medit/moo/mooterm/mootermdraw.c

1527 lines
52 KiB
C

/*
* mooterm/mootermdraw.c
*
* Copyright (C) 2004-2005 by Yevgen Muntyan <muntyan@math.tamu.edu>
*
* 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.
*
* See COPYING file that comes with this distribution.
*/
#define MOOTERM_COMPILATION
#include "mooterm/mooterm-private.h"
#define CHARS \
"`1234567890-=~!@#$%^&*()_+qwertyuiop[]\\QWERTYUIOP"\
"{}|asdfghjkl;'ASDFGHJKL:\"zxcvbnm,./ZXCVBNM<>?"
#define HOW_MANY(x, y) (((x) + (y) - 1) / (y))
void moo_term_init_font_stuff (MooTerm *term)
{
PangoContext *ctx;
PangoFontDescription *font;
if (term->priv->font_info)
term_font_info_free (term->priv->font_info);
ctx = gtk_widget_create_pango_context (GTK_WIDGET (term));
g_return_if_fail (ctx != NULL);
font = pango_font_description_from_string (DEFAULT_MONOSPACE_FONT);
if (!font)
font = pango_font_description_from_string (DEFAULT_MONOSPACE_FONT2);
if (font)
{
pango_context_set_font_description (ctx, font);
pango_font_description_free (font);
}
term->priv->font_info = term_font_info_new (ctx);
term->priv->layout = pango_layout_new (ctx);
g_object_unref (ctx);
}
void term_font_info_calculate (TermFontInfo *info)
{
PangoRectangle logical;
PangoLayout *layout;
PangoLayoutIter *iter;
g_assert (info->ctx != NULL);
layout = pango_layout_new (info->ctx);
pango_layout_set_text (layout, CHARS, strlen(CHARS));
pango_layout_get_extents (layout, NULL, &logical);
info->width = HOW_MANY (logical.width, strlen (CHARS));
info->width = PANGO_PIXELS (info->width);
iter = pango_layout_get_iter (layout);
info->height = PANGO_PIXELS (logical.height);
info->ascent = PANGO_PIXELS (pango_layout_iter_get_baseline (iter));
pango_layout_iter_free (iter);
g_object_unref (layout);
}
void term_font_info_set_font (TermFontInfo *info,
PangoFontDescription *font_desc)
{
g_return_if_fail (font_desc != NULL);
pango_context_set_font_description (info->ctx, font_desc);
term_font_info_calculate (info);
}
TermFontInfo *term_font_info_new (PangoContext *ctx)
{
TermFontInfo *info = g_new0 (TermFontInfo, 1);
info->ctx = ctx;
g_object_ref (ctx);
term_font_info_calculate (info);
return info;
}
void term_font_info_free (TermFontInfo *info)
{
if (info)
{
g_object_unref (info->ctx);
g_free (info);
}
}
void moo_term_force_update (MooTerm *term)
{
GdkRegion *region;
GdkWindow *window = GTK_WIDGET (term)->window;
if (term->priv->pending_expose)
{
g_source_remove (term->priv->pending_expose);
term->priv->pending_expose = 0;
}
region = gdk_window_get_update_area (window);
if (term->priv->dirty)
{
if (region)
{
gdk_region_union (region, term->priv->dirty);
gdk_region_destroy (term->priv->dirty);
}
else
{
region = term->priv->dirty;
}
term->priv->dirty = NULL;
}
if (region)
{
GdkEvent *event = gdk_event_new (GDK_EXPOSE);
event->expose.window = g_object_ref (window);
event->expose.send_event = TRUE;
gdk_region_get_clipbox (region, &event->expose.area);
event->expose.region = region;
gtk_main_do_event (event);
gdk_event_free (event);
}
}
static gboolean emit_expose (MooTerm *term)
{
term->priv->pending_expose = 0;
if (term->priv->dirty)
{
gdk_window_invalidate_region (GTK_WIDGET (term)->window,
term->priv->dirty,
FALSE);
gdk_region_destroy (term->priv->dirty);
term->priv->dirty = NULL;
}
return FALSE;
}
static void queue_expose (MooTerm *term,
GdkRegion *region)
{
if (region)
{
if (term->priv->dirty)
gdk_region_union (term->priv->dirty, region);
else
term->priv->dirty = gdk_region_copy (region);
}
if (!term->priv->pending_expose)
{
term->priv->pending_expose =
g_idle_add_full (EXPOSE_PRIORITY,
(GSourceFunc) emit_expose,
term,
NULL);
}
}
// /* interval [first, last) */
// static void draw_range_simple (MooTerm *term,
// guint abs_row,
// guint first,
// guint last,
// gboolean selected)
// {
// MooTermLine *line;
// int screen_row = abs_row - term_top_line (term);
// int size;
// static char text[8 * MAX_TERMINAL_WIDTH];
// PangoLayout *l;
// GtkWidget *widget = GTK_WIDGET (term);
//
// g_assert (first <= last);
// g_return_if_fail (first != last || first == 0);
// g_assert (last <= term_width (term));
// g_assert (abs_row < buf_total_height (term->priv->buffer));
//
// line = buf_line (term->priv->buffer, abs_row);
// size = term_line_len (line);
//
// if (size < (int)last)
// {
// if ((int)first < size)
// {
