On Wed, Oct 31, 2012 at 02:18:43PM +0100, Olivier Fourdan wrote:
> Reimplement the SVG validation using libxml instead of librsvg.
>
> SVG validation should check for the ID and classes of each control
> (to avoid the error Jason pointed out initially with one of the SVG
> image), but librsvg is not the best tool for this, so reimplemented
> the SVG validation using libxml2 instead.
>
> Patch updated.
> >From 1cd785495d65b8ff133a91dfcbbfddb2d5032ff9 Mon Sep 17 00:00:00 2001
> From: Olivier Fourdan <ofour...@redhat.com>
> Date: Mon, 29 Oct 2012 18:08:27 +0100
> Subject: [PATCH 3/4] tools: add tablet image viewer
> test: add image validation
>
> for tablet images.
>
> Built is optional and depends on availability of GTK+-2.x
> librsvg-2.x and libxml-2.0 libraries.
> ---
> configure.ac | 6 +
> test/Makefile.am | 7 +
> test/tablet-svg-validity.c | 242 +++++++++++++++++++++++++++
> tools/Makefile.am | 8 +
> tools/show-svg-image.c | 389
> ++++++++++++++++++++++++++++++++++++++++++++
> 5 files changed, 652 insertions(+), 0 deletions(-)
> create mode 100644 test/tablet-svg-validity.c
> create mode 100644 tools/show-svg-image.c
Please make sure you always have -Wall in your CFLAGS. THe show-svg-image
tool generates 15 warnings here. tablet-svg-validity has a few as well.
Cheers,
Peter
> diff --git a/configure.ac b/configure.ac
> index 3fd7aa9..9b3ed73 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -32,6 +32,12 @@ AM_CONDITIONAL(HAVE_DOXYGEN, test "x$HAVE_DOXYGEN" = xyes)
>
> PKG_CHECK_MODULES(GLIB, glib-2.0 gudev-1.0)
>
> +PKG_CHECK_MODULES(LIBXML, libxml-2.0 glib-2.0, HAVE_LIBXML="yes",
> HAVE_LIBXML="no")
> +AM_CONDITIONAL(HAVE_LIBXML, test x$HAVE_LIBXML = xyes)
> +
> +PKG_CHECK_MODULES(GTK2, librsvg-2.0 glib-2.0 gtk+-2.0, HAVE_GTK2="yes",
> HAVE_GTK2="no")
> +AM_CONDITIONAL(HAVE_GTK2, test x$HAVE_GTK2 = xyes)
> +
> AC_CONFIG_FILES([Makefile
> data/Makefile
> data/images/Makefile
> diff --git a/test/Makefile.am b/test/Makefile.am
> index 6be4403..6b71c85 100644
> --- a/test/Makefile.am
> +++ b/test/Makefile.am
> @@ -8,6 +8,13 @@ load_LDADD=$(top_builddir)/libwacom/libwacom.la
> dbverify_LDADD=$(top_builddir)/libwacom/libwacom.la
> tablet_validity_LDADD=$(top_builddir)/libwacom/libwacom.la
>
> +if HAVE_LIBXML
> +noinst_PROGRAMS += tablet-svg-validity
> +tablet_svg_validity_SOURCES = tablet-svg-validity.c
> +tablet_svg_validity_LDADD = $(top_builddir)/libwacom/libwacom.la
> $(LIBXML_LIBS)
> +tablet_svg_validity_CFLAGS = $(LIBXML_CFLAGS)
> +endif
> +
> clean-local: clean-local-check
> .PHONY: clean-local-check
>
> diff --git a/test/tablet-svg-validity.c b/test/tablet-svg-validity.c
> new file mode 100644
> index 0000000..f3eb0e3
> --- /dev/null
> +++ b/test/tablet-svg-validity.c
> @@ -0,0 +1,242 @@
> +/*
> + * Copyright ?? 2012 Red Hat, Inc.
