From 197e8955a4e78cc0eea94181ed0034f11320c0cc Mon Sep 17 00:00:00 2001
From: Oskar Linde <oskar.linde@gmail.com>
Date: Sat, 1 Feb 2014 15:53:18 +0100
Subject: Editor: Implement Search & Replace

Conflicts:
	src/MainWindow.h

diff --git a/src/MainWindow.h b/src/MainWindow.h
index a908be0..e16f5b4 100644
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -117,12 +117,16 @@ private slots:
 
 private slots:
 	void actionRenderCSG();
+	void selectFindType(int);
 	void find();
+	void findAndReplace();
 	void findNext();
 	void findPrev();
 	void useSelectionForFind();
+	void replace();
+	void replaceAll();
 protected:
-	void findOperation(QTextDocument::FindFlags options = 0);
+	bool findOperation(QTextDocument::FindFlags options = 0);
 	virtual bool eventFilter(QObject* obj, QEvent *event);
 
 private slots:
diff --git a/src/MainWindow.ui b/src/MainWindow.ui
index 75635b7..ddd69ee 100644
--- a/src/MainWindow.ui
+++ b/src/MainWindow.ui
@@ -60,7 +60,7 @@
           <property name="lineWidth">
            <number>0</number>
           </property>
-          <layout class="QHBoxLayout" name="horizontalLayout">
+          <layout class="QGridLayout" name="horizontalLayout">
            <property name="leftMargin">
             <number>5</number>
            </property>
@@ -73,37 +73,72 @@
            <property name="bottomMargin">
             <number>0</number>
            </property>
-           <item>
-            <widget class="QLabel" name="label">
+           <property name="verticalSpacing">
+            <number>0</number>
+           </property>
+           <item row="1" column="3" colspan="2">
+            <widget class="QPushButton" name="replaceButton">
              <property name="text">
-              <string>Find</string>
+              <string>Replace</string>
              </property>
             </widget>
            </item>
-           <item>
-            <widget class="QLineEdit" name="findInputField"/>
+           <item row="1" column="5">
+            <widget class="QPushButton" name="replaceAllButton">
+             <property name="text">
+              <string>All</string>
+             </property>
+            </widget>
            </item>
-           <item>
+           <item row="0" column="2">
+            <widget class="QLineEdit" name="findInputField">
+             <property name="placeholderText">
+              <string>Search string</string>
+             </property>
+            </widget>
+           </item>
+           <item row="1" column="2">
+            <widget class="QLineEdit" name="replaceInputField">
+             <property name="placeholderText">
+              <string>Replacement string</string>
+             </property>
+            </widget>
+           </item>
+           <item row="0" column="3">
             <widget class="QPushButton" name="prevButton">
              <property name="text">
               <string>&lt;</string>
              </property>
             </widget>
            </item>
-           <item>
+           <item row="0" column="4">
             <widget class="QPushButton" name="nextButton">
              <property name="text">
               <string>&gt;</string>
              </property>
             </widget>
            </item>
-           <item>
+           <item row="0" column="5">
             <widget class="QPushButton" name="hideFindButton">
              <property name="text">
               <string>Done</string>
              </property>
             </widget>
            </item>
+           <item row="0" column="1">
+            <widget class="QComboBox" name="findTypeComboBox">
+             <item>
+              <property name="text">
+               <string>Find</string>
+              </property>
+             </item>
+             <item>
+              <property name="text">
+               <string>Replace</string>
+              </property>
+             </item>
+            </widget>
+           </item>
           </layout>
          </widget>
         </item>
@@ -263,6 +298,7 @@
     <addaction name="editActionPasteVPR"/>
     <addaction name="separator"/>
     <addaction name="editActionFind"/>
+    <addaction name="editActionFindAndReplace"/>
     <addaction name="editActionFindNext"/>
     <addaction name="editActionFindPrevious"/>
     <addaction name="editActionUseSelectionForFind"/>
@@ -763,6 +799,14 @@
     <string>Ctrl+F</string>
    </property>
   </action>
+  <action name="editActionFindAndReplace">
+   <property name="text">
+    <string>Find and Replace...</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Alt+F</string>
+   </property>
+  </action>
   <action name="editActionFindNext">
    <property name="text">
     <string>Find Next</string>
diff --git a/src/mainwin.cc b/src/mainwin.cc
index 07dff73..2c70102 100644
--- a/src/mainwin.cc
+++ b/src/mainwin.cc
@@ -287,6 +287,7 @@ MainWindow::MainWindow(const QString &filename)
 	connect(this->editActionPreferences, SIGNAL(triggered()), this, SLOT(preferences()));
 	// Edit->Find
 	connect(this->editActionFind, SIGNAL(triggered()), this, SLOT(find()));
+	connect(this->editActionFindAndReplace, SIGNAL(triggered()), this, SLOT(findAndReplace()));
 	connect(this->editActionFindNext, SIGNAL(triggered()), this, SLOT(findNext()));
 	connect(this->editActionFindPrevious, SIGNAL(triggered()), this, SLOT(findPrev()));
 	connect(this->editActionUseSelectionForFind, SIGNAL(triggered()), this, SLOT(useSelectionForFind()));
@@ -379,12 +380,16 @@ MainWindow::MainWindow(const QString &filename)
 					this, SLOT(setSyntaxHighlight(const QString&)));
 	Preferences::inst()->apply();
 
