+++ /dev/null
-/* editor text drawing.
-
- Copyright (C) 1996, 1997 the Free Software Foundation
-
- Authors: 1996, 1997 Paul Sheer
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include <config.h>
-#include "edit.h"
-
-#define MAX_LINE_LEN 1024
-
-#ifndef MIDNIGHT
-#include "app_glob.c"
-#include "coollocal.h"
-#else
-#include "../src/mad.h"
-#endif
-
-
-static void status_string (WEdit * edit, char *s, int w, int fill, int font_width)
-{
- int i;
- char t[160]; /* 160 just to be sure */
-/* The field lengths just prevents the status line from shortening to much */
- sprintf (t, "[%c%c%c%c] %2ld:%3ld+%2ld=%3ld/%3ld - *%-4ld/%4ldb=%3d",
- edit->mark1 != edit->mark2 ? 'B' : '-',
- edit->modified ? 'M' : '-', edit->macro_i < 0 ? '-' : 'R',
- edit->overwrite == 0 ? '-' : 'O',
- edit->curs_col / font_width, edit->start_line + 1, edit->curs_row,
- edit->curs_line + 1, edit->total_lines + 1, edit->curs1,
- edit->last_byte, edit->curs1 < edit->last_byte
- ? edit_get_byte (edit, edit->curs1) : -1);
- sprintf (s, "%.*s", w + 1, t);
- i = strlen (s);
- s[i] = ' ';
- i = w;
- do {
- if (strchr (" +-*=/:b", s[i])) /* chop off the last word/number */
- break;
- s[i] = fill;
- } while (i--);
- s[i] = fill;
- s[w] = 0;
-}
-
-
-#ifdef MIDNIGHT
-
-/* how to get as much onto the status line as is numerically possible :) */
-void edit_status (WEdit * edit)
-{
- int w, i, t;
- char *s;
- w = edit->widget.cols - (edit->have_frame * 2);
- s = malloc (w + 15);
- if (w < 4)
- w = 4;
- memset (s, ' ', w);
- attrset (SELECTED_COLOR);
- if (w > 4) {
- widget_move (edit, edit->have_frame, edit->have_frame);
- i = w > 24 ? 18 : w - 6;
- i = i < 13 ? 13 : i;
- sprintf (s, "%s", name_trunc (edit->filename ? edit->filename : "", i));
- i += strlen (s);
- s[strlen (s)] = ' ';
- t = w - 20;
- if (t < 0)
- t = 0;
- status_string (edit, s + 20, t, ' ', 1);
- } else {
- s[w] = 0;
- }
- printw ("%.*s", w, s);
-
- attrset (NORMAL_COLOR);
- free (s);
-}
-
-#else
-
-extern int fixed_font;
-
-void rerender_text (CWidget * wdt);
-
-void edit_status (WEdit * edit)
-{
- if ((edit->widget->options & EDITOR_NO_TEXT)) {
- return;
- } else {
- int w, i, t;
- CWidget *wdt;
- char id[33];
- char s[160];
- w = edit->num_widget_columns - 1;
- if (w > 150)
- w = 150;
- if (w < 0)
- w = 0;
- memset (s, 0, w);
- if (w > 1) {
- i = w > 24 ? 18 : w - 6;
- i = i < 13 ? 13 : i;
- sprintf (s, "%s", name_trunc (edit->filename ? edit->filename : "", i));
- i = strlen (s);
- s[i] = ' ';
- s[i+1] = ' ';
- t = w - i - 2;
- if (t < 0)
- t = 0;
- status_string (edit, s + i + 2, t, 0, FONT_MEAN_WIDTH);
- }
- s[w] = 0;
- strcpy (id, edit->widget->ident);
- strcat (id, ".text");
- wdt = CIdent (id);
- free (wdt->text);
- wdt->text = strdup (s);
- CSetWidgetSize (id, edit->widget->width, wdt->height);
- rerender_text (wdt);
- }
-}
-
-
-#endif
-
-
-/* boolean */
-int cursor_in_screen (WEdit * edit, long row)
-{
- if (row < 0 || row >= edit->num_widget_lines)
- return 0;
- else
- return 1;
-}
-
-/* returns rows from the first displayed line to the cursor */
-int cursor_from_display_top (WEdit * edit)
-{
- if (edit->curs1 < edit->start_display)
- return -edit_move_forward (edit, edit->curs1, 0, edit->start_display);
- else
- return edit_move_forward (edit, edit->start_display, 0, edit->curs1);
-}
-
-/* returns how far the cursor is out of the screen */
-int cursor_out_of_screen (WEdit * edit)
-{
