Adding ./doc from boost

Reviewer: Lauro Moura <lauro.neto@openbossa.org>
          Luciano Wolf <luciano.wolf@openbossa.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/doc/codesnippets/doc/src/snippets/code/src_gui_painting_qregion_unix.cpp b/doc/codesnippets/doc/src/snippets/code/src_gui_painting_qregion_unix.cpp
new file mode 100644
index 000000000..9b6e31805
--- /dev/null
+++ b/doc/codesnippets/doc/src/snippets/code/src_gui_painting_qregion_unix.cpp
@@ -0,0 +1,18 @@
+//! [0]
+r1 = QRegion(10, 10, 20, 20)
+r1.isNull()                // false
+r1.isEmpty()               // false
+
+r2 = QRegion(40, 40, 20, 20)
+r3 = QRegion()
+r3.isNull()                // true
+r3.isEmpty()               // true
+
+r3 = r1.intersected(r2)    // r3: intersection of r1 and r2
+r3.isNull()                // false
+r3.isEmpty()               // true
+
+r3 = r1.united(r2)         // r3: union of r1 and r2
+r3.isNull()                // false
+r3.isEmpty()               // false
+//! [0]