cpp/openttd-patchpack/source Changeset - r11027:07197078609a

Changeset - r11027:07197078609a

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rubidium - 16 years ago 2009-02-06 00:51:11
rubidium@openttd.org

(svn r15367) -Add: framework for filtering GUILists (Roujin)

1 file changed with 139 insertions and 8 deletions:

src/sortlist_type.h

139

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src/sortlist_type.h

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@@ @@ -18,7 +18,8 @@ enum SortListFlags { @@
 	VL_RESORT     = 1 << 1, ///< instruct the code to resort the list in the next loop
 	VL_REBUILD    = 1 << 2, ///< rebuild the sort list
 	VL_FIRST_SORT = 1 << 3, ///< sort with qsort first
 	VL_END        = 1 << 4,
 	VL_FILTER     = 1 << 4, ///< filter disabled/enabled
 	VL_END        = 1 << 5,
 };
 DECLARE_ENUM_AS_BIT_SET(SortListFlags);
@@ @@ -26,16 +27,23 @@ struct Listing { @@
 	bool order;    ///< Ascending/descending
 	byte criteria; ///< Sorting criteria
 };
 struct Filtering {
 	bool state;    ///< Filter on/off
 	byte criteria; ///< Filtering criteria
 };
 template <typename T>
+template <typename T, typename F = char>
 class GUIList : public SmallVector<T, 32> {
 public:
 	typedef int CDECL SortFunction(const T*, const T*);
 	typedef bool CDECL FilterFunction(const T*, const F*);
 protected:
 	SortFunction * const *func_list; ///< The sort criteria functions
 	SortFunction * const *sort_func_list;     ///< the sort criteria functions
 	FilterFunction * const *filter_func_list; ///< the filter criteria functions
 	SortListFlags flags;             ///< used to control sorting/resorting/etc.
 	uint8 sort_type;                 ///< what criteria to sort on
 	uint8 filter_type;                        ///< what criteria to filter on
 	uint16 resort_timer;             ///< resort list after a given amount of ticks if set
 	/**
@@ @@ -59,9 +67,11 @@ protected: @@
 public:
 	GUIList() :
 		func_list(NULL),
 		sort_func_list(NULL),
 		filter_func_list(NULL),
 		flags(VL_FIRST_SORT),
 		sort_type(0),
 		filter_type(0),
 		resort_timer(1)
 	{};
@@ @@ -105,7 +115,7 @@ public: @@
 	/**
 	 * Import sort conditions
+	 *
-	 * @param l The sport conditions we want to use
+	 * @param l The sort conditions we want to use
 	 */
 	void SetListing(Listing l)
+	{
@@ @@ -120,6 +130,57 @@ public: @@
+	}
 	/**
 	 * Get the filtertype of the list
+	 *
 	 * @return The current filtertype
 	 */
 	uint8 FilterType() const
+	{
 		return this->filter_type;
+	}
 	/**
 	 * Set the filtertype of the list
+	 *
 	 * @param n_type the new filter type
 	 */
 	void SetFilterType(uint8 n_type)
+	{
 		if (this->filter_type != n_type) {
 			this->filter_type = n_type;
+		}
+	}
 	/**
 	 * Export current filter conditions
+	 *
 	 * @return the current filter conditions
 	 */
 	Filtering GetFiltering() const
+	{
 		Filtering f;
 		f.state = HASBITS(this->flags, VL_FILTER);
 		f.criteria = this->filter_type;
 		return f;
+	}
 	/**
 	 * Import filter conditions
+	 *
 	 * @param f The filter conditions we want to use
 	 */
 	void SetFiltering(Filtering f)
+	{
 		if (f.state) {
 			SETBITS(this->flags, VL_FILTER);
 		} else {
 			CLRBITS(this->flags, VL_FILTER);
+		}
 		this->filter_type = f.criteria;
+	}
 	/**
 	 * Check if a resort is needed next loop
 	 *  If used the resort timer will decrease every call
 	 *  till 0. If 0 reached the resort bit will be set and
@@ @@ -209,7 +270,7 @@ public: @@
 	 */
 	void SetSortFuncs(SortFunction * const *n_funcs)
+	{
-		this->func_list = n_funcs;
+		this->sort_func_list = n_funcs;
+	}
 	/**
@@ @@ -220,8 +281,78 @@ public: @@
 	 */
 	bool Sort()
+	{
 		assert(this->func_list != NULL);
 		return this->Sort(this->func_list[this->sort_type]);
 		assert(this->sort_func_list != NULL);
 		return this->Sort(this->sort_func_list[this->sort_type]);
+	}
 	/**
 	 * Check if the filter is enabled
+	 *
 	 * @return true if the filter is enabled
 	 */
 	bool IsFilterEnabled() const
+	{
 		return HASBITS(this->flags, VL_FILTER);
+	}
 	/**
 	 * Enable or disable the filter
+	 *
 	 * @param state If filtering should be enabled or disabled
 	 */
 	void SetFilterState(bool state)
+	{
 		if (state) {
 			SETBITS(this->flags, VL_FILTER);
 		} else {
 			CLRBITS(this->flags, VL_FILTER);
+		}
+	}
 	/**
 	 * Filter the list.
+	 *
 	 * @param decide The function to decide about an item
 	 * @param filter_data The data for filter on
 	 * @return true if the list has been altered by filtering
 	 * */
 	bool Filter(FilterFunction *decide, const F *filter_data)
+	{
 		/* Do not filter if the filter bit is not set */
 		if (!HASBITS(this->flags, VL_FILTER)) return false;
 		for (uint iter = 0; iter < this->items;) {
 			T *item = &this->data[iter];
 			if (!decide(item, filter_data)) {
 				this->Erase(item);
 			} else {
 				iter++;
+			}
+		}
 		return true;
+	}
 	/**
 	 * Hand the array of filter function pointers to the sort list
+	 *
 	 * @param n_funcs The pointer to the first filter func
 	 */
 	void SetFilterFuncs(FilterFunction * const *n_funcs)
+	{
 		this->filter_func_list = n_funcs;
+	}
 	/**
 	 * Filter the data with the currently selected filter.
+	 *
 	 * @param filter_data The data for filer on
 	 * @return true if the list has been altered by filtering
 	 */
 	bool Filter(const F *filter_data)
+	{
 		if (this->filter_func_list == NULL) return false;
 		return this->Filter(this->filter_func_list[this->filter_type], filter_data);
+	}
 	/**

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