- int row = cursor_from_display_top (edit);
- if (row >= edit->num_widget_lines)
- return row - edit->num_widget_lines + 1;
- if (row < 0)
- return row;
- return 0;
-}
-
-#ifndef MIDNIGHT
-extern unsigned char per_char[256];
-int edit_width_of_long_printable (int c);
-#endif
-
-/* this scrolls the text so that cursor is on the screen */
-void edit_scroll_screen_over_cursor (WEdit * edit)
-{
- int p, l;
- int outby;
- p = edit_get_col (edit);
- edit_update_curs_row (edit);
-#ifdef MIDNIGHT
- outby = p + edit->start_col - edit->num_widget_columns + 1 + (EDIT_RIGHT_EXTREME + edit->found_len);
-#else
- outby = p + edit->start_col - edit->widget->width + 7 + (EDIT_RIGHT_EXTREME + edit->found_len) * FONT_MEAN_WIDTH + edit_width_of_long_printable (edit_get_byte (edit, edit->curs1));
-#endif
- if (outby > 0)
- edit_scroll_right (edit, outby);
-#ifdef MIDNIGHT
- outby = EDIT_LEFT_EXTREME - p - edit->start_col;
-#else
- outby = EDIT_LEFT_EXTREME * FONT_MEAN_WIDTH - p - edit->start_col;
-#endif
- if (outby > 0)
- edit_scroll_left (edit, outby);
- p = edit->curs_row;
- l = 0;
- if (edit->found_len != 0)
- l = edit->num_widget_lines / 5;
- outby = p - edit->num_widget_lines + 1 + EDIT_BOTTOM_EXTREME + l;
- if (outby > 0)
- edit_scroll_downward (edit, outby);
- outby = EDIT_TOP_EXTREME - p + l;
- if (outby > 0)
- edit_scroll_upward (edit, outby);
- edit_update_curs_row (edit);
-}
-
-
-#ifndef MIDNIGHT
-
-#define CACHE_WIDTH 256
-#define CACHE_HEIGHT 128
-
-int EditExposeRedraw = 0;
-int EditClear = 0;
-
-/* background colors: marked is refers to mouse highlighting, highlighted refers to a found string. */
-unsigned long edit_abnormal_color, edit_marked_abnormal_color;
-unsigned long edit_highlighted_color, edit_marked_color;
-unsigned long edit_normal_background_color;
-
-/* foreground colors */
-unsigned long edit_normal_foreground_color, edit_bold_color;
-unsigned long edit_italic_color;
-
-/* cursor color */
-unsigned long edit_cursor_color;
-
-void edit_set_foreground_colors (unsigned long normal, unsigned long bold, unsigned long italic)
-{
- edit_normal_foreground_color = normal;
- edit_bold_color = bold;
- edit_italic_color = italic;
-}
-
-void edit_set_background_colors (unsigned long normal, unsigned long abnormal, unsigned long marked, unsigned long marked_abnormal, unsigned long highlighted)
-{
- edit_abnormal_color = abnormal;
- edit_marked_abnormal_color = marked_abnormal;
- edit_marked_color = marked;
- edit_highlighted_color = highlighted;
- edit_normal_background_color = normal;
-}
-
-void edit_set_cursor_color (unsigned long c)
-{
- edit_cursor_color = c;
-}
-
-#else
-
-#define BOLD_COLOR MARKED_COLOR
-#define UNDERLINE_COLOR VIEW_UNDERLINED_COLOR
-#define MARK_COLOR SELECTED_COLOR
-#define DEF_COLOR NORMAL_COLOR
-
-static void set_color (int font)
-{
- attrset (font);
-}
-
-#define edit_move(x,y) widget_move(edit, y, x);
-
-static void print_to_widget (WEdit * edit, long row, int start_col, float start_col_real, long end_col, unsigned int line[])
-{
- int x = (float) start_col_real + EDIT_TEXT_HORIZONTAL_OFFSET;
- int x1 = start_col + EDIT_TEXT_HORIZONTAL_OFFSET;
- int y = row + EDIT_TEXT_VERTICAL_OFFSET;
-
- set_color (DEF_COLOR);
- edit_move (x1, y);
- hline (' ', end_col + 1 - EDIT_TEXT_HORIZONTAL_OFFSET - x1);
-
- edit_move (x + FONT_OFFSET_X, y + FONT_OFFSET_Y);
- {
- unsigned int *p = line;
- int textchar = ' ';
