157 lines
3.4 KiB
C++
157 lines
3.4 KiB
C++
/*
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options_util.qc
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Utilities for the options menu
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Copyright (C) 2002 Robin Redeker <elmex@x-paste.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#include "draw.h"
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#include "system.h"
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#include "math.h"
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#include "string.h"
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/*
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opt_cursor
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function for drawing the cursor
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*/
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void (integer x, integer y)
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opt_cursor =
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{
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// use time becaus we want a nice rotaing cursor
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Draw_Character (x, y, 12 + (integer) (time * 4) & 1);
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};
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/*
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draw_perc_bar
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Draws a percentage bar by giving its size (in chars),
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x and y position and the percentage from 0 to 100
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*/
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void (integer x, integer y, integer size, integer perc_val)
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draw_perc_bar =
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{
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local float perc;
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local integer i;
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if (perc_val > 100) {
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perc_val = 100;
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} else if (perc_val < 0) {
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perc_val = 0;
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}
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perc = itof (perc_val) / (100 / itof (size));
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/* 128, 129, 130 and 131 are special characters for scrollbars */
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Draw_Character (x, y, 128); // draw beginning
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for (i = 0; i <= size; i++) {
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Draw_Character (x + ((i + 1) * 8), y, 129); // draw the borders
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}
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Draw_Character (x + ((i + 1) * 8), y, 130); // draw last char
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Draw_Character (x + ((ftoi (perc) + 1) * 8), y, 131); // draw slider
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};
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/*
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draw_item
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Draws a item with a specific spacing between label and value to
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position x, y.
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Used as helper function for draw_val_item.
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*/
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void (integer x, integer y, integer spacing, string spacechar,
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string label, string valstr)
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draw_item =
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{
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local integer i;
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Draw_String (x, y, label);
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for (i = x + (integer) strlen (label) * 8; i < (x+spacing); i += 8) {
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Draw_String (i, y, spacechar);
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}
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Draw_String (x + spacing, y, valstr);
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};
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/*
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draw_val_item
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Draws a nice menu item.
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Use this function for a consistent look of menu items!
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Example:
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<Label>.....:<valstr>
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spacing are the number of the points to put
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*/
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void (integer x, integer y, integer spacing, string label, string valstr)
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draw_val_item =
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{
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draw_item (x, y, spacing, ".", label, ":" + valstr);
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};
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/*
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to_percentage
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Calculates the percentage of a value relative
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to a min and max value.
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*/
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integer (float min, float max, float val)
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to_percentage =
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{
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local float max_v = (max - min);
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local integer perc;
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val -= min;
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if (val > max_v) {
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val = max_v;
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}
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if (val < 0) {
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val = 0;
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}
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perc = ftoi ((val / max_v) * 100);
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return perc;
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};
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/*
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min_max_cnt
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Increases or decreases a value by take care of the bordervalues.
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min, max are the borders.
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step is the step by in-/de-creasing.
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cntflag should be true for increasing and false for decreasing
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*/
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float (float min, float max, float step, float val, integer cntflag)
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min_max_cnt =
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{
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if (cntflag) {
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val += step;
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} else {
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val -= step;
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}
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if (val > max) {
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val = max;
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} else if (val < min) {
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val = min;
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}
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return val;
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};
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