> + *
> + * Permission to use, copy, modify, distribute, and sell this software
> + * and its documentation for any purpose is hereby granted without
> + * fee, provided that the above copyright notice appear in all copies
> + * and that both that copyright notice and this permission notice
> + * appear in supporting documentation, and that the name of Red Hat
> + * not be used in advertising or publicity pertaining to distribution
> + * of the software without specific, written prior permission. Red
> + * Hat makes no representations about the suitability of this software
> + * for any purpose. It is provided "as is" without express or implied
> + * warranty.
> + *
> + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
> + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
> + * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
> + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
> + * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
> + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
> + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> + *
> + * Authors:
> + * Olivier Fourdan <ofour...@redhat.com>
> + */
> +
> +#ifdef HAVE_CONFIG_H
> +#include "config.h"
> +#endif
> +
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <unistd.h>
> +
> +#include <libxml/parser.h>
> +#include <libxml/xmlmemory.h>
> +#include <glib.h>
> +#include "libwacom.h"
> +
> +static xmlNodePtr
> +verify_has_sub (xmlNodePtr cur, char *sub)
> +{
> +
> + cur = cur->xmlChildrenNode;
> + while (cur != NULL) {
> + xmlChar *prop;
> + prop = xmlGetProp(cur, "id");
> + if (prop) {
> + int status = xmlStrcmp(prop, (const xmlChar *) sub);
> + xmlFree(prop);
> + if (status == 0)
> + return cur;
> + }
> + cur = cur->next;
> + }
> +
> + return NULL;
> +}
> +
> +static gboolean
> +class_found (gchar **classes, gchar *value)
> +{
> + gchar **ptr = classes;
> + while (*ptr) {
> + if (strcmp (*ptr++, value) == 0)
> + return TRUE;
> + }
> +
> + return FALSE;
> +}
> +
> +static void
> +verify_has_class (xmlNodePtr cur, gchar *expected)
> +{
> +
> + xmlChar *prop;
> + gchar **classes_present;
> + gchar **classes_expected;
> + gchar **ptr;
> +
> + prop = xmlGetProp(cur, "class");
> + g_assert (prop != NULL);
> + g_assert (strlen(prop) > 0);
> +
> + classes_present = g_strsplit (prop, " ", -1);
> + classes_expected = g_strsplit (expected, " ", -1);
> + ptr = classes_expected;
> +
> + while (*ptr)
> + g_assert (class_found (classes_present, *ptr++));
> +
> + g_strfreev (classes_present);
> + g_strfreev (classes_expected);
> +}
> +
> +static void
> +check_button (xmlNodePtr cur, WacomDevice *device, char button, gchar *type)
> +{
> + char *sub;
> + char *class;
> + xmlNodePtr node;
> + WacomButtonFlags flags;
> +
> + /* Check ID */
> + sub = g_strdup_printf ("%s%c", type, button);
> + node = verify_has_sub (cur, sub);
> + g_assert (node != NULL);
> + g_free (sub);
> +
> + /* Check class */
> + flags = libwacom_get_button_flag(device, button);
> + if (flags & WACOM_BUTTON_MODESWITCH)
> + class = g_strdup_printf ("%c ModeSwitch %s", button, type);
> + else
> + class = g_strdup_printf ("%c %s", button, type);
> + verify_has_class (node, class);
> + g_free (class);
> +}
> +
> +static void
> +check_touch (xmlNodePtr cur, gchar *id, gchar *type)
> +{
> + char *sub;
> + char *class;
> + xmlNodePtr node;
> + WacomButtonFlags flags;
> +
> + node = verify_has_sub (cur, id);
> + g_assert (node != NULL);
> +
> + class = g_strdup_printf ("%s %s", id, type);
> + verify_has_class (node, class);
> + g_free (class);
> +
> + sub = g_strdup_printf ("Label%sUp", id);
> + node = verify_has_sub (cur, sub);
> + g_assert (node != NULL);
> + g_free (sub);
> +
> + class = g_strdup_printf ("%sUp %s Label", id, id);
