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Diffstat (limited to 'plugingui/textedit.cc')
| -rw-r--r-- | plugingui/textedit.cc | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/plugingui/textedit.cc b/plugingui/textedit.cc new file mode 100644 index 0000000..36258e9 --- /dev/null +++ b/plugingui/textedit.cc @@ -0,0 +1,214 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * lineedit.cc + * + * Tue Oct 21 11:25:26 CEST 2014 + * Copyright 2014 Jonas Suhr Christensen + * jsc@umbraculum.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo 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 2 of the License, or + * (at your option) any later version. + * + * DrumGizmo 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 DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "textedit.h" + +#include "window.h" + +#include <assert.h> +#include <list> +#include <hugin.hpp> +#include <stdio.h> + +#define BORDER 10 + +namespace GUI { + +TextEdit::TextEdit(Widget *parent) + : Widget(parent) + , scroll(this) +{ + setReadOnly(true); + + scroll.move(width() - 5, 1); + scroll.resize(20, 100); + CONNECT(&scroll, valueChangeNotifier, this, &TextEdit::scrolled); + + box.topLeft = new Image(":widget_tl.png"); + box.top = new Image(":widget_t.png"); + box.topRight = new Image(":widget_tr.png"); + box.left = new Image(":widget_l.png"); + box.right = new Image(":widget_r.png"); + box.bottomLeft = new Image(":widget_bl.png"); + box.bottom = new Image(":widget_b.png"); + box.bottomRight = new Image(":widget_br.png"); + box.center = new Image(":widget_c.png"); +} + +TextEdit::~TextEdit() +{ + delete box.topLeft; + delete box.top; + delete box.topRight; + delete box.left; + delete box.right; + delete box.bottomLeft; + delete box.bottom; + delete box.bottomRight; + delete box.center; +} + +void TextEdit::resize(int height, int width) +{ + Widget::resize(height, width); + scroll.resize(scroll.width(), height-10); + scroll.move(width-30,7); +} + +void TextEdit::setReadOnly(bool readonly) +{ + this->readonly = readonly; +} + +bool TextEdit::readOnly() +{ + return readonly; +} + +void TextEdit::setText(const std::string& text) +{ + _text = text; + + preprocessText(); + + int ran = height() / font.textHeight(); + + DEBUG(textedit, "Setting range and max of scrollbar to '%d' and '%d'\n", + ran, preprocessedtext.size()); + + scroll.setRange(ran); + scroll.setMaximum(preprocessedtext.size()); + + repaintEvent(nullptr); + + textChangedNotifier(); +} + +std::string TextEdit::text() +{ + return _text; +} + +void TextEdit::preprocessText() +{ + preprocessedtext.clear(); + std::string text = _text; + + { // Handle tab characters + for(size_t i = 0; i < text.length(); ++i) + { + char ch = text.at(i); + if(ch == '\t') + { + text.erase(i, 1); + text.insert(i, 4, ' '); + } + } + } + + std::list<std::string> lines; + { // Handle new line characters + size_t pos = 0; + do + { + pos = text.find("\n"); + lines.push_back(text.substr(0, pos)); + text = text.substr(pos+1); + } + while(pos != std::string::npos); + } + + { // Wrap long lines + std::list<std::string>::iterator it; + for(it = lines.begin(); it != lines.end(); ++it) + { + std::string line = *it; + + for(size_t i = 0; i < line.length(); ++i) + { + size_t linewidth = font.textWidth(line.substr(0, i)); + if(linewidth >= width() - BORDER - 4 + 3 - 10 - scroll.width()) { + preprocessedtext.push_back(line.substr(0, i)); + line = line.substr(i); + i = 0; + } + } + preprocessedtext.push_back(line); + } + } +} + +void TextEdit::repaintEvent(RepaintEvent* repaintEvent) +{ + Painter p(*this); + + p.clear(); + + int w = width(); + int h = height(); + if((w == 0) || (h == 0)) + { + return; + } + + p.drawBox(0, 0, box, w, h); + + p.setColour(Colour(183.0 / 255.0, 219.0 / 255.0 , 255.0 / 255.0, 1)); + + int skip = scroll.value(); + + int ypos = font.textHeight() + 5 + 1 + 1 + 1; + std::list<std::string>::iterator it; + it = preprocessedtext.begin(); + + int c = 0; + for( ; c < skip; c++) + { + ++it; + } + + c = 0; + for( ; it != preprocessedtext.end(); it++) + { + if((c * font.textHeight()) >= (height() - 8 - font.textHeight())) + { + break; + } + + std::string line = *it; + p.drawText(BORDER - 4 + 3, ypos, font, line); + ypos += font.textHeight(); + ++c; + } +} + +void TextEdit::scrolled(int value) +{ + (void)value; + repaintEvent(nullptr); +} + +} // GUI:: |