- long style;
-
- while (*p) {
- style = *p >> 8;
- textchar = *p & 0xFF;
-#ifdef HAVE_SYNTAXH
- if (!(style & (0xFF - MOD_ABNORMAL - MOD_CURSOR)))
- SLsmg_set_color ((*p & 0x007F0000) >> 16);
-#endif
- if (style & MOD_ABNORMAL)
- textchar = '.';
- if (style & MOD_HIGHLIGHTED) {
- set_color (BOLD_COLOR);
- } else if (style & MOD_MARKED) {
- set_color (MARK_COLOR);
- }
- if (style & MOD_UNDERLINED) {
- set_color (UNDERLINE_COLOR);
- }
- if (style & MOD_BOLD) {
- set_color (BOLD_COLOR);
- }
- addch (textchar);
- p++;
- }
- }
-}
-
-/* b pointer to begining of line */
-static void edit_draw_this_line (WEdit * edit, long b, long row, long start_col, long end_col)
-{
- static unsigned int line[MAX_LINE_LEN];
- unsigned int *p = line;
- long m1 = 0, m2 = 0, q;
- int col, start_col_real;
- unsigned int c;
- int fg, bg;
- int i;
-
- edit_get_syntax_color (edit, b - 1, &fg, &bg);
- q = edit_move_forward3 (edit, b, start_col - edit->start_col, 0);
- start_col_real = (col = (int) edit_move_forward3 (edit, b, 0, q)) + edit->start_col;
-
- if (col + 16 > -edit->start_col) {
- eval_marks (edit, &m1, &m2);
-
- if (row <= edit->total_lines - edit->start_line) {
- while (col <= end_col - edit->start_col) {
- *p = 0;
- if (q == edit->curs1)
- *p |= MOD_CURSOR * 256;
- if (q >= m1 && q < m2)
- *p |= MOD_MARKED * 256;
- if (q == edit->bracket)
- *p |= MOD_BOLD * 256;
- if (q >= edit->found_start && q < edit->found_start + edit->found_len)
- *p |= MOD_HIGHLIGHTED * 256;
- c = edit_get_byte (edit, q);
- edit_get_syntax_color (edit, q, &fg, &bg);
-/* we don't use bg for mc - fg contains both */
- *p |= fg << 16;
- q++;
- switch (c) {
- case '\n':
- col = end_col - edit->start_col + 1; /* quit */
- *(p++) |= ' ';
- break;
- case '\t':
- i = TAB_SIZE - ((int) col % TAB_SIZE);
- *p |= ' ';
- c = *(p++) & (0xFFFFFFFF - MOD_CURSOR * 256);
- col += i;
- while (--i)
- *(p++) = c;
- break;
- case '\r':
- break;
- default:
- if (is_printable (c)) {
- *(p++) |= c;
- } else {
- *(p++) = '.';
- *p |= (256 * MOD_ABNORMAL);
- }
- col++;
- break;
- }
- }
- }
- } else {
- start_col_real = start_col = 0;
- }
- *p = 0;
-
- print_to_widget (edit, row, start_col, start_col_real, end_col, line);
-}
-
-#endif
-
-#ifdef MIDNIGHT
-
-#define key_pending(x) (!is_idle())
-
-#else
-
-int edit_mouse_pending (Window win);
-#define edit_draw_this_line edit_draw_this_line_proportional
-
-static int key_pending (WEdit * edit)
-{
- if (!(edit->force & REDRAW_COMPLETELY) && !EditExposeRedraw)
- return CKeyPending ();
- return 0;
-}
-
-#endif
-
-
-/* b for pointer to begining of line */
-static void edit_draw_this_char (WEdit * edit, long curs, long row)
-{
- int b = edit_bol (edit, curs);
-#ifdef MIDNIGHT
- edit_draw_this_line (edit, b, row, 0, edit->num_widget_columns - 1);
-#else
- edit_draw_this_line (edit, b, row, 0, edit->widget->width);
-#endif
-}
-
-/* cursor must be in screen for other than REDRAW_PAGE passed in force */
-void render_edit_text (WEdit * edit, long start_row, long start_column, long end_row, long end_column)
-{
- long row = 0, curs_row;
- static int prev_curs_row = 0;
- static long prev_start_display = 0;
- static int prev_start_col = 0;
- static long prev_curs = 0;
-
-#ifndef MIDNIGHT
- static Window prev_win = 0;
-#endif
- int fg, bg;
-
- int force = edit->force;
- long b;
-
-/*
- if the position of the page has not moved then we can draw the cursor character only.
