gui/slidervalue.cpp - android_bootable_recovery - Gitiles

 /*
     Copyright 2012 to 2020 TeamWin
 	This file is part of TWRP/TeamWin Recovery Project.

 	TWRP is free software: you can redistribute it and/or modify
 	it under the terms of the GNU General Public License as published by
 	the Free Software Foundation, either version 3 of the License, or
 	(at your option) any later version.

 	TWRP 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 General Public License for more details.

 	You should have received a copy of the GNU General Public License
 	along with TWRP.  If not, see <http://www.gnu.org/licenses/>.
 */

 // slidervalue.cpp - GUISliderValue object

 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <fcntl.h>
 #include <sys/reboot.h>
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <sys/mman.h>
 #include <sys/types.h>
 #include <sys/ioctl.h>
 #include <time.h>
 #include <unistd.h>
 #include <stdlib.h>

 #include <string>

 extern "C" {
 #include "../twcommon.h"
 }
 #include "../minuitwrp/minui.h"
 #include "../minuitwrp/truetype.hpp"

 #include "rapidxml.hpp"
 #include "objects.hpp"

 GUISliderValue::GUISliderValue(xml_node<>* node) : GUIObject(node)
 {
 	xml_attribute<>* attr;
 	xml_node<>* child;

 	mMin = 0;
 	mMax = 100;
 	mValue = 0;
 	mLineH = 2;
 	mLinePadding = 10;
 	mSliderW = 5;
 	mSliderH = 30;
 	mLineX = 0;
 	mLineY = 0;
 	mValueStr = NULL;
 	mAction = NULL;
 	mShowCurr = true;
 	mShowRange = false;
 	mChangeOnDrag = false;
 	mRendered = false;
 	mBackgroundImage = NULL;
 	mHandleImage = NULL;
 	mHandleHoverImage = NULL;
 	mDragging = false;

 	mLabel = NULL;
 	ConvertStrToColor("white", &mTextColor);
 	ConvertStrToColor("white", &mLineColor);
 	ConvertStrToColor("blue", &mSliderColor);

 	if (!node)
 	{
 		LOGERR("GUISliderValue created without XML node\n");
 		return;
 	}

 	mLabel = new GUIText(node);
 	if (mLabel->Render() < 0)
 	{
 		delete mLabel;
 		mLabel = NULL;
 	}

 	mAction = new GUIAction(node);

 	child = FindNode(node, "font");
 	if (child)
 	{
 		mFont = LoadAttrFont(child, "resource");
 		mTextColor = LoadAttrColor(child, "color", mTextColor);
 	}

 	// Load the placement
 	LoadPlacement(FindNode(node, "placement"), &mRenderX, &mRenderY, &mRenderW);

 	child = FindNode(node, "colors");
 	if (child)
 	{
 		mLineColor = LoadAttrColor(child, "line");
 		mSliderColor = LoadAttrColor(child, "slider");
 	}

 	child = FindNode(node, "resource");
 	if (child)
 	{
 		mBackgroundImage = LoadAttrImage(child, "background");
 		mHandleImage = LoadAttrImage(child, "handle");
 		mHandleHoverImage = LoadAttrImage(child, "handlehover");
 	}

 	child = FindNode(node, "data");
 	if (child)
 	{
 		attr = child->first_attribute("variable");
 		if (attr)
 			mVariable = attr->value();

 		attr = child->first_attribute("min");
 		if (attr)
 		{
 			mMinStr = gui_parse_text(attr->value());
 			mMin = atoi(mMinStr.c_str());
 		}

 		attr = child->first_attribute("max");
 		if (attr)
 		{
 			mMaxStr = gui_parse_text(attr->value());
 			mMax = atoi(mMaxStr.c_str());
 		}

 		if (mMin > mMax)
 			mMin = mMax;

 		attr = child->first_attribute("default");
 		if (attr)
 		{
 			string parsevalue = gui_parse_text(attr->value());
 			int def = atoi(parsevalue.c_str());

 			if (def < mMin)
 				def = mMin;
 			else if (def > mMax)
 				def = mMax;
 			DataManager::SetValue(mVariable, def);
 		}

 		attr = child->first_attribute("showrange");
 		if (attr)
 			mShowRange = atoi(attr->value());

