key %d, shape: %p(%p + %d), code: %u\n",
+ k, shape, drawing->xkb->geom->shapes,
+ xkbkey->shape_ndx, keycode);
+#endif
+ if (row->vertical)
+ y += xkbkey->gap;
+ else
+ x += xkbkey->gap;
+
+ if (keycode >= drawing->xkb->min_key_code
+ && keycode <=
+ drawing->xkb->max_key_code) {
+ key = drawing->keys + keycode;
+ if (key->type ==
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_INVALID)
+ {
+ key->type =
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY;
+ } else {
+ /* duplicate key for the same keycode,
+ already defined as GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY */
+ key =
+ g_new0
+ (GnomeKeyboardDrawingKey,
+ 1);
+ key->type =
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY_EXTRA;
+ }
+ } else {
+ g_warning
+ ("key %4.4s: keycode = %u; not in range %d..%d\n",
+ xkbkey->name.name, keycode,
+ drawing->xkb->min_key_code,
+ drawing->xkb->max_key_code);
+
+ key =
+ g_new0 (GnomeKeyboardDrawingKey,
+ 1);
+ key->type =
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY_EXTRA;
+ }
+
+ key->xkbkey = xkbkey;
+ key->angle = section->angle;
+ rotate_coordinate (section->left,
+ section->top, x, y,
+ section->angle,
+ &key->origin_x,
+ &key->origin_y);
+ key->priority = priority;
+ key->keycode = keycode;
+
+ drawing->keyboard_items =
+ g_list_append (drawing->keyboard_items,
+ key);
+
+ if (row->vertical)
+ y += shape->bounds.y2;
+ else
+ x += shape->bounds.x2;
+
+ priority++;
+ }
+ }
+
+ for (j = 0; j < section->num_doodads; j++) {
+ XkbDoodadRec *xkbdoodad = section->doodads + j;
+ GnomeKeyboardDrawingDoodad *doodad =
+ g_new (GnomeKeyboardDrawingDoodad, 1);
+
+ doodad->type =
+ GNOME_KEYBOARD_DRAWING_ITEM_TYPE_DOODAD;
+ doodad->origin_x = x;
+ doodad->origin_y = y;
+ doodad->angle = section->angle;
+ doodad->priority =
+ priority + xkbdoodad->any.priority;
+ doodad->doodad = xkbdoodad;
+
+ init_indicator_doodad (drawing, xkbdoodad, doodad);
+
+ drawing->keyboard_items =
+ g_list_append (drawing->keyboard_items,
+ doodad);
+ }
+ }
+
+ drawing->keyboard_items = g_list_sort (drawing->keyboard_items,
+ (GCompareFunc)
+ compare_keyboard_item_priorities);
+}
+
+static void
+init_colors (GnomeKeyboardDrawing * drawing)
+{
+ gboolean result;
+ gint i;
+
+ if (!drawing->xkb)
+ return;
+
+ drawing->colors = g_new (GdkRGBA, drawing->xkb->geom->num_colors);
+
+ for (i = 0; i < drawing->xkb->geom->num_colors; i++) {
+ result =
+ parse_xkb_color_spec (drawing->xkb->geom->colors[i].
