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-rw-r--r--widgets/e-text.c387
1 files changed, 261 insertions, 126 deletions
diff --git a/widgets/e-text.c b/widgets/e-text.c
index bfff8e251a..b33e99194d 100644
--- a/widgets/e-text.c
+++ b/widgets/e-text.c
@@ -72,7 +72,9 @@ enum {
ARG_TEXT_HEIGHT,
ARG_EDITABLE,
ARG_USE_ELLIPSIS,
- ARG_ELLIPSIS
+ ARG_ELLIPSIS,
+ ARG_LINE_WRAP,
+ ARG_MAX_LINES
};
@@ -243,6 +245,10 @@ e_text_class_init (ETextClass *klass)
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_USE_ELLIPSIS);
gtk_object_add_arg_type ("EText::ellipsis",
GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_ELLIPSIS);
+ gtk_object_add_arg_type ("EText::line_wrap",
+ GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_LINE_WRAP);
+ gtk_object_add_arg_type ("EText::max_lines",
+ GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_MAX_LINES);
if (!clipboard_atom)
clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);
@@ -314,6 +320,9 @@ e_text_init (EText *text)
text->pointer_in = FALSE;
text->default_cursor_shown = TRUE;
+
+ text->line_wrap = FALSE;
+ text->max_lines = -1;
}
/* Destroy handler for the text item */
@@ -619,6 +628,10 @@ split_into_lines (EText *text)
char *p;
struct line *lines;
int len;
+ int line_num;
+ char *laststart;
+ char *lastend;
+ char *linestart;
/* Free old array of lines */
@@ -633,31 +646,116 @@ split_into_lines (EText *text)
/* First, count the number of lines */
- for (p = text->text; *p; p++)
- if (*p == '\n')
- text->num_lines++;
+ lastend = text->text;
+ laststart = text->text;
+ linestart = text->text;
+
+ for (p = text->text; *p; p++) {
+ if (text->line_wrap && (*p == ' ' || *p == '\n')) {
+ if ( laststart != lastend
+ && gdk_text_width(text->font,
+ linestart,
+ p - linestart)
+ > text->clip_width ) {
+ text->num_lines ++;
+ linestart = laststart;
+ laststart = p + 1;
+ lastend = p;
+ } else if (*p == ' ') {
+ laststart = p + 1;
+ lastend = p;
+ }
+ }
+ if (*p == '\n') {
+ text->num_lines ++;
+ lastend = p + 1;
+ laststart = p + 1;
+ linestart = p + 1;
+ }
+ }
+
+ if (text->line_wrap) {
+ if ( laststart != lastend
+ && gdk_text_width(text->font,
+ linestart,
+ p - linestart)
+ > text->clip_width ) {
+ text->num_lines ++;
+ }
+ }
text->num_lines++;
+ if ( (!text->editing) && text->max_lines != -1 && text->num_lines > text->max_lines ) {
+ text->num_lines = text->max_lines;
+ }
+
/* Allocate array of lines and calculate split positions */
text->lines = lines = g_new0 (struct line, text->num_lines);
len = 0;
+ line_num = 1;
+ lastend = text->text;
+ laststart = text->text;
- for (p = text->text; *p; p++) {
+ for (p = text->text; line_num < text->num_lines && *p; p++) {
+ gboolean handled = FALSE;
if (len == 0)
lines->text = p;
+ if (text->line_wrap && (*p == ' ' || *p == '\n')) {
+ if ( gdk_text_width(text->font,
+ lines->text,
+ p - lines->text)
+ > text->clip_width
+ && laststart != lastend ) {
+ lines->length = lastend - lines->text;
+ lines++;
+ line_num ++;
+ len = p - laststart;
+ lines->text = laststart;
+ laststart = p + 1;
+ lastend = p;
+ } else if (*p == ' ') {
+ laststart = p + 1;
+ lastend = p;
+ len ++;
+ }
+ handled = TRUE;
+ }
+ if ( line_num >= text->num_lines )
+ break;
if (*p == '\n') {
- lines->length = len;
+ lines->length = p - lines->text;
lines++;
+ line_num ++;
len = 0;
- } else
+ lastend = p + 1;
+ laststart = p + 1;
+ handled = TRUE;
+ }
+ if (!handled)
len++;
}
+ if ( line_num < text->num_lines && text->line_wrap ) {
+ if ( gdk_text_width(text->font,
+ lines->text,
+ p - lines->text)
