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InsertImageDialog: support scaling image
This commit is contained in:
Le Tan
parent
5cc8d6c8f1
commit
9923feea14
@ -14,7 +14,6 @@ VInsertImageDialog::VInsertImageDialog(const QString &p_title,
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bool p_browsable,
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QWidget *p_parent)
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: QDialog(p_parent),
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m_image(NULL),
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m_browsable(p_browsable)
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{
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setupUI(p_title, p_imageTitle, p_imagePath);
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@ -35,40 +34,81 @@ VInsertImageDialog::VInsertImageDialog(const QString &p_title,
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handleInputChanged();
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}
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VInsertImageDialog::~VInsertImageDialog()
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{
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delete m_image;
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m_image = NULL;
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}
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void VInsertImageDialog::setupUI(const QString &p_title,
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const QString &p_imageTitle,
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const QString &p_imagePath)
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{
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QLabel *pathLabel = new QLabel(tr("&From:"));
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// Path.
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m_pathEdit = new VLineEdit(p_imagePath);
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pathLabel->setBuddy(m_pathEdit);
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browseBtn = new QPushButton(tr("&Browse"));
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m_pathEdit->setReadOnly(!m_browsable);
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browseBtn = new QPushButton(tr("&Browse"));
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browseBtn->setEnabled(m_browsable);
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QLabel *imageTitleLabel = new QLabel(tr("&Image title:"));
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// Title.
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m_imageTitleEdit = new VMetaWordLineEdit(p_imageTitle);
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m_imageTitleEdit->selectAll();
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imageTitleLabel->setBuddy(m_imageTitleEdit);
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QValidator *validator = new QRegExpValidator(QRegExp(VUtils::c_imageTitleRegExp),
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m_imageTitleEdit);
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m_imageTitleEdit->setValidator(validator);
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// Scale.
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m_widthSpin = new QSpinBox();
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m_widthSpin->setMinimum(1);
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m_widthSpin->setSingleStep(10);
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m_widthSpin->setSuffix(" px");
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connect(m_widthSpin, static_cast<void(QSpinBox::*)(int)>(&QSpinBox::valueChanged),
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this, [this](int p_val) {
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if (!m_image) {
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return;
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}
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int height = m_image->height() * (1.0 * p_val / m_image->width());
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m_imageLabel->resize(p_val, height);
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});
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// 0.1 to 2.0 -> 1 to 20.
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m_scaleSlider = new QSlider();
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m_scaleSlider->setOrientation(Qt::Horizontal);
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m_scaleSlider->setMinimum(1);
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m_scaleSlider->setMaximum(20);
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m_scaleSlider->setValue(10);
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m_scaleSlider->setSingleStep(1);
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m_scaleSlider->setPageStep(5);
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connect(m_scaleSlider, &QSlider::valueChanged,
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this, [this](int p_val) {
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if (!m_image) {
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return;
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}
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int width = m_image->width();
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qreal factor = 1.0;
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if (p_val != 10) {
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factor = p_val / 10.0;
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width = m_image->width() * factor;
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}
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m_widthSpin->setValue(width);
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m_sliderLabel->setText(QString::number(factor) + "x");
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});
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m_sliderLabel = new QLabel("1x");
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QGridLayout *topLayout = new QGridLayout();
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topLayout->addWidget(pathLabel, 0, 0);
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topLayout->addWidget(m_pathEdit, 0, 1);
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topLayout->addWidget(browseBtn, 0, 2);
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topLayout->addWidget(imageTitleLabel, 1, 0);
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topLayout->addWidget(m_imageTitleEdit, 1, 1, 1, 2);
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topLayout->addWidget(new QLabel(tr("From:")), 0, 0, 1, 1);
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topLayout->addWidget(m_pathEdit, 0, 1, 1, 3);
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topLayout->addWidget(browseBtn, 0, 4, 1, 1);
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topLayout->addWidget(new QLabel(tr("Title:")), 1, 0, 1, 1);
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topLayout->addWidget(m_imageTitleEdit, 1, 1, 1, 4);
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topLayout->addWidget(new QLabel(tr("Scaling width:")), 2, 0, 1, 1);
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topLayout->addWidget(m_widthSpin, 2, 1, 1, 1);
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topLayout->addWidget(m_scaleSlider, 2, 2, 1, 2);
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topLayout->addWidget(m_sliderLabel, 2, 4, 1, 1);
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topLayout->setColumnStretch(0, 0);
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topLayout->setColumnStretch(1, 1);
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topLayout->setColumnStretch(2, 0);
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topLayout->setColumnStretch(1, 0);
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topLayout->setColumnStretch(2, 1);
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topLayout->setColumnStretch(3, 1);
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topLayout->setColumnStretch(4, 0);
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// Ok is the default button.
