1009 lines
32 KiB
C
1009 lines
32 KiB
C
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is libguac-client-ssh.
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*
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* The Initial Developer of the Original Code is
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* Michael Jumper.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdlib.h>
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#include <string.h>
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#include <guacamole/client.h>
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#include <guacamole/protocol.h>
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#include "common.h"
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#include "types.h"
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#include "display.h"
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const guac_terminal_color guac_terminal_palette[16] = {
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/* Normal colors */
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{0x00, 0x00, 0x00}, /* Black */
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{0x99, 0x3E, 0x3E}, /* Red */
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{0x3E, 0x99, 0x3E}, /* Green */
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{0x99, 0x99, 0x3E}, /* Brown */
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{0x3E, 0x3E, 0x99}, /* Blue */
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{0x99, 0x3E, 0x99}, /* Magenta */
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{0x3E, 0x99, 0x99}, /* Cyan */
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{0x99, 0x99, 0x99}, /* White */
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/* Intense colors */
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{0x3E, 0x3E, 0x3E}, /* Black */
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{0xFF, 0x67, 0x67}, /* Red */
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{0x67, 0xFF, 0x67}, /* Green */
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{0xFF, 0xFF, 0x67}, /* Brown */
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{0x67, 0x67, 0xFF}, /* Blue */
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{0xFF, 0x67, 0xFF}, /* Magenta */
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{0x67, 0xFF, 0xFF}, /* Cyan */
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{0xFF, 0xFF, 0xFF}, /* White */
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};
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/**
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* Clears the currently-selected region, removing the highlight.
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*/
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static void __guac_terminal_display_clear_select(guac_terminal_display* display) {
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guac_socket* socket = display->client->socket;
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guac_layer* select_layer = display->select_layer;
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guac_protocol_send_rect(socket, select_layer, 0, 0, 1, 1);
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guac_protocol_send_cfill(socket, GUAC_COMP_SRC, select_layer,
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0x00, 0x00, 0x00, 0x00);
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guac_socket_flush(socket);
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/* Text is no longer selected */
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display->text_selected =
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display->selection_committed = false;
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}
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/**
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* Returns whether at least one character within the given range is selected.
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*/
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static bool __guac_terminal_display_selected_contains(guac_terminal_display* display,
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int start_row, int start_column, int end_row, int end_column) {
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/* If test range starts after highlight ends, does not intersect */
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if (start_row > display->selection_end_row)
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return false;
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if (start_row == display->selection_end_row
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&& start_column > display->selection_end_column)
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return false;
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/* If test range ends before highlight starts, does not intersect */
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if (end_row < display->selection_start_row)
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return false;
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if (end_row == display->selection_start_row
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&& end_column < display->selection_start_column)
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return false;
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/* Otherwise, does intersect */
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return true;
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}
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/* Maps any codepoint onto a number between 0 and 511 inclusive */
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int __guac_terminal_hash_codepoint(int codepoint) {
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/* If within one byte, just return codepoint */
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if (codepoint <= 0xFF)
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return codepoint;
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/* Otherwise, map to next 256 values */
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return (codepoint & 0xFF) + 0x100;
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}
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/**
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* Returns the location of the given character in the glyph cache layer,
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* sending it first if necessary. The location returned is in characters,
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* and thus must be multiplied by the glyph width to obtain the actual
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* location within the glyph cache layer.