 		attr = child->first_attribute("showcurr");
 		if (attr)
 			mShowCurr = atoi(attr->value());

 		attr = child->first_attribute("changeondrag");
 		if (attr)
 			mChangeOnDrag = atoi(attr->value());
 	}

 	child = FindNode(node, "dimensions");
 	if (child)
 	{
 		mLineH = LoadAttrIntScaleY(child, "lineh", mLineH);
 		mLinePadding = LoadAttrIntScaleX(child, "linepadding", mLinePadding);
 		mSliderW = LoadAttrIntScaleX(child, "sliderw", mSliderW);
 		mSliderH = LoadAttrIntScaleY(child, "sliderh", mSliderH);
 	}

 	if (mFont && mFont->GetResource())
 		mFontHeight = mFont->GetHeight();
 	else
 		mFontHeight = 0;

 	if (mShowCurr)
 	{
 		int maxLen = std::max(strlen(mMinStr.c_str()), strlen(mMaxStr.c_str()));
 		mValueStr = new char[maxLen+1];
 	}

 	loadValue(true);

 	if (mShowRange)
 	{
 		int textW = std::max(measureText(mMaxStr), measureText(mMinStr));
 		mLinePadding += textW;
 	}

 	SetRenderPos(mRenderX, mRenderY, mRenderW);
 }

 GUISliderValue::~GUISliderValue()
 {
 	delete mLabel;
 	delete mAction;
 	delete[] mValueStr;
 }

 void GUISliderValue::loadValue(bool force)
 {
 	if (!mVariable.empty())
 	{
 		int value = DataManager::GetIntValue(mVariable);
 		if (mValue == value && !force)
 			return;

 		mValue = value;
 	}

 	mValue = std::max(mValue, mMin);
 	mValue = std::min(mValue, mMax);
 	mValuePct = pctFromValue(mValue);
 	mRendered = false;
 }

 int GUISliderValue::SetRenderPos(int x, int y, int w, int h)
 {
 	mRenderX = x;
 	mRenderY = y;
 	if (w || h)
 	{
 		mRenderW = w;
 		mRenderH = h;
 	}

 	mRenderH = mSliderH;
 	if (mShowCurr)
 		mRenderH += mFontHeight;

 	if (mLabel)
 	{
 		int lw, lh;
 		mLabel->GetCurrentBounds(lw, lh);
 		int textX = mRenderX + (mRenderW/2 - lw/2);

 		mLabel->SetRenderPos(textX, mRenderY);

 		y += lh;
 		mRenderH += lh;
 	}

 	mSliderY = y;

 	mActionX = mRenderX;
 	mActionY = mRenderY;
 	mActionW = mRenderW;
 	mActionH = mRenderH;

 	if (mBackgroundImage && mBackgroundImage->GetResource())
 	{
 		mLineW = mBackgroundImage->GetWidth();
 		mLineH = mBackgroundImage->GetHeight();
 	}
 	else
 		mLineW = mRenderW - (mLinePadding * 2);

 	mLineY = y + (mSliderH/2 - mLineH/2);
 	mLineX = mRenderX + (mRenderW/2 - mLineW/2);

 	return 0;
 }

 int GUISliderValue::measureText(const std::string& str)
 {
 	void* fontResource = NULL;
 	if (mFont)  fontResource = mFont->GetResource();

 	return twrpTruetype::gr_ttf_measureEx(str.c_str(), fontResource);
 }

 int GUISliderValue::Render(void)
 {
 	if (!isConditionTrue())
 	{
 		mRendered = false;
 		return 0;
 	}

 	if (mLabel)
 	{
 		int w, h;
 		mLabel->GetCurrentBounds(w, h);
 		if (w != mLabelW) {
 			mLabelW = w;
 			int textX = mRenderX + (mRenderW/2 - mLabelW/2);
 			mLabel->SetRenderPos(textX, mRenderY);
 		}
 		int res = mLabel->Render();
 		if (res < 0)
 			return res;
 	}

 	// line
 	if (mBackgroundImage && mBackgroundImage->GetResource())
 	{
 		gr_blit(mBackgroundImage->GetResource(), 0, 0, mLineW, mLineH, mLineX, mLineY);
 	}
 	else
 	{
 		gr_color(mLineColor.red, mLineColor.green, mLineColor.blue, mLineColor.alpha);
 		gr_fill(mLineX, mLineY, mLineW, mLineH);
 	}

