# HG changeset patch
# User unc0rr
# Date 1292870710 -10800
# Node ID 4ba4f021070f2a046af9814ee44e6fd8cf094fd9
# Parent  66bc6e45be83c7fb5afba2ab0bf7029a5fe3ae4d
 - Allow user to use undo, to clear, save and load drawn maps
 - Fix a couple of bugs related to those operations

diff -r 66bc6e45be83 -r 4ba4f021070f QTfrontend/drawmapwidget.cpp
--- a/QTfrontend/drawmapwidget.cpp	Mon Dec 20 20:55:45 2010 +0300
+++ b/QTfrontend/drawmapwidget.cpp	Mon Dec 20 21:45:10 2010 +0300
@@ -1,4 +1,5 @@
 #include <QFile>
+#include <QMessageBox>
 
 #include "drawmapwidget.h"
 
@@ -31,6 +32,7 @@
 void DrawMapWidget::setScene(DrawMapScene * scene)
 {
     ui->graphicsView->setScene(scene);
+    m_scene = scene;
 }
 
 void DrawMapWidget::resizeEvent(QResizeEvent * event)
@@ -55,15 +57,31 @@
 
 void DrawMapWidget::clear()
 {
-    if(m_scene) m_scene->clear();
+    if(m_scene) m_scene->clearMap();
 }
 
 void DrawMapWidget::save(const QString & fileName)
 {
-    Q_UNUSED(fileName);
+    if(m_scene)
+    {
+        QFile file(fileName);
+
+        if(!file.open(QIODevice::WriteOnly))
+            QMessageBox::warning(this, tr("File error"), tr("Cannot open file '%1' for writing").arg(fileName));
+        else
+            file.write(qCompress(m_scene->encode()).toBase64());
+    }
 }
 
 void DrawMapWidget::load(const QString & fileName)
 {
-    Q_UNUSED(fileName);
+    if(m_scene)
+    {
+        QFile f(fileName);
+
+        if(!f.open(QIODevice::ReadOnly))
+            QMessageBox::warning(this, tr("File error"), tr("Cannot read file '%1'").arg(fileName));
+        else
+            m_scene->decode(qUncompress(QByteArray::fromBase64(f.readAll())));
+    }
 }
diff -r 66bc6e45be83 -r 4ba4f021070f QTfrontend/pages.cpp
--- a/QTfrontend/pages.cpp	Mon Dec 20 20:55:45 2010 +0300
+++ b/QTfrontend/pages.cpp	Mon Dec 20 21:45:10 2010 +0300
@@ -40,6 +40,7 @@
 #include <QDataWidgetMapper>
 #include <QTime>
 #include <QSlider>
+#include <QFileDialog>
 
 #include "ammoSchemeModel.h"
 #include "pages.h"
@@ -2017,8 +2018,34 @@
 {
     QGridLayout * pageLayout = new QGridLayout(this);
 
-    BtnBack = addButton(":/res/Exit.png", pageLayout, 1, 0, true);
+    QPushButton * pbUndo = addButton(tr("Undo"), pageLayout, 0, 0);
+    QPushButton * pbClear = addButton(tr("Clear"), pageLayout, 1, 0);
+    QPushButton * pbLoad = addButton(tr("Load"), pageLayout, 2, 0);
+    QPushButton * pbSave = addButton(tr("Save"), pageLayout, 3, 0);
+
+    BtnBack = addButton(":/res/Exit.png", pageLayout, 5, 0, true);
 
     drawMapWidget = new DrawMapWidget(this);
-    pageLayout->addWidget(drawMapWidget, 0, 0, 1, 2);
+    pageLayout->addWidget(drawMapWidget, 0, 1, 5, 1);
+
+    connect(pbUndo, SIGNAL(clicked()), drawMapWidget, SLOT(undo()));
+    connect(pbClear, SIGNAL(clicked()), drawMapWidget, SLOT(clear()));
+    connect(pbLoad, SIGNAL(clicked()), this, SLOT(load()));
+    connect(pbSave, SIGNAL(clicked()), this, SLOT(save()));
 }
+
+void PageDrawMap::load()
+{
+    QString fileName = QFileDialog::getOpenFileName(this, tr("Load drawn map"), ".", tr("Drawn Maps (*.hwmap);;All files (*.*)"));
+
+    if(!fileName.isEmpty())
+        drawMapWidget->load(fileName);
+}
+
+void PageDrawMap::save()
+{
+    QString fileName = QFileDialog::getSaveFileName(this, tr("Save drawn map"), ".", tr("Drawn Maps (*.hwmap);;All files (*.*)"));
+
+    if(!fileName.isEmpty())
+        drawMapWidget->save(fileName);
+}
diff -r 66bc6e45be83 -r 4ba4f021070f QTfrontend/pages.h
--- a/QTfrontend/pages.h	Mon Dec 20 20:55:45 2010 +0300
+++ b/QTfrontend/pages.h	Mon Dec 20 21:45:10 2010 +0300
@@ -587,6 +587,10 @@
     QPushButton * BtnBack;
 
     DrawMapWidget * drawMapWidget;
+
+private slots:
+    void load();
+    void save();
 };
 
 #endif // PAGES_H