- This will prevent line flicker when using arrow keys.
- */
- if ((!(force & REDRAW_CHAR_ONLY)) || (force & REDRAW_PAGE)
-#ifndef MIDNIGHT
- || prev_win != edit->widget->winid
-#endif
- ) {
- if (!(force & REDRAW_IN_BOUNDS)) { /* !REDRAW_IN_BOUNDS means to ignore bounds and redraw whole rows */
- start_row = 0;
- end_row = edit->num_widget_lines - 1;
- start_column = 0;
-#ifdef MIDNIGHT
- end_column = edit->num_widget_columns - 1;
-#else
- end_column = edit->widget->width;
-#endif
- }
- if (force & REDRAW_PAGE) {
- row = start_row;
- b = edit_move_forward (edit, edit->start_display, start_row, 0);
- while (row <= end_row) {
- if (key_pending (edit))
- goto exit_render;
- edit_draw_this_line (edit, b, row, start_column, end_column);
- b = edit_move_forward (edit, b, 1, 0);
- row++;
- }
- } else {
- curs_row = edit->curs_row;
-
- if (force & REDRAW_BEFORE_CURSOR) {
- if (start_row < curs_row) {
- long upto = curs_row - 1 <= end_row ? curs_row - 1 : end_row;
- row = start_row;
- b = edit->start_display;
- while (row <= upto) {
- if (key_pending (edit))
- goto exit_render;
- edit_draw_this_line (edit, b, row, start_column, end_column);
- b = edit_move_forward (edit, b, 1, 0);
- }
- }
- }
-/* if (force & REDRAW_LINE) { ---> default */
- b = edit_bol (edit, edit->curs1);
- if (curs_row >= start_row && curs_row <= end_row) {
- if (key_pending (edit))
- goto exit_render;
- edit_draw_this_line (edit, b, curs_row, start_column, end_column);
- }
- if (force & REDRAW_AFTER_CURSOR) {
- if (end_row > curs_row) {
- row = curs_row + 1 < start_row ? start_row : curs_row + 1;
- b = edit_move_forward (edit, b, 1, 0);
- while (row <= end_row) {
- if (key_pending (edit))
- goto exit_render;
- edit_draw_this_line (edit, b, row, start_column, end_column);
- b = edit_move_forward (edit, b, 1, 0);
- row++;
- }
- }
- }
- if (force & REDRAW_LINE_ABOVE && curs_row >= 1) {
- row = curs_row - 1;
- b = edit_move_backward (edit, edit_bol (edit, edit->curs1), 1);
- if (row >= start_row && row <= end_row) {
- if (key_pending (edit))
- goto exit_render;
- edit_draw_this_line (edit, b, row, start_column, end_column);
- }
- }
- if (force & REDRAW_LINE_BELOW && row < edit->num_widget_lines - 1) {
- row = curs_row + 1;
- b = edit_bol (edit, edit->curs1);
- b = edit_move_forward (edit, b, 1, 0);
- if (row >= start_row && row <= end_row) {
- if (key_pending (edit))
- goto exit_render;
- edit_draw_this_line (edit, b, row, start_column, end_column);
- }
- }
- }
- } else {
- if (prev_curs_row < edit->curs_row) { /* with the new text highlighting, we must draw from the top down */
- edit_draw_this_char (edit, prev_curs, prev_curs_row);
- edit_draw_this_char (edit, edit->curs1, edit->curs_row);
- } else {
- edit_draw_this_char (edit, edit->curs1, edit->curs_row);
- edit_draw_this_char (edit, prev_curs, prev_curs_row);
- }
- }
-
- edit->force = 0;
-
- prev_curs_row = edit->curs_row;
- prev_curs = edit->curs1;
- prev_start_display = edit->start_display;
- prev_start_col = edit->start_col;
-#ifndef MIDNIGHT
- prev_win = edit->widget->winid;
-#endif
- exit_render:
- edit_get_syntax_color (edit, edit->start_display - 1, &fg, &bg);
-}
-
-
-
-#ifndef MIDNIGHT
-
-void edit_convert_expose_to_area (XExposeEvent * xexpose, int *row1, int *col1, int *row2, int *col2)
-{