 	// slider
 	uint32_t sliderX = mLineX + (mValuePct*(mLineW - mSliderW))/100;

 	if (mHandleImage && mHandleImage->GetResource())
 	{
 		gr_surface s = mHandleImage->GetResource();
 		if (mDragging && mHandleHoverImage && mHandleHoverImage->GetResource())
 			s = mHandleHoverImage->GetResource();
 		gr_blit(s, 0, 0, mSliderW, mSliderH, sliderX, mLineY + (mLineH/2 - mSliderH/2));
 	}
 	else
 	{
 		gr_color(mSliderColor.red, mSliderColor.green, mSliderColor.blue, mSliderColor.alpha);
 		gr_fill(sliderX, mSliderY, mSliderW, mSliderH);
 	}

 	void *fontResource = NULL;
 	if (mFont) fontResource = mFont->GetResource();
 	gr_color(mTextColor.red, mTextColor.green, mTextColor.blue, mTextColor.alpha);
 	if (mShowRange)
 	{
 		int rangeY = (mLineY - mLineH/2) - mFontHeight/2;
 		gr_textEx_scaleW(mRenderX + mPadding/2, rangeY, mMinStr.c_str(), fontResource, mRenderW, TOP_LEFT, 0);
 		gr_textEx_scaleW(mLineX + mLineW + mPadding/2, rangeY, mMaxStr.c_str(), fontResource, mRenderW, TOP_LEFT, 0);
 	}

 	if (mValueStr && mShowCurr)
 	{
 		sprintf(mValueStr, "%d", mValue);
 		int textW = measureText(mValueStr);
 		gr_textEx_scaleW(mRenderX + (mRenderW/2 - textW/2), mSliderY+mSliderH, mValueStr, fontResource, mRenderW, TOP_LEFT, 0);
 	}

 	mRendered = true;
 	return 0;
 }

 int GUISliderValue::Update(void)
 {
 	if (!isConditionTrue())
 		return mRendered ? 2 : 0;
 	if (!mRendered)
 		return 2;

 	if (mLabel)
 		return mLabel->Update();
 	return 0;
 }

 int GUISliderValue::valueFromPct(float pct)
 {
 	int range = abs(mMax - mMin);
 	return mMin + (pct * range) / 100;
 }

 float GUISliderValue::pctFromValue(int value)
 {
 	return float((value - mMin) * 100) / abs(mMax - mMin);
 }

 int GUISliderValue::NotifyTouch(TOUCH_STATE state, int x, int y)
 {
 	if (!isConditionTrue())
 		return -1;

 	switch (state)
 	{
 	case TOUCH_START:
 		if (x >= mLineX && x <= mLineX + mLineW &&
 			y >= mRenderY && y <= mRenderY + mRenderH)
 		{
 			mDragging = true;
 		}
 		// no break
 	case TOUCH_DRAG:
 	{
 		if (!mDragging)  return 0;

 		x = std::max(mLineX + mSliderW/2, x);
 		x = std::min(mLineX + mLineW - mSliderW/2, x);

 		mValuePct = float(((x - (mLineX + mSliderW/2)) * 100) / (mLineW - mSliderW));
 		int newVal = valueFromPct(mValuePct);
 		if (newVal != mValue) {
 			mRendered = false;
 			mValue = newVal;
 			if (mChangeOnDrag) {
 				if (!mVariable.empty())
 					DataManager::SetValue(mVariable, mValue);
 				if (mAction)
 					mAction->doActions();
 			}
 		}
 		break;
 	}
 	case TOUCH_RELEASE:
 	{
 		if (!mDragging)  return 0;
 		mDragging = false;

 		if (!mVariable.empty())
 			DataManager::SetValue(mVariable, mValue);
 		if (mAction)
 			mAction->doActions();
 		break;
 	}
 	case TOUCH_REPEAT:
 	case TOUCH_HOLD:
 		break;
 	}
 	return 0;
 }

 int GUISliderValue::NotifyVarChange(const std::string& varName, const std::string& value)
 {
 	GUIObject::NotifyVarChange(varName, value);

 	if (mLabel)
 		mLabel->NotifyVarChange(varName, value);
 	if (varName == mVariable) {
 		int newVal = atoi(value.c_str());
 		if (newVal != mValue) {
 			mValue = newVal;
 			mValuePct = pctFromValue(mValue);
 			mRendered = false;
 		}
 	}
 	return 0;
 }

 void GUISliderValue::SetPageFocus(int inFocus)
 {
 	if (inFocus)
 		loadValue();
 }
	/*
	Copyright 2012 to 2020 TeamWin
	This file is part of TWRP/TeamWin Recovery Project.

