Add efacf056cd

dockerdoom/trunk/textscreen/txt_spinctrl.h

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+// Emacs style mode select   -*- C++ -*- 
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 2006 Simon Howard
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+
+#ifndef TXT_SPINCONTROL_H
+#define TXT_SPINCONTROL_H
+
+/**
+ * @file txt_spinctrl.h
+ *
+ * Spin control widget.
+ */
+
+/**
+ * Spin control widget.
+ *
+ * A spin control widget works as an input box that can be used to
+ * set numeric values, but also has buttons that allow its value
+ * to be increased or decreased.
+ */
+
+typedef struct txt_spincontrol_s txt_spincontrol_t;
+
+typedef enum
+{
+    TXT_SPINCONTROL_INT,
+    TXT_SPINCONTROL_FLOAT,
+} txt_spincontrol_type_t;
+
+#include "txt_widget.h"
+
+struct txt_spincontrol_s
+{
+    txt_widget_t widget;
+    txt_spincontrol_type_t type;
+    union { float f; int i; } min, max, *value, step; 
+    int editing;
+    char *buffer;
+};
+
+/**
+ * Create a new spin control widget tracking an integer value.
+ *
+ * @param value        Pointer to the variable containing the value
+ *                     displayed in the widget.
+ * @param min          Minimum value that may be set.
+ * @param max          Maximum value that may be set.
+ * @return             Pointer to the new spin control widget.
+ */
+
+txt_spincontrol_t *TXT_NewSpinControl(int *value, int min, int max);
+
+/**
+ * Create a new spin control widget tracking a float value.
+ *
+ * @param value        Pointer to the variable containing the value
+ *                     displayed in the widget.
+ * @param min          Minimum value that may be set.
+ * @param max          Maximum value that may be set.
+ * @return             Pointer to the new spin control widget.
+ */
+
+txt_spincontrol_t *TXT_NewFloatSpinControl(float *value, float min, float max);
+
+#endif /* #ifndef TXT_SPINCONTROL_H */
+
+