44925ad190
Allows the GUI to create a scrollable text box for long text that may not all fit on the screen. Also includes code to allow the console to wrap on spaces and other such characters instead of wrapping in the middle of a word. To see an example of how to add a text box to the XML, see: https://gerrit.omnirom.org/#/c/14183/ Change-Id: Ifd139172ede290046b58ea3fe526e2e06da1d4ef
121 lines
3.2 KiB
C++
121 lines
3.2 KiB
C++
/*
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Copyright 2015 bigbiff/Dees_Troy/_that TeamWin
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This file is part of TWRP/TeamWin Recovery Project.
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TWRP is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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TWRP is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with TWRP. If not, see <http://www.gnu.org/licenses/>.
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*/
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// textbox.cpp - GUITextBox object
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#include <string>
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extern "C" {
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#include "../twcommon.h"
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#include "../minuitwrp/minui.h"
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}
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#include "rapidxml.hpp"
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#include "objects.hpp"
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GUITextBox::GUITextBox(xml_node<>* node) : GUIScrollList(node)
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{
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xml_node<>* child;
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mLastCount = 0;
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mIsStatic = true;
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allowSelection = false; // textbox doesn't support list item selections
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child = FindNode(node, "color");
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if (child)
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{
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mFontColor = LoadAttrColor(child, "foreground", mFontColor);
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mBackgroundColor = LoadAttrColor(child, "background", mBackgroundColor);
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//mScrollColor = LoadAttrColor(child, "scroll", mScrollColor);
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}
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child = FindNode(node, "text");
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while (child) {
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string txt = child->value();
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mText.push_back(txt);
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string lookup = gui_parse_text(txt);
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if (lookup != txt)
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mIsStatic = false;
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mLastValue.push_back(lookup);
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child = child->next_sibling("text");
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}
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}
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int GUITextBox::Update(void)
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{
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if (AddLines(&mLastValue, NULL, &mLastCount, &rText, NULL)) {
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// someone added new text
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// at least the scrollbar must be updated, even if the new lines are currently not visible
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mUpdate = 1;
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}
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GUIScrollList::Update();
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if (mUpdate) {
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mUpdate = 0;
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if (Render() == 0)
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return 2;
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}
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return 0;
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}
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size_t GUITextBox::GetItemCount()
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{
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return rText.size();
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}
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void GUITextBox::RenderItem(size_t itemindex, int yPos, bool selected __unused)
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{
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// Set the color for the font
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gr_color(mFontColor.red, mFontColor.green, mFontColor.blue, mFontColor.alpha);
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// render text
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const char* text = rText[itemindex].c_str();
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gr_textEx(mRenderX, yPos, text, mFont->GetResource());
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}
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void GUITextBox::NotifySelect(size_t item_selected __unused)
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{
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// do nothing - textbox ignores selections
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}
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int GUITextBox::NotifyVarChange(const std::string& varName, const std::string& value)
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{
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GUIScrollList::NotifyVarChange(varName, value);
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if(!isConditionTrue() || mIsStatic)
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return 0;
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// Check to see if the variable exists in mText
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for (size_t i = 0; i < mText.size(); i++) {
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string lookup = gui_parse_text(mText.at(i));
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if (lookup != mText.at(i)) {
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mLastValue.at(i) = lookup;
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mUpdate = 1;
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// There are ways to improve efficiency here, but I am not
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// sure if we will even use this feature in the stock theme
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// at all except for language translation. If we start using
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// variables in textboxes in the stock theme, we can circle
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// back and make improvements here.
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mLastCount = 0;
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rText.clear();
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}
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}
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return 0;
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}
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