Editor: Implemented simple Find functionality

Conflicts:
	src/MainWindow.h

3 files changed, 213 insertions, 9 deletions

diff --git a/src/MainWindow.h b/src/MainWindow.h
index 4948d46..a908be0 100644
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -117,6 +117,15 @@ private slots:
 
 private slots:
 	void actionRenderCSG();
+	void find();
+	void findNext();
+	void findPrev();
+	void useSelectionForFind();
+protected:
+	void findOperation(QTextDocument::FindFlags options = 0);
+	virtual bool eventFilter(QObject* obj, QEvent *event);
+
+private slots:
 	void csgRender();
 	void csgReloadRender();
 #ifdef ENABLE_CGAL
diff --git a/src/MainWindow.ui b/src/MainWindow.ui
index 4cb043f..0b03e56 100644
--- a/src/MainWindow.ui
+++ b/src/MainWindow.ui
@@ -15,7 +15,16 @@
   </property>
   <widget class="QWidget" name="centralwidget">
    <layout class="QVBoxLayout" name="verticalLayout_2">
-    <property name="margin">
+    <property name="leftMargin">
+     <number>0</number>
+    </property>
+    <property name="topMargin">
+     <number>0</number>
+    </property>
+    <property name="rightMargin">
+     <number>0</number>
+    </property>
+    <property name="bottomMargin">
      <number>0</number>
     </property>
     <item>
@@ -23,13 +32,86 @@
       <property name="orientation">
        <enum>Qt::Horizontal</enum>
       </property>
-      <widget class="Editor" name="editor" native="true">
-       <property name="font">
-        <font>
-         <family>Monaco</family>
-         <pointsize>8</pointsize>
-        </font>
-       </property>
+      <widget class="QWidget" name="editorlayoutwidget">
+       <layout class="QVBoxLayout" name="verticalLayout_2">
+        <item>
+         <widget class="QFrame" name="find_panel">
+          <property name="enabled">
+           <bool>true</bool>
+          </property>
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="frameShape">
+           <enum>QFrame::NoFrame</enum>
+          </property>
+          <property name="frameShadow">
+           <enum>QFrame::Raised</enum>
+          </property>
+          <property name="lineWidth">
+           <number>0</number>
+          </property>
+          <layout class="QHBoxLayout" name="horizontalLayout">
+           <property name="leftMargin">
+            <number>5</number>
+           </property>
+           <property name="topMargin">
+            <number>0</number>
+           </property>
+           <property name="rightMargin">
+            <number>5</number>
+           </property>
+           <property name="bottomMargin">
+            <number>0</number>
+           </property>
+           <item>
+            <widget class="QLabel" name="label">
+             <property name="text">
+              <string>Find</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QLineEdit" name="findInputField"/>
+           </item>
+           <item>
+            <widget class="QPushButton" name="prevButton">
+             <property name="text">
+              <string>&lt;</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QPushButton" name="nextButton">
+             <property name="text">
+              <string>&gt;</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QPushButton" name="hideFindButton">
+             <property name="text">
+              <string>Done</string>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </widget>
+        </item>
+        <item>
+         <widget class="Editor" name="editor" native="true">
+          <property name="font">
+           <font>
+            <family>Monaco</family>
+            <pointsize>8</pointsize>
+           </font>
+          </property>
+         </widget>
+        </item>
+       </layout>
       </widget>
       <widget class="QWidget" name="layoutWidget">
        <layout class="QVBoxLayout" name="verticalLayout">
@@ -61,7 +143,16 @@
            <number>0</number>
           </property>
           <layout class="QHBoxLayout" name="horizontalLayout">
-           <property name="margin">
+           <property name="leftMargin">
+            <number>0</number>
+           </property>
+           <property name="topMargin">
+            <number>0</number>
+           </property>
+           <property name="rightMargin">
+            <number>0</number>
+           </property>
+           <property name="bottomMargin">
             <number>0</number>
            </property>
            <item>
@@ -165,6 +256,11 @@
     <addaction name="editActionPasteVPT"/>
     <addaction name="editActionPasteVPR"/>
     <addaction name="separator"/>
+    <addaction name="editActionFind"/>
+    <addaction name="editActionFindNext"/>
+    <addaction name="editActionFindPrevious"/>
+    <addaction name="editActionUseSelectionForFind"/>
+    <addaction name="separator"/>
     <addaction name="editActionZoomIn"/>
     <addaction name="editActionZoomOut"/>
     <addaction name="editActionPreferences"/>
@@ -653,6 +749,38 @@
     <string>Preferences</string>
    </property>
   </action>
+  <action name="editActionFind">
+   <property name="text">
+    <string>Find...</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+F</string>
+   </property>
+  </action>
+  <action name="editActionFindNext">
+   <property name="text">
+    <string>Find Next</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+G</string>
+   </property>
+  </action>
+  <action name="editActionFindPrevious">
+   <property name="text">
+    <string>Find Previous</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Shift+G</string>
+   </property>
+  </action>
+  <action name="editActionUseSelectionForFind">
+   <property name="text">
+    <string>Use Selection for Find</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+E</string>
+   </property>
+  </action>
   <action name="designActionFlushCaches">
    <property name="text">
     <string>Flush Caches</string>
diff --git a/src/mainwin.cc b/src/mainwin.cc
index c2a7b7e..07dff73 100644
--- a/src/mainwin.cc
+++ b/src/mainwin.cc
@@ -212,6 +212,7 @@ MainWindow::MainWindow(const QString &filename)
 	connect(this->e_fps, SIGNAL(textChanged(QString)), this, SLOT(updatedFps()));
 
