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diff --git a/linden/indra/newview/lldebugmessagebox.cpp b/linden/indra/newview/lldebugmessagebox.cpp
new file mode 100644
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--- /dev/null
+++ b/linden/indra/newview/lldebugmessagebox.cpp
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+/** 
+ * @file lldebugmessagebox.cpp
+ * @brief Implementation of a simple, non-modal message box.
+ *
+ * Copyright (c) 2002-2007, Linden Research, Inc.
+ * 
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "lldebugmessagebox.h"
+
+#include "llresmgr.h"
+#include "llfontgl.h"
+#include "llbutton.h"
+#include "llsliderctrl.h"
+#include "llcheckboxctrl.h"
+#include "lltextbox.h"
+#include "llcallbacklist.h"
+#include "lllineeditor.h"
+#include "llfocusmgr.h"
+
+///----------------------------------------------------------------------------
+/// Class LLDebugVarMessageBox
+///----------------------------------------------------------------------------
+
+std::map<LLString, LLDebugVarMessageBox*> LLDebugVarMessageBox::sInstances;
+
+LLDebugVarMessageBox::LLDebugVarMessageBox(const std::string& title, EDebugVarType var_type, void *var) : 
+        LLFloater("msg box", LLRect(10,160,400,10), title),
+        mVarType(var_type), mVarData(var), mAnimate(FALSE)
+{
+        switch(var_type)
+        {
+        case VAR_TYPE_F32:
+                mSlider1 = new LLSliderCtrl("slider 1", LLRect(20,130,190,110), title, NULL, 70, 130, TRUE, TRUE, NULL, NULL, *((F32*)var), -100.f, 100.f, 0.1f, NULL);
+                mSlider1->setPrecision(3);
+                addChild(mSlider1);
+                mSlider2 = NULL;
+                mSlider3 = NULL;
+                break;
+        case VAR_TYPE_S32:
+                mSlider1 = new LLSliderCtrl("slider 1", LLRect(20,100,190,80), title, NULL, 70, 130, TRUE, TRUE, NULL, NULL, (F32)*((S32*)var), -255.f, 255.f, 1.f, NULL);
+                mSlider1->setPrecision(0);
+                addChild(mSlider1);
+                mSlider2 = NULL;
+                mSlider3 = NULL;
+                break;
+        case VAR_TYPE_VEC3:
+                mSlider1 = new LLSliderCtrl("slider 1", LLRect(20,130,190,110), "x: ", NULL, 70, 130, TRUE, TRUE, NULL, NULL, ((LLVector3*)var)->mV[VX], -100.f, 100.f, 0.1f, NULL);
+                mSlider1->setPrecision(3);
+                mSlider2 = new LLSliderCtrl("slider 2", LLRect(20,100,190,80), "y: ", NULL, 70, 130, TRUE, TRUE, NULL, NULL, ((LLVector3*)var)->mV[VY], -100.f, 100.f, 0.1f, NULL);
+                mSlider2->setPrecision(3);
+                mSlider3 = new LLSliderCtrl("slider 3", LLRect(20,70,190,50), "z: ", NULL, 70, 130, TRUE, TRUE, NULL, NULL, ((LLVector3*)var)->mV[VZ], -100.f, 100.f, 0.1f, NULL);
+                mSlider3->setPrecision(3);
+                addChild(mSlider1);
+                addChild(mSlider2);
+                addChild(mSlider3);
+                break;
+        }
+
+        mAnimateButton = new LLButton("Animate", LLRect(20, 45, 180, 25), "", onAnimateClicked, this);
+        addChild(mAnimateButton);
+
+        mText = new LLTextBox("value", LLRect(20,20,190,0));
+        addChild(mText);
+
+        //disable hitting enter closes dialog
+        setDefaultBtn();
+}
+
+LLDebugVarMessageBox::~LLDebugVarMessageBox()
+{
+        sInstances.erase(mTitle);
+}
+
+void LLDebugVarMessageBox::show(const std::string& title, F32 *var, F32 max_value, F32 increment)
+{
+#ifndef LL_RELEASE_FOR_DOWNLOAD
+        LLDebugVarMessageBox* box = show(title, VAR_TYPE_F32, (void*)var);
+        max_value = llabs(max_value);
+        box->mSlider1->setMaxValue(max_value);
+        box->mSlider1->setMinValue(-max_value);
+        box->mSlider1->setIncrement(increment);
+        if (!gFocusMgr.childHasKeyboardFocus(box))
+        {
+                box->mSlider1->setValue(*var);
+        }
+        box->mSlider1->setCommitCallback(slider_changed);
+        box->mSlider1->setCallbackUserData(box);
+#endif
+}
+
+void LLDebugVarMessageBox::show(const std::string& title, S32 *var, S32 max_value, S32 increment)
+{
+#ifndef LL_RELEASE_FOR_DOWNLOAD
+        LLDebugVarMessageBox* box = show(title, VAR_TYPE_S32, (void*)var);
+        F32 max_val = llabs((F32)max_value);
+        box->mSlider1->setMaxValue(max_val);
+        box->mSlider1->setMinValue(-max_val);
+        box->mSlider1->setIncrement((F32)increment);
+        if (!gFocusMgr.childHasKeyboardFocus(box))
+        {
