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+/* -*- 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, (int)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::