+ spec, drawing->colors + i);
+
+ if (!result)
+ g_warning
+ ("init_colors: unable to parse color %s\n",
+ drawing->xkb->geom->colors[i].spec);
+ }
+}
+
+static void
+free_cdik ( /*colors doodads indicators keys */
+ GnomeKeyboardDrawing * drawing)
+{
+ GList *itemp;
+
+ if (!drawing->xkb)
+ return;
+
+ for (itemp = drawing->keyboard_items; itemp; itemp = itemp->next) {
+ GnomeKeyboardDrawingItem *item = itemp->data;
+
+ switch (item->type) {
+ case GNOME_KEYBOARD_DRAWING_ITEM_TYPE_INVALID:
+ case GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY:
+ break;
+
+ case GNOME_KEYBOARD_DRAWING_ITEM_TYPE_KEY_EXTRA:
+ case GNOME_KEYBOARD_DRAWING_ITEM_TYPE_DOODAD:
+ g_free (item);
+ break;
+ }
+ }
+
+ g_list_free (drawing->keyboard_items);
+ drawing->keyboard_items = NULL;
+
+ g_free (drawing->keys);
+ g_free (drawing->colors);
+}
+
+static void
+alloc_cdik (GnomeKeyboardDrawing * drawing)
+{
+ drawing->physical_indicators_size =
+ drawing->xkb->indicators->phys_indicators + 1;
+ drawing->physical_indicators =
+ g_new0 (GnomeKeyboardDrawingDoodad *,
+ drawing->physical_indicators_size);
+ drawing->keys =
+ g_new0 (GnomeKeyboardDrawingKey,
+ drawing->xkb->max_key_code + 1);
+}
+
+static void
+process_indicators_state_notify (XkbIndicatorNotifyEvent * iev,
+ GnomeKeyboardDrawing * drawing)
+{
+ /* Good question: should we track indicators when the keyboard is
+ NOT really taken from the screen */
+ gint i;
+
+ for (i = 0; i <= drawing->xkb->indicators->phys_indicators; i++) {
+ if (drawing->physical_indicators[i] != NULL
+ && (iev->changed & 1 << i)) {
+ gint state = (iev->state & 1 << i) != FALSE;
+
+ if ((state && !drawing->physical_indicators[i]->on)
+ || (!state && drawing->physical_indicators[i]->on)) {
+ drawing->physical_indicators[i]->on = state;
+ invalidate_indicator_doodad_region (drawing,
+ drawing->physical_indicators[i]);
+ }
+ }
+ }
+}
+
+static GdkFilterReturn
+xkb_state_notify_event_filter (GdkXEvent *gdkxev,
+ GdkEvent *event,
+ GnomeKeyboardDrawing *drawing)
+{
+#define group_change_mask (XkbGroupStateMask | XkbGroupBaseMask | XkbGroupLatchMask | XkbGroupLockMask)
+#define modifier_change_mask (XkbModifierStateMask | XkbModifierBaseMask | XkbModifierLatchMask |
XkbModifierLockMask)
+
+ if (!drawing->xkb)
+ return GDK_FILTER_CONTINUE;
+
+ if (((XEvent *) gdkxev)->type == drawing->xkb_event_type) {
+ XkbEvent *kev = (XkbEvent *) gdkxev;
+
+ if (kev->any.xkb_type == XkbIndicatorStateNotify) {
+ process_indicators_state_notify (&kev->indicators,
+ drawing);
+ }
+ }
+
+ return GDK_FILTER_CONTINUE;
+}
+
+static void
+gnome_keyboard_drawing_dispose (GObject *object)
+{
+ GnomeKeyboardDrawing *drawing;
+
+ drawing = GNOME_KEYBOARD_DRAWING (object);
+
+ if (drawing->renderContext) {
+ free_render_context (drawing);
+ drawing->renderContext = NULL;
+ }
+
+ gdk_window_remove_filter (NULL, (GdkFilterFunc)
+ xkb_state_notify_event_filter, drawing);
+
+ if (drawing->timeout > 0) {
+ g_source_remove (drawing->timeout);
+ drawing->timeout = 0;
+ }
+
+ G_OBJECT_CLASS (gnome_keyboard_drawing_parent_class)->dispose (object);
+}
+
+static void
+gnome_keyboard_drawing_style_updated (GtkWidget *widget)
+{
+ GnomeKeyboardDrawing *drawing;
+
+ drawing = GNOME_KEYBOARD_DRAWING (widget);
+
+ pango_layout_context_changed (drawing->renderContext->layout);
+}
+
+static void