- *col1 = xexpose->x - EDIT_TEXT_HORIZONTAL_OFFSET;
- *row1 = (xexpose->y - EDIT_TEXT_VERTICAL_OFFSET) / FONT_PIX_PER_LINE;
- *col2 = xexpose->x + xexpose->width + EDIT_TEXT_HORIZONTAL_OFFSET + 3;
- *row2 = (xexpose->y + xexpose->height - EDIT_TEXT_VERTICAL_OFFSET) / FONT_PIX_PER_LINE;
-}
-
-void edit_render_tidbits (CWidget * wdt)
-{
- int isfocussed;
- int w = wdt->width, h = wdt->height;
- Window win;
-
- win = wdt->winid;
- isfocussed = (win == CGetFocus ());
-
- CSetColor (COLOR_FLAT);
-
- if (isfocussed) {
- render_bevel (win, 0, 0, w - 1, h - 1, 3, 1); /*most outer border bevel */
- } else {
- render_bevel (win, 2, 2, w - 3, h - 3, 1, 1); /*border bevel */
- render_bevel (win, 0, 0, w - 1, h - 1, 2, 0); /*most outer border bevel */
- }
-}
-
-void edit_set_space_width (int s);
-extern int option_long_whitespace;
-
-#endif
-
-void edit_render (WEdit * edit, int page, int row_start, int col_start, int row_end, int col_end)
-{
- int f = 0;
- if (page) /* if it was an expose event, 'page' would be set */
- edit->force |= REDRAW_PAGE | REDRAW_IN_BOUNDS;
- f = edit->force & (REDRAW_PAGE | REDRAW_COMPLETELY);
-
-#ifdef MIDNIGHT
- if (edit->force & REDRAW_COMPLETELY)
- redraw_labels (edit->widget.parent, (Widget *) edit);
-#else
- if (option_long_whitespace)
- edit_set_space_width (per_char[' '] * 2);
- else
- edit_set_space_width (per_char[' ']);
- edit_set_foreground_colors (
- color_palette (option_editor_fg_normal),
- color_palette (option_editor_fg_bold),
- color_palette (option_editor_fg_italic)
- );
- edit_set_background_colors (
- color_palette (option_editor_bg_normal),
- color_palette (option_editor_bg_abnormal),
- color_palette (option_editor_bg_marked),
- color_palette (option_editor_bg_marked_abnormal),
- color_palette (option_editor_bg_highlighted)
- );
- edit_set_cursor_color (
- color_palette (option_editor_fg_cursor)
- );
-
- if (!EditExposeRedraw)
- set_cursor_position (0, 0, 0, 0, 0, 0, 0, 0, 0);
-#endif
-
- render_edit_text (edit, row_start, col_start, row_end, col_end);
- if (edit->force) /* edit->force != 0 means a key was pending and the redraw
- was halted, so next time we must redraw everything in case stuff
- was left undrawn from a previous key press */
- edit->force |= REDRAW_PAGE;
-#ifndef MIDNIGHT
- if (f) {
- edit_render_tidbits (edit->widget);
- CSetColor (edit_normal_background_color);
- CLine (edit->widget->winid, 3, 3, 3, edit->widget->height - 4);
- }
-#endif
-}
-
-#ifndef MIDNIGHT
-void edit_render_expose (WEdit * edit, XExposeEvent * xexpose)
-{
- int row_start, col_start, row_end, col_end;
- EditExposeRedraw = 1;
- edit->num_widget_lines = (edit->widget->height - 6) / FONT_PIX_PER_LINE;
- edit->num_widget_columns = (edit->widget->width - 7) / FONT_MEAN_WIDTH;
- if (edit->force & (REDRAW_PAGE | REDRAW_COMPLETELY)) {
- edit->force |= REDRAW_PAGE | REDRAW_COMPLETELY;
- edit_render_keypress (edit);
- } else {
- edit_convert_expose_to_area (xexpose, &row_start, &col_start, &row_end, &col_end);
- edit_render (edit, 1, row_start, col_start, row_end, col_end);
- }
- EditExposeRedraw = 0;
-}
-
-void edit_render_keypress (WEdit * edit)
-{
- edit_render (edit, 0, 0, 0, 0, 0);
-}
-
-#else
-
-void edit_render_keypress (WEdit * edit)
-{
- edit_render (edit, 0, 0, 0, 0, 0);
-}
-
-#endif
projects / reactos.git / blobdiff