/**************************************************************************** ** ** Copyright (C) 2015 Paul Lemire ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt3D module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. 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IN NO EVENT SHALL THE COPYRIGHT ** OWNER 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import Qt3D.Core 2.0 import Qt3D.Render 2.0 import Qt3D.Input 2.0 import Qt3D.Logic 2.0 import QtQml 2.2 Entity { id: root property Camera camera property real linearSpeed: 10.0 property real lookSpeed: 180.0 property real zoomLimit: 2.0 QtObject { id: d readonly property vector3d firstPersonUp: Qt.vector3d(0, 1, 0) readonly property bool leftMouseButtonPressed: leftMouseButtonAction.active readonly property bool rightMouseButtonPressed: rightMouseButtonAction.active readonly property bool shiftPressed: shiftAction.active readonly property bool altPressed: altAction.active property real translationX: clampInputs(leftMouseButtonPressed ? mouseXAxis.value : 0, keyboardXAxis.value) * linearSpeed; property real translationY: clampInputs(leftMouseButtonPressed ? mouseYAxis.value : 0, keyboardYAxis.value) * linearSpeed; property real translationZ: keyboardZAxis.value * linearSpeed; property real orbitX: clampInputs(rightMouseButtonPressed ? mouseXAxis.value : 0, keyboardXAxis.value) * lookSpeed; property real orbitY: clampInputs(rightMouseButtonPressed ? mouseYAxis.value : 0, keyboardYAxis.value) * lookSpeed; } function clampInputs(input1, input2) { var axisValue = input1 + input2; return (axisValue < -1) ? -1 : (axisValue > 1) ? 1 : axisValue; } function zoomDistance(firstPoint, secondPoint) { var u = secondPoint.minus(firstPoint); u = u.times(u); return u.x + u.y + u.z; } KeyboardDevice { id: keyboardSourceDevice } MouseDevice { id: mouseSourceDevice sensitivity: 0.1 } components: [ LogicalDevice { actions: [ Action { id: leftMouseButtonAction ActionInput { sourceDevice: mouseSourceDevice buttons: [MouseEvent.LeftButton] } }, Action { id: rightMouseButtonAction ActionInput { sourceDevice: mouseSourceDevice buttons: [MouseEvent.RightButton] } }, Action { id: shiftAction ActionInput { sourceDevice: keyboardSourceDevice buttons: [Qt.Key_Shift] } }, Action { id: altAction ActionInput { sourceDevice: keyboardSourceDevice buttons: [Qt.Key_Alt] } } ] // actions axes: [ // Mouse Axis { id: mouseXAxis AxisInput { sourceDevice: mouseSourceDevice axis: MouseDevice.X } }, Axis { id: mouseYAxis AxisInput { sourceDevice: mouseSourceDevice axis: MouseDevice.Y } }, // Keyboard Axis { id: keyboardXAxis AxisInput { sourceDevice: keyboardSourceDevice buttons: [Qt.Key_Left] scale: -1.0 } AxisInput { sourceDevice: keyboardSourceDevice buttons: [Qt.Key_Right] scale: 1.0 } }, Axis { id: keyboardZAxis AxisInput { sourceDevice: keyboardSourceDevice buttons: [Qt.Key_Up] scale: d.shiftPressed ? 1.0 : 0.0 } AxisInput { sourceDevice: keyboardSourceDevice buttons: [Qt.Key_Down] scale: d.shiftPressed ? -1.0 : 0.0 } }, Axis { id: keyboardYAxis AxisInput { sourceDevice: keyboardSourceDevice buttons: [Qt.Key_Up] scale: d.shiftPressed ? 0.0 : 1.0 } AxisInput { sourceDevice: keyboardSourceDevice buttons: [Qt.Key_Down] scale: d.shiftPressed ? 0.0 : -1.0 } } ] // axes }, FrameAction { onTriggered: { // The time difference since the last frame is passed in as the // argument dt. It is a floating point value in units of seconds. // Mouse input if (d.leftMouseButtonPressed) { if (d.rightMouseButtonPressed) { if (zoomDistance(root.camera.position, root.camera.viewCenter) > root.zoomLimit * root.zoomLimit) { // Dolly up to limit root.camera.translate(Qt.vector3d(0, 0, d.translationY).times(dt), Camera.DontTranslateViewCenter); } else { // Too close, Dolly backwards root.camera.translate(Qt.vector3d(0, 0, -1).times(dt), Camera.DontTranslateViewCenter); } } else { // Translate root.camera.translate(Qt.vector3d(d.translationX, d.translationY, 0).times(dt)); return } } else if (d.rightMouseButtonPressed) { // Orbit root.camera.panAboutViewCenter(d.orbitX * dt, d.firstPersonUp); root.camera.tiltAboutViewCenter(d.orbitY * dt); } // Keyboard input if (d.altPressed) { // Orbit root.camera.panAboutViewCenter(d.orbitX * dt, d.firstPersonUp); root.camera.tiltAboutViewCenter(d.orbitY * dt); } else if (d.shiftPressed) { if (zoomDistance(root.camera.position, root.camera.viewCenter) > root.zoomLimit * root.zoomLimit) { // Dolly up to limit root.camera.translate(Qt.vector3d(0, 0, d.translationZ).times(dt), Camera.DontTranslateViewCenter); } else { // Too close, Dolly backwards root.camera.translate(Qt.vector3d(0, 0, -1).times(dt), Camera.DontTranslateViewCenter); } } else { // Translate root.camera.translate(Qt.vector3d(d.translationX, d.translationY, 0).times(dt)); } } } ] // components }