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tdeutils/superkaramba/src/textlabel.cpp

380 lines
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/***************************************************************************
* Copyright (C) 2003 by Hans Karlsson *
* karlsson.h@home.se *
* *
* This program 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. *
***************************************************************************/
#include <krun.h>
#include <stdlib.h>
#include "textlabel.h"
TextLabel::TextLabel(karamba *k, int x,int y,int w,int h):
Meter(k, x,y,w,h), alignment(TQt::AlignLeft), clip(0), bgColor(0, 0, 0),
lineHeight(0), shadow(0), scrollSpeed(0, 0), scrollPos(0, 0), scrollGap(0),
scrollPause(0), pauseCounter(0), scrollType(ScrollNone)
{
calculateTextSize();
if( h != 0 || w != 0)
clip = 0;
else
clip = TQt::DontClip;
if( h == 0 || w == 0)
{
setWidth(-1);
setHeight(-1);
}
}
TextLabel::TextLabel(karamba *k):
Meter(k, 0, 0, 0, 0), alignment(TQt::AlignLeft), clip(0), bgColor(0, 0, 0),
lineHeight(0), shadow(0), scrollSpeed(0, 0), scrollPos(0, 0), scrollGap(0),
scrollPause(0), pauseCounter(0), scrollType(ScrollNone)
{
}
TextLabel::~TextLabel()
{
}
void TextLabel::show()
{
Meter::show();
setEnabled(true);
}
void TextLabel::hide()
{
Meter::hide();
setEnabled(false);
}
void TextLabel::setTextProps( TextField* t )
{
if(t)
{
text = *t;
//lineHeight = t->getLineHeight();
shadow = t->getShadow();
alignment = t->getAlignment();
setFontSize(t->getFontSize());
setFont(t->getFont());
setColor(t->getColor());
setBGColor(t->getBGColor());
}
calculateTextSize();
}
void TextLabel::calculateTextSize()
{
int tmp;
TQFontMetrics fm(font);
lineHeight = fm.height();
textSize.setWidth(0);
textSize.setHeight(lineHeight * value.count());
TQStringList::Iterator it = value.begin();
while(it != value.end())
{
tmp = fm.width(*it);
if(tmp > textSize.width())
textSize.setWidth(tmp);
++it;
}
}
void TextLabel::setValue( TQString text)
{
value = TQStringList::split('\n',text);
calculateTextSize();
}
void TextLabel::setValue( long v)
{
value = TQStringList( TQString::number( v ) );
calculateTextSize();
}
void TextLabel::setBGColor(TQColor clr)
{
bgColor = clr;
}
TQColor TextLabel::getBGColor() const
{
return bgColor;
}
void TextLabel::setFont(TQString f)
{
font.setFamily(f);
calculateTextSize();
}
TQString TextLabel::getFont() const
{
return font.family();
}
void TextLabel::setFontSize(int size)
{
font.setPixelSize(size);
calculateTextSize();
}
int TextLabel::getFontSize() const
{
return font.pixelSize();
}
void TextLabel::setAlignment( TQString align )
{
TQString a = align.upper();
if( a == "LEFT" || a.isEmpty() )
alignment = TQt::AlignLeft;
if( a == "RIGHT" )
alignment = TQt::AlignRight;
if( a == "CENTER" )
alignment = TQt::AlignHCenter;
}
TQString TextLabel::getAlignment() const
{
if( alignment == TQt::AlignHCenter )
return "CENTER";
else if( alignment == TQt::AlignRight )
return "RIGHT";
else
return "LEFT";
}
void TextLabel::setFixedPitch( bool fp)
{
font.setFixedPitch( fp );
}
bool TextLabel::getFixedPitch() const
{
return font.fixedPitch();
}
void TextLabel::setShadow ( int s )
{
shadow = s;
}
int TextLabel::getShadow() const
{
return shadow;
}
void TextLabel::setScroll(char* type, TQPoint speed, int gap, int pause)
{
ScrollType t = TextLabel::ScrollNone;
TQString a = type;
a = a.upper();
if(a == "NONE")
t = TextLabel::ScrollNone;
else if( a == "NORMAL" )
t = TextLabel::ScrollNormal;
else if( a == "BACKANDFORTH" )
t = TextLabel::ScrollBackAndForth;
else if( a == "ONEPASS" )
t = TextLabel::ScrollOnePass;
setScroll(t, speed, gap, pause);
}
void TextLabel::setScroll(ScrollType type, TQPoint speed, int gap, int pause)
{
scrollType = type;
scrollSpeed = speed;
switch(scrollType)
{
case ScrollNormal:
case ScrollOnePass:
{
