qtbase: add option to enable tslib support

- the tslib support is not enabled by default and configure doesn't have any option
to active it, so add the option to the build system,
- patch tslib support to get the device from the environment variable
(patch taken from https://github.com/prabindh/qt-configs/blob/master/qt5_1.0_Feb13/tslib.patch
- provide variable to enable tslib support in a bbappend (disabled by default)
- tested on an i.MX5x target with qt 5.0.2

TODO : test with 5.0, 5.0.1 and _git

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

recipes-qt/qt5/qtbase-5.0.2/0001-configure-add-tslib-support.patch

@@ -0,0 +1,78 @@
+From b4edefdc1fb5ba67b202fad7df5a8def554d16fd Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Eric=20B=C3=A9nard?= <eric@eukrea.com>
+Date: Mon, 27 May 2013 18:45:03 +0200
+Subject: [PATCH] configure: add tslib support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Eric Bénard <eric@eukrea.com>
+---
+ configure                       | 24 ++++++++++++++++++++++++
+ src/plugins/generic/generic.pro |  4 ++++
+ 2 files changed, 28 insertions(+)
+
+diff --git a/configure b/configure
+index 2ea1ea4..727fed9 100755
+--- a/configure
++++ b/configure
+@@ -810,6 +810,7 @@ CFG_KMS=auto
+ CFG_LIBUDEV=auto
+ CFG_OBSOLETE_WAYLAND=no
+ CFG_EVDEV=auto
++CFG_TSLIB=auto
+ CFG_NIS=auto
+ CFG_CUPS=auto
+ CFG_ICONV=auto
+@@ -1782,6 +1783,13 @@ while [ "$#" -gt 0 ]; do
+             UNKNOWN_OPT=yes
+         fi
+         ;;
++    tslib)
++        if [ "$VAL" = "yes" ] || [ "$VAL" = "no" ]; then
++            CFG_TSLIB="$VAL"
++        else
++            UNKNOWN_OPT=yes
++        fi
++        ;;
+     cups)
+         if [ "$VAL" = "yes" ] || [ "$VAL" = "no" ]; then
+             CFG_CUPS="$VAL"
+@@ -4775,6 +4783,22 @@ if [ "$CFG_EVDEV" = "no" ]; then
+     QMakeVar add DEFINES QT_NO_EVDEV
+ fi
+ 
++if [ "$CFG_TSLIB" != "no" ]; then
++    if compileTest unix/tslib "tslib"; then
++        CFG_TSLIB=yes
++        QT_CONFIG="$QT_CONFIG tslib"
++    elif [ "$CFG_TSLIB" = "yes" ]; then
++        echo "The tslib functionality test failed!"
++        exit 1
++    else
++        CFG_TSLIB=no
++    fi
++fi
++if [ "$CFG_TSLIB" = "no" ]; then
++    QMakeVar add DEFINES QT_NO_TSLIB
++fi
++
++
+ # Check we actually have X11 :-)
+ if compileTest x11/xlib "XLib"; then
+     QT_CONFIG="$QT_CONFIG xlib"
+diff --git a/src/plugins/generic/generic.pro b/src/plugins/generic/generic.pro
+index 078db2f..18a8295 100644
+--- a/src/plugins/generic/generic.pro
++++ b/src/plugins/generic/generic.pro
+@@ -5,3 +5,7 @@ TEMPLATE = subdirs
+ contains(QT_CONFIG, evdev) {
+     SUBDIRS += evdevmouse evdevtouch evdevkeyboard evdevtablet
+ }
++
++contains(QT_CONFIG, tslib) {
++    SUBDIRS += tslib
++}
+-- 
+1.8.1.4
+

recipes-qt/qt5/qtbase-5.0.2/0001-enables-tslib-device-to-be-read-from-env-variable.patch

@@ -0,0 +1,34 @@
+From cb7d4b978d7b29e3f4ef5dba1ca1319ccd289a0d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Eric=20B=C3=A9nard?= <eric@eukrea.com>
+Date: Mon, 27 May 2013 18:32:37 +0200
+Subject: [PATCH] enables tslib device to be read from env variable
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+from :
+https://github.com/prabindh/qt-configs/blob/master/qt5_1.0_Feb13/tslib.patch
+
+Signed-off-by: Eric Bénard <eric@eukrea.com>
+---
+ src/plugins/generic/tslib/qtslib.cpp | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/plugins/generic/tslib/qtslib.cpp b/src/plugins/generic/tslib/qtslib.cpp
+index 6986fd5..2ed4a69 100644
+--- a/src/plugins/generic/tslib/qtslib.cpp
++++ b/src/plugins/generic/tslib/qtslib.cpp
+@@ -64,7 +64,9 @@ QTsLibMouseHandler::QTsLibMouseHandler(const QString &key,
+     qDebug() << "QTsLibMouseHandler" << key << specification;
+     setObjectName(QLatin1String("TSLib Mouse Handler"));
+ 
+-    QByteArray device = "/dev/input/event1";
++    QByteArray device = qgetenv("TSLIB_TSDEVICE");
++    if(device.isEmpty())
++       device = "/dev/input/event1";
+     if (specification.startsWith("/dev/"))
+         device = specification.toLocal8Bit();
+ 
+-- 
+1.8.1.4
+

recipes-qt/qt5/qtbase.inc

@@ -15,7 +15,7 @@ SRC_URI += " \
     file://0012-configure.prf-Allow-to-add-extra-arguments-to-make.patch \
 "
 
-DEPENDS += "qtbase-native freetype jpeg libpng zlib openssl glib-2.0 ${ICU} udev ${XCB_DEPENDS} ${GL_DEPENDS}"
+DEPENDS += "qtbase-native freetype jpeg libpng zlib openssl glib-2.0 ${ICU} udev ${XCB_DEPENDS} ${GL_DEPENDS} ${TSLIB_DEPENDS}"
 
 # to provide xcb/xcb_icccm.h, xcb/xcb_image.h, xcb/xcb_keysyms.h and dbus/dbus.h
 # XCB_DEPENDS += "xcb-util-wm xcb-util-image xcb-util-keysyms dbus"
@@ -40,6 +40,12 @@ QT_SQL_DRIVER_FLAGS ?= "-no-sql-ibase -no-sql-mysql -no-sql-psql -no-sql-odbc -p
 GL_DEPENDS ?= "virtual/libgl"
 QT_GLFLAGS ?= "-opengl"
 
+# if you want to enable tslib in your .bbappend, don't forget to add tslib dependencies
+# TSLIB_DEPENDS = "tslib"
+# QT_TSLIB = "-tslib"
+TSLIB_DEPENDS ?= ""
+QT_TSLIB ?= "-no-tslib"
+
 QT_WIDGETS ?= "-widgets"
 QT_XML ?= "-xmlpatterns"
 QT_WEBKIT ?= "-webkit"
@@ -74,6 +80,7 @@ QT_CONFIG_FLAGS += " \
     ${QT_GLFLAGS} \
     ${QT_TESTS} \
     ${QT_EXAMPLES} \
+    ${QT_TSLIB} \
 "
 
 INC_PR = "r1"

recipes-qt/qt5/qtbase_5.0.2.bb

@@ -5,6 +5,8 @@ PR = "${INC_PR}.0"
 
 SRC_URI += "file://0004-Disable-mkv8snapshot.patch \
     file://0001-qtbase-allow-build-of-examples.patch \
+    file://0001-enables-tslib-device-to-be-read-from-env-variable.patch \
+    file://0001-configure-add-tslib-support.patch \
     "
 
 SRC_URI[md5sum] = "a4fec8ed03867c4ee4fe5a46001a11f0"