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-rw-r--r--src/Bindings/LuaWindow.cpp185
1 files changed, 185 insertions, 0 deletions
diff --git a/src/Bindings/LuaWindow.cpp b/src/Bindings/LuaWindow.cpp
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+++ b/src/Bindings/LuaWindow.cpp
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+
+// LuaWindow.cpp
+
+// Implements the cLuaWindow class representing a virtual window that plugins may create and open for the player
+
+#include "Globals.h"
+#include "LuaWindow.h"
+#include "../UI/SlotArea.h"
+#include "PluginLua.h"
+#include "../Entities/Player.h"
+#include "lua/src/lauxlib.h" // Needed for LUA_REFNIL
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cLuaWindow:
+
+cLuaWindow::cLuaWindow(cWindow::WindowType a_WindowType, int a_SlotsX, int a_SlotsY, const AString & a_Title) :
+ super(a_WindowType, a_Title),
+ m_Contents(a_SlotsX, a_SlotsY),
+ m_Plugin(NULL),
+ m_LuaRef(LUA_REFNIL),
+ m_OnClosingFnRef(LUA_REFNIL),
+ m_OnSlotChangedFnRef(LUA_REFNIL)
+{
+ m_Contents.AddListener(*this);
+ m_SlotAreas.push_back(new cSlotAreaItemGrid(m_Contents, *this));
+
+ // If appropriate, add an Armor slot area:
+ switch (a_WindowType)
+ {
+ case cWindow::wtInventory:
+ case cWindow::wtWorkbench:
+ {
+ m_SlotAreas.push_back(new cSlotAreaArmor(*this));
+ break;
+ }
+ }
+ m_SlotAreas.push_back(new cSlotAreaInventory(*this));
+ m_SlotAreas.push_back(new cSlotAreaHotBar(*this));
+}
+
+
+
+
+
+cLuaWindow::~cLuaWindow()
+{
+ m_Contents.RemoveListener(*this);
+
+ // Must delete slot areas now, because they are referencing this->m_Contents and would try to access it in cWindow's
+ // destructor, when the member is already gone.
+ for (cSlotAreas::iterator itr = m_SlotAreas.begin(), end = m_SlotAreas.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ }
+ m_SlotAreas.clear();
+
+ ASSERT(m_OpenedBy.empty());
+}
+
+
+
+
+
+void cLuaWindow::SetLuaRef(cPluginLua * a_Plugin, int a_LuaRef)
+{
+ // Either m_Plugin is not set or equal to the passed plugin; only one plugin can use one cLuaWindow object
+ ASSERT((m_Plugin == NULL) || (m_Plugin == a_Plugin));
+ ASSERT(m_LuaRef == LUA_REFNIL);
+ m_Plugin = a_Plugin;
+ m_LuaRef = a_LuaRef;
+}
+
+
+
+
+
+bool cLuaWindow::IsLuaReferenced(void) const
+{
+ return ((m_Plugin != NULL) && (m_LuaRef != LUA_REFNIL));
+}
+
+
+
+
+
+void cLuaWindow::SetOnClosing(cPluginLua * a_Plugin, int a_FnRef)
+{
+ // Either m_Plugin is not set or equal to the passed plugin; only one plugin can use one cLuaWindow object
+ ASSERT((m_Plugin == NULL) || (m_Plugin == a_Plugin));
+
+ // If there already was a function, unreference it first
+ if (m_OnClosingFnRef != LUA_REFNIL)
+ {
+ m_Plugin->Unreference(m_OnClosingFnRef);
+ }
+
+ // Store the new reference
+ m_Plugin = a_Plugin;
+ m_OnClosingFnRef = a_FnRef;
+}
+
+
+
+
+
+void cLuaWindow::SetOnSlotChanged(cPluginLua * a_Plugin, int a_FnRef)
+{
+ // Either m_Plugin is not set or equal to the passed plugin; only one plugin can use one cLuaWindow object
+ ASSERT((m_Plugin == NULL) || (m_Plugin == a_Plugin));
+
+ // If there already was a function, unreference it first
+ if (m_OnSlotChangedFnRef != LUA_REFNIL)
+ {
+ m_Plugin->Unreference(m_OnSlotChangedFnRef);
+ }
+
+ // Store the new reference
+ m_Plugin = a_Plugin;
+ m_OnSlotChangedFnRef = a_FnRef;
+}
+
+
+
+
+
+bool cLuaWindow::ClosedByPlayer(cPlayer & a_Player, bool a_CanRefuse)
+{
+ // First notify the plugin through the registered callback:
+ if (m_OnClosingFnRef != LUA_REFNIL)
+ {
+ ASSERT(m_Plugin != NULL);
+ if (m_Plugin->CallbackWindowClosing(m_OnClosingFnRef, *this, a_Player, a_CanRefuse))
+ {
+ // The callback disagrees (the higher levels check the CanRefuse flag compliance)
+ return false;
+ }
+ }
+
+ return super::ClosedByPlayer(a_Player, a_CanRefuse);
+}
+
+
+
+
+
+void cLuaWindow::Destroy(void)
+{
+ super::Destroy();
+
+ if ((m_LuaRef != LUA_REFNIL) && (m_Plugin != NULL))
+ {
+ // The object is referenced by Lua, un-reference it
+ m_Plugin->Unreference(m_LuaRef);
+ }
+
+ // Lua will take care of this object, it will garbage-collect it, so we *must not* delete it!
+ m_IsDestroyed = false;
+}
+
+
+
+
+
+void cLuaWindow::OnSlotChanged(cItemGrid * a_ItemGrid, int a_SlotNum)
+{
+ if (a_ItemGrid != &m_Contents)
+ {
+ ASSERT(!"Invalid ItemGrid in callback");
+ return;
+ }
+
+ // If an OnSlotChanged callback has been registered, call it:
+ if (m_OnSlotChangedFnRef != LUA_REFNIL)
+ {
+ m_Plugin->CallbackWindowSlotChanged(m_OnSlotChangedFnRef, *this, a_SlotNum);
+ }
+}
+
+
+
+