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*/
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int __guac_terminal_get_glyph(guac_terminal_display* display, int codepoint) {
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guac_socket* socket = display->client->socket;
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int location;
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int bytes;
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char utf8[4];
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/* Use foreground color */
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const guac_terminal_color* color =
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&guac_terminal_palette[display->glyph_foreground];
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/* Use background color */
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const guac_terminal_color* background =
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&guac_terminal_palette[display->glyph_background];
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cairo_surface_t* surface;
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cairo_t* cairo;
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PangoLayout* layout;
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/* Get codepoint hash */
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int hashcode = __guac_terminal_hash_codepoint(codepoint);
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/* If something already stored here, either same codepoint or collision */
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if (display->glyphs[hashcode].location) {
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location = display->glyphs[hashcode].location - 1;
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/* If match, return match. */
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if (display->glyphs[hashcode].codepoint == codepoint)
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return location;
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/* Otherwise, reuse location */
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}
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/* If no collision, allocate new glyph location */
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else
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location = display->next_glyph++;
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/* Convert to UTF-8 */
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bytes = guac_terminal_encode_utf8(codepoint, utf8);
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/* Prepare surface */
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surface = cairo_image_surface_create(
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CAIRO_FORMAT_ARGB32,
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display->char_width, display->char_height);
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cairo = cairo_create(surface);
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/* Get layout */
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layout = pango_cairo_create_layout(cairo);
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pango_layout_set_font_description(layout, display->font_desc);
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pango_layout_set_text(layout, utf8, bytes);
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/* Draw */
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cairo_set_source_rgba(cairo,
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color->red / 255.0,
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color->green / 255.0,
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color->blue / 255.0,
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1.0 /* alpha */ );
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cairo_move_to(cairo, 0.0, 0.0);
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pango_cairo_show_layout(cairo, layout);
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/* Free all */
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g_object_unref(layout);
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cairo_destroy(cairo);
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/* Clear existing glyph (if any) */
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guac_protocol_send_rect(socket, display->glyph_stroke,
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location * display->char_width, 0,
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display->char_width, display->char_height);
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guac_protocol_send_cfill(socket, GUAC_COMP_ROUT, display->glyph_stroke,
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0x00, 0x00, 0x00, 0xFF);
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/* Send glyph */
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guac_protocol_send_png(socket, GUAC_COMP_OVER, display->glyph_stroke, location * display->char_width, 0, surface);
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/* Update filled glyphs */
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guac_protocol_send_rect(socket, display->filled_glyphs,
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location * display->char_width, 0,
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display->char_width, display->char_height);
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guac_protocol_send_cfill(socket, GUAC_COMP_OVER, display->filled_glyphs,
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background->red,
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background->green,
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background->blue,
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0xFF);
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guac_protocol_send_copy(socket, display->glyph_stroke,
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location * display->char_width, 0, display->char_width, display->char_height,
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GUAC_COMP_OVER, display->filled_glyphs, location * display->char_width, 0);
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display->glyphs[hashcode].location = location+1;
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display->glyphs[hashcode].codepoint = codepoint;
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cairo_surface_destroy(surface);
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/* Return glyph */
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return location;
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}
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/**
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* Sets the attributes of the glyph cache layer such that future copies from
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* this layer will display as expected.
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*/
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int __guac_terminal_set_colors(guac_terminal_display* display,
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guac_terminal_attributes* attributes) {
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guac_socket* socket = display->client->socket;
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const guac_terminal_color* background_color;
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int background, foreground;
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/* Handle reverse video */
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if (attributes->reverse != attributes->selected) {
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background = attributes->foreground;
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foreground = attributes->background;
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}
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else {
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foreground = attributes->foreground;
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background = attributes->background;
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}
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/* Handle bold */
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if (attributes->bold && foreground <= 7)
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foreground += 8;
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/* Get background color */
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background_color = &guac_terminal_palette[background];
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/* If foreground different from current, colorize */
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if (foreground != display->glyph_foreground) {
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/* Get color */
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const guac_terminal_color* color =
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&guac_terminal_palette[foreground];
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/* Colorize letter */
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guac_protocol_send_rect(socket, display->glyph_stroke,
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0, 0,
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display->char_width * display->next_glyph, display->char_height);
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guac_protocol_send_cfill(socket, GUAC_COMP_ATOP, display->glyph_stroke,
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color->red,
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color->green,
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color->blue,
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255);
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}
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/* If any color change at all, update filled */
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if (foreground != display->glyph_foreground
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|| background != display->glyph_background) {
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/* Set background */
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guac_protocol_send_rect(socket, display->filled_glyphs,
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0, 0,
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display->char_width * display->next_glyph, display->char_height);
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guac_protocol_send_cfill(socket, GUAC_COMP_OVER, display->filled_glyphs,
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background_color->red,
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background_color->green,
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background_color->blue,
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255);
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/* Copy stroke */
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guac_protocol_send_copy(socket, display->glyph_stroke,
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0, 0,
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display->char_width * display->next_glyph, display->char_height,
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GUAC_COMP_OVER, display->filled_glyphs,
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0, 0);
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}
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display->glyph_foreground = foreground;
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display->glyph_background = background;
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return 0;
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}
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/**
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* Sends the given character to the terminal at the given row and column,
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* rendering the charater immediately. This bypasses the guac_terminal_display
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* mechanism and is intended for flushing of updates only.