> + verify_has_class (node, class);
> + g_free (class);
> +
> + sub = g_strdup_printf ("Label%sDown", id);
> + node = verify_has_sub (cur, sub);
> + g_assert (node != NULL);
> + g_free (sub);
> +
> + class = g_strdup_printf ("%sDown %s Label", id, id);
> + verify_has_class (node, class);
> + g_free (class);
> +}
> +
> +static void
> +verify_tablet_image (WacomDeviceDatabase *db, WacomDevice *device)
> +{
> + const char *name;
> + const char *filename;
> + xmlChar *prop;
> + xmlDocPtr doc;
> + xmlNodePtr cur;
> + xmlNodePtr node;
> + char button;
> + int num_buttons;
> + char *class;
> +
> + name = libwacom_get_name(device);
> + if (strcmp(name, "Generic") == 0)
> + return;
> +
> + filename = libwacom_get_image_filename(device);
> + if (filename == NULL)
> + return;
> +
> + g_message ("Verifying device '%s', SVG file '%s'", name, filename);
> +
> + doc = xmlParseFile(filename);
> + g_assert (doc != NULL );
> +
> + cur = xmlDocGetRootElement(doc);
> + g_assert (cur != NULL);
> +
> + /* Check we got an SVG image */
> + g_assert (xmlStrcmp(cur->name, (const xmlChar *) "svg") == 0);
> +
> + /* width is provided */
> + prop = xmlGetProp(cur, "width") ;
> + g_assert (prop != NULL);
> + xmlFree(prop);
> +
> + /* height is provided */
> + prop = xmlGetProp(cur, "height") ;
> + g_assert (prop != NULL);
> + xmlFree(prop);
> +
> + num_buttons = libwacom_get_num_buttons (device);
> + for (button = 'A'; button < 'A' + num_buttons; button++) {
> + check_button (cur, device, button, "Button");
> + check_button (cur, device, button, "Label");
> + }
> +
> + /* Touch rings */
> + if (libwacom_has_ring(device))
> + check_touch (cur, "Ring", "TouchRing");
> + if (libwacom_has_ring2(device))
> + check_touch (cur, "Ring2", "TouchRing");
> + /* Touch strips */
> + if (libwacom_get_num_strips(device) > 0)
> + check_touch (cur, "Strip", "TouchStrip");
> + if (libwacom_get_num_strips(device) > 1)
> + check_touch (cur, "Strip2", "TouchStrip");
> +
> + xmlFreeDoc(doc);
> +
> + return;
> +}
> +
> +
> +int main(int argc, char **argv)
> +{
> + WacomDeviceDatabase *db;
> + WacomDevice **device, **devices;
> +
> + g_type_init ();
> + db = libwacom_database_new_for_path(TOPSRCDIR"/data");
> + if (!db)
> + printf("Failed to load data from %s", TOPSRCDIR"/data");
> + g_assert(db);
> +
> + devices = libwacom_list_devices_from_database(db, NULL);
> + g_assert(devices);
> + g_assert(*devices);
> +
> + for (device = devices; *device; device++)
> + verify_tablet_image(db, *device);
> +
> + libwacom_database_destroy (db);
> +
> + return 0;
> +}
> +
> diff --git a/tools/Makefile.am b/tools/Makefile.am
> index c204ab0..94fe401 100644
> --- a/tools/Makefile.am
> +++ b/tools/Makefile.am
> @@ -1,6 +1,7 @@
> AM_CPPFLAGS=-I$(top_srcdir)/libwacom -DTOPSRCDIR="\"$(top_srcdir)\""
>
> noinst_PROGRAMS = generate-udev-rules list-devices
> +
> generate_udev_rules_SOURCES = generate-udev-rules.c
> generate_udev_rules_LDADD=$(top_builddir)/libwacom/libwacom.la $(GLIB_LIBS)
> generate_udev_rules_CFLAGS=$(GLIB_CFLAGS)
> @@ -13,3 +14,10 @@ libwacom_list_local_devices_SOURCES = list-local-devices.c
> libwacom_list_local_devices_LDADD=$(top_builddir)/libwacom/libwacom.la
> $(GLIB_LIBS)
> libwacom_list_local_devices_CFLAGS=$(GLIB_CFLAGS)
>
> +if HAVE_GTK2
> +noinst_PROGRAMS += show-svg-image
> +show_svg_image_SOURCES = show-svg-image.c
> +show_svg_image_LDADD = $(top_builddir)/libwacom/libwacom.la $(GTK2_LIBS)
> +show_svg_image_CFLAGS = $(GTK2_CFLAGS)
> +endif
> +
> diff --git a/tools/show-svg-image.c b/tools/show-svg-image.c
> new file mode 100644
> index 0000000..0792541
> --- /dev/null
> +++ b/tools/show-svg-image.c
> @@ -0,0 +1,389 @@
> +/*
> + * Copyright ?? 2012 Red Hat, Inc.
