--- /dev/null
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * 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 BCPOT_H
+#define BCPOT_H
+
+#include "bcpixmap.h"
+#include "vframe.inc"
+#include "bcsubwindow.h"
+
+#define POT_UP 0
+#define POT_HIGH 1
+#define POT_DN 2
+#define POT_STATES 3
+
+class BC_FPot;
+class BC_IPot;
+class BC_QPot;
+class BC_PercentagePot;
+
+class BC_Pot : public BC_SubWindow
+{
+public:
+ BC_Pot(int x, int y, VFrame **data);
+ virtual ~BC_Pot();
+
+ friend class BC_FPot;
+ friend class BC_IPot;
+ friend class BC_QPot;
+ friend class BC_PercentagePot;
+
+
+ static int calculate_h();
+ static int calculate_w();
+ int initialize();
+ virtual float get_percentage() { return 0; };
+ virtual int percentage_to_value(float percentage) { return 0; };
+ virtual int handle_event() { return 0; };
+ virtual const char* get_caption() { return ""; };
+ virtual int increase_value() { return 0; };
+ virtual int decrease_value() { return 0; };
+ void set_use_caption(int value);
+ void enable();
+ void disable();
+
+
+ int reposition_window(int x, int y);
+ int repeat_event(int64_t repeat_id);
+ int cursor_enter_event();
+ int cursor_leave_event();
+ int button_press_event();
+ virtual int button_release_event();
+ int cursor_motion_event();
+ int keypress_event();
+
+private:
+ int set_data(VFrame **data);
+ int draw(int flush);
+ float percentage_to_angle(float percentage);
+ float angle_to_percentage(float angle);
+ int angle_to_coords(int &x1, int &y1, int &x2, int &y2, float angle);
+ float coords_to_angle(int x2, int y2);
+ void show_value_tooltip();
+
+ VFrame **data;
+ BC_Pixmap *images[POT_STATES];
+ char caption[BCTEXTLEN];
+ int status;
+ int64_t keypress_tooltip_timer;
+ float angle_offset;
+ float start_cursor_angle;
+ float start_needle_angle;
+ float prev_angle, angle_correction;
+ int use_caption;
+ int enabled;
+};
+
+class BC_FPot : public BC_Pot
+{
+public:
+ BC_FPot(int x,
+ int y,
+ float value,
+ float minvalue,
+ float maxvalue,
+ VFrame **data = 0);
+ ~BC_FPot();
+
+ const char* get_caption();
+ int increase_value();
+ int decrease_value();
+ float get_percentage();
+ float get_value();
+ int percentage_to_value(float percentage);
+ void update(float value);
+ void update(float value, float minvalue, float maxvalue);
+ void set_precision(float value);
+
+private:
+ float value, minvalue, maxvalue;
+ float precision;
+};
+
+class BC_IPot : public BC_Pot
+{
+public:
+ BC_IPot(int x,
+ int y,
+ int64_t value,
+ int64_t minvalue,
+ int64_t maxvalue,
+ VFrame **data = 0);
+ ~BC_IPot();
+
+ const char* get_caption();
+ int increase_value();
+ int decrease_value();
+ float get_percentage();
+ int percentage_to_value(float percentage);
+ int64_t get_value();
+ void update(int64_t value);
+ void update(int64_t value, int64_t minvalue, int64_t maxvalue);
+
+private:
+ int64_t value, minvalue, maxvalue;
+};
+
+class BC_QPot : public BC_Pot
+{
+public:
+ BC_QPot(int x,
+ int y,
+ int64_t value, // Units of frequencies
+ VFrame **data = 0);
+ ~BC_QPot();
+
+ const char* get_caption();
+ int increase_value();
+ int decrease_value();
+ float get_percentage();
+ int percentage_to_value(float percentage);
+// Units of frequencies
+ int64_t get_value();
+// Units of frequencies
+ void update(int64_t value);
+
+private:
+// Units of frequency index
+ int64_t value, minvalue, maxvalue;
+};
+
+class BC_PercentagePot : public BC_Pot
+{
+public:
+ BC_PercentagePot(int x,
+ int y,
+ float value,
+ float minvalue,
+ float maxvalue,
+ VFrame **data = 0);
+ ~BC_PercentagePot();
+
+ const char* get_caption();
+ int increase_value();
+ int decrease_value();
+ float get_percentage();
+ float get_value();
+ int percentage_to_value(float percentage);
+ void update(float value);
+
+private:
+ float value, minvalue, maxvalue;
+};
+
+#endif