179 lines
4.7 KiB
C++
179 lines
4.7 KiB
C++
/***********************************************************************
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* ftooltip.cpp - Widget FToolTip *
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* *
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* This file is part of the Final Cut widget toolkit *
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* *
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* Copyright 2016-2017 Markus Gans *
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* *
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* The Final Cut is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public License *
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* as published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* The Final Cut is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this program. If not, see *
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* <http://www.gnu.org/licenses/>. *
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***********************************************************************/
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#include "final/fapplication.h"
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#include "final/ftooltip.h"
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//----------------------------------------------------------------------
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// class FToolTip
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//----------------------------------------------------------------------
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// constructor and destructor
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//----------------------------------------------------------------------
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FToolTip::FToolTip (FWidget* parent)
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: FWindow(parent)
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, text()
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, text_components(0)
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, text_split()
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, max_line_width(0)
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, text_num_lines(0)
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{
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init();
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}
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//----------------------------------------------------------------------
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FToolTip::FToolTip (const FString& txt, FWidget* parent)
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: FWindow(parent)
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, text(txt)
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, text_components(0)
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, text_split()
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, max_line_width(0)
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, text_num_lines(0)
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{
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init();
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}
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//----------------------------------------------------------------------
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FToolTip::~FToolTip() // destructor
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{
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FApplication* fapp = static_cast<FApplication*>(getRootWidget());
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if ( fapp->isQuit() )
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return;
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FWindow* parent_win = 0;
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if ( FWidget* parent = getParentWidget() )
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parent_win = getWindowWidget(parent);
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if ( parent_win )
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setActiveWindow (parent_win);
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else
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switchToPrevWindow();
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}
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// public methods of FToolTip
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//----------------------------------------------------------------------
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void FToolTip::setText (const FString& txt)
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{
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text = txt;
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calculateDimensions();
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}
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//----------------------------------------------------------------------
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void FToolTip::draw()
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{
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setColor();
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if ( getMaxColor() < 16 )
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setBold();
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clearArea();
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drawBorder();
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for (int i = 0; i < int(text_num_lines); i++)
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{
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setPrintPos (3, 2 + i);
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print(text_components[i]);
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}
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unsetBold();
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}
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//----------------------------------------------------------------------
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void FToolTip::show()
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{
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if ( ! isVisible() )
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return;
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FWindow::show();
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}
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//----------------------------------------------------------------------
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void FToolTip::hide()
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{
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FWindow::hide();
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}
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//----------------------------------------------------------------------
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void FToolTip::onMouseDown (FMouseEvent*)
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{
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setClickedWidget(0);
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close();
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}
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// private methods of FToolTip
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//----------------------------------------------------------------------
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void FToolTip::init()
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{
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setAlwaysOnTop();
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ignorePadding();
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// initialize geometry values
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setGeometry (1, 1, 3, 3, false);
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setMinimumSize (3, 3);
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setForegroundColor (wc.tooltip_fg);
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setBackgroundColor (wc.tooltip_bg);
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calculateDimensions();
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}
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//----------------------------------------------------------------------
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void FToolTip::calculateDimensions()
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{
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int x, y, w, h;
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FWidget* r = getRootWidget();
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text_split = text.split("\n");
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text_num_lines = uInt(text_split.size());
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text_components = &text_split[0];
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max_line_width = 0;
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for (uInt i = 0; i < text_num_lines; i++)
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{
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uInt len = text_components[i].getLength();
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if ( len > max_line_width )
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max_line_width = len;
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}
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h = int(text_num_lines) + 2;
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w = int(max_line_width + 4);
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if ( r )
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{
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x = 1 + int((r->getWidth() - w) / 2);
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y = 1 + int((r->getHeight() - h) / 2);
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}
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else
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x = y = 1;
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setGeometry (x, y, w, h);
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}
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//----------------------------------------------------------------------
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void FToolTip::adjustSize()
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{
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calculateDimensions();
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FWindow::adjustSize();
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}
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