> + *
> + * Permission to use, copy, modify, distribute, and sell this software
> + * and its documentation for any purpose is hereby granted without
> + * fee, provided that the above copyright notice appear in all copies
> + * and that both that copyright notice and this permission notice
> + * appear in supporting documentation, and that the name of Red Hat
> + * not be used in advertising or publicity pertaining to distribution
> + * of the software without specific, written prior permission. Red
> + * Hat makes no representations about the suitability of this software
> + * for any purpose. It is provided "as is" without express or implied
> + * warranty.
> + *
> + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
> + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
> + * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
> + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
> + * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
> + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
> + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> + *
> + * Authors:
> + * Olivier Fourdan <ofour...@redhat.com>
> + */
> +
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +
> +#include <glib.h>
> +#include <gdk/gdkx.h>
> +#include <gtk/gtk.h>
> +#include <cairo.h>
> +#include <librsvg/rsvg.h>
> +#include "libwacom.h"
> +
> +
> +#define INACTIVE_COLOR "#2d2d2d"
> +#define ACTIVE_COLOR "#ffffff"
> +#define STROKE_COLOR "#b4b4b4"
> +#define DARK_COLOR "#141414"
> +#define BACK_COLOR "#000000"
> +
> +/* Convenient struct to store our stuff around */
> +typedef struct
> +{
> + RsvgHandle *handle;
> + GtkWidget *widget;
> + guint timeout;
> + WacomDevice *device;
> + GdkRectangle area;
> + char active_button;
> + int num_buttons;
> +} Tablet;
> +
> +static gboolean
> +get_sub_location (cairo_t *cairo_context, RsvgHandle *handle, const char
> *sub, double *x, double *y, double *width, double *height)
> +{
> + if (x || y) {
> + RsvgPositionData position;
> + double tx, ty;
> +
> + if (!rsvg_handle_get_position_sub (handle, &position, sub)) {
> + g_warning ("Failed to retrieve '%s' position", sub);
> + return FALSE;
> + }
> +
> + tx = (double) position.x;
> + ty = (double) position.y;
> + cairo_user_to_device (cairo_context, &tx, &ty);
> +
> + if (x)
> + *x = tx;
> + if (y)
> + *y = ty;
> + }
> +
> + if (width || height) {
> + RsvgDimensionData dimensions;
> + double twidth, theight;
> +
> + if (!rsvg_handle_get_dimensions_sub (handle, &dimensions, sub))
> {
> + g_warning ("Failed to retrieve '%s' dimension", sub);
> + return FALSE;
> + }
> +
> + twidth = (double) dimensions.width;
> + theight = (double) dimensions.height;
> + cairo_user_to_device_distance (cairo_context, &twidth,
> &theight);
> +
> + if (width)
> + *width = twidth;
> + if (height)
> + *height = theight;
> + }
> +
> + return TRUE;
> +}
> +
> +static void
> +print_button_labels (cairo_t *cairo_context, Tablet *tablet)
> +{
> + char button;
> + GtkWidget *widget;
> + GtkAllocation allocation;
> +
> + widget = GTK_WIDGET(tablet->widget);
> + gtk_widget_get_allocation(widget, &allocation);
> +