+ > text->clip_width
+ && laststart != lastend ) {
+ lines->length = lastend - lines->text;
+ lines++;
+ line_num ++;
+ len = p - laststart;
+ lines->text = laststart;
+ laststart = p + 1;
+ lastend = p;
+ }
+ }
+
if (len == 0)
lines->text = p;
- lines->length = len;
+ lines->length = strlen(lines->text);
calc_line_widths (text);
}
@@ -746,7 +844,10 @@ e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
}
calc_ellipsis (text);
- calc_line_widths (text);
+ if ( text->line_wrap )
+ split_into_lines (text);
+ else
+ calc_line_widths (text);
recalc_bounds (text);
break;
@@ -764,7 +865,10 @@ e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
}
calc_ellipsis (text);
- calc_line_widths (text);
+ if ( text->line_wrap )
+ split_into_lines (text);
+ else
+ calc_line_widths (text);
recalc_bounds (text);
break;
@@ -782,7 +886,10 @@ e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
text->suckfont = e_suck_font (text->font);
}
calc_ellipsis (text);
- calc_line_widths (text);
+ if ( text->line_wrap )
+ split_into_lines (text);
+ else
+ calc_line_widths (text);
recalc_bounds (text);
break;
@@ -798,7 +905,10 @@ e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
case ARG_CLIP_WIDTH:
text->clip_width = fabs (GTK_VALUE_DOUBLE (*arg));
calc_ellipsis (text);
- calc_line_widths (text);
+ if ( text->line_wrap )
+ split_into_lines (text);
+ else
+ calc_line_widths (text);
recalc_bounds (text);
break;
@@ -810,7 +920,10 @@ e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
case ARG_CLIP:
text->clip = GTK_VALUE_BOOL (*arg);
calc_ellipsis (text);
- calc_line_widths (text);
+ if ( text->line_wrap )
+ split_into_lines (text);
+ else
+ calc_line_widths (text);
recalc_bounds (text);
break;
@@ -879,6 +992,18 @@ e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
recalc_bounds (text);
break;
+ case ARG_LINE_WRAP:
+ text->line_wrap = GTK_VALUE_BOOL (*arg);
+ split_into_lines (text);
+ recalc_bounds (text);
+ break;
+
+ case ARG_MAX_LINES:
+ text->max_lines = GTK_VALUE_INT (*arg);
+ split_into_lines (text);
+ recalc_bounds (text);
+ break;
+
default:
break;
}
@@ -985,6 +1110,14 @@ e_text_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
GTK_VALUE_STRING (*arg) = g_strdup (text->ellipsis);
break;
+ case ARG_LINE_WRAP:
+ GTK_VALUE_BOOL (*arg) = text->line_wrap;
+ break;
+
+ case ARG_MAX_LINES:
+ GTK_VALUE_INT (*arg) = text->max_lines;
+ break;
+
default:
arg->type = GTK_TYPE_INVALID;
break;
@@ -1216,120 +1349,118 @@ e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
gnome_canvas_set_stipple_origin (item->canvas, text->gc);
for (i = 0; i < text->num_lines; i++) {
- if (lines->length != 0) {
- xpos = get_line_xpos (text, lines);
- if (text->editing) {
- xpos -= text->xofs_edit;
- start_char = lines->text - text->text;
- end_char = start_char + lines->length;
- sel_start = text->selection_start;
- sel_end = text->selection_end;
- if (sel_start > sel_end ) {
- sel_start ^= sel_end;
- sel_end ^= sel_start;
- sel_start ^= sel_end;
- }
- if ( sel_start < start_char )
- sel_start = start_char;
- if ( sel_end > end_char )
- sel_end = end_char;
- if ( sel_start < sel_end ) {
- sel_rect.x = xpos - x + gdk_text_width (text->font,
- lines->text,
- sel_start - start_char);
- sel_rect.y = ypos - y - text->font->ascent;
- sel_rect.width = gdk_text_width (text->font,
- lines->text + sel_start - start_char,
- sel_end - sel_start);
- sel_rect.height = text->font->ascent + text->font->descent;
- gtk_paint_flat_box(GTK_WIDGET(item->canvas)->style,
- drawable,
- text->has_selection ?