// guint chars_len = term_line_get_chars (line, text, first, size - first);
// memset (text + chars_len, EMPTY_CHAR, last - size);
// size = chars_len + last - size;
// }
// else
// {
// memset (text, EMPTY_CHAR, last - first);
// size = last - first;
// }
// }
// else
// {
// size = term_line_get_chars (line, text, first, size - first);
// }
//
// l = term->priv->pango_lines->line;
// pango_layout_set_text (l, text, size);
//
// gdk_draw_rectangle (widget->window,
// term->priv->bg[selected ? SELECTED : NORMAL],
// TRUE,
// first * term->priv->font_info->width,
// screen_row * term->priv->font_info->height,
// (last - first) * term->priv->font_info->width,
// term->priv->font_info->height);
// gdk_draw_layout (widget->window,
// term->priv->fg[selected ? SELECTED : NORMAL],
// first * term->priv->font_info->width,
// screen_row * term->priv->font_info->height,
// l);
// }
// /* interval [first, last) */
// static void draw_range (MooTerm *term, guint abs_row, guint first, guint last)
// {
// guint screen_width = term_width (term);
// TermSelection *sel = term->priv->selection;
// int selected;
//
// g_assert (first <= last);
// /* selection bounds may be stupid ??? */
// g_return_if_fail (first != last || first == 0);
//
// g_assert (last <= screen_width);
//
// selected = term_selection_row_selected (sel, abs_row);
//
// switch (selected)
// {
// case FULL_SELECTED:
// case NOT_SELECTED:
// draw_range_simple (term, abs_row, first, last, selected);
// break;
//
// case PART_SELECTED:
// {
// guint l_row = sel->l_row;
// guint l_col = sel->l_col;
// guint r_row = sel->r_row;
// guint r_col = sel->r_col;
//
// if (l_row == r_row)
// {
// g_assert (abs_row == l_row);
//
// if (r_col <= first || last <= l_col)
// {
// draw_range_simple (term, abs_row,
// first, last, FALSE);
// }
// else if (l_col <= first && last <= r_col)
// {
// draw_range_simple (term, abs_row,
// first, last, TRUE);
// }
// else if (first < l_col)
// {
// draw_range_simple (term, abs_row,
// first, l_col, FALSE);
// draw_range_simple (term, abs_row, l_col,
// MIN (last, r_col), TRUE);
//
// if (r_col < last)
// draw_range_simple (term, abs_row,
// r_col, last, FALSE);
// }
// else
// {
// draw_range_simple (term, abs_row, first,
// MIN (last, r_col), TRUE);
//
// if (r_col < last)
// draw_range_simple (term, abs_row,
// r_col, last, FALSE);
// }
// }
// else if (l_row == abs_row)
// {
// if (last <= l_col)
// {
// draw_range_simple (term, abs_row,
// first, last, FALSE);
// }
// else if (l_col <= first)
// {
// draw_range_simple (term, abs_row,
// first, last, TRUE);
// }
// else
// {
// draw_range_simple (term, abs_row,
// first, l_col, FALSE);
// draw_range_simple (term, abs_row,
// l_col, last, TRUE);
// }
// }
// else
// {
// g_assert (abs_row == r_row);
//
// if (last <= r_col)
// {
// draw_range_simple (term, abs_row,
// first, last, TRUE);
// }
// else if (r_col <= first)
// {
// draw_range_simple (term, abs_row,
// first, last, FALSE);
// }
// else {
// draw_range_simple (term, abs_row,
// first, r_col, TRUE);
// draw_range_simple (term, abs_row,
// r_col, last, FALSE);
// }
// }
// break;
// }
//
// default:
// g_assert_not_reached ();
// }
// }
// static void draw_caret (MooTerm *term, guint abs_row, guint col)
// {
// guint screen_width = term_width (term);
// MooTermLine *line = buf_line (term->priv->buffer, abs_row);
// TermSelection *sel = term->priv->selection;
// char ch[6];
// guint ch_len;
// int screen_row = abs_row - term_top_line (term);
// PangoLayout *l;
// GdkGC **fg = term->priv->fg;
// GdkGC **bg = term->priv->bg;
// guint char_width = term->priv->font_info->width;
// guint char_height = term->priv->font_info->height;
// GtkWidget *widget = GTK_WIDGET (term);
//
// g_assert (col < screen_width);
//
// if (!buf_cursor_visible (term->priv->buffer))
// return;
// /* return draw_range (term, abs_row, col, col + 1); */
//
// if (col < term_line_len (line))
// {
// ch_len = g_unichar_to_utf8 (term_line_get_unichar (line, col), ch);
// }
// else
// {
// ch[0] = EMPTY_CHAR;
// ch_len = 1;
// }
//
// l = term->priv->pango_lines->line;
// pango_layout_set_text (l, ch, ch_len);
//
// switch (term->priv->caret_shape)
// {
// case CARET_BLOCK:
// if (!term_selected (sel, abs_row, col))
// {
// gdk_draw_rectangle (widget->window, bg[CURSOR], TRUE,
// col * char_width,
