IconPreviewArea Class Reference

#include <iconpreviewarea.h>

Inheritance diagram for IconPreviewArea:

[legend]Collaboration diagram for IconPreviewArea:

[legend]List of all members.

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Detailed Description

Definition at line 32 of file iconpreviewarea.h.

Public Member Functions
	IconPreviewArea (QWidget *parent=0)
void	setIcon (const QIcon &icon)
void	setSize (const QSize &size)
Private Types
enum
Private Member Functions
QLabel *	createHeaderLabel (const QString &text)
QLabel *	createPixmapLabel ()
void	updatePixmapLabels ()
Private Attributes
QIcon	icon
QSize	size
QLabel *	stateLabels [NumStates]
QLabel *	modeLabels [NumModes]
QLabel *	pixmapLabels [NumModes][NumStates]

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Member Enumeration Documentation

anonymous enum [private]

Definition at line 47 of file iconpreviewarea.h.

{ NumModes = 4, NumStates = 2 };

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Constructor & Destructor Documentation

IconPreviewArea::IconPreviewArea

(

QWidget *

parent = 0

)

Definition at line 28 of file iconpreviewarea.cpp.

References QGridLayout::addWidget(), createHeaderLabel(), createPixmapLabel(), i, j, modeLabels, NumModes, NumStates, pixmapLabels, QWidget::setLayout(), and stateLabels.

    : QWidget(parent)
{
    QGridLayout *mainLayout = new QGridLayout;
    setLayout(mainLayout);

    stateLabels[0] = createHeaderLabel(tr("Off"));
    stateLabels[1] = createHeaderLabel(tr("On"));
    Q_ASSERT(NumStates == 2);

    modeLabels[0] = createHeaderLabel(tr("Normal"));
    modeLabels[1] = createHeaderLabel(tr("Active"));
    modeLabels[2] = createHeaderLabel(tr("Disabled"));
    modeLabels[3] = createHeaderLabel(tr("Selected"));
    Q_ASSERT(NumModes == 4);

    for (int j = 0; j < NumStates; ++j)
        mainLayout->addWidget(stateLabels[j], j + 1, 0);

    for (int i = 0; i < NumModes; ++i) {
        mainLayout->addWidget(modeLabels[i], 0, i + 1);

        for (int j = 0; j < NumStates; ++j) {
            pixmapLabels[i][j] = createPixmapLabel();
            mainLayout->addWidget(pixmapLabels[i][j], j + 1, i + 1);
        }
    }
}

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Member Function Documentation

void IconPreviewArea::setIcon

(

const QIcon &

icon

)

Definition at line 57 of file iconpreviewarea.cpp.

References icon, and updatePixmapLabels().

Referenced by MainWindow::changeIcon().

{
    this->icon = icon;
    updatePixmapLabels();
}

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void IconPreviewArea::setSize

(

const QSize &

size

)

Definition at line 63 of file iconpreviewarea.cpp.

References QWidget::size(), and updatePixmapLabels().

Referenced by MainWindow::changeSize().

{
    if (size != this->size) {
        this->size = size;
        updatePixmapLabels();
    }
}

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QLabel * IconPreviewArea::createHeaderLabel

(

const QString &

text

)

[private]

Definition at line 71 of file iconpreviewarea.cpp.

References Qt::AlignCenter, and QLabel::setAlignment().

Referenced by IconPreviewArea().

{
    QLabel *label = new QLabel(tr("<b>%1</b>").arg(text));
    label->setAlignment(Qt::AlignCenter);
    return label;
}

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QLabel * IconPreviewArea::createPixmapLabel

(

)

[private]

Definition at line 78 of file iconpreviewarea.cpp.

References Qt::AlignCenter, QPalette::Base, QFrame::Box, QSizePolicy::Expanding, QLabel::setAlignment(), QWidget::setBackgroundRole(), QWidget::setEnabled(), QFrame::setFrameShape(), QWidget::setMinimumSize(), and QWidget::setSizePolicy().

Referenced by IconPreviewArea().

{
    QLabel *label = new QLabel;
    label->setEnabled(false);
    label->setAlignment(Qt::AlignCenter);
    label->setFrameShape(QFrame::Box);
    label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    label->setBackgroundRole(QPalette::Base);
    label->setMinimumSize(132, 132);
    return label;
}

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void IconPreviewArea::updatePixmapLabels

(

)

[private]

Definition at line 90 of file iconpreviewarea.cpp.

References QIcon::Active, QIcon::Disabled, i, icon, QPixmap::isNull(), j, QIcon::Normal, NumModes, NumStates, QIcon::Off, QIcon::On, QIcon::pixmap(), pixmapLabels, QIcon::Selected, QWidget::setEnabled(), QLabel::setPixmap(), and QWidget::size().

Referenced by setIcon(), and setSize().

{
    for (int i = 0; i < NumModes; ++i) {
        QIcon::Mode mode;
        if (i == 0) {
            mode = QIcon::Normal;
        } else if (i == 1) {
            mode = QIcon::Active;
        } else if (i == 2) {
            mode = QIcon::Disabled;
        } else {
            mode = QIcon::Selected;
        }

        for (int j = 0; j < NumStates; ++j) {
            QIcon::State state = (j == 0) ? QIcon::Off : QIcon::On;
            QPixmap pixmap = icon.pixmap(size, mode, state);
            pixmapLabels[i][j]->setPixmap(pixmap);
            pixmapLabels[i][j]->setEnabled(!pixmap.isNull());
        }
    }
}

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Member Data Documentation

QIcon IconPreviewArea::icon [private]

Definition at line 49 of file iconpreviewarea.h.

Referenced by setIcon(), and updatePixmapLabels().

QSize IconPreviewArea::size [private]

Definition at line 50 of file iconpreviewarea.h.

QLabel* IconPreviewArea::stateLabels[NumStates] [private]

Definition at line 51 of file iconpreviewarea.h.

Referenced by IconPreviewArea().

QLabel* IconPreviewArea::modeLabels[NumModes] [private]

Definition at line 52 of file iconpreviewarea.h.

Referenced by IconPreviewArea().

QLabel* IconPreviewArea::pixmapLabels[NumModes][NumStates] [private]

Definition at line 53 of file iconpreviewarea.h.

Referenced by IconPreviewArea(), and updatePixmapLabels().

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The documentation for this class was generated from the following files:

• examples/widgets/icons/iconpreviewarea.h
• examples/widgets/icons/iconpreviewarea.cpp

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