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m_btnBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
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@ -76,15 +116,23 @@ void VInsertImageDialog::setupUI(const QString &p_title,
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connect(m_btnBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
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m_btnBox->button(QDialogButtonBox::Ok)->setProperty("SpecialBtn", true);
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imagePreviewLabel = new QLabel();
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imagePreviewLabel->setVisible(false);
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m_imageLabel = new QLabel();
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m_imageLabel->setScaledContents(true);
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m_previewArea = new QScrollArea();
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m_previewArea->setBackgroundRole(QPalette::Dark);
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m_previewArea->setWidget(m_imageLabel);
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int minWidth = 512 * VUtils::calculateScaleFactor();
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m_previewArea->setMinimumSize(minWidth, minWidth);
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setImageControlsVisible(false);
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QVBoxLayout *mainLayout = new QVBoxLayout();
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mainLayout->addLayout(topLayout);
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mainLayout->addWidget(m_btnBox);
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mainLayout->addWidget(imagePreviewLabel);
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mainLayout->addWidget(m_previewArea);
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setLayout(mainLayout);
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mainLayout->setSizeConstraint(QLayout::SetFixedSize);
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setWindowTitle(p_title);
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m_imageTitleEdit->setFocus();
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@ -133,34 +181,29 @@ void VInsertImageDialog::handleBrowseBtnClicked()
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m_imageTitleEdit->setFocus();
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}
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void VInsertImageDialog::setImage(const QImage &image)
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void VInsertImageDialog::setImage(const QImage &p_image)
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{
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if (image.isNull()) {
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imagePreviewLabel->setVisible(false);
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delete m_image;
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m_image = NULL;
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if (p_image.isNull()) {
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m_image.clear();
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m_imageLabel->clear();
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handleInputChanged();
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return;
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}
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int width = 512 * VUtils::calculateScaleFactor();
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QSize previewSize(width, width);
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if (!m_image) {
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m_image = new QImage(image);
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setImageControlsVisible(false);
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} else {
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*m_image = image;
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}
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m_image.reset(new QImage(p_image));
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QPixmap pixmap;
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if (image.width() > width || image.height() > width) {
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pixmap = QPixmap::fromImage(m_image->scaled(previewSize, Qt::KeepAspectRatio));
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} else {
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pixmap = QPixmap::fromImage(*m_image);
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}
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m_imageLabel->setPixmap(QPixmap::fromImage(*m_image));
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imagePreviewLabel->setPixmap(pixmap);
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imagePreviewLabel->setVisible(true);
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m_imageLabel->adjustSize();
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// Set the scaling widgets.
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m_scaleSlider->setValue(10);
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int width = m_image->width();
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m_widthSpin->setMaximum(width * 5);
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m_widthSpin->setValue(width);
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setImageControlsVisible(true);
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}
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handleInputChanged();
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}
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@ -281,3 +324,22 @@ void VInsertImageDialog::setPath(const QString &p_path)
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m_pathEdit->setText(p_path);
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handlePathEditChanged();
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}
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void VInsertImageDialog::setImageControlsVisible(bool p_visible)
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{
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m_widthSpin->setEnabled(p_visible);
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m_scaleSlider->setEnabled(p_visible);
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m_sliderLabel->setEnabled(p_visible);
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m_previewArea->setVisible(p_visible);
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}
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int VInsertImageDialog::getOverridenWidth() const
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{
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int width = m_widthSpin->value();
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if (m_image && m_image->width() != width) {
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return width;
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}
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return 0;
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}
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@ -13,6 +13,9 @@ class VLineEdit;
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class VMetaWordLineEdit;
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class QPushButton;
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class QDialogButtonBox;
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class QScrollArea;
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class QSpinBox;
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class QSlider;
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class VInsertImageDialog : public QDialog
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{
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@ -30,18 +33,19 @@ public:
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bool p_browsable = true,
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QWidget *p_parent = nullptr);
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~VInsertImageDialog();
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QString getImageTitleInput() const;
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QString getPathInput() const;
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void setImage(const QImage &image);
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void setImage(const QImage &p_image);
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QImage getImage() const;
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VInsertImageDialog::ImageType getImageType() const;
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// Return 0 if no override.