+	connect(this->findTypeComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(selectFindType(int)));
 	connect(this->findInputField, SIGNAL(returnPressed()), this, SLOT(findNext()));
 	find_panel->installEventFilter(this);
 
 	connect(this->prevButton, SIGNAL(clicked()), this, SLOT(findPrev()));
 	connect(this->nextButton, SIGNAL(clicked()), this, SLOT(findNext()));
 	connect(this->hideFindButton, SIGNAL(clicked()), find_panel, SLOT(hide()));
+	connect(this->replaceButton, SIGNAL(clicked()), this, SLOT(replace()));
+	connect(this->replaceAllButton, SIGNAL(clicked()), this, SLOT(replaceAll()));
+	connect(this->replaceInputField, SIGNAL(returnPressed()), this, SLOT(replace()));
 
 	// make sure it looks nice..
 	QSettings settings;
@@ -1106,12 +1111,32 @@ void MainWindow::pasteViewportRotation()
 
 void MainWindow::find()
 {
+	findTypeComboBox->setCurrentIndex(0);
+	replaceInputField->hide();
+	replaceButton->hide();
+	replaceAllButton->hide();
 	find_panel->show();
 	findInputField->setFocus();
 	findInputField->selectAll();
 }
 
-void MainWindow::findOperation(QTextDocument::FindFlags options) {
+void MainWindow::findAndReplace()
+{
+	findTypeComboBox->setCurrentIndex(1);
+	replaceInputField->show();
+	replaceButton->show();
+	replaceAllButton->show();
+	find_panel->show();
+	findInputField->setFocus();
+	findInputField->selectAll();
+}
+
+void MainWindow::selectFindType(int type) {
+	if (type == 0) find();
+	if (type == 1) findAndReplace();
+}
+
+bool MainWindow::findOperation(QTextDocument::FindFlags options) {
 	bool success = editor->find(findInputField->text(), options);
 	if (!success) { // Implement wrap-around search behavior
 		QTextCursor old_cursor = editor->textCursor();
@@ -1122,6 +1147,23 @@ void MainWindow::findOperation(QTextDocument::FindFlags options) {
 		if (!success) {
 			editor->setTextCursor(old_cursor);
 		}
+		return success;
+	}
+	return true;
+}
+
+void MainWindow::replace() {
+	QTextCursor cursor = editor->textCursor();
+	QString selectedText = cursor.selectedText();
+	if (selectedText == findInputField->text()) {
+		cursor.insertText(replaceInputField->text());
+	}
+	findNext();
+}
+
+void MainWindow::replaceAll() {
+	while (findOperation()) {
+		editor->textCursor().insertText(replaceInputField->text());
 	}
 }
 
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