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*/
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int __guac_terminal_set(guac_terminal_display* display, int row, int col, int codepoint) {
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guac_socket* socket = display->client->socket;
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int location = __guac_terminal_get_glyph(display, codepoint);
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return guac_protocol_send_copy(socket,
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display->filled_glyphs,
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location * display->char_width, 0, display->char_width, display->char_height,
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GUAC_COMP_OVER, GUAC_DEFAULT_LAYER,
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display->char_width * col,
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display->char_height * row);
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}
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guac_terminal_display* guac_terminal_display_alloc(guac_client* client, int foreground, int background) {
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PangoFontMap* font_map;
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PangoFont* font;
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PangoFontMetrics* metrics;
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PangoContext* context;
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/* Allocate display */
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guac_terminal_display* display = malloc(sizeof(guac_terminal_display));
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display->client = client;
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memset(display->glyphs, 0, sizeof(display->glyphs));
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display->glyph_stroke = guac_client_alloc_buffer(client);
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display->filled_glyphs = guac_client_alloc_buffer(client);
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display->select_layer = guac_client_alloc_layer(client);
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/* Get font */
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display->font_desc = pango_font_description_new();
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pango_font_description_set_family(display->font_desc, "monospace");
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pango_font_description_set_weight(display->font_desc, PANGO_WEIGHT_NORMAL);
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pango_font_description_set_size(display->font_desc, 12*PANGO_SCALE);
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font_map = pango_cairo_font_map_get_default();
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context = pango_font_map_create_context(font_map);
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font = pango_font_map_load_font(font_map, context, display->font_desc);
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if (font == NULL) {
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guac_client_log_error(display->client, "Unable to get font.");
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return NULL;
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}
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metrics = pango_font_get_metrics(font, NULL);
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if (metrics == NULL) {
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guac_client_log_error(display->client, "Unable to get font metrics.");
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return NULL;
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}
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display->glyph_foreground = foreground;
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display->glyph_background = background;
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/* Calculate character dimensions */
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display->char_width =
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pango_font_metrics_get_approximate_digit_width(metrics) / PANGO_SCALE;
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display->char_height =
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(pango_font_metrics_get_descent(metrics)
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+ pango_font_metrics_get_ascent(metrics)) / PANGO_SCALE;
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/* Initially empty */
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display->width = 0;
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display->height = 0;
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display->operations = NULL;
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/* Initially nothing selected */
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display->text_selected =
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display->selection_committed = false;
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return display;
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}
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void guac_terminal_display_free(guac_terminal_display* display) {
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/* Free operations buffers */
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free(display->operations);
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/* Free display */
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free(display);
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}
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void guac_terminal_display_copy_columns(guac_terminal_display* display, int row,
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int start_column, int end_column, int offset) {
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int i;
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guac_terminal_operation* src_current;
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guac_terminal_operation* current;
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/* Ignore operations outside display bounds */
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if (row < 0 || row >= display->height)
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return;
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/* Fit range within bounds */