// screen_row * char_height,
// char_width,
// char_height);
// gdk_draw_layout (widget->window, fg[CURSOR],
// col * char_width,
// screen_row * char_height,
// l);
// }
// else
// {
// gdk_draw_rectangle (widget->window, bg[CURSOR], FALSE,
// col * char_width,
// screen_row * char_height,
// char_width,
// char_height);
// gdk_draw_rectangle (widget->window, fg[CURSOR], TRUE,
// col * char_width,
// screen_row * char_height,
// char_width,
// char_height);
// gdk_draw_layout (widget->window, bg[CURSOR],
// col * char_width,
// screen_row * char_height,
// l);
// }
// break;
//
// case CARET_UNDERLINE:
// if (!term_selected (sel, abs_row, col))
// {
// gdk_draw_rectangle (widget->window, bg[NORMAL], TRUE,
// col * char_width,
// screen_row * char_height,
// char_width,
// char_height);
// gdk_draw_layout (widget->window, fg[NORMAL],
// col * char_width,
// screen_row * char_height,
// l);
// gdk_draw_rectangle (widget->window, bg[CURSOR],
// TRUE,
// col * char_width,
// (screen_row + 1) * char_height - term->priv->caret_height,
// char_width,
// term->priv->caret_height);
// }
// else
// {
// gdk_draw_rectangle (widget->window, bg[SELECTED], TRUE,
// col * char_width,
// screen_row * char_height,
// char_width,
// char_height);
// gdk_draw_layout (widget->window, fg[SELECTED],
// col * char_width,
// screen_row * char_height,
// l);
// gdk_draw_rectangle (widget->window, fg[CURSOR],
// TRUE,
// col * char_width,
// (screen_row + 1) * char_height - term->priv->caret_height,
// char_width,
// term->priv->caret_height);
// }
// break;
// }
// }
// static void draw_line (MooTerm *term, guint abs_row)
// {
// MooTermLine *line = buf_line (term->priv->buffer, abs_row);
// TermSelection *sel = term->priv->selection;
// GtkWidget *widget = GTK_WIDGET (term);
// int selected;
//
// selected = term_selection_row_selected (sel, abs_row);
//
// switch (selected)
// {
// case FULL_SELECTED:
// case NOT_SELECTED:
// {
// int screen_row = abs_row - term_top_line (term);
// guint char_height = term->priv->font_info->height;
//
// g_assert (0 <= screen_row);
// g_assert (screen_row < (int) term_height (term));
//
// if (!term_pango_lines_valid (term->priv->pango_lines,
// screen_row))
// {
// char buf[8 * MAX_TERMINAL_WIDTH];
// guint buf_len = term_line_get_chars (line, buf, 0, -1);
// term_pango_lines_set_text (term->priv->pango_lines,
// screen_row,
// buf, buf_len);
// }
//
// gdk_draw_rectangle (widget->window,
// term->priv->bg[selected ? SELECTED : NORMAL],
// TRUE,
// 0,
// screen_row * char_height,
// widget->allocation.width,
// char_height);
//
// gdk_draw_layout (widget->window,
// term->priv->fg[selected ? SELECTED : NORMAL],
// 0,
// screen_row * char_height,
// term_pango_line (term, screen_row));
//
// break;
// }
//
// case PART_SELECTED:
// {
// guint l_row = sel->l_row;
// guint l_col = sel->l_col;
// guint r_row = sel->r_row;
// guint r_col = sel->r_col;
//
// if (l_row == r_row)
// {
// g_assert (abs_row == l_row);
//
// if (l_col > 0)
// draw_range_simple (term, abs_row, 0, l_col, FALSE);
//
// draw_range_simple (term, abs_row, l_col, r_col, TRUE);
//
// if (r_col < term_width (term))
// draw_range_simple (term, abs_row, r_col,
// term_width (term), FALSE);
// }
// else if (l_row == abs_row)
// {
// if (l_col > 0)
// draw_range_simple (term, abs_row, 0, l_col, FALSE);
//
// draw_range_simple (term, abs_row, l_col,
// term_width (term), TRUE);
// }
// else
// {
// g_assert (abs_row == r_row);
//
// draw_range_simple (term, abs_row, 0, r_col, TRUE);
//
// if (r_col < term_width (term))
// draw_range_simple (term, abs_row, r_col,
// term_width (term), FALSE);
// }
//
// break;
// }
//
// default:
// g_assert_not_reached ();
// }
// }
// gboolean moo_term_expose_event (GtkWidget *widget,
// GdkEventExpose *event)
// {
// GdkRectangle text_rec = {0, 0, 0, 0};
// GdkRegion *text_reg;
//
// MooTerm *term = MOO_TERM (widget);
// MooTermBuffer *buf = term->priv->buffer;
//
// guint char_width = term->priv->font_info->width;
// guint char_height = term->priv->font_info->height;
// guint top_line = term_top_line (term);
//
// g_assert (top_line <= buf_screen_offset (buf));
//
// text_rec.width = term_width (term) * char_width;
// text_rec.height = term_height (term) * char_height;
//
// if (event->area.x + event->area.width >= text_rec.width)
