Initial Qt4 support for view-source feature (r13610), from Bo Peng (ben.bob@gmail.com)

* add src/frontend/qt4/QViewSource.h/C, QViewSourceDialog.h/C, ui/QViewSourceUi.ui
	* modify corresponding qt4/Makefile.am Makefile.dialogs, Dialogs.C


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13682 a592a061-630c-0410-9148-cb99ea01b6c8

src/frontends/qt4/Dialogs.C

@@ -27,6 +27,7 @@
 #include "ControlGraphics.h"
 #include "ControlInclude.h"
 #include "ControlLog.h"
+#include "ControlViewSource.h"
 #include "ControlMath.h"
 #include "ControlNote.h"
 #include "ControlParagraph.h"
@@ -67,6 +68,7 @@
 #include "QInclude.h"
 #include "QIndex.h"
 #include "QLog.h"
+#include "QViewSource.h"
 #include "QMath.h"
 #include "QNote.h"
 #include "QParagraph.h"
@@ -104,7 +106,7 @@ namespace {
 char const * const dialognames[] = {
 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
 "citation", "document", "errorlist", "ert", "external", "file",
-"findreplace", "float", "graphics", "include", "index", "label", "log",
+"findreplace", "float", "graphics", "include", "index", "label", "log", "view-source",
 "mathpanel", "mathdelimiter", "mathmatrix", "note", "paragraph", "preamble",
 "prefs", "print", "ref", "sendto", "spellchecker","tabular", "tabularcreate",
 
@@ -245,6 +247,10 @@ Dialogs::DialogPtr Dialogs::build(string const & name)
 		dialog->setController(new ControlLog(*dialog));
 		dialog->setView(new QLog(*dialog));
 		dialog->bc().bp(new OkCancelPolicy);
+	} else if (name == "view-source") {
+		dialog->setController(new ControlViewSource(*dialog));
+		dialog->setView(new QViewSource(*dialog));
+		dialog->bc().bp(new OkCancelPolicy);
 	} else if (name == "mathpanel") {
 		dialog->setController(new ControlMath(*dialog));
 		dialog->setView(new QMath(*dialog));

src/frontends/qt4/Makefile.am

@@ -50,6 +50,7 @@ libqt4_la_SOURCES = \
 	QLAction.C QLAction.h \
 	QLImage.C QLImage.h \
 	QLog.C QLog.h \
+	QViewSource.C QViewSource.h \
 	QLPainter.C QLPainter.h \
 	QLyXKeySym.C QLyXKeySym.h \
 	QMath.C QMath.h \

src/frontends/qt4/Makefile.dialogs

@@ -33,6 +33,7 @@ UIFILES = \
 	QIncludeUi.ui \
 	QIndexUi.ui \
 	QLogUi.ui \
+	QViewSourceUi.ui \
 	QMathUi.ui \
 	QMathMatrixUi.ui \
 	QNoteUi.ui \
@@ -101,6 +102,8 @@ MOCFILES = \
 	QIndexDialog.C QIndexDialog.h \
 	QLAction.C QLAction.h \
 	QLogDialog.C QLogDialog.h \
+	QViewSourceDialog.C QViewSourceDialog.h \
+	QViewSource.C QViewSource.h \
 	QLMenubar.C QLMenubar.h \
 	QLPopupMenu.C QLPopupMenu.h \
 	QLPrintDialog.C QLPrintDialog.h \