 	animate_panel->hide();
+	find_panel->hide();
 
 	// Application menu
 #ifdef DEBUG
@@ -284,6 +285,11 @@ MainWindow::MainWindow(const QString &filename)
 	connect(this->editActionZoomOut, SIGNAL(triggered()), editor, SLOT(zoomOut()));
 	connect(this->editActionHide, SIGNAL(triggered()), this, SLOT(hideEditor()));
 	connect(this->editActionPreferences, SIGNAL(triggered()), this, SLOT(preferences()));
+	// Edit->Find
+	connect(this->editActionFind, SIGNAL(triggered()), this, SLOT(find()));
+	connect(this->editActionFindNext, SIGNAL(triggered()), this, SLOT(findNext()));
+	connect(this->editActionFindPrevious, SIGNAL(triggered()), this, SLOT(findPrev()));
+	connect(this->editActionUseSelectionForFind, SIGNAL(triggered()), this, SLOT(useSelectionForFind()));
 
 	// Design menu
 	connect(this->designActionAutoReload, SIGNAL(toggled(bool)), this, SLOT(autoReloadSet(bool)));
@@ -373,6 +379,13 @@ MainWindow::MainWindow(const QString &filename)
 					this, SLOT(setSyntaxHighlight(const QString&)));
 	Preferences::inst()->apply();
 
+	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()));
+
 	// make sure it looks nice..
 	QSettings settings;
 	resize(settings.value("window/size", QSize(800, 600)).toSize());
@@ -1091,6 +1104,60 @@ void MainWindow::pasteViewportRotation()
 	cursor.insertText(txt);
 }
 
+void MainWindow::find()
+{
+	find_panel->show();
+	findInputField->setFocus();
+	findInputField->selectAll();
+}
+
+void MainWindow::findOperation(QTextDocument::FindFlags options) {
+	bool success = editor->find(findInputField->text(), options);
+	if (!success) { // Implement wrap-around search behavior
+		QTextCursor old_cursor = editor->textCursor();
+		QTextCursor tmp_cursor = old_cursor;
+		tmp_cursor.movePosition((options & QTextDocument::FindBackward) ? QTextCursor::End : QTextCursor::Start);
+		editor->setTextCursor(tmp_cursor);
+		bool success = editor->find(findInputField->text(), options);
+		if (!success) {
+			editor->setTextCursor(old_cursor);
+		}
+	}
+}
+
+void MainWindow::findNext()
+{
+	findOperation();
+}
+
+void MainWindow::findPrev()
+{
+	findOperation(QTextDocument::FindBackward);
+}
+
+void MainWindow::useSelectionForFind()
+{
+	findInputField->setText(editor->textCursor().selectedText());
+}
+
+bool MainWindow::eventFilter(QObject* obj, QEvent *event)
+{
+    if (obj == find_panel)
+    {
+        if (event->type() == QEvent::KeyPress)
+        {
+            QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
+            if (keyEvent->key() == Qt::Key_Escape)
+            {
+				find_panel->hide();
+				return true;
+            }
+        }
+        return false;
+    }
+    return QMainWindow::eventFilter(obj, event);
+}
+
 void MainWindow::updateTemporalVariables()
 {
 	this->top_ctx.set_variable("$t", Value(this->e_tval->text().toDouble()));