// {
// gdk_draw_rectangle (widget->window,
// term->priv->bg[NORMAL], TRUE,
// text_rec.width, 0,
// char_width,
// widget->allocation.height);
// }
//
// if (event->area.y + event->area.height >= text_rec.height)
// {
// gdk_draw_rectangle (widget->window,
// term->priv->bg[NORMAL], TRUE,
// 0, text_rec.height,
// widget->allocation.width,
// char_height);
// }
//
// text_reg = gdk_region_rectangle (&text_rec);
// gdk_region_intersect (event->region, text_reg);
// gdk_region_destroy (text_reg);
//
// if (!gdk_region_empty (event->region))
// {
// GdkRectangle *changed, *rect;
// int n_changed;
//
// gdk_region_get_rectangles (event->region,
// &changed, &n_changed);
// g_assert (changed != NULL);
//
// for (rect = changed; rect < changed + n_changed; ++rect)
// {
// int left = HOW_MANY (rect->x + 1, char_width) - 1;
// int top = HOW_MANY (rect->y + 1, char_height) - 1;
// int width = HOW_MANY (rect->x + rect->width, char_width) - left;
// int height = HOW_MANY (rect->y + rect->height, char_height) - top;
//
// int abs_first = top + top_line;
// int abs_last = abs_first + height;
//
// if (rect->width == text_rec.width)
// {
// int i;
// for (i = abs_first; i < abs_last; ++i)
// draw_line (term, i);
// }
// else
// {
// int i;
// for (i = abs_first; i < abs_last; ++i)
// draw_range (term, i, left, left + width);
// }
// }
//
// if (buf_cursor_visible (buf))
// {
// int cursor_row_abs = buf_cursor_row_abs (term->priv->buffer);
// int cursor_col = buf_cursor_col (term->priv->buffer);
//
// GdkRectangle cursor = {
// cursor_col * char_width,
// (cursor_row_abs - top_line) * char_height,
// char_width, char_height
// };
//
// switch (gdk_region_rect_in (event->region, &cursor))
// {
// case GDK_OVERLAP_RECTANGLE_IN:
// case GDK_OVERLAP_RECTANGLE_PART:
// draw_caret (term, cursor_row_abs, cursor_col);
// break;
//
// default:
// break;
// }
// }
//
// g_free (changed);
// }
//
// return TRUE;
// }
void moo_term_invalidate_rect (MooTerm *term,
BufRectangle *rect)
{
GdkRectangle r = {
rect->x * term->priv->font_info->width,
rect->y * term->priv->font_info->height,
rect->width * term->priv->font_info->width,
rect->height * term->priv->font_info->height
};
GdkRegion *region = gdk_region_rectangle (&r);
queue_expose (term, region);
gdk_region_destroy (region);
}
void moo_term_setup_palette (MooTerm *term)
{
int i;
GtkWidget *widget = GTK_WIDGET (term);
GdkColormap *colormap;
GdkGCValues vals;
GdkColor colors[MOO_TERM_COLOR_MAX];
g_assert (GTK_WIDGET_REALIZED (widget));
for (i = 0; i < 3; ++i)
{
term->priv->fg[i][MOO_TERM_COLOR_MAX] =
gdk_gc_new_with_values (widget->window, &vals, 0);
term->priv->bg[i][MOO_TERM_COLOR_MAX] =
gdk_gc_new_with_values (widget->window, &vals, 0);
}
gdk_gc_set_foreground (term->priv->fg[NORMAL][MOO_TERM_COLOR_MAX],
&(widget->style->black));
gdk_gc_set_background (term->priv->fg[NORMAL][MOO_TERM_COLOR_MAX],
&(widget->style->white));
gdk_gc_set_foreground (term->priv->fg[SELECTED][MOO_TERM_COLOR_MAX],
&(widget->style->white));
gdk_gc_set_background (term->priv->fg[SELECTED][MOO_TERM_COLOR_MAX],
&(widget->style->black));
gdk_gc_set_foreground (term->priv->fg[CURSOR][MOO_TERM_COLOR_MAX],
&(widget->style->white));
gdk_gc_set_background (term->priv->fg[CURSOR][MOO_TERM_COLOR_MAX],
&(widget->style->black));
gdk_gc_set_foreground (term->priv->bg[NORMAL][MOO_TERM_COLOR_MAX],
&(widget->style->white));
gdk_gc_set_background (term->priv->bg[NORMAL][MOO_TERM_COLOR_MAX],
&(widget->style->black));
gdk_gc_set_foreground (term->priv->bg[SELECTED][MOO_TERM_COLOR_MAX],
&(widget->style->black));
gdk_gc_set_background (term->priv->bg[SELECTED][MOO_TERM_COLOR_MAX],
&(widget->style->white));
gdk_gc_set_foreground (term->priv->bg[CURSOR][MOO_TERM_COLOR_MAX],
&(widget->style->black));
gdk_gc_set_background (term->priv->bg[CURSOR][MOO_TERM_COLOR_MAX],
&(widget->style->white));
gdk_window_set_background (widget->window, &(widget->style->white));
colormap = gdk_colormap_get_system ();
g_return_if_fail (colormap != NULL);
gdk_color_parse ("black", &colors[MOO_TERM_BLACK]);
gdk_color_parse ("red", &colors[MOO_TERM_RED]);
gdk_color_parse ("green", &colors[MOO_TERM_GREEN]);
gdk_color_parse ("yellow", &colors[MOO_TERM_YELLOW]);
gdk_color_parse ("blue", &colors[MOO_TERM_BLUE]);
gdk_color_parse ("magenta", &colors[MOO_TERM_MAGENTA]);
