From 921c298c9cf066f4eca61045aa773a57444939bd Mon Sep 17 00:00:00 2001
From: Tim Felgentreff <timfelgentreff@gmail.com>
Date: Thu, 23 May 2013 01:23:25 +0200
Subject: [PATCH] add a button check to disable a button when a unit is
available
---
src/include/interface.h | 2 ++
src/ui/button_checks.cpp | 13 +++++++++++++
src/ui/script_ui.cpp | 2 ++
3 files changed, 17 insertions(+)
diff --git a/src/include/interface.h b/src/include/interface.h
index f8840e58d..c3da5c05d 100644
--- a/src/include/interface.h
+++ b/src/include/interface.h
@@ -405,6 +405,8 @@ extern bool ButtonCheckUnitVariable(const CUnit &unit, const ButtonAction &butto
extern bool ButtonCheckUnitsOr(const CUnit &unit, const ButtonAction &button);
/// Check if allowed units exists
extern bool ButtonCheckUnitsAnd(const CUnit &unit, const ButtonAction &button);
+/// Check if units don't exist
+extern bool ButtonCheckUnitsNot(const CUnit &unit, const ButtonAction &button);
/// Check if have network play
extern bool ButtonCheckNetwork(const CUnit &unit, const ButtonAction &button);
/// Check if don't have network play
diff --git a/src/ui/button_checks.cpp b/src/ui/button_checks.cpp
index cdcc5ad7c..5601ed899 100644
--- a/src/ui/button_checks.cpp
+++ b/src/ui/button_checks.cpp
@@ -202,6 +202,19 @@ bool ButtonCheckUnitsAnd(const CUnit &unit, const ButtonAction &button)
return true;
}
+/**
+** Check for button enabled, if no unit is available.
+**
+** @param unit Pointer to unit for button.
+** @param button Pointer to button to check/enable.
+**
+** @return True if enabled.
+*/
+bool ButtonCheckUnitsNot(const CUnit &unit, const ButtonAction &button)
+{
+ return !ButtonCheckUnitsAnd(unit, button);
+}
+
/**
** Check if network play is enabled.
**
diff --git a/src/ui/script_ui.cpp b/src/ui/script_ui.cpp
index e27ae109b..88527bec4 100644
--- a/src/ui/script_ui.cpp
+++ b/src/ui/script_ui.cpp
@@ -968,6 +968,8 @@ static int CclDefineButton(lua_State *l)
ba.Allowed = ButtonCheckUnitsOr;
} else if (!strcmp(value, "check-units-and")) {
ba.Allowed = ButtonCheckUnitsAnd;
+ } else if (!strcmp(value, "check-units-not")) {
+ ba.Allowed = ButtonCheckUnitsNot;
} else if (!strcmp(value, "check-network")) {
ba.Allowed = ButtonCheckNetwork;
} else if (!strcmp(value, "check-no-network")) {