Image can be edited in the dock widget

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3944 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/ui/imagepropertieswidget.cpp

@@ -0,0 +1,137 @@
+/*
+	Copyright 2006-2015 The QElectroTech Team
+	This file is part of QElectroTech.
+
+	QElectroTech 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.
+
+	QElectroTech 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 QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "imagepropertieswidget.h"
+#include "ui_imagepropertieswidget.h"
+#include "diagramimageitem.h"
+#include "diagramcommands.h"
+#include <QUndoCommand>
+
+/**
+ * @brief ImagePropertiesWidget::ImagePropertiesWidget
+ * Constructor
+ * @param image : image to edit properties
+ * @param parent : parent widget
+ */
+ImagePropertiesWidget::ImagePropertiesWidget(DiagramImageItem *image, QWidget *parent) :
+	PropertiesEditorWidget(parent),
+	ui(new Ui::ImagePropertiesWidget),
+	m_image(nullptr)
+{
+	ui->setupUi(this);
+	this->setDisabled(true);
+	setImageItem(image);
+}
+
+/**
+ * @brief ImagePropertiesWidget::~ImagePropertiesWidget
+ * Destructor
+ */
+ImagePropertiesWidget::~ImagePropertiesWidget() {
+	delete ui;
+}
+
+/**
+ * @brief ImagePropertiesWidget::setImageItem
+ * Set the image to edit properties
+ * @param image : image to edit
+ */
+void ImagePropertiesWidget::setImageItem(DiagramImageItem *image)
+{
+	if(!image) return;
+	this->setEnabled(true);
+	if (m_image == image) return;
+	if (m_image)
+		disconnect(m_image, SIGNAL(destroyed()), this, SLOT(imageWasDeleted()));
+
+	m_image = image;
+	connect(m_image, SIGNAL(destroyed()), this, SLOT(imageWasDeleted()));
+	m_movable = image->isMovable();
+	m_scale = m_image->scale();
+	updateUi();
+}
+
+/**
+ * @brief ImagePropertiesWidget::apply
+ * Apply the change
+ */
+void ImagePropertiesWidget::apply()
+{
+	if(!m_image) return;
+
+	if (m_image->diagram())
+		m_image->diagram()->undoStack().push(associatedUndo());
+
+	m_scale = m_image->scale();
+}
+
+/**
+ * @brief ImagePropertiesWidget::reset
+ * Reset the change
+ */
+void ImagePropertiesWidget::reset()
+{
+	if(!m_image) return;
+
+	m_image->setScale(m_scale);
+	m_image->setMovable(m_movable);
+	updateUi();
+}
+
+/**
+ * @brief ImagePropertiesWidget::associatedUndo
+ * @return the change in an undo command (ItemResizerCommand)
+ */
+QUndoCommand* ImagePropertiesWidget::associatedUndo()
+{
+	qreal value = ui->m_scale_slider->value();
+	value /= 100;
+	return new ItemResizerCommand(m_image, m_scale, value, tr("une image"));
+}
+
+/**
+ * @brief ImagePropertiesWidget::updateUi
+ * Udpdate the ui, notably when the image to edit change
+ */
+void ImagePropertiesWidget::updateUi()
+{
+	ui->m_scale_slider->setValue(m_scale * 100);
+	ui->m_lock_pos_cb->setChecked(!m_movable);
+}
+
+/**
+ * @brief ImagePropertiesWidget::on_m_scale_slider_valueChanged
+ * Update the size of image when move slider.
+ * @param value
+ */
+void ImagePropertiesWidget::on_m_scale_slider_valueChanged(int value)
+{
+	qreal scale = value;
+	m_image->setScale(scale / 100);
+}
+
+void ImagePropertiesWidget::imageWasDeleted() {
+	m_image = nullptr;
+}
+
+/**
+ * @brief ImagePropertiesWidget::on_m_lock_pos_cb_clicked
+ * Set movable or not the image according to corresponding check box
+ */
+void ImagePropertiesWidget::on_m_lock_pos_cb_clicked() {
+	m_image->setMovable(!ui->m_lock_pos_cb->isChecked());
+}