| /* |
| * Copyright 2016 The Fuchsia Authors. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "FuchsiaCursor.h" |
| |
| #include "FuchsiaInputHandler.h" |
| |
| namespace Fuchsia { |
| |
| using namespace std; |
| |
| Cursor::Cursor() |
| : Cursor(1024, 768) |
| { |
| } |
| |
| Cursor::Cursor(int maxX, int maxY) |
| : fMaxX(maxX) |
| , fMaxY(maxY) |
| , fX(0) |
| , fY(0) |
| , fButtons(0) |
| { |
| } |
| |
| Cursor::ButtonActions Cursor::handleEvent(const MouseEvent& evt) |
| { |
| ButtonActions actions; |
| fX += evt.fDeltaX; |
| fX = std::max(fX, 0); |
| fX = std::min(fX, fMaxX); |
| fY += evt.fDeltaY; |
| fY = std::max(fY, 0); |
| fY = std::min(fY, fMaxY); |
| bitset<8> newButtons(evt.fButtons); |
| for (int i = 0; i < kBitCount; ++i) { |
| if (newButtons[i] != fButtons[i]) { |
| if (newButtons[i]) { |
| actions[i] = ButtonAction::kDown; |
| } else { |
| actions[i] = ButtonAction::kUp; |
| } |
| } else { |
| actions[i] = ButtonAction::kNoChange; |
| } |
| } |
| fButtons = newButtons; |
| return actions; |
| } |
| } |