1 files changed, 443 insertions, 0 deletions
diff --git a/gui/slidervalue.cpp b/gui/slidervalue.cpp
new file mode 100644
index 000000000..3aaffcc05
--- /dev/null
+++ b/gui/slidervalue.cpp
@@ -0,0 +1,443 @@
+/*
+	Copyright 2017 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 "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 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();
+}