int x = 0, y = 0;
if(speed.x() > 0)
x = -1 * textSize.width();
else if(speed.x() < 0)
x = getWidth()-1;
if(speed.y() > 0)
x = -1 * textSize.height();
else if(speed.y() < 0)
x = getHeight()-1;
scrollPos = TQPoint(x,y);
break;
}
case ScrollNone:
case ScrollBackAndForth:
default:
scrollPos = TQPoint(0,0);
break;
}
scrollGap = gap;
scrollPause = pause;
pauseCounter = 1;
}
int TextLabel::drawText(TQPainter *p, int x, int y, int width, int height,
TQString text)
{
if( shadow != 0)
{
p->setPen(getBGColor());
p->drawText(x + shadow, y + shadow, width, height,
alignment | clip | TQt::ExpandTabs, text);
}
p->setPen(getColor());
p->drawText(x, y, width, height, alignment | clip | TQt::ExpandTabs, text);
return 0;
}
bool TextLabel::calculateScrollCoords(TQRect meterRect, TQRect &textRect,
TQPoint &next, int &x, int &y)
{
if(scrollType == ScrollBackAndForth &&
(scrollSpeed.x() != 0 && textSize.width() < getWidth() ||
scrollSpeed.y() != 0 && textSize.height() < getHeight()))
return true;
x += scrollPos.x();
y += scrollPos.y();
if(pauseCounter < 1)
{
scrollPos += scrollSpeed;
// -1 | 0 | 1
TQPoint direction(scrollSpeed.x()/abs((scrollSpeed.x() == 0)?
1:scrollSpeed.x()),
scrollSpeed.y()/abs((scrollSpeed.y() == 0)?
1:scrollSpeed.y()));
next = TQPoint(-1 * direction.x() * (scrollGap + textSize.width()),
-1 * direction.y() * (scrollGap + textSize.height()));
textRect.setCoords(x, y, x + textSize.width(), y + textSize.height());
if(scrollType == ScrollBackAndForth)
{
if(direction.x() < 0 && textRect.right() <= meterRect.right() ||
direction.x() > 0 && textRect.left() >= meterRect.left())
{
scrollSpeed.setX(scrollSpeed.x() * -1);
pauseCounter = scrollPause;
}
if(direction.y() < 0 && textRect.bottom() <= meterRect.bottom() ||
direction.y() > 0 && textRect.top() >= meterRect.top())
{
scrollSpeed.setY(scrollSpeed.y() * -1);
pauseCounter = scrollPause;
}
}
else if(!textRect.intersects(meterRect))
{
if(scrollType == ScrollNormal)
scrollPos += next;
else if(scrollType == ScrollOnePass)
return false;
}
}
else
--pauseCounter;
return true;
}
void TextLabel::mUpdate(TQPainter *p)
{
if (hidden != 1)
{
int i = 0; //lineHeight;
int row = 1;
int x = getX();
int y = getY();
int width = getWidth();
int height = getHeight();
TQRect meterRect(x, y, width, height);
TQRect textRect;
TQPoint next;
p->setFont(font);
if(scrollType != ScrollNone)
{
p->setClipRect(x, y, width, height);
if(!calculateScrollCoords(meterRect, textRect, next, x, y))
{
p->setClipping(false);
return;
}
width = textSize.width();
height = textSize.height();
}
TQStringList::Iterator it = value.begin();
while(it != value.end() && (row <= height || height == -1 ))
{
drawText(p, x, y + i, width, height, *it);
// Draw more instances of text if scroll type is normal scroll
if(scrollType == ScrollNormal)
{
textRect.addCoords(next.x(), next.y(), next.x(), next.y());
while(textRect.intersects(meterRect))
{
drawText(p, textRect.x(), textRect.y() + i, width, height, *it);
textRect.addCoords(next.x(), next.y(), next.x(), next.y());
}
}
i += lineHeight;
it++;
row++;
}
if(scrollType != ScrollNone)
p->setClipping(false);
}
}
bool TextLabel::click(TQMouseEvent* e)
{
if (getBoundingBox().contains(e -> x(), e -> y()) && isEnabled())
{
TQString program;
if (e -> button() == Qt::LeftButton)
{
program = leftButtonAction;
}
else if (e -> button() == Qt::MidButton)
{
program = middleButtonAction;
}
else if (e -> button() == Qt::RightButton)
{
program = rightButtonAction;
}
if( !program.isEmpty() )
{
KRun::runCommand(program);
}
else
{
return true;
}
}
return false;
}
void TextLabel::attachClickArea(TQString leftMouseButton,
TQString middleMouseButton,
TQString rightMouseButton)
{
leftButtonAction = leftMouseButton;
middleButtonAction = middleMouseButton;
rightButtonAction = rightMouseButton;
}
#include "textlabel.moc"