src/frontends/qt4/QViewSource.C

@@ -0,0 +1,110 @@
+/**
+ * \file QViewSource.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author John Levon
+ * \author Bo Peng
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#include <config.h>
+
+#include "QViewSource.h"
+#include "QViewSourceDialog.h"
+#include "qt_helpers.h"
+#include "lyx_gui.h"
+
+#include "controllers/ControlViewSource.h"
+
+#include <sstream>
+
+#include <QTextEdit>
+#include <QPushButton>
+
+namespace lyx {
+namespace frontend {
+
+typedef QController<ControlViewSource, QView<QViewSourceDialog> > base_class;
+
+
+QViewSource::QViewSource(Dialog & parent)
+	: base_class(parent, "")
+{}
+
+
+latexHighlighter::latexHighlighter(QTextDocument * parent) :
+	QSyntaxHighlighter(parent)
+{
+	keywordFormat.setForeground(Qt::darkBlue);
+	keywordFormat.setFontWeight(QFont::Bold);
+	commentFormat.setForeground(Qt::gray);
+	mathFormat.setForeground(Qt::red);
+}
+
+
+void latexHighlighter::highlightBlock(QString const & text)
+{
+	// comment
+	QRegExp exprComment("^%.*$");
+	int index = text.indexOf(exprComment);
+	while (index >= 0) {
+		int length = exprComment.matchedLength();
+		setFormat(index, length, commentFormat);
+		index = text.indexOf(exprComment, index + length);
+	}
+	// $ $ 
+	QRegExp exprMath("\\$[^\\$]*\\$");
+	index = text.indexOf(exprMath);
+	while (index >= 0) {
+		int length = exprMath.matchedLength();
+		setFormat(index, length, mathFormat);
+		index = text.indexOf(exprMath, index + length);
+	}
+	// [ ]
+	QRegExp exprDispMath("\\[[^\\]]*\\]");
+	index = text.indexOf(exprDispMath);
+	while (index >= 0) {
+		int length = exprDispMath.matchedLength();
+		setFormat(index, length, mathFormat);
+		index = text.indexOf(exprDispMath, index + length);
+	}
+	// \whatever
+	QRegExp exprKeyword("\\\\[A-Za-z]+");
+	index = text.indexOf(exprKeyword);
+	while (index >= 0) {
+		int length = exprKeyword.matchedLength();
+		setFormat(index, length, keywordFormat);
+		index = text.indexOf(exprKeyword, index + length);
+	}
+}
+
+
+void QViewSource::build_dialog()
+{
+	dialog_.reset(new QViewSourceDialog(this));
+	// set syntex highlighting
+	highlighter = new latexHighlighter(dialog_->viewSourceTV->document());
+	//
+	dialog_->viewSourceTV->setReadOnly(true);
+	dialog_->viewSourceTV->setTextFormat(Qt::PlainText);
+	// this is personal. I think source code should be in fixed-size font
+	QFont font(toqstr(lyx_gui::typewriter_font_name()));
+	font.setFixedPitch(true);
+	font.setStyleHint(QFont::TypeWriter);
+	dialog_->viewSourceTV->setFont(font);
+	// again, personal taste
+	dialog_->viewSourceTV->setWordWrapMode(QTextOption::NoWrap);
+}
+
+
+void QViewSource::update_contents()
+{
+	setTitle(controller().title());
+	dialog_->viewSourceTV->setText(toqstr(controller().updateContent()));
+}
+
+
+} // namespace frontend
+} // namespace lyx

src/frontends/qt4/QViewSource.h

@@ -0,0 +1,68 @@
+// -*- C++ -*-
+/**
+ * \file QViewSource.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author John Levon
+ * \author Bo Peng
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#ifndef QVIEWSOURCE_H
+#define QVIEWSOURCE_H
+
+#include "QDialogView.h"
+#include <QSyntaxHighlighter>
+
+namespace lyx {
+namespace frontend {
+
+class ControlViewSource;
+class QViewSourceDialog;
+class latexHighlighter;
+
+///
+class QViewSource
+	: public QController<ControlViewSource, QView<QViewSourceDialog> >
+{
+public:
+	///
+	friend class QViewSourceDialog;
+	///
+	QViewSource(Dialog &);
+private:
+	/// Apply changes
+	virtual void apply() {}
+	/// update
+	virtual void update_contents();
+	/// build the dialog
+	virtual void build_dialog();
+	/// latex syntax highlighter
+	latexHighlighter * highlighter;
+};
+
+
+///
+class latexHighlighter : public QSyntaxHighlighter
+{
+	Q_OBJECT
+	
+public:
+	latexHighlighter(QTextDocument * parent);
+
+protected:
+	void highlightBlock(QString const & text);
+
+private:
+	QTextCharFormat commentFormat;
+	QTextCharFormat keywordFormat;
+	QTextCharFormat mathFormat;
+};
+
+
+} // namespace frontend
+} // namespace lyx
+
+#endif // QVIEWSOURCE_H

