5a4373a3c4
To enable logging, execute:
App.ParamGet("User parameter:BaseApp/Preferences/View").SetBool("NavigationDebug",True)
116 lines
4.3 KiB
C++
116 lines
4.3 KiB
C++
/***************************************************************************
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* Copyright (c) 2019 Victor Titov (DeepSOIC) <vv.titov@gmail.com> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef GESTURENAVIGATIONSTYLE2_H
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#define GESTURENAVIGATIONSTYLE2_H
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#include "NavigationStyle.h"
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#include <queue>
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#include <memory>
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namespace Gui {
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class GestureNavigationStyle: public UserNavigationStyle
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{
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typedef UserNavigationStyle superclass;
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TYPESYSTEM_HEADER_WITH_OVERRIDE();
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public:
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GestureNavigationStyle();
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virtual ~GestureNavigationStyle() override;
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const char* mouseButtons(ViewerMode) override;
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protected:
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SbBool processSoEvent(const SoEvent* const ev) override;
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public:
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///calls processSoEvent of NavigationStyle.
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SbBool processSoEvent_bypass(const SoEvent* const ev);
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protected://state machine classes
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///State machine event, a wrapper around SoEvent
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class Event;
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class NaviMachine;
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class IdleState;
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///when operating a dragger, for example
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class InteractState;
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///button was pressed, but the cursor hasn't moved yet
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class AwaitingMoveState;
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///when in a two-finger touchscreen gestures
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class GestureState;
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///rotating the viewed model with mouse drag
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class RotateState;
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///panning with mouse drag
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class PanState;
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///panning triggered by tap-and-hold. It won't switch to Tilt and Rotate upon pressing/releasing mouse buttons
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class StickyPanState;
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///tilting with mouse drag
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class TiltState;
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///this state discards all mouse input (except detecting button roll gestures), until all buttons are released.
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class AwaitingReleaseState;
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class EventQueue: public std::queue<SoMouseButtonEvent>
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{
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public:
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EventQueue(GestureNavigationStyle& ns):ns(ns){}
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void post(const Event& ev);
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void discardAll();
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void forwardAll();
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public:
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GestureNavigationStyle& ns;
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};
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protected: // members variables
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std::unique_ptr<NaviMachine> naviMachine;
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EventQueue postponedEvents;
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//settings:
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///if false, tilting with touchscreen gestures will be disabled
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bool enableGestureTilt = false;
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///distance in px to treat as a definite drag (noise gate)
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int mouseMoveThreshold = 5;
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///used by roll gesture detection logic, in AwaitingMoveState and AwaitingReleaseState.
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int rollDir = 0;
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bool logging = false;
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protected: //helper functions
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bool isDraggerUnderCursor(SbVec2s pos);
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public:
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bool is2DViewing() const;
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public: //gesture reactions
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///Roll gesture is like: press LMB, press RMB, release LMB, release RMB.
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/// This function is called by state machine whenever it picks up roll gesture.
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void onRollGesture(int direction);
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///Called by state machine, when set-rotation-center gesture is detected (MMB click, or H key)
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void onSetRotationCenter(SbVec2s cursor);
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};
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}
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#endif // GESTURENAVIGATIONSTYLE2_H
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