QTfrontend/drawmapwidget.cpp
author nemo
Wed, 22 Dec 2010 21:33:46 -0500
changeset 4637 0f22a53c4c1d
parent 4586 4ba4f021070f
child 4976 088d40d8aba2
permissions -rw-r--r--
enable snow on Christmas theme
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
     1
#include <QFile>
4586
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
     2
#include <QMessageBox>
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
     3
4477
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
     4
#include "drawmapwidget.h"
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
     5
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
     6
DrawMapWidget::DrawMapWidget(QWidget *parent) :
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
     7
    QWidget(parent),
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
     8
    ui(new Ui::DrawMapWidget)
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
     9
{
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    10
    ui->setupUi(this);
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    11
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    12
    m_scene = 0;
4477
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    13
}
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    14
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    15
DrawMapWidget::~DrawMapWidget()
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    16
{
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    17
    delete ui;
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    18
}
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    19
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    20
void DrawMapWidget::changeEvent(QEvent *e)
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    21
{
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    22
    QWidget::changeEvent(e);
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    23
    switch (e->type()) {
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    24
    case QEvent::LanguageChange:
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    25
        ui->retranslateUi(this);
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    26
        break;
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    27
    default:
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    28
        break;
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    29
    }
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    30
}
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    31
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    32
void DrawMapWidget::setScene(DrawMapScene * scene)
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    33
{
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    34
    ui->graphicsView->setScene(scene);
4586
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    35
    m_scene = scene;
4477
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    36
}
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    37
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    38
void DrawMapWidget::resizeEvent(QResizeEvent * event)
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    39
{
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    40
    Q_UNUSED(event);
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    41
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    42
    if(ui->graphicsView && ui->graphicsView->scene())
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    43
        ui->graphicsView->fitInView(ui->graphicsView->scene()->sceneRect(), Qt::KeepAspectRatio);
63a21fac8bf7 Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
unc0rr
parents:
diff changeset
    44
}
4556
c7f4eb6cbd0c Make use of showEvent, so there's no more need in manual resizing of draw map widget
unc0rr
parents: 4520
diff changeset
    45
c7f4eb6cbd0c Make use of showEvent, so there's no more need in manual resizing of draw map widget
unc0rr
parents: 4520
diff changeset
    46
void DrawMapWidget::showEvent(QShowEvent * event)
c7f4eb6cbd0c Make use of showEvent, so there's no more need in manual resizing of draw map widget
unc0rr
parents: 4520
diff changeset
    47
{
c7f4eb6cbd0c Make use of showEvent, so there's no more need in manual resizing of draw map widget
unc0rr
parents: 4520
diff changeset
    48
    Q_UNUSED(event);
c7f4eb6cbd0c Make use of showEvent, so there's no more need in manual resizing of draw map widget
unc0rr
parents: 4520
diff changeset
    49
c7f4eb6cbd0c Make use of showEvent, so there's no more need in manual resizing of draw map widget
unc0rr
parents: 4520
diff changeset
    50
    resizeEvent(0);
c7f4eb6cbd0c Make use of showEvent, so there's no more need in manual resizing of draw map widget
unc0rr
parents: 4520
diff changeset
    51
}
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    52
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    53
void DrawMapWidget::undo()
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    54
{
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    55
    if(m_scene) m_scene->undo();
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    56
}
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    57
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    58
void DrawMapWidget::clear()
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    59
{
4586
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    60
    if(m_scene) m_scene->clearMap();
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    61
}
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    62
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    63
void DrawMapWidget::save(const QString & fileName)
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    64
{
4586
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    65
    if(m_scene)
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    66
    {
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    67
        QFile file(fileName);
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    68
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    69
        if(!file.open(QIODevice::WriteOnly))
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    70
            QMessageBox::warning(this, tr("File error"), tr("Cannot open file '%1' for writing").arg(fileName));
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    71
        else
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    72
            file.write(qCompress(m_scene->encode()).toBase64());
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    73
    }
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    74
}
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    75
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    76
void DrawMapWidget::load(const QString & fileName)
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    77
{
4586
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    78
    if(m_scene)
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    79
    {
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    80
        QFile f(fileName);
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    81
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    82
        if(!f.open(QIODevice::ReadOnly))
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    83
            QMessageBox::warning(this, tr("File error"), tr("Cannot read file '%1'").arg(fileName));
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    84
        else
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    85
            m_scene->decode(qUncompress(QByteArray::fromBase64(f.readAll())));
4ba4f021070f - Allow user to use undo, to clear, save and load drawn maps
unc0rr
parents: 4560
diff changeset
    86
    }
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4556
diff changeset
    87
}