src/frontends/qt4/QViewSourceDialog.C

@@ -0,0 +1,40 @@
+/**
+ * \file QViewSourceDialog.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author John Levon
+ * \author Bo Peng
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#include <config.h>
+
+#include "QViewSourceDialog.h"
+#include "QViewSource.h"
+
+#include <qpushbutton.h>
+
+
+namespace lyx {
+namespace frontend {
+
+QViewSourceDialog::QViewSourceDialog(QViewSource * form)
+	: form_(form)
+{
+	setupUi(this);
+
+	connect(closePB, SIGNAL(clicked()), form, SLOT(slotClose()));
+}
+
+
+void QViewSourceDialog::closeEvent(QCloseEvent * e)
+{
+	form_->slotWMHide();
+	e->accept();
+}
+
+
+} // namespace frontend
+} // namespace lyx

src/frontends/qt4/QViewSourceDialog.h

@@ -0,0 +1,36 @@
+// -*- C++ -*-
+/**
+ * \file QViewSourceDialog.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author John Levon
+ * \author Bo Peng
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#ifndef QVIEWSOURCEDIALOG_H
+#define QVIEWSOURCEDIALOG_H
+
+#include "ui/QViewSourceUi.h"
+
+namespace lyx {
+namespace frontend {
+
+class QViewSource;
+
+class QViewSourceDialog : public QDialog, public Ui::QViewSourceUi {
+	Q_OBJECT
+public:
+	QViewSourceDialog(QViewSource * form);
+protected:
+	virtual void closeEvent(QCloseEvent * e);
+private:
+	QViewSource * form_;
+};
+
+} // namespace frontend
+} // namespace lyx
+
+#endif // QVIEWSOURCEDIALOG_H

src/frontends/qt4/ui/QViewSourceUi.ui

@@ -0,0 +1,77 @@
+<ui version="4.0" >
+ <author></author>
+ <comment></comment>
+ <exportmacro></exportmacro>
+ <class>QViewSourceUi</class>
+ <widget class="QDialog" name="QViewSourceUi" >
+  <property name="geometry" >
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>420</width>
+    <height>328</height>
+   </rect>
+  </property>
+  <property name="windowTitle" >
+   <string/>
+  </property>
+  <property name="sizeGripEnabled" >
+   <bool>true</bool>
+  </property>
+  <layout class="QVBoxLayout" >
+   <property name="margin" >
+    <number>11</number>
+   </property>
+   <property name="spacing" >
+    <number>6</number>
+   </property>
+   <item>
+    <widget class="QTextEdit" name="viewSourceTV" >
+     <property name="whatsThis" >
+      <string>&lt;html>&lt;head>&lt;meta name="qrichtext" content="1" />&lt;/head>&lt;body style=" white-space: pre-wrap; font-family:Sans Serif; font-size:13pt; font-weight:400; font-style:normal; text-decoration:none;">&lt;p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">&lt;/p>&lt;/body>&lt;/html></string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" >
+     <property name="margin" >
+      <number>0</number>
+     </property>
+     <property name="spacing" >
+      <number>6</number>
+     </property>
+     <item>
+      <spacer>
+       <property name="orientation" >
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType" >
+        <enum>QSizePolicy::Expanding</enum>
+       </property>
+       <property name="sizeHint" >
+        <size>
+         <width>20</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="closePB" >
+       <property name="text" >
+        <string>&amp;Close</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <pixmapfunction>qPixmapFromMimeSource</pixmapfunction>
+ <tabstops>
+  <tabstop>viewSourceTV</tabstop>
+  <tabstop>closePB</tabstop>
+ </tabstops>
+ <resources/>
+ <connections/>
+</ui>