1 /* 2 Copyright (C) 2010-2014 Kristian Duske 3 4 This file is part of TrenchBroom. 5 6 TrenchBroom is free software: you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation, either version 3 of the License, or 9 (at your option) any later version. 10 11 TrenchBroom is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with TrenchBroom. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include "UVCameraTool.h" 21 22 #include "VecMath.h" 23 #include "View/InputState.h" 24 #include "Renderer/OrthographicCamera.h" 25 26 namespace TrenchBroom { 27 namespace View { UVCameraTool(Renderer::OrthographicCamera & camera)28 UVCameraTool::UVCameraTool(Renderer::OrthographicCamera& camera) : 29 ToolControllerBase(), 30 Tool(true), 31 m_camera(camera) {} 32 doGetTool()33 Tool* UVCameraTool::doGetTool() { 34 return this; 35 } 36 doMouseScroll(const InputState & inputState)37 void UVCameraTool::doMouseScroll(const InputState& inputState) { 38 const Vec3f oldWorldPos = m_camera.unproject(static_cast<float>(inputState.mouseX()), 39 static_cast<float>(inputState.mouseY()), 40 0.0f); 41 42 if (inputState.scrollY() > 0) 43 m_camera.zoom(1.1f); 44 else 45 m_camera.zoom(1.0f / 1.1f); 46 47 const Vec3f newWorldPos = m_camera.unproject(static_cast<float>(inputState.mouseX()), 48 static_cast<float>(inputState.mouseY()), 49 0.0f); 50 51 const Vec3f delta = oldWorldPos - newWorldPos; 52 m_camera.moveBy(delta); 53 } 54 doStartMouseDrag(const InputState & inputState)55 bool UVCameraTool::doStartMouseDrag(const InputState& inputState) { 56 return inputState.mouseButtonsPressed(MouseButtons::MBRight) || inputState.mouseButtonsPressed(MouseButtons::MBMiddle); 57 } 58 doMouseDrag(const InputState & inputState)59 bool UVCameraTool::doMouseDrag(const InputState& inputState) { 60 const int oldX = inputState.mouseX() - inputState.mouseDX(); 61 const int oldY = inputState.mouseY() - inputState.mouseDY(); 62 63 const Vec3f oldWorldPos = m_camera.unproject(static_cast<float>(oldX), 64 static_cast<float>(oldY), 65 0.0f); 66 const Vec3f newWorldPos = m_camera.unproject(static_cast<float>(inputState.mouseX()), 67 static_cast<float>(inputState.mouseY()), 68 0.0f); 69 const Vec3f delta = oldWorldPos - newWorldPos; 70 m_camera.moveBy(delta); 71 return true; 72 } 73 doEndMouseDrag(const InputState & inputState)74 void UVCameraTool::doEndMouseDrag(const InputState& inputState) {} 75 doCancelMouseDrag()76 void UVCameraTool::doCancelMouseDrag() {} 77 doCancel()78 bool UVCameraTool::doCancel() { 79 return false; 80 } 81 } 82 } 83