- GTK_STATE_SELECTED :
- GTK_STATE_ACTIVE,
- GTK_SHADOW_NONE,
- clip_rect,
- GTK_WIDGET(item->canvas),
- "text",
- sel_rect.x,
- sel_rect.y,
- sel_rect.width,
- sel_rect.height);
- gdk_draw_text (drawable,
- text->font,
- text->gc,
- xpos - x,
- ypos - y,
- lines->text,
- sel_start - start_char);
- gdk_draw_text (drawable,
- text->font,
- fg_gc,
- xpos - x + gdk_text_width (text->font,
- lines->text,
- sel_start - start_char),
- ypos - y,
- lines->text + sel_start - start_char,
- sel_end - sel_start);
- gdk_draw_text (drawable,
- text->font,
- text->gc,
- xpos - x + gdk_text_width (text->font,
- lines->text,
- sel_end - start_char),
- ypos - y,
- lines->text + sel_end - start_char,
- end_char - sel_end);
- } else {
- gdk_draw_text (drawable,
- text->font,
- text->gc,
- xpos - x,
- ypos - y,
- lines->text,
- lines->length);
- }
- if (text->selection_start == text->selection_end &&
- text->selection_start >= start_char &&
- text->selection_start <= end_char &&
- text->show_cursor) {
- gdk_draw_rectangle (drawable,
- text->gc,
- TRUE,
- xpos - x + gdk_text_width (text->font,
- lines->text,
- sel_start - start_char),
- ypos - y - text->font->ascent,
- 1,
- text->font->ascent + text->font->descent);
- }
+ xpos = get_line_xpos (text, lines);
+ if (text->editing) {
+ xpos -= text->xofs_edit;
+ start_char = lines->text - text->text;
+ end_char = start_char + lines->length;
+ sel_start = text->selection_start;
+ sel_end = text->selection_end;
+ if (sel_start > sel_end ) {
+ sel_start ^= sel_end;
+ sel_end ^= sel_start;
+ sel_start ^= sel_end;
+ }
+ if ( sel_start < start_char )
+ sel_start = start_char;
+ if ( sel_end > end_char )
+ sel_end = end_char;
+ if ( sel_start < sel_end ) {
+ sel_rect.x = xpos - x + gdk_text_width (text->font,
+ lines->text,
+ sel_start - start_char);
+ sel_rect.y = ypos - y - text->font->ascent;
+ sel_rect.width = gdk_text_width (text->font,
+ lines->text + sel_start - start_char,
+ sel_end - sel_start);
+ sel_rect.height = text->font->ascent + text->font->descent;
+ gtk_paint_flat_box(GTK_WIDGET(item->canvas)->style,
+ drawable,
+ text->has_selection ?
+ GTK_STATE_SELECTED :
+ GTK_STATE_ACTIVE,
+ GTK_SHADOW_NONE,
+ clip_rect,
+ GTK_WIDGET(item->canvas),
+ "text",
+ sel_rect.x,
+ sel_rect.y,
+ sel_rect.width,
+ sel_rect.height);
+ gdk_draw_text (drawable,
+ text->font,
+ text->gc,
+ xpos - x,
+ ypos - y,
+ lines->text,
+ sel_start - start_char);
+ gdk_draw_text (drawable,
+ text->font,
+ fg_gc,
+ xpos - x + gdk_text_width (text->font,
+ lines->text,
+ sel_start - start_char),
+ ypos - y,
+ lines->text + sel_start - start_char,
+ sel_end - sel_start);
+ gdk_draw_text (drawable,
+ text->font,
+ text->gc,
+ xpos - x + gdk_text_width (text->font,
+ lines->text,
+ sel_end - start_char),
+ ypos - y,
+ lines->text + sel_end - start_char,
+ end_char - sel_end);
} else {
- if ( text->clip && text->use_ellipsis && lines->ellipsis_length < lines->length) {
- gdk_draw_text (drawable,
- text->font,
- text->gc,
- xpos - x,
- ypos - y,
- lines->text,
- lines->ellipsis_length);
- gdk_draw_text (drawable,
- text->font,
- text->gc,
- xpos - x +
- lines->width - text->ellipsis_width,
- ypos - y,
- text->ellipsis ? text->ellipsis : "...",
- text->ellipsis ? strlen (text->ellipsis) : 3);
- } else
-
- gdk_draw_text (drawable,
- text->font,
- text->gc,
- xpos - x,
- ypos - y,
- lines->text,
- lines->length);
+ gdk_draw_text (drawable,
+ text->font,
+ text->gc,
+ xpos - x,
+ ypos - y,
+ lines->text,
+ lines->length);
+ }
+ if (text->selection_start == text->selection_end &&
+ text->selection_start >= start_char &&
+ text->selection_start <= end_char &&
+ text->show_cursor) {
+ gdk_draw_rectangle (drawable,
+ text->gc,
+ TRUE,
+ xpos - x + gdk_text_width (text->font,
+ lines->text,
+ sel_start - start_char),
+ ypos - y - text->font->ascent,
+ 1,
+ text->font->ascent + text->font->descent);
}
+ } else {
+ if ( text->clip && text->use_ellipsis && lines->ellipsis_length < lines->length) {
+ gdk_draw_text (drawable,
+ text->font,
+ text->gc,
+ xpos - x,
+ ypos - y,
+ lines->text,
+ lines->ellipsis_length);
+ gdk_draw_text (drawable,
+ text->font,
+ text->gc,
+ xpos - x +
+ lines->width - text->ellipsis_width,
+ ypos - y,
+ text->ellipsis ? text->ellipsis : "...",
+ text->ellipsis ? strlen (text->ellipsis) : 3);
+ } else
+
+ gdk_draw_text (drawable,
+ text->font,
+ text->gc,
+ xpos - x,
+ ypos - y,
+ lines->text,
+ lines->length);
}
ypos += text->font->ascent + text->font->descent;
@@ -1741,7 +1872,11 @@ e_text_event (GnomeCanvasItem *item, GdkEvent *event)
text->timer = NULL;
}
}
- calc_line_widths (text);
+ if ( text->line_wrap )
+ split_into_lines (text);
+ else
+ calc_line_widths (text);
+ recalc_bounds (text);
}
return_val = 0;
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 07:35:07 +0800