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/*LICENSE_START*/
/*
* Copyright 1995-2002 Washington University School of Medicine
*
* http://brainmap.wustl.edu
*
* This file is part of CARET.
*
* CARET 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.
*
* CARET 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 CARET; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*LICENSE_END*/
#include <algorithm>
#include <iostream>
#include <QApplication>
#include <QClipboard>
#include <QDesktopWidget>
#include <QDir>
#include <QImage>
#include <QImageWriter>
#include <QKeyEvent>
#include <QMessageBox>
#include <QPainter>
#include <QString>
#include <QDialog>
#include <QPrintDialog>
#include <QPrinter>
#include <QPushButton>
#include <QSizePolicy>
#include <QThread>
#include "FileUtilities.h"
#include "QtRadioButtonSelectionDialog.h"
#include "QtUtilities.h"
#include "StringUtilities.h"
#include "WuQFileDialog.h"
/**
* Set the sizes of a vector of buttons to the size of the button with
* the largest width.
*/
void
QtUtilities::makeButtonsSameSize(std::vector<QPushButton*>& buttons)
{
int maxWidth = -1;
QSize size;
for (unsigned int i = 0; i < buttons.size(); i++) {
if (buttons[i] != NULL) {
if (buttons[i]->sizeHint().width() > maxWidth) {
size = buttons[i]->sizeHint();
maxWidth = size.width();
}
}
}
if (maxWidth > 0) {
for (unsigned int i = 0; i < buttons.size(); i++) {
if (buttons[i] != NULL) {
buttons[i]->setFixedSize(size);
}
}
}
}
/**
* Set the sizes of buttons to the size of the button with the largest width.
*/
void
QtUtilities::makeButtonsSameSize(QPushButton* b1,
QPushButton* b2,
QPushButton* b3,
QPushButton* b4,
QPushButton* b5,
QPushButton* b6)
{
std::vector<QPushButton*> buttons;
buttons.push_back(b1);
buttons.push_back(b2);
buttons.push_back(b3);
buttons.push_back(b4);
buttons.push_back(b5);
buttons.push_back(b6);
if (buttons.size() > 0) {
makeButtonsSameSize(buttons);
}
}
/**
* position a dialog to that it is off of a window.
*/
void
QtUtilities::positionWindowOffOtherWindow(const QWidget* otherWindow,
QWidget* window)
{
QDesktopWidget* dt = QApplication::desktop();
const int dtWidth = dt->width();
const int dtHeight = dt->height();
const int otherX = otherWindow->x();
const int otherY = otherWindow->y();
const int otherWidth = otherWindow->width();
const int otherHeight = otherWindow->height();
const int spaceOnSide[4] = {
otherX, // left
dtWidth - otherX + otherWidth, // right
dtHeight - (otherY + otherHeight), // bottom (0 is top)
otherY // top
};
int maxIndx = 0;
int maxSpace = spaceOnSide[0];
for (int i = 1; i < 4; i++) {
if (spaceOnSide[i] > maxSpace) {
maxIndx = i;
maxSpace = spaceOnSide[i];
}
}
int newX = 0;
int newY = 0;
switch(maxIndx) {
case 0:
newX = otherX - window->width();
newY = otherY;
break;
case 1:
newX = otherX + otherWidth;
newY = otherY;
break;
case 2:
newX = otherX;
newY = otherY + otherHeight;
break;
case 3:
newX = otherX;
newY = otherY - window->height();
break;
}
newX = std::max(newX, 100);
newX = std::min(newX, (dtWidth - 100));
newY = std::max(newY, 100);
newY = std::min(newY, (dtHeight - 100));
window->move(newX, newY);
}
/**
* Position and set the size of a dialog so that it is over the main window.
*/
void
QtUtilities::positionAndSetDialogSize(QWidget* mainWindow, QDialog* dialog, const QSize& desiredSize)
{
QDesktopWidget desktop;
QRect desktopRect = desktop.screenGeometry();
QRect mainWindowRect = mainWindow->geometry();
const int x = mainWindowRect.left();
const int y = mainWindowRect.top() + 25;
const int width = mainWindowRect.width();
// std::cout << "Main window: "
int xsize = desiredSize.width();
if ((x +xsize) > desktopRect.right()) {
xsize = desktopRect.right() - x - 20;
}
if (xsize < width) {
xsize = width;
if (xsize > 600) {
xsize = 600;
}
}
const int windowHeight = (desktopRect.bottom() - 50);
int ysize = desiredSize.height();
if ((y + ysize) > windowHeight) {
ysize = windowHeight - y - 20;
}
if (ysize < 300) {
ysize = 300;
}
dialog->setGeometry(x, y, xsize, ysize);
}
QSizePolicy&
QtUtilities::fixedSizePolicy()
{
static QSizePolicy sizePolicyFixed(QSizePolicy::Fixed, QSizePolicy::Fixed);
return sizePolicyFixed;
}
/**
* save the dialog into an image.
*/
void
QtUtilities::saveWidgetAsImage(QWidget* widget)
{
std::vector<QString> itemChoices;
itemChoices.push_back("Copy to Clipboard");
itemChoices.push_back("Print");
itemChoices.push_back("Save to File");
static int defaultItem = 2;
QtRadioButtonSelectionDialog choiceDialog(widget,
"Capture Image",
"What would you like to do\n"
"with the captured image?",
itemChoices,
defaultItem);
if (choiceDialog.exec() != QDialog::Accepted) {
return;
}
QImage image = QPixmap::grabWidget(widget).toImage();
defaultItem = choiceDialog.getSelectedItemIndex();
switch (choiceDialog.getSelectedItemIndex()) {
case 0:
saveWidgetAsImageToClipboard(image);
break;
case 1:
saveWidgetAsImageToPrinter(widget, image);
break;
case 2:
saveWidgetAsImageToFile(widget, image);
break;
}
}
/**
* copy an image of the widget to the clipboard.