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start_column = guac_terminal_fit_to_range(start_column, 0, display->width - 1);
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end_column = guac_terminal_fit_to_range(end_column, 0, display->width - 1);
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start_column = guac_terminal_fit_to_range(start_column + offset, 0, display->width - 1) - offset;
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end_column = guac_terminal_fit_to_range(end_column + offset, 0, display->width - 1) - offset;
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src_current = &(display->operations[row * display->width + start_column]);
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current = &(display->operations[row * display->width + start_column + offset]);
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/* Move data */
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memmove(current, src_current,
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(end_column - start_column + 1) * sizeof(guac_terminal_operation));
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/* Update operations */
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for (i=start_column; i<=end_column; i++) {
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/* If no operation here, set as copy */
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if (current->type == GUAC_CHAR_NOP) {
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current->type = GUAC_CHAR_COPY;
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current->row = row;
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current->column = i;
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}
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/* Next column */
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current++;
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}
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/* If selection visible and committed, clear if update touches selection */
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if (display->text_selected && display->selection_committed &&
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__guac_terminal_display_selected_contains(display, row, start_column, row, end_column))
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__guac_terminal_display_clear_select(display);
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}
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void guac_terminal_display_copy_rows(guac_terminal_display* display,
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int start_row, int end_row, int offset) {
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int row, col;
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guac_terminal_operation* src_current_row;
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guac_terminal_operation* current_row;
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/* Fit range within bounds */
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start_row = guac_terminal_fit_to_range(start_row, 0, display->height - 1);
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end_row = guac_terminal_fit_to_range(end_row, 0, display->height - 1);
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start_row = guac_terminal_fit_to_range(start_row + offset, 0, display->height - 1) - offset;
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end_row = guac_terminal_fit_to_range(end_row + offset, 0, display->height - 1) - offset;
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src_current_row = &(display->operations[start_row * display->width]);
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current_row = &(display->operations[(start_row + offset) * display->width]);
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/* Move data */
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memmove(current_row, src_current_row,
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(end_row - start_row + 1) * sizeof(guac_terminal_operation) * display->width);
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/* Update operations */
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for (row=start_row; row<=end_row; row++) {
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guac_terminal_operation* current = current_row;
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for (col=0; col<display->width; col++) {
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/* If no operation here, set as copy */
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if (current->type == GUAC_CHAR_NOP) {
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current->type = GUAC_CHAR_COPY;
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current->row = row;
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current->column = col;
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}
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/* Next column */
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current++;
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}
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/* Next row */
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current_row += display->width;
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}
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/* If selection visible and committed, clear if update touches selection */
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if (display->text_selected && display->selection_committed &&
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__guac_terminal_display_selected_contains(display, start_row, 0, end_row, display->width - 1))
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__guac_terminal_display_clear_select(display);
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}
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void guac_terminal_display_set_columns(guac_terminal_display* display, int row,
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int start_column, int end_column, guac_terminal_char* character) {
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int i;
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guac_terminal_operation* current;
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/* Ignore operations outside display bounds */
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if (row < 0 || row >= display->height)
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return;