gdk_color_parse ("cyan", &colors[MOO_TERM_CYAN]);
gdk_color_parse ("white", &colors[MOO_TERM_WHITE]);
for (i = 0; i < MOO_TERM_COLOR_MAX; ++i)
gdk_colormap_alloc_color (colormap, &colors[i], TRUE, TRUE);
for (i = 0; i < MOO_TERM_COLOR_MAX; ++i)
{
vals.foreground = colors[i];
vals.background = colors[i];
term->priv->fg[NORMAL][i] =
gdk_gc_new_with_values (widget->window,
&vals,
GDK_GC_FOREGROUND | GDK_GC_BACKGROUND);
term->priv->bg[NORMAL][i] =
gdk_gc_new_with_values (widget->window,
&vals,
GDK_GC_FOREGROUND | GDK_GC_BACKGROUND);
}
}
// void moo_term_buf_content_changed(MooTerm *term)
// {
// MooTermBuffer *buf = term->priv->buffer;
// BufRegion *changed = buf_get_changed (buf);
//
// if (changed && !buf_region_empty (changed))
// {
// GdkRegion *region;
// GdkRectangle *rect = NULL;
// int n_rect, i;
// BufRectangle clip;
// BufRegion *tmp;
//
// guint top_line = term_top_line (term);
// guint screen_offset = buf_screen_offset (buf);
// int height = term_height (term);
// g_assert (top_line <= screen_offset);
//
// changed = buf_region_copy (changed);
// if (top_line != screen_offset)
// buf_region_offset (changed, 0, screen_offset - top_line);
//
// clip.x = 0;
// clip.width = term_width (term);
// clip.y = 0;
// clip.height = height;
//
// tmp = buf_region_rectangle (&clip);
// buf_region_intersect (changed, tmp);
// buf_region_destroy (tmp);
//
// if (buf_region_empty (changed))
// {
// buf_region_destroy (changed);
// return;
// }
//
// gdk_region_get_rectangles (changed, &rect, &n_rect);
// g_return_if_fail (rect != NULL);
//
// for (i = 0; i < n_rect; ++i)
// {
// rect[i].x *= term->priv->font_info->width;
// rect[i].y *= term->priv->font_info->height;
// rect[i].width *= term->priv->font_info->width;
// rect[i].height *= term->priv->font_info->height;
// }
//
// region = gdk_region_new ();
// for (i = 0; i < n_rect; ++i)
// gdk_region_union_with_rect (region, &rect[i]);
//
// queue_expose (term, region);
// gdk_region_destroy (region);
// g_free (rect);
//
// buf_region_get_clipbox (changed, &clip);
// g_assert (clip.y + clip.height <= height);
//
// for (i = clip.y; i < clip.y + clip.height; ++i)
// term_pango_lines_invalidate (term, i);
//
// buf_region_destroy (changed);
// }
// }
void moo_term_cursor_moved (MooTerm *term,
guint old_row,
guint old_col)
{
MooTermBuffer *buf = term->priv->buffer;
if (buf_cursor_visible (buf))
{
int screen_offset = buf_screen_offset (buf);
int top_line = term_top_line (term);
int new_row = buf_cursor_row (buf);
int new_col = buf_cursor_col (buf);
guint char_width = term->priv->font_info->width;
guint char_height = term->priv->font_info->height;
GdkRectangle rect = {0, 0, char_width, char_height};
GdkRectangle small_rect = {0, 0, 1, 1};
rect.x = old_col * char_width;
rect.y = (old_row + screen_offset - top_line) * char_height;
small_rect.x = old_col;
small_rect.y = old_row + screen_offset - top_line;
moo_term_invalidate_content_rect (term, &small_rect);
if (term->priv->dirty)
gdk_region_union_with_rect (term->priv->dirty, &rect);
else
term->priv->dirty = gdk_region_rectangle (&rect);
if (new_row != (int) old_row || new_col != (int) old_col)
{
rect.x = new_col * char_width;
rect.y = (new_row + screen_offset - top_line) * char_height;
gdk_region_union_with_rect (term->priv->dirty, &rect);
small_rect.x = new_col;
small_rect.y = new_row + screen_offset - top_line;
moo_term_invalidate_content_rect (term, &small_rect);
}
queue_expose (term, NULL);
}
}
void moo_term_init_back_pixmap (MooTerm *term)
{
if (term->priv->back_pixmap)
return;
term->priv->back_pixmap =
gdk_pixmap_new (GTK_WIDGET(term)->window,
term->priv->font_info->width * term_width (term),
term->priv->font_info->height * term_height (term),
-1);
term->priv->clip = gdk_gc_new (term->priv->back_pixmap);
gdk_gc_set_clip_origin (term->priv->clip, 0, 0);
moo_term_invalidate_content_all (term);
}
void moo_term_resize_back_pixmap (MooTerm *term)
{
if (term->priv->font_changed)
{
GdkPixmap *pix;
term->priv->font_changed = FALSE;
pix = gdk_pixmap_new (term->priv->back_pixmap,
term->priv->font_info->width * term_width (term),
term->priv->font_info->height * term_height (term),
-1);
g_object_unref (term->priv->back_pixmap);
term->priv->back_pixmap = pix;
moo_term_invalidate_content_all (term);
}
else
{
GdkPixmap *pix;
GdkRegion *region;
