InfoWidget.cpp

// Copyright (C) 2012-2015, Ali Baharev
// All rights reserved.
// This code is published under the GNU Lesser General Public License.
#include <QBoxLayout>
#include <QDebug>
#include <QDir>
#include <QFileInfo>
#include <QLabel>
#include <QRadioButton>
#include "InfoWidget.hpp"


namespace {
    const char GREEN[]  = "QLabel { background-color : #33FF00; }";
    const char YELLOW[] = "QLabel { background-color : #FFFF00; }";
    const char RED[]    = "QLabel { background-color : #FF0000; }";

    const char FIELD[] = "Field";
}

InfoWidget::InfoWidget(QWidget *parent) : QFrame(parent) {

    projectLabel = new QLabel("Please create a new or edit / select an existing file by clicking on one of icons on the left!", this);
    projectLabel->setAlignment(Qt::AlignHCenter);
    projectLabel->setFocusPolicy(Qt::NoFocus);

    rgfLabel = new QLabel(this);
    setLabel = new QLabel(this);
    xyLabel  = new QLabel(this);

    QHBoxLayout* hboxLayout = new QHBoxLayout(this);
    hboxLayout->addWidget(rgfLabel, 1);
    hboxLayout->addWidget(setLabel, 1);
    hboxLayout->addWidget( xyLabel, 1);
    hboxLayout->setContentsMargins(0, 0, 0, 0);

    fieldRadio = new QRadioButton("Field data processing", this);
    fieldRadio->setChecked(true);
    wellRadio  = new QRadioButton("Well data processing", this);
    trjLabel  = new QLabel(this);

    // keep this line after trjLabel initialization:
    // updateModePanel() references trjLabel
    connect(fieldRadio, SIGNAL(toggled(bool)), this, SLOT(updateModePanel()));

    QHBoxLayout* modeLayout = new QHBoxLayout(this);
    modeLayout->addWidget(fieldRadio, 1);
    modeLayout->addWidget(wellRadio, 1);
    modeLayout->addWidget(trjLabel,  2);
    modeLayout->setContentsMargins(0, 0, 0, 0);

    QVBoxLayout* vboxLayout = new QVBoxLayout(this);
    vboxLayout->addWidget(projectLabel);

    QWidget* dummy2 = new QWidget(this);
    dummy2->setLayout(modeLayout);
    vboxLayout->addWidget(dummy2);

    QWidget* dummy = new QWidget(this);
    dummy->setLayout(hboxLayout);
    vboxLayout->addWidget(dummy);

    setLayout(vboxLayout);
    setFrameStyle(QFrame::Box | QFrame::Raised);

    // a hack to make the infowidget as wide as the settings panel
    setContentsMargins(10, 5, 10, 5);
    vboxLayout->setContentsMargins(10, 5, 10, 5);

    fieldRadio->setFocusPolicy(Qt::StrongFocus);
    wellRadio->setFocusPolicy(Qt::StrongFocus);
}

void InfoWidget::setFocus(Qt::FocusReason reason) {
    if (wellRadio->isChecked())
        wellRadio->setFocus(reason);
    else
        fieldRadio->setFocus(reason);
}

void InfoWidget::checkSetFile() {
    updateSetLabel(fileExists(".set"));
}

void InfoWidget::newProjectSelected(const QString& newProjectPath, const QString& newProjectName) {

    projectPath = newProjectPath;
    projectName = newProjectName;
    projectLabel->setText("Project: <b>"+projectName+"</b>,  path: "+QDir::toNativeSeparators(projectPath));

    updateRgfLabel();
    bool isSetFileOK = false;
    updateSetLabel(isSetFileOK); // will be updated later anyway
    updateXyLabel();
}

bool InfoWidget::fileExists(const char extension[]) {
    QFileInfo finfo(projectPath+"/"+projectName+extension);
    return (finfo.exists() && finfo.isFile()) ? true : false;
}

void InfoWidget::setOkText(QLabel* lbl, const QString& msg) {
    lbl->setText(msg);
    lbl->setStyleSheet(GREEN);
}

void InfoWidget::setWarnText(QLabel* lbl, const QString& msg) {
    lbl->setText(msg);
    lbl->setStyleSheet(YELLOW);
}

void InfoWidget::setErrorText(QLabel* lbl, const QString& msg) {
    lbl->setText(msg);
    lbl->setStyleSheet(RED);
}

void InfoWidget::updateModePanel() {
    bool isWell = wellRadio->isChecked();
    if (isWell) {
        if (fileExists(".trj"))
            setOkText(trjLabel, "Trajectory file found");
        else
            setWarnText(trjLabel, "No trajectory file found, assuming vertical trajectory");
    }
    else {
        trjLabel->clear();
        trjLabel->setStyleSheet("background-color: rgba(0,0,0,0%)");
    }

    emit runModeChanged(isWell);
}

void InfoWidget::newSettingsFileLoaded(bool isWell, bool loadedCleanly) {
    if (isWell)
        wellRadio->setChecked(true);
    else
        fieldRadio->setChecked(true);
    updateModePanel();
    updateSetLabel(loadedCleanly);
}

void InfoWidget::updateRgfLabel() {
    if (fileExists(".rgf"))
        setOkText(rgfLabel, "Data file found");
    else
        setErrorText(rgfLabel, "Don\'t forget to create the data file!");
}

void InfoWidget::updateSetLabel(bool isOK) {
    if (isOK)
        setOkText(setLabel, "Settings from a previous run found");
    else
        setWarnText(setLabel, "The settings below need your attention");
}

void InfoWidget::updateXyLabel() {
    if (fileExists(".xy"))
        setOkText(xyLabel, "Coordinate file found");
    else
        setWarnText(xyLabel, "Not using any coordinate file");
}

void InfoWidget::freezeLabelSize() {
    freezeWidth(projectLabel);
    freezeWidth(rgfLabel);
    freezeWidth(setLabel);
    freezeWidth(xyLabel);
    freezeWidth(trjLabel);
}

void InfoWidget::freezeWidth(QLabel* lbl) {
    lbl->setFixedWidth(lbl->width());
}