+gnome_keyboard_drawing_init (GnomeKeyboardDrawing * drawing)
+{
+ gint opcode = 0, error = 0, major = 1, minor = 0;
+ gint mask;
+
+ drawing->display =
+ GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
+
+ if (!XkbQueryExtension
+ (drawing->display, &opcode, &drawing->xkb_event_type, &error,
+ &major, &minor))
+ g_critical
+ ("XkbQueryExtension failed! Stuff probably won't work.");
+
+ /* XXX: this stuff probably doesn't matter.. also, gdk_screen_get_default can fail */
+ if (gtk_widget_has_screen (GTK_WIDGET (drawing)))
+ drawing->screen_num =
+ gdk_screen_get_number (gtk_widget_get_screen
+ (GTK_WIDGET (drawing)));
+ else
+ drawing->screen_num =
+ gdk_screen_get_number (gdk_screen_get_default ());
+
+ alloc_render_context (drawing);
+
+ drawing->keyboard_items = NULL;
+ drawing->colors = NULL;
+
+ gtk_widget_set_double_buffered (GTK_WIDGET (drawing), FALSE);
+ gtk_widget_set_has_window (GTK_WIDGET (drawing), FALSE);
+
+ /* XXX: XkbClientMapMask | XkbIndicatorMapMask | XkbNamesMask | XkbGeometryMask */
+ drawing->xkb = XkbGetKeyboard (drawing->display,
+ XkbGBN_GeometryMask |
+ XkbGBN_KeyNamesMask |
+ XkbGBN_OtherNamesMask |
+ XkbGBN_SymbolsMask |
+ XkbGBN_IndicatorMapMask,
+ XkbUseCoreKbd);
+ if (drawing->xkb == NULL) {
+ g_critical
+ ("XkbGetKeyboard failed to get keyboard from the server!");
+ return;
+ }
+
+ XkbGetNames (drawing->display, XkbAllNamesMask, drawing->xkb);
+ drawing->l3mod = XkbKeysymToModifiers (drawing->display,
+ GDK_KEY_ISO_Level3_Shift);
+
+ drawing->xkbOnDisplay = TRUE;
+
+ alloc_cdik (drawing);
+
+ XkbSelectEventDetails (drawing->display, XkbUseCoreKbd,
+ XkbIndicatorStateNotify,
+ drawing->xkb->indicators->phys_indicators,
+ drawing->xkb->indicators->phys_indicators);
+
+ mask =
+ (XkbStateNotifyMask | XkbNamesNotifyMask |
+ XkbControlsNotifyMask | XkbIndicatorMapNotifyMask |
+ XkbNewKeyboardNotifyMask);
+ XkbSelectEvents (drawing->display, XkbUseCoreKbd, mask, mask);
+
+ mask = XkbGroupStateMask | XkbModifierStateMask;
+ XkbSelectEventDetails (drawing->display, XkbUseCoreKbd,
+ XkbStateNotify, mask, mask);
+
+ mask = (XkbGroupNamesMask | XkbIndicatorNamesMask);
+ XkbSelectEventDetails (drawing->display, XkbUseCoreKbd,
+ XkbNamesNotify, mask, mask);
+ init_keys_and_doodads (drawing);
+ init_colors (drawing);
+
+ /* required to get key events */
+ gtk_widget_set_can_focus (GTK_WIDGET (drawing), TRUE);
+
+ gtk_widget_set_events (GTK_WIDGET (drawing),
+ GDK_EXPOSURE_MASK | GDK_KEY_PRESS_MASK |
+ GDK_KEY_RELEASE_MASK | GDK_BUTTON_PRESS_MASK
+ | GDK_FOCUS_CHANGE_MASK);
+
+ gdk_window_add_filter (NULL, (GdkFilterFunc)
+ xkb_state_notify_event_filter, drawing);
+}
+
+GtkWidget *
+gnome_keyboard_drawing_new (void)
+{
+ return g_object_new (GNOME_TYPE_KEYBOARD_DRAWING, NULL);
+}
+
+static GtkSizeRequestMode
+gnome_keyboard_drawing_get_request_mode (GtkWidget *widget)
+{
+ return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;
+}
+
+static void
+gnome_keyboard_drawing_get_preferred_width (GtkWidget *widget,
+ gint *minimum_width,
+ gint *natural_width)
+{
+ GdkRectangle rect;
+ gint w, monitor;
+ GdkDisplay *display = gtk_widget_get_display (widget);
+ GdkDeviceManager *gdm = gdk_display_get_device_manager (display);
+ GdkScreen *scr = NULL;
+ GList *devices =
+ gdk_device_manager_list_devices (gdm, GDK_SOURCE_KEYBOARD);
+