	TWRP is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	TWRP 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 General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with TWRP. If not, see <http://www.gnu.org/licenses/>.
	*/

	// slidervalue.cpp - GUISliderValue object

	#include <stdarg.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <fcntl.h>
	#include <sys/reboot.h>
	#include <sys/stat.h>
	#include <sys/time.h>
	#include <sys/mman.h>
	#include <sys/types.h>
	#include <sys/ioctl.h>
	#include <time.h>
	#include <unistd.h>
	#include <stdlib.h>

	#include <string>

	extern "C" {
	#include "../twcommon.h"
	}
	#include "../minuitwrp/minui.h"
	#include "../minuitwrp/truetype.hpp"

	#include "rapidxml.hpp"
	#include "objects.hpp"

	GUISliderValue::GUISliderValue(xml_node<>* node) : GUIObject(node)
	{
	xml_attribute<>* attr;
	xml_node<>* child;

	mMin = 0;
	mMax = 100;
	mValue = 0;
	mLineH = 2;
	mLinePadding = 10;
	mSliderW = 5;
	mSliderH = 30;
	mLineX = 0;
	mLineY = 0;
	mValueStr = NULL;
	mAction = NULL;
	mShowCurr = true;
	mShowRange = false;
	mChangeOnDrag = false;
	mRendered = false;
	mBackgroundImage = NULL;
	mHandleImage = NULL;
	mHandleHoverImage = NULL;
	mDragging = false;

	mLabel = NULL;
	ConvertStrToColor("white", &mTextColor);
	ConvertStrToColor("white", &mLineColor);
	ConvertStrToColor("blue", &mSliderColor);

	if (!node)
	{
	LOGERR("GUISliderValue created without XML node\n");
	return;
	}

	mLabel = new GUIText(node);
	if (mLabel->Render() < 0)
	{
	delete mLabel;
	mLabel = NULL;
	}

	mAction = new GUIAction(node);

	child = FindNode(node, "font");
	if (child)
	{
	mFont = LoadAttrFont(child, "resource");
	mTextColor = LoadAttrColor(child, "color", mTextColor);
	}

	// Load the placement
	LoadPlacement(FindNode(node, "placement"), &mRenderX, &mRenderY, &mRenderW);

	child = FindNode(node, "colors");
	if (child)
	{
	mLineColor = LoadAttrColor(child, "line");
	mSliderColor = LoadAttrColor(child, "slider");
	}

	child = FindNode(node, "resource");
	if (child)
	{
	mBackgroundImage = LoadAttrImage(child, "background");
	mHandleImage = LoadAttrImage(child, "handle");
	mHandleHoverImage = LoadAttrImage(child, "handlehover");
	}

	child = FindNode(node, "data");
	if (child)
	{
	attr = child->first_attribute("variable");
	if (attr)
	mVariable = attr->value();

	attr = child->first_attribute("min");
	if (attr)
	{
	mMinStr = gui_parse_text(attr->value());
	mMin = atoi(mMinStr.c_str());
	}

	attr = child->first_attribute("max");
	if (attr)
	{
	mMaxStr = gui_parse_text(attr->value());
	mMax = atoi(mMaxStr.c_str());
	}

	if (mMin > mMax)
	mMin = mMax;

	attr = child->first_attribute("default");
	if (attr)
	{
	string parsevalue = gui_parse_text(attr->value());
	int def = atoi(parsevalue.c_str());

	if (def < mMin)
	def = mMin;
	else if (def > mMax)
	def = mMax;
	DataManager::SetValue(mVariable, def);
	}

	attr = child->first_attribute("showrange");
	if (attr)
	mShowRange = atoi(attr->value());

