Added context menu entries and a basic, non-WYSIWYG template editor to add, modify and delete title block templates embedded within a project.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/branches/0.3@1133 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/templateeditor.cpp

@@ -0,0 +1,170 @@
+#include "templateeditor.h"
+#include <QtXml>
+#include "qetproject.h"
+#include "qetapp.h"
+
+/**
+	Constructor
+	@param parent parent QWidget for this editor
+	@param f Windows flags for this editor
+	@see QWidget()
+*/
+TemplateEditor::TemplateEditor(QWidget *parent, Qt::WindowFlags f) :
+	QWidget(parent, f),
+	parent_project_(0)
+{
+	build();
+}
+
+/**
+	Destructor
+*/
+TemplateEditor::~TemplateEditor() {
+}
+
+/**
+	Edit the given template.
+	@param project Parent project of the template to edit.
+	@param template_name Name of the template to edit within its parent project.
+*/
+bool TemplateEditor::edit(QETProject *project, const QString &template_name) {
+	// we require a project we will rattach templates to
+	if (!project) return(false);
+	parent_project_ = project;
+	updateProjectLabel();
+	
+	// the template name may be empty to create a new element
+	if (template_name.isEmpty()) {
+		template_name_edit_ -> setText(tr("Nouveau-modele"));
+		template_name_edit_ -> setReadOnly(false);
+		return(true);
+	}
+	
+	QDomElement xml_tb_template = project -> getTemplateXmlDescriptionByName(template_name);
+	if (!xml_tb_template.isNull()) {
+		QDomDocument xml_doc;
+		xml_doc.appendChild(xml_doc.importNode(xml_tb_template, true));
+		template_name_edit_ -> setText(template_name);
+		template_name_edit_ -> setReadOnly(true);
+		template_xml_edit_ -> setPlainText(xml_doc.toString(4));
+		
+		// stores the parent project and template name, in order to write/save the template later
+		template_name_ = template_name;
+		return(true);
+	}
+	return(false);
+}
+
+/**
+	Validates the content of the current text area. It has to be a valid XML
+	description of a title block template for this method not to display a
+	message to the user.
+	@todo implement it.
+*/
+void TemplateEditor::validate() {
+	QMessageBox::information(
+		this,
+		tr("Not implemented yet"),
+		tr("Sorry, Not implemented yet")
+	);
+}
+
+/**
+	Saves the content of the current text area to a template within the project.
+*/
+void TemplateEditor::save() {
+	if (!parent_project_) return;
+	
+	// are we creating a new template?
+	if (!template_name_edit_ -> isReadOnly()) {
+		// Yes, so we must ensure the new name will not clatch with an existing ine
+		if (parent_project_ -> embeddedTitleBlockTemplates().contains(template_name_edit_ -> text())) {
+			QMessageBox::critical(
+				this,
+				tr("Un mod\350le de ce nom existe d\351j\340"),
+				tr("Un mod\350le de ce nom existe d\351j\340 au sein du projet - veuillez choisir un autre nom.")
+			);
+			/// TODO propose to overwrite the existing template?
+			return;
+		}
+		
+	}
+	
+	QDomDocument xml_doc;
+	bool parsing = xml_doc.setContent(template_xml_edit_ -> toPlainText());
+	if (!parsing) {
+		QMessageBox::critical(
+			this,
+			tr("Code XML non valide"),
+			tr("Le code XML du mod\350le ne semble pas \320tre valide. Impossible d'enregistrer le mod\350le.")
+		);
+		return;
+	}
+	
+	if (!template_name_edit_ -> isReadOnly()) {
+		template_name_edit_ -> setReadOnly(true);
+		template_name_ = template_name_edit_ -> text();
+	}
+	parent_project_ -> setTemplateXmlDescription(template_name_, xml_doc.documentElement());
+}
+
+/**
+	Exits this editor.
+*/
+void TemplateEditor::quit() {
+	/// TODO save if needed
+	close();
+}
+
+/**
+	Builds the user interface.
+*/
+void TemplateEditor::build() {
+	parent_project_label_ = new QLabel();
+	updateProjectLabel();
+	template_name_edit_ = new QLineEdit();
+	template_xml_edit_ = new QTextEdit();
+	template_xml_edit_ -> setAcceptRichText(false);
+	template_xml_edit_ -> setFontFamily("monospace");
+	template_xml_edit_ -> setWordWrapMode(QTextOption::NoWrap);
+	
+	validate_button_ = new QPushButton(tr("V\351rifier le mod\350le"));
+	save_button_ = new QPushButton(tr("Enregistrer et appliquer"));
+	quit_button_ = new QPushButton(tr("Quitter"));
+	
+	connect(validate_button_, SIGNAL(released()), this, SLOT(validate()));
+	connect(save_button_,     SIGNAL(released()), this, SLOT(save()));
+	connect(quit_button_,     SIGNAL(released()), this, SLOT(quit()));
+	
+	QHBoxLayout *h_layout0 = new QHBoxLayout();
+	h_layout0 -> addWidget(validate_button_);
+	h_layout0 -> addWidget(save_button_);
+	h_layout0 -> addWidget(quit_button_);
+	
+	QVBoxLayout *v_layout0 = new QVBoxLayout();
+	v_layout0 -> addWidget(parent_project_label_);
+	v_layout0 -> addWidget(template_name_edit_);
+	v_layout0 -> addWidget(template_xml_edit_);
+	v_layout0 -> addLayout(h_layout0);
+	
+	setLayout(v_layout0);
+	
+	setWindowTitle(tr("QElectroTech - \311diteur de mod\350le de cartouche"));
+	resize(700, 500);
+}
+
+/**
+	Updates the "Parent project:" label.
+*/
+void TemplateEditor::updateProjectLabel() {
+	QString parent_project_title;
+	if (parent_project_) {
+		parent_project_title = parent_project_ -> pathNameTitle();
+	} else {
+		parent_project_title = tr("Non d\351fini");
+	}
+	
+	parent_project_label_ -> setText(
+		QString(tr("Projet parent : %1")).arg(parent_project_title)
+	);
+}