MAINT-8334 EEP UI control: Virtual Trackball

1 files changed, 149 insertions, 0 deletions

diff --git a/indra/llui/llvirtualtrackball.h b/indra/llui/llvirtualtrackball.h
new file mode 100644
index 0000000000..c1b66550bb
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+++ b/indra/llui/llvirtualtrackball.h
@@ -0,0 +1,149 @@
+/**
+* @file virtualtrackball.h
+* @author Andrey Lihatskiy
+* @brief Header file for LLVirtualTrackball
+*
+* $LicenseInfo:firstyear=2001&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2018, Linden Research, Inc.
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation;
+* version 2.1 of the License only.
+*
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*
+* Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+* $/LicenseInfo$
+*/
+
+// A control for positioning the sun and the moon in the celestial sphere.
+
+#ifndef LL_LLVIRTUALTRACKBALL_H
+#define LL_LLVIRTUALTRACKBALL_H
+
+#include "lluictrl.h"
+#include "llpanel.h"
+#include "lltextbox.h"
+#include "llbutton.h"
+
+class LLVirtualTrackball
+    : public LLUICtrl
+{
+public:
+    enum ThumbMode
+    {
+        SUN,
+        MOON
+    };
+
+    struct Params
+        : public LLInitParam::Block<Params, LLUICtrl::Params>
+    {
+        Optional<LLViewBorder::Params>	    border;
+        Optional<LLUIImage*>                image_moon_back,
+            image_moon_front,
+            image_sphere,
+            image_sun_back,
+            image_sun_front;
+
+        Optional<std::string>               thumb_mode;
+        Optional<F32>                       increment_angle_mouse,
+            increment_angle_btn;
+
+        Optional<LLTextBox::Params>         lbl_N,
+            lbl_S,
+            lbl_W,
+            lbl_E;
+
+        Optional<LLButton::Params>          btn_rotate_top,
+            btn_rotate_bottom,
+            btn_rotate_left,
+            btn_rotate_right;
+
+        Params();
+    };
+
+
+    virtual ~LLVirtualTrackball();
+    /*virtual*/ BOOL postBuild();
+
+    virtual BOOL    handleHover(S32 x, S32 y, MASK mask);
+    virtual BOOL    handleMouseUp(S32 x, S32 y, MASK mask);
+    virtual BOOL    handleMouseDown(S32 x, S32 y, MASK mask);
+    virtual BOOL    handleRightMouseDown(S32 x, S32 y, MASK mask);
+    virtual BOOL    handleKeyHere(KEY key, MASK mask);
+
+    virtual void    draw();
+
+    virtual void    setValue(const LLSD& value);
+    void            setValue(F32 x, F32 y, F32 z, F32 w);
+    virtual LLSD    getValue() const;
+
+    void            setRotation(const LLQuaternion &value);
+    LLQuaternion    getRotation() const;
+
+protected:
+    friend class LLUICtrlFactory;
+    LLVirtualTrackball(const Params&);
+    void onEditChange();
+
+protected:
+    LLTextBox*          mNLabel;
+    LLTextBox*          mELabel;
+    LLTextBox*          mSLabel;
+    LLTextBox*          mWLabel;
+
+    LLButton*           mBtnRotateTop;
+    LLButton*           mBtnRotateBottom;
+    LLButton*           mBtnRotateLeft;
+    LLButton*           mBtnRotateRight;
+
+    LLTextBox*          mLabelN;
+    LLTextBox*          mLabelS;
+    LLTextBox*          mLabelW;
+    LLTextBox*          mLabelE;
+
+    LLPanel*            mTouchArea;
+    LLViewBorder*       mBorder;
+
+private:
+    void setValueAndCommit(const LLQuaternion &value);
+    void drawThumb(S32 x, S32 y, ThumbMode mode, bool upperHemi = true);
+    bool pointInTouchCircle(S32 x, S32 y) const;
+
+    void onRotateTopClick();
+    void onRotateBottomClick();
+    void onRotateLeftClick();
+    void onRotateRightClick();
+
+    S32 mPrevX;
+    S32 mPrevY;
+
+    LLUIImage*     mImgMoonBack;
+    LLUIImage*     mImgMoonFront;
+    LLUIImage*     mImgSunBack;
+    LLUIImage*     mImgSunFront;
+    LLUIImage*     mImgBtnRotTop;
+    LLUIImage*     mImgBtnRotLeft;
+    LLUIImage*     mImgBtnRotRight;
+    LLUIImage*     mImgBtnRotBottom;
+    LLUIImage*     mImgSphere;
+
+    LLQuaternion   mValue;
+    ThumbMode      mThumbMode;
+
+    F32            mIncrementMouse;
+    F32            mIncrementBtn;
+};
+
+#endif
+