+ if (g_list_length (devices) > 0) {
+ gint x, y;
+ GdkDevice *dev = GDK_DEVICE (devices->data);
+ gdk_device_get_position (dev, &scr, &x, &y);
+ monitor = gdk_screen_get_monitor_at_point (scr, x, y);
+ } else {
+ scr = gdk_screen_get_default ();
+ monitor = gdk_screen_get_primary_monitor (scr);
+ }
+
+ gdk_screen_get_monitor_geometry (scr, monitor, &rect);
+ w = rect.width;
+ *minimum_width = *natural_width = w - (w >> 2);
+}
+
+static void
+gnome_keyboard_drawing_get_preferred_height_for_width (GtkWidget *widget,
+ gint width,
+ gint *minimum_height,
+ gint *natural_height)
+{
+ GnomeKeyboardDrawing *drawing = GNOME_KEYBOARD_DRAWING (widget);
+ *minimum_height = *natural_height =
+ width * drawing->xkb->geom->height_mm /
+ drawing->xkb->geom->width_mm;
+}
+
+static void
+gnome_keyboard_drawing_class_init (GnomeKeyboardDrawingClass * klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ object_class->dispose = gnome_keyboard_drawing_dispose;
+
+ widget_class->get_preferred_height_for_width = gnome_keyboard_drawing_get_preferred_height_for_width;
+ widget_class->get_preferred_width = gnome_keyboard_drawing_get_preferred_width;
+ widget_class->get_request_mode = gnome_keyboard_drawing_get_request_mode;
+ widget_class->size_allocate = gnome_keyboard_drawing_size_allocate;
+ widget_class->style_updated = gnome_keyboard_drawing_style_updated;
+ widget_class->draw = gnome_keyboard_drawing_draw;
+
+ widget_class->key_press_event = gnome_keyboard_drawing_key_event;
+ widget_class->key_release_event = gnome_keyboard_drawing_key_event;
+ widget_class->button_press_event = gnome_keyboard_drawing_button_press_event;
+ widget_class->focus_out_event = gnome_keyboard_drawing_focus_event;
+ widget_class->focus_in_event = gnome_keyboard_drawing_focus_event;
+
+ gnome_keyboard_drawing_signals[BAD_KEYCODE] =
+ g_signal_new ("bad-keycode",
+ GNOME_TYPE_KEYBOARD_DRAWING,
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GnomeKeyboardDrawingClass,
+ bad_keycode),
+ NULL, NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 1,
+ G_TYPE_UINT);
+}
+
+static gboolean
+gnome_keyboard_drawing_render (GnomeKeyboardDrawing *kbdrawing,
+ cairo_t *cr,
+ PangoLayout *layout,
+ double x,
+ double y,
+ double width,
+ double height,
+ double dpi_x,
+ double dpi_y)
+{
+ GtkStateFlags state =
+ gtk_widget_get_state_flags (GTK_WIDGET (kbdrawing));
+ GtkStyleContext *style_context =
+ gtk_widget_get_style_context (GTK_WIDGET (kbdrawing));
+ GnomeKeyboardDrawingRenderContext context = {
+ cr,
+ kbdrawing->renderContext->angle,
+ layout,
+ pango_font_description_copy (gtk_widget_get_style
+ (GTK_WIDGET
+ (kbdrawing))->font_desc),
+ 1, 1
+ };
+
+ gtk_style_context_get_background_color (style_context, state,
+ &context.dark_color);
+
+ if (!context_setup_scaling (&context, kbdrawing, width, height,
+ dpi_x, dpi_y))
+ return FALSE;
+ cairo_translate (cr, x, y);
+
+ draw_keyboard_to_context (&context, kbdrawing);
+
+ pango_font_description_free (context.font_desc);
+
+ return TRUE;
+}
+
+static void
+gnome_keyboard_drawing_set_keyboard (GnomeKeyboardDrawing * drawing,
+ XkbComponentNamesRec * names)
+{
+ free_cdik (drawing);
+ if (drawing->xkb)
+ XkbFreeKeyboard (drawing->xkb, 0, TRUE); /* free_all = TRUE */
+ drawing->xkb = NULL;
+
+ if (names) {
+ drawing->xkb =
+ XkbGetKeyboardByName (drawing->display, XkbUseCoreKbd,
