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Diffstat (limited to '')
| -rw-r--r-- | gui/text.cpp | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/gui/text.cpp b/gui/text.cpp new file mode 100644 index 000000000..123b2499d --- /dev/null +++ b/gui/text.cpp @@ -0,0 +1,186 @@ +/* + Copyright 2012 to 2016 bigbiff/Dees_Troy 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/>. +*/ + +// text.cpp - GUIText 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" + +GUIText::GUIText(xml_node<>* node) + : GUIObject(node) +{ + mFont = NULL; + mIsStatic = 1; + mVarChanged = 0; + mFontHeight = 0; + maxWidth = 0; + scaleWidth = true; + isHighlighted = false; + mText = ""; + + if (!node) + return; + + // Load colors + mColor = LoadAttrColor(node, "color", COLOR(0,0,0,255)); + mHighlightColor = LoadAttrColor(node, "highlightcolor", mColor); + + // Load the font, and possibly override the color + mFont = LoadAttrFont(FindNode(node, "font"), "resource"); + if (!mFont || !mFont->GetResource()) + return; + mColor = LoadAttrColor(FindNode(node, "font"), "color", mColor); + mHighlightColor = LoadAttrColor(FindNode(node, "font"), "highlightcolor", mColor); + + // Load the placement + LoadPlacement(FindNode(node, "placement"), &mRenderX, &mRenderY, &mRenderW, &mRenderH, &mPlacement); + + xml_node<>* child = FindNode(node, "text"); + if (child) mText = child->value(); + + child = FindNode(node, "noscaling"); + if (child) { + scaleWidth = false; + } else { + if (mPlacement == TOP_LEFT || mPlacement == BOTTOM_LEFT) { + maxWidth = gr_fb_width() - mRenderX; + } else if (mPlacement == TOP_RIGHT || mPlacement == BOTTOM_RIGHT) { + maxWidth = mRenderX; + } else if (mPlacement == CENTER || mPlacement == CENTER_X_ONLY) { + if (mRenderX < gr_fb_width() / 2) { + maxWidth = mRenderX * 2; + } else { + maxWidth = (gr_fb_width() - mRenderX) * 2; + } + } + } + + // Simple way to check for static state + mLastValue = gui_parse_text(mText); + if (mLastValue != mText) mIsStatic = 0; + + mFontHeight = mFont->GetHeight(); +} + +int GUIText::Render(void) +{ + if (!isConditionTrue()) + return 0; + + void* fontResource = NULL; + if (mFont) + fontResource = mFont->GetResource(); + else + return -1; + + mLastValue = gui_parse_text(mText); + + mVarChanged = 0; + + if (isHighlighted) + gr_color(mHighlightColor.red, mHighlightColor.green, mHighlightColor.blue, mHighlightColor.alpha); + else + gr_color(mColor.red, mColor.green, mColor.blue, mColor.alpha); + + gr_textEx_scaleW(mRenderX, mRenderY, mLastValue.c_str(), fontResource, maxWidth, mPlacement, scaleWidth); + + return 0; +} + +int GUIText::Update(void) +{ + if (!isConditionTrue()) + return 0; + + static int updateCounter = 3; + + // This hack just makes sure we update at least once a minute for things like clock and battery + if (updateCounter) updateCounter--; + else + { + mVarChanged = 1; + updateCounter = 3; + } + + if (mIsStatic || !mVarChanged) + return 0; + + std::string newValue = gui_parse_text(mText); + if (mLastValue == newValue) + return 0; + else + mLastValue = newValue; + return 2; +} + +int GUIText::GetCurrentBounds(int& w, int& h) +{ + void* fontResource = NULL; + + if (mFont) + fontResource = mFont->GetResource(); + + h = mFontHeight; + mLastValue = gui_parse_text(mText); + w = gr_ttf_measureEx(mLastValue.c_str(), fontResource); + return 0; +} + +int GUIText::NotifyVarChange(const std::string& varName, const std::string& value) +{ + GUIObject::NotifyVarChange(varName, value); + + mVarChanged = 1; + return 0; +} + +int GUIText::SetMaxWidth(unsigned width) +{ + maxWidth = width; + if (!maxWidth) + scaleWidth = false; + mVarChanged = 1; + return 0; +} + +void GUIText::SetText(string newtext) +{ + mText = newtext; +} |