*/
void
QtUtilities::saveWidgetAsImageToClipboard(QImage& image)
{
QApplication::clipboard()->setImage(image, QClipboard::Clipboard);
}
/**
* print an image of the widget.
*/
void
QtUtilities::saveWidgetAsImageToPrinter(QWidget* widget, QImage& image)
{
QPrinter printer;
QPrintDialog dialog(&printer, widget);
if (dialog.exec() == QDialog::Accepted) {
QPainter painter(&printer);
painter.drawImage(0, 0, image);
}
}
/**
* save an image of the widget to file.
*/
void
QtUtilities::saveWidgetAsImageToFile(QWidget* widget, QImage& image)
{
static QString previousFileFilter;
//
// Create the file filters and file extensions and find the jpeg and ppm filters
//
QStringList fileFilterList;
std::vector<QString> fileFilters;
std::vector<QString> fileExtensions;
std::vector<QString> fileFormats;
QString jpegFileFilter;
QString ppmFileFilter;
for (int i = 0; i < QImageWriter::supportedImageFormats().count(); i++) {
QString str = QString(QImageWriter::supportedImageFormats().at(i));
QString filter;
if ((str == "JPEG") || (str == "jpeg")) {
filter = QString("%1 Image File (*.jpg *.jpeg)").arg(str);
fileExtensions.push_back("jpg");
jpegFileFilter = filter;
}
else if ((str == "JPEG") || (str == "JPG")) {
filter = QString("%1 Image File (*.jpg *.jpeg)").arg(str);
fileExtensions.push_back("jpg");
jpegFileFilter = filter;
}
else {
filter = QString("%1 Image File (*.%2)").arg(str).arg(
StringUtilities::makeLowerCase(str));
fileExtensions.push_back(StringUtilities::makeLowerCase(str));
if (filter == "PPM") {
ppmFileFilter = filter;
}
}
fileFilterList << filter;
fileFilters.push_back(filter);
fileFormats.push_back(str);
}
//
// Create the file dialog
//
WuQFileDialog saveImageDialog(widget);
saveImageDialog.setModal(true);
saveImageDialog.setWindowTitle(QString("Save Image of ") + widget->objectName());
saveImageDialog.setFileMode(WuQFileDialog::AnyFile);
saveImageDialog.setAcceptMode(WuQFileDialog::AcceptSave);
saveImageDialog.setDirectory(QDir::currentPath());
//
// Set the file filters
//
saveImageDialog.setFilters(fileFilterList);
if (previousFileFilter.isEmpty() == false) {
saveImageDialog.selectFilter(previousFileFilter);
}
else if (jpegFileFilter.isEmpty() == false) {
saveImageDialog.selectFilter(jpegFileFilter);
}
else if (ppmFileFilter.isEmpty() == false) {
saveImageDialog.selectFilter(ppmFileFilter);
}
//
// Execute the dialog
//
if (saveImageDialog.exec() == WuQFileDialog::Accepted) {
QString name(saveImageDialog.selectedFiles().at(0));
//
// Get the selected file filter
//
previousFileFilter = saveImageDialog.selectedFilter();
//
// Find the file filter
//
int fileFilterIndex = -1;
for (unsigned int i = 0; i < fileFilters.size(); i++) {
if (fileFilters[i] == previousFileFilter) {
fileFilterIndex = i;
break;
}
}
//
// See if invalid filter index
//
if (fileFilterIndex < 0) {
QString msg("Program Error: invalid file filter index when saving image file.");
QApplication::beep();
QMessageBox::critical(widget, "PROGRAM ERROR", msg, "OK");
return;
}
if (FileUtilities::filenameExtension(name) != fileExtensions[fileFilterIndex]) {
name.append(".");
name.append(fileExtensions[fileFilterIndex]);
}
if (image.save(name, fileFormats[fileFilterIndex].toAscii().constData(), 100) == false) {
QApplication::beep();
QMessageBox::critical(widget, "ERROR", "Unable to save image.", "OK");
}
}
}
/**
* get the image capture key.
*/
bool
QtUtilities::getImageCaptureKeySelected(QKeyEvent* ke)
{
if ((ke->key() == Qt::Key_F1) &&
(ke->modifiers() & Qt::ControlModifier) &&
(ke->modifiers() & Qt::ShiftModifier)) {
return true;
}
return false;
}
/**
* get the maximum height for a dialog or window.
*/
int
QtUtilities::getMaximumWindowHeight()
{
const int mh = QApplication::desktop()->height() - 100;
return mh;
}
/**
* print the size of the widget.
*/
void
QtUtilities::printWidgetSizeHint(QWidget* w, const QString& widgetName)
{
const QSize sz = w->sizeHint();
std::cout << "Size of widget " << widgetName.toAscii().constData() << " ("
<< sz.width() << ", " << sz.height() << ")" << std::endl;
}
/**
* set the maximum height for a widget (gets around bug in QT if minimum size greater than maximum).
*/
void
QtUtilities::setMaximumHeightToNinetyPercentOfScreenHeight(QWidget* w)
{
//std::cout << "Min Height: " << minimumHeight() << std::endl;
const float mh = QtUtilities::getMaximumWindowHeight();
const int maxHeight = static_cast<int>(mh * 0.90);
//std::cout << "Max Height: " << mh << std::endl;
w->setMinimumHeight(maxHeight / 2);
w->setMaximumHeight(maxHeight);
w->updateGeometry();
}
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