forked from KolibriOS/kolibrios
90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
#ifndef KOLIBRI_EDITBOX_H
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#define KOLIBRI_EDITBOX_H
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#include "kolibri_colors.h"
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struct edit_box {
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unsigned int width;
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unsigned int left;
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unsigned int top;
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unsigned int color;
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unsigned int shift_color;
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unsigned int focus_border_color;
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unsigned int blur_border_color;
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unsigned int text_color;
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unsigned int max;
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char *text;
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unsigned int mouse_variable;
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unsigned int flags;
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/* The following struct members are not used by the users of API */
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unsigned int size;
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unsigned int pos;
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unsigned int offset;
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unsigned int cl_curs_x;
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unsigned int cl_curs_y;
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unsigned int shift;
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unsigned int shift_old;
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};
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/* Initializes an Editbox with sane settings, sufficient for most use.
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This will let you create a box and position it somewhere on the screen.
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The text_buffer is a pointer to a character array and needs to be as long as
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AT LEAST MAX_CHARS + 1.If the text_buffer is smaller, it will crash if user
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types more characters than what will fit into the text buffer.
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Allocating buffer space automatically so that programmer can be carefree now.
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This also automatically adjusts the size of edit box so that it can hold enough characters.
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All you need is :
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tlx,tly = Coordinates of the beginning of the edit box.
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max_chars = Limit of number of characters user can enter into edit box.
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*/
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struct edit_box* kolibri_new_edit_box(unsigned int tlx, unsigned int tly, unsigned int max_chars)
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{
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unsigned int PIXELS_PER_CHAR = 7;
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struct edit_box *new_textbox = (struct edit_box *)malloc(sizeof(struct edit_box));
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char *text_buffer = (char *)calloc(max_chars + 1, sizeof(char));
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/* Update blur_border_color and shift_color from box_lib.mac macro */
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/* edit_boxes_set_sys_color */
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new_textbox -> width = max_chars * PIXELS_PER_CHAR;
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new_textbox -> left = tlx;
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new_textbox -> top = tly;
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new_textbox -> color = 0xFFFFFF; /* Always make white edit boxes */
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new_textbox -> shift_color = 0x6a9480;
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new_textbox -> focus_border_color = kolibri_color_table.color_work_graph;
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new_textbox -> blur_border_color = 0x6a9480;
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new_textbox -> text_color = kolibri_color_table.color_work_text; /* Always black text when typing */
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new_textbox -> max = max_chars;
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new_textbox -> text = text_buffer;
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new_textbox -> mouse_variable = 1; /* let the mouse take control? */
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new_textbox -> flags = 0x00000000;
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/* If these lines are uncommented, the executable will crash for no reason at start */
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/* Even though these lines are not ever read it ALWAYS causes a crash, even crashes MTDBG. What gives? */
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new_textbox -> size = 0;
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new_textbox -> pos = 0;
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new_textbox -> offset = 0;
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new_textbox -> cl_curs_x = 0;
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new_textbox -> cl_curs_y = 0;
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new_textbox -> shift = 0;
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new_textbox -> shift_old = 0;
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return new_textbox;
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}
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extern void (*edit_box_draw)(struct edit_box *) __attribute__((__stdcall__));
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/* editbox_key is a wrapper written in assembly to handle key press events for editboxes */
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/* because inline assembly in GCC is a PITA and interferes with the EAX (AH) register */
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/* which edit_box_key requires */
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extern void editbox_key(struct edit_box *) __attribute__((__stdcall__));
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extern void (*edit_box_mouse)(struct edit_box *) __attribute__((__stdcall__));
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extern volatile unsigned press_key;
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#endif /* KOLIBRI_EDITBOX_H */
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