From e15445f0f8f95f1547798b886b002146d282c006 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Wed, 25 Jan 2012 02:35:39 +0300
Subject: Save camera mode before speaking with npc and restore after.

---
 src/gui/npcdialog.cpp       | 39 +++++++++++++++++++++++++++++++++++++--
 src/gui/npcdialog.h         |  7 +++++++
 src/gui/viewport.h          |  6 ++++++
 src/net/tmwa/npchandler.cpp |  7 +++++++
 4 files changed, 57 insertions(+), 2 deletions(-)

diff --git a/src/gui/npcdialog.cpp b/src/gui/npcdialog.cpp
index 265748b6f..eadd99c21 100644
--- a/src/gui/npcdialog.cpp
+++ b/src/gui/npcdialog.cpp
@@ -26,6 +26,7 @@
 #include "client.h"
 
 #include "gui/setup.h"
+#include "gui/viewport.h"
 
 #include "gui/widgets/browserbox.h"
 #include "gui/widgets/button.h"
@@ -62,7 +63,10 @@ NpcDialog::NpcDialog(int npcId) :
     mDefaultInt(0),
     mInputState(NPC_INPUT_NONE),
     mActionState(NPC_ACTION_WAIT),
-    mLastNextTime(0)
+    mLastNextTime(0),
+    mCameraMode(-1),
+    mCameraX(0),
+    mCameraY(0)
 {
     // Basic Window Setup
     setWindowName("NpcText");
@@ -301,6 +305,7 @@ void NpcDialog::nextDialog()
 
 void NpcDialog::closeDialog()
 {
+    restoreCamera();
     Net::getNpcHandler()->closeDialog(mNpcId);
 }
 
@@ -504,4 +509,34 @@ void NpcDialog::buildLayout()
     redraw();
 
     mScrollArea->setVerticalScrollAmount(mScrollArea->getVerticalMaxScroll());
-}
\ No newline at end of file
+}
+
+void NpcDialog::saveCamera()
+{
+    if (!viewport || mCameraMode >= 0)
+        return;
+
+    mCameraMode = viewport->getCameraMode();
+    mCameraX = viewport->getCameraRelativeX();
+    mCameraY = viewport->getCameraRelativeY();
+}
+
+void NpcDialog::restoreCamera()
+{
+    if (!viewport || mCameraMode == -1)
+        return;
+
+    if (!mCameraMode)
+    {
+        if (viewport->getCameraMode() != mCameraMode)
+            viewport->toggleCameraMode();
+    }
+    else
+    {
+        if (viewport->getCameraMode() != mCameraMode)
+            viewport->toggleCameraMode();
+        viewport->setCameraRelativeX(mCameraX);
+        viewport->setCameraRelativeY(mCameraY);
+    }
+    mCameraMode = -1;
+}
diff --git a/src/gui/npcdialog.h b/src/gui/npcdialog.h
index e76897499..4d919a3f2 100644
--- a/src/gui/npcdialog.h
+++ b/src/gui/npcdialog.h
@@ -172,6 +172,10 @@ class NpcDialog : public Window, public gcn::ActionListener,
          */
         static void destroyAll();
 
+        void saveCamera();
+
+        void restoreCamera();
+
     private:
         typedef std::list<NpcDialog*> DialogList;
         static DialogList instances;
@@ -230,6 +234,9 @@ class NpcDialog : public Window, public gcn::ActionListener,
         NpcInputState mInputState;
         NpcActionState mActionState;
         int mLastNextTime;
+        int mCameraMode;
+        int mCameraX;
+        int mCameraY;
 };
 
 #endif // NPCDIALOG_H
diff --git a/src/gui/viewport.h b/src/gui/viewport.h
index 0f56e9426..4ed80ed32 100644
--- a/src/gui/viewport.h
+++ b/src/gui/viewport.h
@@ -248,6 +248,12 @@ class Viewport : public WindowContainer, public gcn::MouseListener,
         int getCameraRelativeY()
         { return mCameraRelativeY; }
 
+        void setCameraRelativeX(int n)
+        { mCameraRelativeX = n; }
+
+        void setCameraRelativeY(int n)
+        { mCameraRelativeY = n; }
+
         bool isPopupMenuVisible();
 
         void moveCameraToActor(int actorId, int x = 0, int y = 0);
diff --git a/src/net/tmwa/npchandler.cpp b/src/net/tmwa/npchandler.cpp
index c395eb1b8..eed10ab7c 100644
--- a/src/net/tmwa/npchandler.cpp
+++ b/src/net/tmwa/npchandler.cpp
@@ -131,6 +131,8 @@ void NpcHandler::closeDialog(int npcId)
     {
         if ((*it).second.dialog)
             (*it).second.dialog->close();
+        if ((*it).second.dialog == mDialog)
+            mDialog = nullptr;
         mNpcDialogs.erase(it);
     }
 }
@@ -226,6 +228,7 @@ int NpcHandler::getNpc(Net::MessageIn &msg, bool haveLength)
         else
         {
             mDialog = new NpcDialog(npcId);
+            mDialog->saveCamera();
             if (player_node)
                 player_node->stopWalking(false);
             Wrapper wrap;
@@ -235,7 +238,11 @@ int NpcHandler::getNpc(Net::MessageIn &msg, bool haveLength)
     }
     else
     {
+        if (mDialog && mDialog != diag->second.dialog)
+            mDialog->restoreCamera();
         mDialog = diag->second.dialog;
+        if (mDialog)
+            mDialog->saveCamera();
     }
     return npcId;
 }
-- 
cgit v1.2.3-70-g09d2