finalcut/src/ftooltip.cpp

179 lines
4.7 KiB
C++

/***********************************************************************
* ftooltip.cpp - Widget FToolTip *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2016-2017 Markus Gans *
* *
* The Final Cut 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. *
* *
* The Final Cut 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 this program. If not, see *
* <http://www.gnu.org/licenses/>. *
***********************************************************************/
#include "final/fapplication.h"
#include "final/ftooltip.h"
//----------------------------------------------------------------------
// class FToolTip
//----------------------------------------------------------------------
// constructor and destructor
//----------------------------------------------------------------------
FToolTip::FToolTip (FWidget* parent)
: FWindow(parent)
, text()
, text_components(0)
, text_split()
, max_line_width(0)
, text_num_lines(0)
{
init();
}
//----------------------------------------------------------------------
FToolTip::FToolTip (const FString& txt, FWidget* parent)
: FWindow(parent)
, text(txt)
, text_components(0)
, text_split()
, max_line_width(0)
, text_num_lines(0)
{
init();
}
//----------------------------------------------------------------------
FToolTip::~FToolTip() // destructor
{
FApplication* fapp = static_cast<FApplication*>(getRootWidget());
if ( fapp->isQuit() )
return;
FWindow* parent_win = 0;
if ( FWidget* parent = getParentWidget() )
parent_win = getWindowWidget(parent);
if ( parent_win )
setActiveWindow (parent_win);
else
switchToPrevWindow();
}
// public methods of FToolTip
//----------------------------------------------------------------------
void FToolTip::setText (const FString& txt)
{
text = txt;
calculateDimensions();
}
//----------------------------------------------------------------------
void FToolTip::draw()
{
setColor();
if ( getMaxColor() < 16 )
setBold();
clearArea();
drawBorder();
for (int i = 0; i < int(text_num_lines); i++)
{
setPrintPos (3, 2 + i);
print(text_components[i]);
}
unsetBold();
}
//----------------------------------------------------------------------
void FToolTip::show()
{
if ( ! isVisible() )
return;
FWindow::show();
}
//----------------------------------------------------------------------
void FToolTip::hide()
{
FWindow::hide();
}
//----------------------------------------------------------------------
void FToolTip::onMouseDown (FMouseEvent*)
{
setClickedWidget(0);
close();
}
// private methods of FToolTip
//----------------------------------------------------------------------
void FToolTip::init()
{
setAlwaysOnTop();
ignorePadding();
// initialize geometry values
setGeometry (1, 1, 3, 3, false);
setMinimumSize (3, 3);
setForegroundColor (wc.tooltip_fg);
setBackgroundColor (wc.tooltip_bg);
calculateDimensions();
}
//----------------------------------------------------------------------
void FToolTip::calculateDimensions()
{
int x, y, w, h;
FWidget* r = getRootWidget();
text_split = text.split("\n");
text_num_lines = uInt(text_split.size());
text_components = &text_split[0];
max_line_width = 0;
for (uInt i = 0; i < text_num_lines; i++)
{
uInt len = text_components[i].getLength();
if ( len > max_line_width )
max_line_width = len;
}
h = int(text_num_lines) + 2;
w = int(max_line_width + 4);
if ( r )
{
x = 1 + int((r->getWidth() - w) / 2);
y = 1 + int((r->getHeight() - h) / 2);
}
else
x = y = 1;
setGeometry (x, y, w, h);
}
//----------------------------------------------------------------------
void FToolTip::adjustSize()
{
calculateDimensions();
FWindow::adjustSize();
}