1 files changed, 117 insertions, 0 deletions
diff --git a/xfa_test/pdf/control.cc b/xfa_test/pdf/control.cc
new file mode 100644
index 0000000000..ed911b6b95
--- /dev/null
+++ b/xfa_test/pdf/control.cc
@@ -0,0 +1,117 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "pdf/control.h"
+
+#include "base/logging.h"
+#include "pdf/draw_utils.h"
+
+namespace chrome_pdf {
+
+Control::Control()
+    : id_(kInvalidControlId),
+      visible_(false),
+      owner_(NULL),
+      transparency_(kOpaqueAlpha) {
+}
+
+Control::~Control() {
+}
+
+bool Control::Create(uint32 id, const pp::Rect& rc,
+                     bool visible, Owner* owner) {
+  DCHECK(owner);
+  if (owner_ || id == kInvalidControlId)
+    return false;  // Already created or id is invalid.
+  id_ = id;
+  rc_ = rc;
+  visible_ = visible;
+  owner_ = owner;
+  return true;
+}
+
+bool Control::HandleEvent(const pp::InputEvent& event) {
+  return false;
+}
+
+void Control::PaintMultipleRects(pp::ImageData* image_data,
+                                 const std::list<pp::Rect>& rects) {
+  DCHECK(rects.size() > 0);
+  if (rects.size() == 1) {
+    Paint(image_data, rects.front());
+    return;
+  }
+
+  // Some rects in the input list may overlap. To prevent double
+  // painting (causes problems with semi-transparent controls) we'll
+  // paint control into buffer image data only once and copy requested
+  // rectangles.
+  pp::ImageData buffer(owner()->GetInstance(), image_data->format(),
+                       rect().size(), false);
+  if (buffer.is_null())
+    return;
+
+  pp::Rect draw_rc = pp::Rect(image_data->size()).Intersect(rect());
+  pp::Rect ctrl_rc = pp::Rect(draw_rc.point() - rect().point(), draw_rc.size());
+  CopyImage(*image_data, draw_rc, &buffer, ctrl_rc, false);
+
+  // Temporary move control to origin (0,0) and draw it into temp buffer.
+  // Move to the original position afterward. Since this is going on temp
+  // buffer, we don't need to invalidate here.
+  pp::Rect temp = rect();
+  MoveTo(pp::Point(0, 0), false);
+  Paint(&buffer, ctrl_rc);
+  MoveTo(temp.point(), false);
+
+  std::list<pp::Rect>::const_iterator iter;
+  for (iter = rects.begin(); iter != rects.end(); ++iter) {
+    pp::Rect draw_rc = rect().Intersect(*iter);
+    if (!draw_rc.IsEmpty()) {
+      // Copy requested rect from the buffer image.
+      pp::Rect src_rc = draw_rc;
+      src_rc.Offset(-rect().x(), -rect().y());
+      CopyImage(buffer, src_rc, image_data, draw_rc, false);
+    }
+  }
+}
+
+void Control::Show(bool visible, bool invalidate) {
+  if (visible_ != visible) {
+    visible_ = visible;
+    if (invalidate)
+      owner_->Invalidate(id_, rc_);
+  }
+}
+
+void Control::AdjustTransparency(uint8 transparency, bool invalidate) {
+  if (transparency_ != transparency) {
+    transparency_ = transparency;
+    if (invalidate && visible_)
+      owner_->Invalidate(id_, rc_);
+  }
+}
+
+void Control::MoveBy(const pp::Point& offset, bool invalidate) {
+  pp::Rect old_rc = rc_;
+  rc_.Offset(offset);
+  if (invalidate && visible_) {
+    owner()->Invalidate(id(), old_rc);
+    owner()->Invalidate(id(), rect());
+  }
+}
+
+void Control::SetRect(const pp::Rect& rc, bool invalidate) {
+  pp::Rect old_rc = rc_;
+  rc_ = rc;
+  if (invalidate && visible_) {
+    owner()->Invalidate(id(), old_rc);
+    owner()->Invalidate(id(), rect());
+  }
+}
+
+void Control::MoveTo(const pp::Point& origin, bool invalidate) {
+  MoveBy(origin - rc_.point(), invalidate);
+}
+
+}  // namespace chrome_pdf