> + for (button = 'A'; button < 'A' + tablet->num_buttons; button++) {
> + WacomButtonFlags flags;
> + GtkStyle *style;
> + PangoContext *pango_context;
> + PangoLayout *pango_layout;
> + PangoRectangle pango_rect;
> + double label_x, label_y;
> + double btn_x, btn_y, btn_width, btn_height;
> + int x, y;
> + gchar *sub;
> + gchar *markup;
> +
> + flags = libwacom_get_button_flag(tablet->device, button);
> + sub = g_strdup_printf ("#Label%c", button);
> + if (!get_sub_location (cairo_context, tablet->handle, sub,
> &label_x, &label_y, NULL, NULL)) {
> + g_warning ("Failed to retrieve %s position", sub);
> + goto next;
> + }
> +
> + /* Write the label */
> + style = gtk_widget_get_style (widget);
> + pango_context = gtk_widget_get_pango_context (widget);
> + pango_layout = pango_layout_new (pango_context);
> + if (button == tablet->active_button)
> + markup = g_strdup_printf ("<span foreground=\""
> ACTIVE_COLOR "\" weight=\"bold\">Button %c</span>", button);
> + else
> + markup = g_strdup_printf ("<span foreground=\""
> INACTIVE_COLOR "\" weight=\"bold\">Button %c</span>", button);
> + pango_layout_set_markup (pango_layout, markup, -1);
> + g_free (markup);
> +
> + pango_layout_get_pixel_extents (pango_layout, NULL,
> &pango_rect);
> +
> + if (flags & WACOM_BUTTON_POSITION_LEFT) {
> + pango_layout_set_alignment (pango_layout,
> PANGO_ALIGN_LEFT);
> + x = (int) label_x;
> + y = (int) label_y + pango_rect.height / 2;
> + } else if (flags & WACOM_BUTTON_POSITION_RIGHT) {
> + pango_layout_set_alignment (pango_layout,
> PANGO_ALIGN_RIGHT);
> + x = (int) label_x - pango_rect.width;
> + y = (int) label_y + pango_rect.height / 2;
> +
> + } else {
> + pango_layout_set_alignment (pango_layout,
> PANGO_ALIGN_CENTER);
> + x = (int) label_x - pango_rect.width / 2;
> + y = (int) label_y;
> + }
> +
> + gtk_paint_layout (style,
> + gtk_widget_get_window (widget),
> + 0,
> + TRUE,
> + &allocation,
> + widget,
> + NULL,
> + x,
> + y,
> + pango_layout);
> +
> + g_object_unref (pango_layout);
> +next:
> + g_free (sub);
> + }
> +}
> +
> +static void
> +update_tablet (Tablet *tablet)
> +{
> + char *width, *height;
> + char button;
> + GError *error;
> + guint8 *data;
> +
> + if (tablet->handle)
> + g_object_unref (tablet->handle);
> +
> + width = g_strdup_printf ("%d", tablet->area.width);
> + height = g_strdup_printf ("%d", tablet->area.height);
> +
> + data = g_strconcat ("<?xml version=\"1.0\" encoding=\"UTF-8\"
> standalone=\"no\"?>\n"
> + "<svg version=\"1.1\"\n"
> + " xmlns=\"http://www.w3.org/2000/svg\"\n";
> + "
> xmlns:xi=\"http://www.w3.org/2001/XInclude\"\n";
> + " width=\"", width, "\"\n"
> + " height=\"", height, "\">\n"
> + " <style type=\"text/css\">\n"
> + " * {\n"
> + " stroke: ", STROKE_COLOR," !important;\n"
> + " fill: ", INACTIVE_COLOR," !important;\n"
> + " }\n",
> + NULL);
> + g_free (width);
> + g_free (height);
> +
> + for (button = 'A'; button < 'A' + tablet->num_buttons; button++) {
> + gchar class[] = {button, '\0'};
> + if (button == tablet->active_button) {
> + data = g_strconcat (data,
> + " .", class, " {\n"
> + " stroke: ", STROKE_COLOR,"
> !important;\n"
> + " fill: ", button ==