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int getOverridenWidth() const;
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public slots:
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void imageDownloaded(const QByteArray &data);
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@ -61,13 +65,22 @@ private:
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void setPath(const QString &p_path);
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void setImageControlsVisible(bool p_visible);
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VMetaWordLineEdit *m_imageTitleEdit;
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VLineEdit *m_pathEdit;
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QPushButton *browseBtn;
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QDialogButtonBox *m_btnBox;
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QLabel *imagePreviewLabel;
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QImage *m_image;
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QSpinBox *m_widthSpin;
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QSlider *m_scaleSlider;
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QLabel *m_sliderLabel;
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QDialogButtonBox *m_btnBox;
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QLabel *m_imageLabel;
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QScrollArea *m_previewArea;
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QSharedPointer<QImage> m_image;
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// Whether enable the browse action.
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bool m_browsable;
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@ -52,28 +52,51 @@ bool VMdEditOperations::insertImageFromMimeData(const QMimeData *source)
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insertImageFromQImage(dialog.getImageTitleInput(),
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m_file->fetchImageFolderPath(),
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m_file->getImageFolderInLink(),
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image);
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image,
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dialog.getOverridenWidth());
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}
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return true;
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}
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void VMdEditOperations::insertImageFromQImage(const QString &title,
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const QString &path,
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const QString &folderInLink,
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const QImage &image)
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// @p_width, @p_height: 0 if no override.
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static QString imageLink(const QString &p_title,
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const QString &p_url,
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int p_width = 0,
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int p_height = 0)
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{
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QString fileName = VUtils::generateImageFileName(path, title);
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QString filePath = QDir(path).filePath(fileName);
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QString scale;
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if (p_width > 0) {
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if (p_height > 0) {
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scale = QString(" =%1x%2").arg(p_width).arg(p_height);
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} else {
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scale = QString(" =%1x").arg(p_width);
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}
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} else if (p_height > 0) {
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scale = QString(" =x%1").arg(p_height);
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}
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return QString("").arg(p_title).arg(p_url).arg(scale);
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}
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void VMdEditOperations::insertImageFromQImage(const QString &p_title,
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const QString &p_folderPath,
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const QString &p_folderInLink,
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const QImage &p_image,
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int p_width,
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int p_height)
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{
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QString fileName = VUtils::generateImageFileName(p_folderPath, p_title);
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QString filePath = QDir(p_folderPath).filePath(fileName);
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V_ASSERT(!QFile(filePath).exists());
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QString errStr;
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bool ret = VUtils::makePath(path);
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bool ret = VUtils::makePath(p_folderPath);
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if (!ret) {
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errStr = tr("Fail to create image folder <span style=\"%1\">%2</span>.")
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.arg(g_config->c_dataTextStyle).arg(path);
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.arg(g_config->c_dataTextStyle).arg(p_folderPath);
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} else {
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ret = image.save(filePath);
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ret = p_image.save(filePath);
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if (!ret) {
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errStr = tr("Fail to save image <span style=\"%1\">%2</span>.")
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.arg(g_config->c_dataTextStyle).arg(filePath);
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@ -82,7 +105,7 @@ void VMdEditOperations::insertImageFromQImage(const QString &title,
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if (!ret) {
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VUtils::showMessage(QMessageBox::Warning, tr("Warning"),
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tr("Fail to insert image <span style=\"%1\">%2</span>.").arg(g_config->c_dataTextStyle).arg(title),
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tr("Fail to insert image <span style=\"%1\">%2</span>.").arg(g_config->c_dataTextStyle).arg(p_title),
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errStr,
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QMessageBox::Ok,
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QMessageBox::Ok,
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@ -90,11 +113,11 @@ void VMdEditOperations::insertImageFromQImage(const QString &title,
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return;
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}
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QString url = QString("%1/%2").arg(folderInLink).arg(fileName);
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QString md = QString("").arg(title).arg(url);
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insertText(md);
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QString url = QString("%1/%2").arg(p_folderInLink).arg(fileName);
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qDebug() << "insert image" << title << filePath;
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insertText(imageLink(p_title, url, p_width, p_height));
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qDebug() << "insert image" << p_title << filePath;
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VMdEditor *mdEditor = dynamic_cast<VMdEditor *>(m_editor);
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Q_ASSERT(mdEditor);
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@ -104,7 +127,9 @@ void VMdEditOperations::insertImageFromQImage(const QString &title,
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void VMdEditOperations::insertImageFromPath(const QString &p_title,
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const QString &p_folderPath,
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const QString &p_folderInLink,
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const QString &p_srcImagePath)
