From cf3515a8989bb3480e043c3ce6c668ca535c2331 Mon Sep 17 00:00:00 2001
From: scrawl <scrawl@baseoftrash.de>
Date: Thu, 22 Mar 2012 21:27:21 +0100
Subject: [PATCH] it is now possible to drag the minimap with the mouse

---
 apps/openmw/mwgui/layouts.hpp            | 44 ++++++++++++++++++++++--
 files/mygui/openmw_map_window_layout.xml |  4 ++-
 2 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/apps/openmw/mwgui/layouts.hpp b/apps/openmw/mwgui/layouts.hpp
index 13f80badc9..6c66bb51fd 100644
--- a/apps/openmw/mwgui/layouts.hpp
+++ b/apps/openmw/mwgui/layouts.hpp
@@ -73,6 +73,15 @@ namespace MWGui
       setCellName("No Cell Loaded");
 
       getWidget(mMap, "Map");
+
+      MyGUI::Button* button;
+      getWidget(button, "WorldButton");
+      button->eventMouseButtonClick += MyGUI::newDelegate(this, &MapWindow::onWorldButtonClicked);
+
+      MyGUI::Button* eventbox;
+      getWidget(eventbox, "EventBox");
+      eventbox->eventMouseDrag += MyGUI::newDelegate(this, &MapWindow::onMouseDrag);
+      eventbox->eventMouseButtonPressed += MyGUI::newDelegate(this, &MapWindow::onDragStart);
     }
 
     void setCellName(const std::string& cellName)
@@ -88,6 +97,7 @@ namespace MWGui
 
     void setActiveCell(const int x, const int y, bool interior=false)
     {
+      if (x==mCurX && y==mCurY && mInterior==interior) return; // don't do anything if we're still in the same cell
       for (int mx=0; mx<3; ++mx)
       {
         for (int my=0; my<3; ++my)
@@ -97,15 +107,45 @@ namespace MWGui
           
           std::string image = mPrefix+"_"+ boost::lexical_cast<std::string>(x + (mx-1)) + "_"
                                         + boost::lexical_cast<std::string>(y + (interior ? (my-1) : -1*(my-1)));
-          setImage(name, image);
-          setImage(name+"_fog", image+"_fog");
+
+          if (MyGUI::RenderManager::getInstance().getTexture(image) != 0)
+            setImage(name, image);
+          if (MyGUI::RenderManager::getInstance().getTexture(image+"_fog") != 0)
+            setImage(name+"_fog", image+"_fog");
         }
       }
+      mInterior = interior;
+      mCurX = x;
+      mCurY = y;
+    }
+
+    void onDragStart(MyGUI::Widget* _sender, int _left, int _top, MyGUI::MouseButton _id)
+    {
+      if (_id!=MyGUI::MouseButton::Left) return;
+      mLastDragPos = MyGUI::IntPoint(_left, _top);
+    }
+
+    void onMouseDrag(MyGUI::Widget* _sender, int _left, int _top, MyGUI::MouseButton _id)
+    {
+      if (_id!=MyGUI::MouseButton::Left) return;
+
+      MyGUI::IntPoint diff = MyGUI::IntPoint(_left, _top) - mLastDragPos;
+      mMap->setViewOffset( mMap->getViewOffset() + diff );
+
+      mLastDragPos = MyGUI::IntPoint(_left, _top);
+    }
+
+    void onWorldButtonClicked(MyGUI::Widget* _sender)
+    {
+      /// \todo
     }
 
   private:
     std::string mPrefix;
     MyGUI::ScrollView* mMap;
+    MyGUI::IntPoint mLastDragPos;
+    int mCurX, mCurY;
+    bool mInterior;
   };
 
   class MainMenu : public OEngine::GUI::Layout
diff --git a/files/mygui/openmw_map_window_layout.xml b/files/mygui/openmw_map_window_layout.xml
index 1bb304455b..90ad70edb6 100644
--- a/files/mygui/openmw_map_window_layout.xml
+++ b/files/mygui/openmw_map_window_layout.xml
@@ -4,7 +4,7 @@
     <Widget type="Window" skin="MW_Window" layer="Windows" position="0 0 300 300" name="_Main">
         <Widget type="ScrollView" skin="MW_MapView" position="0 0 284 264" align="ALIGN_STRETCH" name="Map">
             <Property key="CanvasSize" value="1536 1536"/>
-
+            
             <!-- 3x3 maps, 1024x1024 each, but we will downsample to 512 to antialias them -->
             <Widget type="ImageBox" skin="ImageBox" position="0 0 512 512" align="ALIGN_TOP ALIGN_LEFT" name="Map_0_0">
                 <Widget type="ImageBox" skin="ImageBox" position="0 0 512 512" align="ALIGN_TOP ALIGN_LEFT" name="Map_0_0_fog"/>
@@ -44,6 +44,8 @@
 
                 <!-- positioned and rotated in code -->
             <Widget type="ImageBox" skin="ImageBox" position="0 0 32 32" align="ALIGN_TOP ALIGN_LEFT" name="Compass"/>
+
+            <Widget type="Button" skin="" position="0 0 1536 1536" name="EventBox" align="ALIGN_STRETCH"/>
         </Widget>
         <Widget type="Button" skin="MW_Button" position="213 233 61 22" align="ALIGN_BOTTOM ALIGN_RIGHT" name="WorldButton"/>
     </Widget>