	attr = child->first_attribute("showcurr");
	if (attr)
	mShowCurr = atoi(attr->value());

	attr = child->first_attribute("changeondrag");
	if (attr)
	mChangeOnDrag = atoi(attr->value());
	}

	child = FindNode(node, "dimensions");
	if (child)
	{
	mLineH = LoadAttrIntScaleY(child, "lineh", mLineH);
	mLinePadding = LoadAttrIntScaleX(child, "linepadding", mLinePadding);
	mSliderW = LoadAttrIntScaleX(child, "sliderw", mSliderW);
	mSliderH = LoadAttrIntScaleY(child, "sliderh", mSliderH);
	}

	if (mFont && mFont->GetResource())
	mFontHeight = mFont->GetHeight();
	else
	mFontHeight = 0;

	if (mShowCurr)
	{
	int maxLen = std::max(strlen(mMinStr.c_str()), strlen(mMaxStr.c_str()));
	mValueStr = new char[maxLen+1];
	}

	loadValue(true);

	if (mShowRange)
	{
	int textW = std::max(measureText(mMaxStr), measureText(mMinStr));
	mLinePadding += textW;
	}

	SetRenderPos(mRenderX, mRenderY, mRenderW);
	}

	GUISliderValue::~GUISliderValue()
	{
	delete mLabel;
	delete mAction;
	delete[] mValueStr;
	}

	void GUISliderValue::loadValue(bool force)
	{
	if (!mVariable.empty())
	{
	int value = DataManager::GetIntValue(mVariable);
	if (mValue == value && !force)
	return;

	mValue = value;
	}

	mValue = std::max(mValue, mMin);
	mValue = std::min(mValue, mMax);
	mValuePct = pctFromValue(mValue);
	mRendered = false;
	}

	int GUISliderValue::SetRenderPos(int x, int y, int w, int h)
	{
	mRenderX = x;
	mRenderY = y;
	if (w \|\| h)
	{
	mRenderW = w;
	mRenderH = h;
	}

	mRenderH = mSliderH;
	if (mShowCurr)
	mRenderH += mFontHeight;

	if (mLabel)
	{
	int lw, lh;
	mLabel->GetCurrentBounds(lw, lh);
	int textX = mRenderX + (mRenderW/2 - lw/2);

	mLabel->SetRenderPos(textX, mRenderY);

	y += lh;
	mRenderH += lh;
	}

	mSliderY = y;

	mActionX = mRenderX;
	mActionY = mRenderY;
	mActionW = mRenderW;
	mActionH = mRenderH;

	if (mBackgroundImage && mBackgroundImage->GetResource())
	{
	mLineW = mBackgroundImage->GetWidth();
	mLineH = mBackgroundImage->GetHeight();
	}
	else
	mLineW = mRenderW - (mLinePadding * 2);

	mLineY = y + (mSliderH/2 - mLineH/2);
	mLineX = mRenderX + (mRenderW/2 - mLineW/2);

	return 0;
	}

	int GUISliderValue::measureText(const std::string& str)
	{
	void* fontResource = NULL;
	if (mFont) fontResource = mFont->GetResource();

	return twrpTruetype::gr_ttf_measureEx(str.c_str(), fontResource);
	}

	int GUISliderValue::Render(void)
	{
	if (!isConditionTrue())
	{
	mRendered = false;
	return 0;
	}

	if (mLabel)
	{
	int w, h;
	mLabel->GetCurrentBounds(w, h);
	if (w != mLabelW) {
	mLabelW = w;
	int textX = mRenderX + (mRenderW/2 - mLabelW/2);
	mLabel->SetRenderPos(textX, mRenderY);
	}
	int res = mLabel->Render();
	if (res < 0)
	return res;
	}

	// line
	if (mBackgroundImage && mBackgroundImage->GetResource())
	{
	gr_blit(mBackgroundImage->GetResource(), 0, 0, mLineW, mLineH, mLineX, mLineY);
	}
	else
	{
	gr_color(mLineColor.red, mLineColor.green, mLineColor.blue, mLineColor.alpha);
	gr_fill(mLineX, mLineY, mLineW, mLineH);
	}