guint char_width = term->priv->font_info->width;
guint char_height = term->priv->font_info->height;
int old_width, old_height;
int width = char_width * term_width (term);
int height = char_height * term_height (term);
GdkRectangle rec = {0, 0, width, height};
pix = gdk_pixmap_new (term->priv->back_pixmap,
width, height, -1);
gdk_drawable_get_size (term->priv->back_pixmap,
&old_width, &old_height);
gdk_gc_set_clip_rectangle (term->priv->clip, &rec);
gdk_draw_drawable (pix, term->priv->clip,
term->priv->back_pixmap,
0, 0, 0, 0,
MIN (width, old_width),
MIN (height, old_height));
if (width > old_width)
{
rec.x = old_width / char_width;
rec.width = (width - old_width) / char_width;
rec.y = 0;
rec.height = height / char_height;
moo_term_invalidate_content_rect (term, &rec);
}
if (height > old_height)
{
rec.x = 0;
rec.width = width / char_width;
rec.y = old_height / char_height;
rec.height = (height - old_height) / char_height;
moo_term_invalidate_content_rect (term, &rec);
}
rec.x = rec.y = 0;
rec.width = width / char_width;
rec.height = height / char_height;
if (term->priv->changed_content)
{
region = gdk_region_rectangle (&rec);
gdk_region_intersect (term->priv->changed_content, region);
gdk_region_destroy (region);
}
g_object_unref (term->priv->back_pixmap);
term->priv->back_pixmap = pix;
}
}
/* absolute row */
static void term_draw_range (MooTerm *term,
guint row,
guint start,
guint len);
void moo_term_update_back_pixmap (MooTerm *term)
{
GdkRectangle *rects = NULL;
int n_rects;
int i, j;
int top_line = term_top_line (term);
int width = term_width (term);
int height = term_height (term);
GdkRectangle clip = {0, 0, width, height};
if (!term->priv->changed_content)
return;
gdk_region_get_rectangles (term->priv->changed_content,
&rects, &n_rects);
for (i = 0; i < n_rects; ++i)
{
if (gdk_rectangle_intersect (&rects[i], &clip, &rects[i]))
{
for (j = 0; j < rects[i].height; ++j)
term_draw_range (term, top_line + rects[i].y + j,
rects[i].x, rects[i].width);
}
}
g_free (rects);
gdk_region_destroy (term->priv->changed_content);
term->priv->changed_content = NULL;
}
void moo_term_invalidate_content_all (MooTerm *term)
{
GdkRectangle rect = {0, 0, term_width (term), term_height (term)};
moo_term_invalidate_content_rect (term, &rect);
}
void moo_term_invalidate_content_rect(MooTerm *term,
GdkRectangle *rect)
{
if (term->priv->changed_content)
gdk_region_union_with_rect (term->priv->changed_content, rect);
else
term->priv->changed_content = gdk_region_rectangle (rect);
}
gboolean moo_term_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
GdkRectangle text_rec = {0, 0, 0, 0};
GdkRegion *text_reg;
MooTerm *term = MOO_TERM (widget);
guint char_width = term->priv->font_info->width;
guint char_height = term->priv->font_info->height;
g_assert (term_top_line (term) <= buf_screen_offset (term->priv->buffer));
text_rec.width = term_width (term) * char_width;
text_rec.height = term_height (term) * char_height;
if (event->area.x + event->area.width >= text_rec.width)
{
gdk_draw_rectangle (widget->window,
term->priv->bg[NORMAL][MOO_TERM_COLOR_MAX], TRUE,
text_rec.width, 0,
char_width,
widget->allocation.height);
}
if (event->area.y + event->area.height >= text_rec.height)
{
gdk_draw_rectangle (widget->window,
term->priv->bg[NORMAL][MOO_TERM_COLOR_MAX], TRUE,
0, text_rec.height,
widget->allocation.width,
char_height);
}
text_reg = gdk_region_rectangle (&text_rec);
gdk_region_intersect (event->region, text_reg);
gdk_region_destroy (text_reg);
if (!gdk_region_empty (event->region))
{
moo_term_update_back_pixmap (term);
gdk_gc_set_clip_region (term->priv->clip,
event->region);
gdk_draw_drawable (event->window,
term->priv->clip,
term->priv->back_pixmap,
0, 0, 0, 0,
text_rec.width,
text_rec.height);
}
return TRUE;
}
/****************************************************************************/
/* Drawing
*/
static void term_draw_range_simple (MooTerm *term,
guint abs_row,
guint start,
guint len,
int selected);
static void term_draw_cells (MooTerm *term,
guint abs_row,
guint start,
guint len,
MooTermTextAttr *attr,
int selected);
static void term_draw_caret (MooTerm *term);
static void term_draw_range (MooTerm *term,
guint abs_row,
guint start,
guint len)
{
TermSelection *sel = term->priv->selection;
int selected;
guint first = start;
guint last = start + len;