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const QString &p_srcImagePath,
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int p_width,
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int p_height)
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{
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insertImageFromPath(p_title,
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p_folderPath,
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@ -112,7 +137,9 @@ void VMdEditOperations::insertImageFromPath(const QString &p_title,
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p_srcImagePath,
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true,
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QString(),
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QString());
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QString(),
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p_width,
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p_height);
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}
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void VMdEditOperations::insertImageFromPath(const QString &p_title,
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@ -121,7 +148,9 @@ void VMdEditOperations::insertImageFromPath(const QString &p_title,
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const QString &p_srcImagePath,
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bool p_insertText,
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QString &p_destImagePath,
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QString &p_urlInLink)
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QString &p_urlInLink,
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int p_width,
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int p_height)
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{
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p_destImagePath.clear();
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p_urlInLink.clear();
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@ -161,8 +190,7 @@ void VMdEditOperations::insertImageFromPath(const QString &p_title,
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p_destImagePath = filePath;
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if (p_insertText) {
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QString md = QString("").arg(p_title).arg(p_urlInLink);
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insertText(md);
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insertText(imageLink(p_title, p_urlInLink, p_width, p_height));
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}
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qDebug() << "insert image" << p_title << filePath;
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@ -214,18 +242,21 @@ bool VMdEditOperations::insertImageFromURL(const QUrl &imageUrl)
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insertImageFromPath(dialog.getImageTitleInput(),
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m_file->fetchImageFolderPath(),
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m_file->getImageFolderInLink(),
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imagePath);
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imagePath,
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dialog.getOverridenWidth());
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} else {
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if (dialog.getImageType() == VInsertImageDialog::ImageType::LocalFile) {
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insertImageFromPath(dialog.getImageTitleInput(),
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m_file->fetchImageFolderPath(),
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m_file->getImageFolderInLink(),
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dialog.getPathInput());
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dialog.getPathInput(),
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dialog.getOverridenWidth());
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} else {
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insertImageFromQImage(dialog.getImageTitleInput(),
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m_file->fetchImageFolderPath(),
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m_file->getImageFolderInLink(),
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dialog.getImage());
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dialog.getImage(),
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dialog.getOverridenWidth());
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}
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}
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}
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@ -246,14 +277,16 @@ bool VMdEditOperations::insertImage()
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insertImageFromPath(dialog.getImageTitleInput(),
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m_file->fetchImageFolderPath(),
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m_file->getImageFolderInLink(),
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dialog.getPathInput());
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dialog.getPathInput(),
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dialog.getOverridenWidth());
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} else {
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QImage img = dialog.getImage();
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if (!img.isNull()) {
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insertImageFromQImage(dialog.getImageTitleInput(),
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m_file->fetchImageFolderPath(),
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m_file->getImageFolderInLink(),
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img);
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img,
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dialog.getOverridenWidth());
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}
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}
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}
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@ -1168,9 +1201,8 @@ bool VMdEditOperations::insertLink(const QString &p_linkText,
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bool VMdEditOperations::insertImageLink(const QString &p_linkText,
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const QString &p_linkUrl)
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{
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QString link = QString("").arg(p_linkText).arg(p_linkUrl);
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QTextCursor cursor = m_editor->textCursorW();
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cursor.insertText(link);
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cursor.insertText(imageLink(p_linkText, p_linkUrl));
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m_editor->setTextCursorW(cursor);
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setVimMode(VimMode::Insert);
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@ -41,7 +41,9 @@ public:
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const QString &p_srcImagePath,
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||||
bool p_insertText,
|
||||
QString &p_destImagePath,
|
||||
QString &p_urlInLink);
|
||||
QString &p_urlInLink,
|
||||
int p_width = 0,
|
||||
int p_height = 0);
|
||||
|
||||
private:
|
||||
// Insert image from @p_srcImagePath as to @p_folderPath.
|
||||
@ -49,14 +51,20 @@ private:
|
||||
void insertImageFromPath(const QString &p_title,
|
||||
const QString &p_folderPath,
|
||||
const QString &p_folderInLink,
|
||||
const QString &p_srcImagePath);
|
||||
const QString &p_srcImagePath,
|
||||
int p_width = 0,
|
||||
int p_height = 0);
|
||||
|
||||
// @title: title of the inserted image;
|
||||
// @path: the image folder path to insert the image in;
|
||||
// @folderInLink: the folder part in the image link.
|
||||
// @image: the image to be inserted;
|
||||
void insertImageFromQImage(const QString &title, const QString &path,
|
||||
const QString &folderInLink, const QImage &image);
|
||||
// @p_title: title of the inserted image;
|
||||
// @p_folderPath: the image folder path to insert the image in;
|
||||
// @p_folderInLink: the folder part in the image link.
|
||||
// @p_image: the image to be inserted;
|
||||
void insertImageFromQImage(const QString &p_title,
|
||||
const QString &p_folderPath,
|
||||
const QString &p_folderInLink,
|
||||
const QImage &p_image,
|
||||
int p_width = 0,
|
||||
int p_height = 0);
|
||||
|
||||
// Key press handlers.
|
||||
bool handleKeyTab(QKeyEvent *p_event);
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user