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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 Lesser General Public License as published by
* the Free Software Foundation; either version 3 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 <hugin.hpp>
#include <list>
#include <stdio.h>
#define BORDER 10
namespace GUI
{
TextEdit::TextEdit(Widget* parent) : Widget(parent), scroll(this)
{
setReadOnly(true);
scroll.move(width() - 23, 1);
scroll.resize(16, 100);
CONNECT(&scroll, valueChangeNotifier, this, &TextEdit::scrolled);
}
TextEdit::~TextEdit()
{
}
void TextEdit::resize(std::size_t width, std::size_t height)
{
Widget::resize(width, height);
scroll.resize(scroll.width(), height - 14);
scroll.move(width - 23, 7);
}
void TextEdit::setReadOnly(bool readonly)
{
this->readonly = readonly;
}
bool TextEdit::readOnly()
{
return readonly;
}
void TextEdit::setText(const std::string& text)
{
_text = text;
preprocessText();
redraw();
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 - 20 - 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();
// update values of scroll bar
scroll.setRange(height() / font.textHeight());
scroll.setMaximum(preprocessedtext.size());
int w = width();
int h = height();
if((w == 0) || (h == 0))
{
return;
}
box.setSize(w, h);
p.drawImage(0, 0, box);
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::scrollEvent(ScrollEvent* scrollEvent)
{
scroll.setValue(scroll.value() + scrollEvent->delta);
}
void TextEdit::scrolled(int value)
{
(void)value;
redraw();
}
} // GUI::
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