> tablet->active_button ? ACTIVE_COLOR : INACTIVE_COLOR, " !important;\n"
> + " }\n",
> + NULL);
> + }
> + }
> +
> + /* Hide the existing labels */
> + data = g_strconcat (data,
> + " .Label {\n"
> + " stroke: none !important;\n"
> + " fill: ", BACK_COLOR, " !important;\n"
> + " }\n",
> + " .TouchStrip,.TouchRing {\n"
> + " stroke: ", INACTIVE_COLOR," !important;\n"
> + " fill: ", DARK_COLOR, " !important;\n"
> + " }\n",
> + " </style>\n"
> + " <xi:include href=\"",
> libwacom_get_image_filename (tablet->device), "\"/>\n"
> + "</svg>",
> + NULL);
> +
> + tablet->handle = rsvg_handle_new_from_data (data, strlen(data), &error);
> + g_free (data);
> +}
> +
> +static void
> +on_expose_cb (GtkWidget *widget, GdkEvent *event, Tablet *tablet)
> +{
> + GdkEventExpose *expose_event;
> + GtkAllocation allocation;
> + cairo_t *cairo_context;
> + float scale;
> + double twidth, theight;
> +
> + expose_event = (GdkEventExpose *) event;
> +
> + if (tablet->handle == NULL)
> + update_tablet (tablet);
> +
> + /* Create a Cairo for the widget */
> + cairo_context = gdk_cairo_create (gtk_widget_get_window (widget));
> + cairo_set_operator (cairo_context, CAIRO_OPERATOR_CLEAR);
> + cairo_paint (cairo_context);
> + cairo_set_operator (cairo_context, CAIRO_OPERATOR_OVER);
> +
> + /* Scale to fit in window */
> + gtk_widget_get_allocation(widget, &allocation);
> + scale = MIN ((float) allocation.width / tablet->area.width,
> + (float) allocation.height / tablet->area.height);
> + cairo_scale (cairo_context, scale, scale);
> +
> + /* Center the result in window */
> + twidth = (double) tablet->area.width;
> + theight = (double) tablet->area.height;
> + cairo_user_to_device_distance (cairo_context, &twidth, &theight);
> + twidth = ((double) allocation.width - twidth) / 2.0;
> + theight = ((double) allocation.height - theight) / 2.0;
> + cairo_device_to_user_distance (cairo_context, &twidth, &theight);
> + cairo_translate (cairo_context, twidth, theight);
> +
> + /* And render the tablet image */
> + rsvg_handle_render_cairo (tablet->handle, cairo_context);
> + print_button_labels (cairo_context, tablet);
> + cairo_destroy (cairo_context);
> +}
> +
> +static gboolean
> +on_timer_cb (Tablet *tablet)
> +{
> + GtkAllocation allocation;
> + GdkRectangle rect;
> + int num_buttons;
> +
> + tablet->active_button++;
> + num_buttons = libwacom_get_num_buttons (tablet->device);
> + if (tablet->active_button >= 'A' + num_buttons)
> + tablet->active_button = 'A';
> + update_tablet (tablet);
> + gtk_widget_get_allocation (GTK_WIDGET(tablet->widget), &allocation);
> + gdk_window_invalidate_rect(gtk_widget_get_window (tablet->widget),
> &allocation, FALSE);
> +
> + return TRUE;
> +}
> +
> +static gboolean
> +on_delete_cb (GtkWidget *widget, GdkEvent *event, Tablet *tablet)
> +{
> + gtk_main_quit ();
> +
> + return TRUE;
> +}
> +
> +int
> +main (int argc, char **argv)
> +{
> + GOptionContext *context;
> + RsvgHandle *handle;
> + RsvgDimensionData dimensions;
> + GError *error;
> + WacomDeviceDatabase *db;
> + WacomDevice *device;
> + Tablet *tablet;
> + GtkWidget *widget;
> + GdkWindow *gdk_win;
> + GdkColor black;