	// slider
	uint32_t sliderX = mLineX + (mValuePct*(mLineW - mSliderW))/100;

	if (mHandleImage && mHandleImage->GetResource())
	{
	gr_surface s = mHandleImage->GetResource();
	if (mDragging && mHandleHoverImage && mHandleHoverImage->GetResource())
	s = mHandleHoverImage->GetResource();
	gr_blit(s, 0, 0, mSliderW, mSliderH, sliderX, mLineY + (mLineH/2 - mSliderH/2));
	}
	else
	{
	gr_color(mSliderColor.red, mSliderColor.green, mSliderColor.blue, mSliderColor.alpha);
	gr_fill(sliderX, mSliderY, mSliderW, mSliderH);
	}

	void *fontResource = NULL;
	if (mFont) fontResource = mFont->GetResource();
	gr_color(mTextColor.red, mTextColor.green, mTextColor.blue, mTextColor.alpha);
	if (mShowRange)
	{
	int rangeY = (mLineY - mLineH/2) - mFontHeight/2;
	gr_textEx_scaleW(mRenderX + mPadding/2, rangeY, mMinStr.c_str(), fontResource, mRenderW, TOP_LEFT, 0);
	gr_textEx_scaleW(mLineX + mLineW + mPadding/2, rangeY, mMaxStr.c_str(), fontResource, mRenderW, TOP_LEFT, 0);
	}

	if (mValueStr && mShowCurr)
	{
	sprintf(mValueStr, "%d", mValue);
	int textW = measureText(mValueStr);
	gr_textEx_scaleW(mRenderX + (mRenderW/2 - textW/2), mSliderY+mSliderH, mValueStr, fontResource, mRenderW, TOP_LEFT, 0);
	}

	mRendered = true;
	return 0;
	}

	int GUISliderValue::Update(void)
	{
	if (!isConditionTrue())
	return mRendered ? 2 : 0;
	if (!mRendered)
	return 2;

	if (mLabel)
	return mLabel->Update();
	return 0;
	}

	int GUISliderValue::valueFromPct(float pct)
	{
	int range = abs(mMax - mMin);
	return mMin + (pct * range) / 100;
	}

	float GUISliderValue::pctFromValue(int value)
	{
	return float((value - mMin) * 100) / abs(mMax - mMin);
	}

	int GUISliderValue::NotifyTouch(TOUCH_STATE state, int x, int y)
	{
	if (!isConditionTrue())
	return -1;

	switch (state)
	{
	case TOUCH_START:
	if (x >= mLineX && x <= mLineX + mLineW &&
	y >= mRenderY && y <= mRenderY + mRenderH)
	{
	mDragging = true;
	}
	// no break
	case TOUCH_DRAG:
	{
	if (!mDragging) return 0;

	x = std::max(mLineX + mSliderW/2, x);
	x = std::min(mLineX + mLineW - mSliderW/2, x);

	mValuePct = float(((x - (mLineX + mSliderW/2)) * 100) / (mLineW - mSliderW));
	int newVal = valueFromPct(mValuePct);
	if (newVal != mValue) {
	mRendered = false;
	mValue = newVal;
	if (mChangeOnDrag) {
	if (!mVariable.empty())
	DataManager::SetValue(mVariable, mValue);
	if (mAction)
	mAction->doActions();
	}
	}
	break;
	}
	case TOUCH_RELEASE:
	{
	if (!mDragging) return 0;
	mDragging = false;

	if (!mVariable.empty())
	DataManager::SetValue(mVariable, mValue);
	if (mAction)
	mAction->doActions();
	break;
	}
	case TOUCH_REPEAT:
	case TOUCH_HOLD:
	break;
	}
	return 0;
	}

	int GUISliderValue::NotifyVarChange(const std::string& varName, const std::string& value)
	{
	GUIObject::NotifyVarChange(varName, value);

	if (mLabel)
	mLabel->NotifyVarChange(varName, value);
	if (varName == mVariable) {
	int newVal = atoi(value.c_str());
	if (newVal != mValue) {
	mValue = newVal;
	mValuePct = pctFromValue(mValue);
	mRendered = false;
	}
	}
	return 0;
	}

	void GUISliderValue::SetPageFocus(int inFocus)
	{
	if (inFocus)
	loadValue();
	}