g_return_if_fail (len != 0);
g_assert (start + len <= term_width (term));
g_assert (abs_row < buf_total_height (term->priv->buffer));
if (buf_cursor_visible (term->priv->buffer) &&
buf_cursor_row_abs (term->priv->buffer) == abs_row)
{
guint cursor = buf_cursor_col (term->priv->buffer);
if (cursor >= start && cursor < start + len)
{
if (cursor > start)
term_draw_range (term, abs_row,
start, cursor - start);
term_draw_caret (term);
if (cursor < start + len - 1)
term_draw_range (term, abs_row,
cursor + 1, start + len - 1 - cursor);
return;
}
}
selected = term_selection_row_selected (sel, abs_row);
switch (selected)
{
case FULL_SELECTED:
case NOT_SELECTED:
term_draw_range_simple (term, abs_row, first, last, selected);
break;
case PART_SELECTED:
{
guint l_row = sel->l_row;
guint l_col = sel->l_col;
guint r_row = sel->r_row;
guint r_col = sel->r_col;
if (l_row == r_row)
{
g_assert (abs_row == l_row);
if (r_col <= first || last <= l_col)
{
term_draw_range_simple (term, abs_row,
first, last, FALSE);
}
else if (l_col <= first && last <= r_col)
{
term_draw_range_simple (term, abs_row,
first, last, TRUE);
}
else if (first < l_col)
{
term_draw_range_simple (term, abs_row,
first, l_col, FALSE);
term_draw_range_simple (term, abs_row, l_col,
MIN (last, r_col), TRUE);
if (r_col < last)
term_draw_range_simple (term, abs_row,
r_col, last, FALSE);
}
else
{
term_draw_range_simple (term, abs_row, first,
MIN (last, r_col), TRUE);
if (r_col < last)
term_draw_range_simple (term, abs_row,
r_col, last, FALSE);
}
}
else if (l_row == abs_row)
{
if (last <= l_col)
{
term_draw_range_simple (term, abs_row,
first, last, FALSE);
}
else if (l_col <= first)
{
term_draw_range_simple (term, abs_row,
first, last, TRUE);
}
else
{
term_draw_range_simple (term, abs_row,
first, l_col, FALSE);
term_draw_range_simple (term, abs_row,
l_col, last, TRUE);
}
}
else
{
g_assert (abs_row == r_row);
if (last <= r_col)
{
term_draw_range_simple (term, abs_row,
first, last, TRUE);
}
else if (r_col <= first)
{
term_draw_range_simple (term, abs_row,
first, last, FALSE);
}
else {
term_draw_range_simple (term, abs_row,
first, r_col, TRUE);
term_draw_range_simple (term, abs_row,
r_col, last, FALSE);
}
}
break;
}
default:
g_assert_not_reached ();
}
}
static void term_draw_range_simple (MooTerm *term,
guint abs_row,
guint start,
guint len,
gboolean selected)
{
MooTermLine *line = buf_line (term->priv->buffer, abs_row);
guint char_width = term->priv->font_info->width;
guint char_height = term->priv->font_info->height;
int y = (abs_row - term_top_line (term)) * char_height;
g_assert (selected == 0 || selected == 1);
if (start >= line->len)
{
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->bg[selected][MOO_TERM_COLOR_MAX],
TRUE,
start * char_width,
y,
len * char_width,
char_height);
return;
}
else if (start + len > line->len)
{
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->bg[selected][MOO_TERM_COLOR_MAX],
TRUE,
line->len * char_width,
y,
(start + len - line->len) * char_width,
char_height);
len = line->len - start;
}
g_assert (start + len <= line->len);
while (len)
{
guint i;
MooTermTextAttr *attr = &line->data[start].attr;
for (i = 1; i < len && !attr_cmp (attr, &line->data[start + i].attr); ++i) ;
term_draw_cells (term, abs_row, start, i, attr, selected);
len -= i;
start += i;
}
}
static void term_draw_cells (MooTerm *term,
guint abs_row,
guint start,
guint len,
MooTermTextAttr *attr,
gboolean selected)
{
static char buf[8 * MAX_TERMINAL_WIDTH];
guint buf_len;
GdkGC *fg = NULL;
GdkGC *bg = NULL;
MooTermLine *line = buf_line (term->priv->buffer, abs_row);
g_assert (len != 0);
g_assert (start + len <= line->len);
buf_len = term_line_get_chars (line, buf, start, len);
g_return_if_fail (buf_len != 0);
pango_layout_set_text (term->priv->layout, buf, buf_len);
if (attr->mask & MOO_TERM_TEXT_FOREGROUND)
{
g_assert (attr->foreground < MOO_TERM_COLOR_MAX);
fg = term->priv->fg[selected][attr->foreground];
}
if (attr->mask & MOO_TERM_TEXT_BACKGROUND)
{
g_assert (attr->background < MOO_TERM_COLOR_MAX);
bg = term->priv->bg[selected][attr->background];
}
if (!fg)
fg = term->priv->fg[selected][MOO_TERM_COLOR_MAX];
if (!bg)
bg = term->priv->bg[selected][MOO_TERM_COLOR_MAX];
gdk_draw_rectangle (term->priv->back_pixmap,
bg,
TRUE,
start * term->priv->font_info->width,
(abs_row - term_top_line (term)) * term->priv->font_info->height,