> + char *tabletname;
> + const char *filename;
> + GOptionEntry
> + options[] = {
> + {"tablet", 't', 0, G_OPTION_ARG_STRING, &tabletname,
> "Name of the tablet to show", "<string>"},
> + {NULL}
> + };
> +
> + handle = NULL;
> + error = NULL;
> + tabletname = NULL;
> +
> + context = g_option_context_new ("- libwacom tablet viewer");
> + g_option_context_add_main_entries (context, options, NULL);
> + g_option_context_add_group (context, gtk_get_option_group (TRUE));
> + g_option_context_set_help_enabled (context, TRUE);
> + g_option_context_parse (context, &argc, &argv, NULL);
> + g_option_context_free (context);
> +
> + gtk_init (&argc, &argv);
> + if (tabletname == NULL) {
> + g_warning ("No tablet name provided, exiting");
> + return 1;
> + }
> + db = libwacom_database_new_for_path(TOPSRCDIR"/data");
> + if (!db) {
> + g_warning ("Failed to load libwacom database, exiting");
> + return 1;
> + }
> + device = libwacom_new_from_name(db, tabletname, NULL);
> + if (!device) {
> + g_warning ("Device '%s' not found in libwacom database,
> exiting", tabletname);
> + return 1;
> + }
> +
> + filename = libwacom_get_image_filename(device);
> + if (filename == NULL) {
> + g_warning ("Device '%s' has no image available, exiting",
> tabletname);
> + return 1;
> + }
> + handle = rsvg_handle_new_from_file (filename, &error);
> + if (error || handle == NULL)
> + return 1;
> + rsvg_handle_get_dimensions (handle, &dimensions);
> + g_object_unref (handle);
> +
> + tablet = g_new0 (Tablet, 1);
> + tablet->device = device;
> + tablet->area.width = dimensions.width;
> + tablet->area.height = dimensions.height;
> + tablet->handle = NULL;
> + tablet->active_button = 'A';
> + tablet->num_buttons = libwacom_get_num_buttons (device);
> + tablet->widget = gtk_window_new (GTK_WINDOW_TOPLEVEL);
> +
> + gtk_widget_set_app_paintable (tablet->widget, TRUE);
> + gtk_widget_realize (tablet->widget);
> + gdk_win = gtk_widget_get_window (tablet->widget);
> + gdk_color_parse (BACK_COLOR, &black);
> + gdk_window_set_background (gdk_win, &black);
> + gtk_window_set_default_size (GTK_WINDOW (tablet->widget), 800, 600);
> +
> + g_signal_connect (tablet->widget, "expose-event",
> G_CALLBACK(on_expose_cb), tablet);
> + g_signal_connect (tablet->widget, "delete-event",
> G_CALLBACK(on_delete_cb), tablet);
> + tablet->timeout = g_timeout_add(500 /* ms */, (GSourceFunc)
> on_timer_cb, tablet);
> +
> + gtk_widget_show (tablet->widget);
> +
> + gtk_main();
> +
> + libwacom_destroy(device);
> + libwacom_database_destroy(db);
> +
> + return 0;
> +}
> --
> 1.7.1
>
> ------------------------------------------------------------------------------
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> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
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> _______________________________________________
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> Linuxwacom-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/linuxwacom-devel
------------------------------------------------------------------------------
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