+ names, 0,
+ XkbGBN_GeometryMask |
+ XkbGBN_KeyNamesMask |
+ XkbGBN_OtherNamesMask |
+ XkbGBN_ClientSymbolsMask |
+ XkbGBN_IndicatorMapMask, FALSE);
+ drawing->xkbOnDisplay = FALSE;
+ } else {
+ drawing->xkb = XkbGetKeyboard (drawing->display,
+ XkbGBN_GeometryMask |
+ XkbGBN_KeyNamesMask |
+ XkbGBN_OtherNamesMask |
+ XkbGBN_SymbolsMask |
+ XkbGBN_IndicatorMapMask,
+ XkbUseCoreKbd);
+ XkbGetNames (drawing->display, XkbAllNamesMask,
+ drawing->xkb);
+ drawing->xkbOnDisplay = TRUE;
+ }
+
+ if (drawing->xkb == NULL)
+ return;
+
+ alloc_cdik (drawing);
+
+ init_keys_and_doodads (drawing);
+ init_colors (drawing);
+
+ gtk_widget_queue_resize (GTK_WIDGET (drawing));
+}
+
+typedef struct {
+ GnomeKeyboardDrawing *drawing;
+ const gchar *description;
+} XkbLayoutPreviewPrintData;
+
+static void
+gnome_keyboard_drawing_begin_print (GtkPrintOperation *operation,
+ GtkPrintContext *context,
+ XkbLayoutPreviewPrintData *data)
+{
+ /* We always print single-page documents */
+ GtkPrintSettings *settings =
+ gtk_print_operation_get_print_settings (operation);
+ gtk_print_operation_set_n_pages (operation, 1);
+ if (!gtk_print_settings_has_key
+ (settings, GTK_PRINT_SETTINGS_ORIENTATION))
+ gtk_print_settings_set_orientation (settings,
+ GTK_PAGE_ORIENTATION_LANDSCAPE);
+}
+
+static void
+gnome_keyboard_drawing_draw_page (GtkPrintOperation *operation,
+ GtkPrintContext *context,
+ gint page_nr,
+ XkbLayoutPreviewPrintData *data)
+{
+ cairo_t *cr = gtk_print_context_get_cairo_context (context);
+ PangoLayout *layout =
+ gtk_print_context_create_pango_layout (context);
+ PangoFontDescription *desc =
+ pango_font_description_from_string ("sans 8");
+ gdouble width = gtk_print_context_get_width (context);
+ gdouble height = gtk_print_context_get_height (context);
+ gdouble dpi_x = gtk_print_context_get_dpi_x (context);
+ gdouble dpi_y = gtk_print_context_get_dpi_y (context);
+ gchar *header;
+
+ gtk_print_operation_set_unit (operation, GTK_UNIT_PIXEL);
+
+ header = g_strdup_printf
+ (_("Keyboard layout \"%s\"\n"
+ "Copyright © X.Org Foundation and "
+ "XKeyboardConfig contributors\n"
+ "For licensing see package metadata"), data->description);
+ pango_layout_set_markup (layout, header, -1);
+ pango_layout_set_font_description (layout, desc);
+ pango_font_description_free (desc);
+ pango_layout_set_width (layout, pango_units_from_double (width));
+ pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
+ cairo_set_source_rgb (cr, 0, 0, 0);
+ cairo_move_to (cr, 0, 0);
+ pango_cairo_show_layout (cr, layout);
+
+ gnome_keyboard_drawing_render (data->drawing, cr, layout, 0.0,
+ 0.0, width, height, dpi_x, dpi_y);
+
+ g_object_unref (layout);
+}
+
+void
+gnome_keyboard_drawing_print (GnomeKeyboardDrawing *drawing,
+ GtkWindow *parent_window,
+ const gchar *description)
+{
+ GtkPrintOperation *print;
+ GtkPrintOperationResult res;
+ static GtkPrintSettings *settings = NULL;
+ XkbLayoutPreviewPrintData data = { drawing, description };
+
+ print = gtk_print_operation_new ();
+
+ if (settings != NULL)
+ gtk_print_operation_set_print_settings (print, settings);
+
+ g_signal_connect (print, "begin_print",
+ G_CALLBACK (gnome_keyboard_drawing_begin_print),
+ &data);
+ g_signal_connect (print, "draw_page",
+ G_CALLBACK (gnome_keyboard_drawing_draw_page),
+ &data);
+
