blob: 11430a8ace44e75261d49ffe868a487d8c8a69f2 [file] [log] [blame]
// Copyright 2014 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 "services/ui/ws/window_coordinate_conversions.h"
#include "services/ui/ws/server_window.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/vector2d.h"
#include "ui/gfx/geometry/vector2d_f.h"
namespace ui {
namespace ws {
namespace {
gfx::Vector2dF CalculateOffsetToAncestor(const ServerWindow* window,
const ServerWindow* ancestor) {
gfx::Vector2d result;
for (const ServerWindow* v = window; v != ancestor; v = v->parent())
result += v->bounds().OffsetFromOrigin();
return gfx::Vector2dF(result.x(), result.y());
} // namespace
gfx::Point ConvertPointBetweenWindows(const ServerWindow* from,
const ServerWindow* to,
const gfx::Point& point) {
return gfx::ToFlooredPoint(
ConvertPointFBetweenWindows(from, to, gfx::PointF(point.x(), point.y())));
gfx::PointF ConvertPointFBetweenWindows(const ServerWindow* from,
const ServerWindow* to,
const gfx::PointF& point) {
if (from == to)
return point;
if (from->Contains(to)) {
const gfx::Vector2dF offset(CalculateOffsetToAncestor(to, from));
return point - offset;
const gfx::Vector2dF offset(CalculateOffsetToAncestor(from, to));
return point + offset;
gfx::Rect ConvertRectBetweenWindows(const ServerWindow* from,
const ServerWindow* to,
const gfx::Rect& rect) {
if (from == to)
return rect;
const gfx::Point top_left(
ConvertPointBetweenWindows(from, to, rect.origin()));
const gfx::Point bottom_right(gfx::ToCeiledPoint(ConvertPointFBetweenWindows(
from, to, gfx::PointF(rect.right(), rect.bottom()))));
return gfx::Rect(top_left.x(), top_left.y(), bottom_right.x() - top_left.x(),
bottom_right.y() - top_left.y());
} // namespace ws
} // namespace ui