len * term->priv->font_info->width,
term->priv->font_info->height);
gdk_draw_layout (term->priv->back_pixmap,
fg,
start * term->priv->font_info->width,
(abs_row - term_top_line (term)) * term->priv->font_info->height,
term->priv->layout);
}
static void term_draw_caret (MooTerm *term)
{
guint screen_width = term_width (term);
guint abs_row = buf_cursor_row_abs (term->priv->buffer);
guint col = buf_cursor_col (term->priv->buffer);
MooTermLine *line = buf_line (term->priv->buffer, abs_row);
TermSelection *sel = term->priv->selection;
char ch[6];
guint ch_len;
int screen_row = abs_row - term_top_line (term);
guint char_width = term->priv->font_info->width;
guint char_height = term->priv->font_info->height;
g_assert (col < screen_width);
if (col < term_line_len (line))
{
ch_len = g_unichar_to_utf8 (line->data[col].ch, ch);
}
else
{
ch[0] = EMPTY_CHAR;
ch_len = 1;
}
pango_layout_set_text (term->priv->layout, ch, ch_len);
switch (term->priv->caret_shape)
{
case CARET_BLOCK:
if (!term_selected (sel, abs_row, col))
{
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->bg[CURSOR][MOO_TERM_COLOR_MAX],
TRUE,
col * char_width,
screen_row * char_height,
char_width,
char_height);
gdk_draw_layout (term->priv->back_pixmap,
term->priv->fg[CURSOR][MOO_TERM_COLOR_MAX],
col * char_width,
screen_row * char_height,
term->priv->layout);
}
else
{
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->bg[CURSOR][MOO_TERM_COLOR_MAX],
FALSE,
col * char_width,
screen_row * char_height,
char_width,
char_height);
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->fg[CURSOR][MOO_TERM_COLOR_MAX],
TRUE,
col * char_width,
screen_row * char_height,
char_width,
char_height);
gdk_draw_layout (term->priv->back_pixmap,
term->priv->bg[CURSOR][MOO_TERM_COLOR_MAX],
col * char_width,
screen_row * char_height,
term->priv->layout);
}
break;
case CARET_UNDERLINE:
if (!term_selected (sel, abs_row, col))
{
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->bg[NORMAL][MOO_TERM_COLOR_MAX],
TRUE,
col * char_width,
screen_row * char_height,
char_width,
char_height);
gdk_draw_layout (term->priv->back_pixmap,
term->priv->fg[NORMAL][MOO_TERM_COLOR_MAX],
col * char_width,
screen_row * char_height,
term->priv->layout);
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->bg[CURSOR][MOO_TERM_COLOR_MAX],
TRUE,
col * char_width,
(screen_row + 1) * char_height - term->priv->caret_height,
char_width,
term->priv->caret_height);
}
else
{
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->bg[SELECTED][MOO_TERM_COLOR_MAX], TRUE,
col * char_width,
screen_row * char_height,
char_width,
char_height);
gdk_draw_layout (term->priv->back_pixmap,
term->priv->fg[SELECTED][MOO_TERM_COLOR_MAX],
col * char_width,
screen_row * char_height,
term->priv->layout);
gdk_draw_rectangle (term->priv->back_pixmap,
term->priv->fg[CURSOR][MOO_TERM_COLOR_MAX],
TRUE,
col * char_width,
(screen_row + 1) * char_height - term->priv->caret_height,
char_width,
term->priv->caret_height);
}
break;
}
}
void moo_term_buf_content_changed(MooTerm *term)
{
MooTermBuffer *buf = term->priv->buffer;
BufRegion *changed = buf_get_changed (buf);
if (changed && !buf_region_empty (changed))
{
GdkRectangle *rect = NULL;
int n_rect, i;
guint top_line = term_top_line (term);
guint screen_offset = buf_screen_offset (buf);
int height = term_height (term);
g_assert (top_line <= screen_offset);
changed = buf_region_copy (changed);
if (top_line != screen_offset)
{
GdkRectangle clip = {0, 0, term_width (term), height};
GdkRegion *tmp;
buf_region_offset (changed, 0, screen_offset - top_line);
tmp = buf_region_rectangle (&clip);
buf_region_intersect (changed, tmp);
buf_region_destroy (tmp);
}
if (gdk_region_empty (changed))
{
gdk_region_destroy (changed);
return;
}
gdk_region_get_rectangles (changed, &rect, &n_rect);
g_return_if_fail (rect != NULL);
if (!term->priv->dirty)
term->priv->dirty = gdk_region_new ();
for (i = 0; i < n_rect; ++i)
{
moo_term_invalidate_content_rect (term, &rect[i]);
rect[i].x *= term->priv->font_info->width;
rect[i].y *= term->priv->font_info->height;
rect[i].width *= term->priv->font_info->width;
rect[i].height *= term->priv->font_info->height;
gdk_region_union_with_rect (term->priv->dirty, &rect[i]);
}
queue_expose (term, NULL);
g_free (rect);
gdk_region_destroy (changed);
}
}