+ res = gtk_print_operation_run (print,
+ GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
+ parent_window, NULL);
+
+ if (res == GTK_PRINT_OPERATION_RESULT_APPLY) {
+ if (settings != NULL)
+ g_object_unref (settings);
+ settings = gtk_print_operation_get_print_settings (print);
+ g_object_ref (settings);
+ }
+
+ g_object_unref (print);
+}
+
+static void
+free_components (XkbComponentNamesRec *components)
+{
+ free (components->keymap);
+ free (components->keycodes);
+ free (components->types);
+ free (components->compat);
+ free (components->symbols);
+ free (components->geometry);
+}
+
+void
+gnome_keyboard_drawing_set_layout (GnomeKeyboardDrawing *drawing,
+ const char *layout,
+ const char *variant)
+{
+ XkbRF_VarDefsRec *var_defs;
+ const char *locale;
+ char *rules_file;
+ XkbRF_RulesPtr rules;
+ XkbComponentNamesRec component_names;
+
+ gnome_xkb_info_get_var_defs (&rules_file, &var_defs);
+
+ if (var_defs->layout)
+ free (var_defs->layout);
+ if (var_defs->variant)
+ free (var_defs->variant);
+
+ var_defs->layout = strdup (layout);
+ var_defs->variant = strdup (variant);
+
+ locale = setlocale (LC_ALL, NULL);
+ rules = XkbRF_Load (rules_file, (char*) locale, True, True);
+
+ if (!rules) {
+ g_warning ("Failed to load XKB rules file %s", rules_file);
+
+ goto out;
+ }
+
+ XkbRF_GetComponents (rules, var_defs, &component_names);
+
+ gnome_keyboard_drawing_set_keyboard (drawing, &component_names);
+
+ out:
+ g_free (rules_file);
+ gnome_xkb_info_free_var_defs (var_defs);
+ free_components (&component_names);
+}
diff --git a/libgnome-desktop/gnome-keyboard-drawing.h b/libgnome-desktop/gnome-keyboard-drawing.h
new file mode 100644
index 0000000..c1e703f
--- /dev/null
+++ b/libgnome-desktop/gnome-keyboard-drawing.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2006 Sergey V. Udaltsov <svu 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _GNOME_KEYBOARD_DRAWING_H
+#define _GNOME_KEYBOARD_DRAWING_H
+
+#ifndef GNOME_DESKTOP_USE_UNSTABLE_API
+#error This is unstable API. You must define GNOME_DESKTOP_USE_UNSTABLE_API before including
gnome-xkb-info.h
+#endif
+
+#include <gtk/gtk.h>
+#include <X11/XKBlib.h>
+#include <X11/extensions/XKBgeom.h>
+#include <libxklavier/xklavier.h>
+
+G_BEGIN_DECLS
+
+#define GNOME_TYPE_KEYBOARD_DRAWING (gnome_keyboard_drawing_get_type ())
+#define GNOME_KEYBOARD_DRAWING(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GNOME_TYPE_KEYBOARD_DRAWING,
GnomeKeyboardDrawing))
+#define GNOME_KEYBOARD_DRAWING_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GNOME_TYPE_KEYBOARD_DRAWING,
GnomeKeyboardDrawingClass))
+#define GNOME_IS_KEYBOARD_DRAWING(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), GNOME_TYPE_KEYBOARD_DRAWING)
+
+typedef struct _GnomeKeyboardDrawing GnomeKeyboardDrawing;
+typedef struct _GnomeKeyboardDrawingClass GnomeKeyboardDrawingClass;
+
+GType gnome_keyboard_drawing_get_type (void) G_GNUC_CONST;
+
+GtkWidget *gnome_keyboard_drawing_new (void);
+
+void gnome_keyboard_drawing_set_layout (GnomeKeyboardDrawing *kbdrawing,
+ const char *layout,
+ const char *variant);
+
+void gnome_keyboard_drawing_print (GnomeKeyboardDrawing *drawing,
+ GtkWindow *parent_window,
+ const gchar *description);
+
+G_END_DECLS
+
+#endif /* #ifndef _GNOME_KEYBOARD_DRAWING_H */
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