+                box->mSlider1->setValue((F32)*var);
+        }
+        box->mSlider1->setCommitCallback(slider_changed);
+        box->mSlider1->setCallbackUserData(box);
+#endif
+}
+
+void LLDebugVarMessageBox::show(const std::string& title, LLVector3 *var, LLVector3 max_value, LLVector3 increment)
+{
+#ifndef LL_RELEASE_FOR_DOWNLOAD
+        LLDebugVarMessageBox* box = show(title, VAR_TYPE_VEC3, (LLVector3*)var);
+        max_value.abs();
+        box->mSlider1->setMaxValue(max_value.mV[VX]);
+        box->mSlider1->setMinValue(-max_value.mV[VX]);
+        box->mSlider1->setIncrement(increment.mV[VX]);
+        box->mSlider1->setCommitCallback(slider_changed);
+        box->mSlider1->setCallbackUserData(box);
+
+        box->mSlider2->setMaxValue(max_value.mV[VX]);
+        box->mSlider2->setMinValue(-max_value.mV[VX]);
+        box->mSlider2->setIncrement(increment.mV[VX]);
+        box->mSlider2->setCommitCallback(slider_changed);
+        box->mSlider2->setCallbackUserData(box);
+
+        box->mSlider3->setMaxValue(max_value.mV[VX]);
+        box->mSlider3->setMinValue(-max_value.mV[VX]);
+        box->mSlider3->setIncrement(increment.mV[VX]);
+        box->mSlider3->setCommitCallback(slider_changed);
+        box->mSlider3->setCallbackUserData(box);
+#endif
+}
+
+LLDebugVarMessageBox* LLDebugVarMessageBox::show(const std::string& title, EDebugVarType var_type, void *var)
+{
+        LLString title_string(title);
+
+        LLDebugVarMessageBox *box = sInstances[title_string];
+        if (!box)
+        {
+                box = new LLDebugVarMessageBox(title, var_type, var);
+                sInstances[title_string] = box;
+                gFloaterView->addChild(box);
+                box->reshape(200,150);
+                box->open();
+                box->mTitle = title_string;
+        }
+
+        return box;
+}
+
+void LLDebugVarMessageBox::slider_changed(LLUICtrl* ctrl, void* user_data)
+{
+        LLDebugVarMessageBox *msg_box = (LLDebugVarMessageBox*)user_data;
+        if (!msg_box || !msg_box->mVarData) return;
+
+        switch(msg_box->mVarType)
+        {
+        case VAR_TYPE_F32:
+                *((F32*)msg_box->mVarData) = (F32)msg_box->mSlider1->getValue().asReal();
+                break;
+        case VAR_TYPE_S32:
+                *((S32*)msg_box->mVarData) = (S32)msg_box->mSlider1->getValue().asInteger();
+                break;
+        case VAR_TYPE_VEC3:
+                LLVector3* vec_p = (LLVector3*)msg_box->mVarData;
+                vec_p->setVec((F32)msg_box->mSlider1->getValue().asReal(), 
+                        (F32)msg_box->mSlider2->getValue().asReal(), 
+                        (F32)msg_box->mSlider3->getValue().asReal());
+                break;
+        }
+}
+
+void LLDebugVarMessageBox::onAnimateClicked(void* user_data)
+{
+        LLDebugVarMessageBox* msg_boxp = (LLDebugVarMessageBox*)user_data;
+        msg_boxp->mAnimate = !msg_boxp->mAnimate;
+        msg_boxp->mAnimateButton->setToggleState(msg_boxp->mAnimate);
+}
+
+void LLDebugVarMessageBox::onClose(bool app_quitting)
+{
+        setVisible(FALSE);
+}
+
+void LLDebugVarMessageBox::draw()
+{
+        char text[128];
+        switch(mVarType)
+        {
+        case VAR_TYPE_F32:
+                sprintf(text, "%.3f", *((F32*)mVarData));
+                break;
+        case VAR_TYPE_S32:
+                sprintf(text, "%d", *((S32*)mVarData));
+                break;
+        case VAR_TYPE_VEC3:
+                LLVector3* vec_p = (LLVector3*)mVarData;
+                sprintf(text, "%.3f %.3f %.3f", vec_p->mV[VX], vec_p->mV[VY], vec_p->mV[VZ]);
+                break;
+        }
+        mText->setText(text);
+
+        if(mAnimate)
+        {
+                F32 animated_val = clamp_rescale(fmodf((F32)LLFrameTimer::getElapsedSeconds() / 5.f, 1.f), 0.f, 1.f, 0.f, mSlider1->getMaxValue());
+                if (mSlider1)
+                {
+                        mSlider1->setValue(animated_val);
+                        slider_changed(mSlider1, this);
+                }
+                if (mSlider2)
+                {
+                        mSlider2->setValue(animated_val);
+                        slider_changed(mSlider2, this);
+                }
+                if (mSlider3)
+                {
+                        mSlider3->setValue(animated_val);
+                        slider_changed(mSlider3, this);
+                }
+        }
+        LLFloater::draw();
+}