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/* Fit range within bounds */
|
|
start_column = guac_terminal_fit_to_range(start_column, 0, display->width - 1);
|
|
end_column = guac_terminal_fit_to_range(end_column, 0, display->width - 1);
|
|
|
|
current = &(display->operations[row * display->width + start_column]);
|
|
|
|
/* For each column in range */
|
|
for (i=start_column; i<=end_column; i++) {
|
|
|
|
/* Set operation */
|
|
current->type = GUAC_CHAR_SET;
|
|
current->character = *character;
|
|
|
|
/* Next column */
|
|
current++;
|
|
}
|
|
|
|
/* If selection visible and committed, clear if update touches selection */
|
|
if (display->text_selected && display->selection_committed &&
|
|
__guac_terminal_display_selected_contains(display, row, start_column, row, end_column))
|
|
__guac_terminal_display_clear_select(display);
|
|
|
|
}
|
|
|
|
void guac_terminal_display_resize(guac_terminal_display* display, int width, int height) {
|
|
|
|
guac_terminal_operation* current;
|
|
int x, y;
|
|
|
|
/* Fill with background color (index 0) */
|
|
guac_terminal_char fill = {
|
|
.value = 0,
|
|
.attributes = {
|
|
.foreground = 0,
|
|
.background = 0
|
|
}
|
|
};
|
|
|
|
/* Free old operations buffer */
|
|
if (display->operations != NULL)
|
|
free(display->operations);
|
|
|
|
/* Alloc operations */
|
|
display->operations = malloc(width * height *
|
|
sizeof(guac_terminal_operation));
|
|
|
|
/* Init each operation buffer row */
|
|
current = display->operations;
|
|
for (y=0; y<height; y++) {
|
|
|
|
/* Init entire row to NOP */
|
|
for (x=0; x<width; x++) {
|
|
|
|
/* If on old part of screen, do not clear */
|
|
if (x < display->width && y < display->height)
|
|
current->type = GUAC_CHAR_NOP;
|
|
|
|
/* Otherwise, clear contents first */
|
|
else {
|
|
current->type = GUAC_CHAR_SET;
|
|
current->character = fill;
|
|
}
|
|
|
|
current++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* Set width and height */
|
|
display->width = width;
|
|
display->height = height;
|
|
|
|
/* Send initial display size */
|
|
guac_protocol_send_size(display->client->socket,
|
|
GUAC_DEFAULT_LAYER,
|
|
display->char_width * width,
|
|
display->char_height * height);
|
|
|
|
guac_protocol_send_size(display->client->socket,
|
|
display->select_layer,
|
|
display->char_width * width,
|
|
display->char_height * height);
|
|
|
|
/* If selection visible and committed, clear */
|
|
if (display->text_selected && display->selection_committed)
|
|
__guac_terminal_display_clear_select(display);
|
|
|
|
}
|
|
|
|
void __guac_terminal_display_flush_copy(guac_terminal_display* display) {
|
|
|
|
guac_terminal_operation* current = display->operations;
|
|
int row, col;
|
|
|
|
/* For each operation */
|
|
for (row=0; row<display->height; row++) {
|
|
for (col=0; col<display->width; col++) {
|
|
|
|
/* If operation is a copy operation */
|
|
if (current->type == GUAC_CHAR_COPY) {
|
|
|
|
/* The determined bounds of the rectangle of contiguous
|
|
* operations */
|
|
int detected_right = -1;
|
|
int detected_bottom = row;
|
|
|
|
/* The current row or column within a rectangle */
|
|
int rect_row, rect_col;
|
|
|
|
/* The dimensions of the rectangle as determined */
|
|
int rect_width, rect_height;
|
|
|
|
/* The expected row and column source for the next copy
|
|
* operation (if adjacent to current) */
|
|
int expected_row, expected_col;
|
|
|
|
/* Current row within a subrect */
|
|
guac_terminal_operation* rect_current_row;
|
|
|
|
/* Determine bounds of rectangle */
|
|
rect_current_row = current;
|
|
expected_row = current->row;
|
|
for (rect_row=row; rect_row<display->height; rect_row++) {
|
|
|
|
guac_terminal_operation* rect_current = rect_current_row;
|
|
expected_col = current->column;
|
|
|
|
/* Find width */
|
|
for (rect_col=col; rect_col<display->width; rect_col++) {
|
|
|
|
/* If not identical operation, stop */
|
|
if (rect_current->type != GUAC_CHAR_COPY
|
|
|| rect_current->row != expected_row
|
|
|| rect_current->column != expected_col)
|
|
break;
|
|
|
|
/* Next column */
|
|
rect_current++;
|
|
expected_col++;
|
|
|
|
}
|
|
|
|
/* If too small, cannot append row */
|
|
if (rect_col-1 < detected_right)
|
|
break;
|
|
|
|
/* As row has been accepted, update rect_row of rect */
|
|
detected_bottom = rect_row;
|
|
|
|
/* For now, only set rect_col bound if uninitialized */
|
|
if (detected_right == -1)
|
|
detected_right = rect_col - 1;
|
|
|
|
/* Next row */
|
|
rect_current_row += display->width;
|
|
expected_row++;
|
|
|
|
}
|
|
|
|
/* Calculate dimensions */
|
|
rect_width = detected_right - col + 1;
|
|
rect_height = detected_bottom - row + 1;
|
|
|
|
/* Mark rect as NOP (as it has been handled) */
|
|
rect_current_row = current;
|
|
expected_row = current->row;
|
|
for (rect_row=0; rect_row<rect_height; rect_row++) {
|
|
|
|
guac_terminal_operation* rect_current = rect_current_row;
|
|
expected_col = current->column;
|
|
|
|
for (rect_col=0; rect_col<rect_width; rect_col++) {
|
|
|
|
/* Mark copy operations as NOP */
|
|
if (rect_current->type == GUAC_CHAR_COPY
|
|
&& rect_current->row == expected_row
|
|
&& rect_current->column == expected_col)
|
|
rect_current->type = GUAC_CHAR_NOP;
|
|
|
|
/* Next column */
|
|
rect_current++;
|
|
expected_col++;
|
|
|
|
}
|
|
|
|
/* Next row */
|
|
rect_current_row += display->width;
|
|
expected_row++;
|
|
|
|
}
|
|
|
|
/* Send copy */
|
|
guac_protocol_send_copy(display->client->socket,
|
|
|
|
GUAC_DEFAULT_LAYER,
|
|
current->column * display->char_width,
|
|
current->row * display->char_height,
|
|
rect_width * display->char_width,
|
|
rect_height * display->char_height,
|
|
|
|
GUAC_COMP_OVER,
|
|
GUAC_DEFAULT_LAYER,
|
|
col * display->char_width,
|
|
row * display->char_height);
|
|
|
|
} /* end if copy operation */
|
|
|
|
/* Next operation */
|
|
current++;
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void __guac_terminal_display_flush_clear(guac_terminal_display* display) {
|
|
|
|
guac_terminal_operation* current = display->operations;
|
|
int row, col;
|
|
|
|
/* For each operation */
|
|
for (row=0; row<display->height; row++) {
|
|
for (col=0; col<display->width; col++) {
|
|
|
|
/* If operation is a cler operation (set to space) */
|
|
if (current->type == GUAC_CHAR_SET &&
|
|
!guac_terminal_has_glyph(current->character.value)) {
|
|
|
|
/* The determined bounds of the rectangle of contiguous
|
|
* operations */
|
|
int detected_right = -1;
|
|
int detected_bottom = row;
|
|
|
|
/* The current row or column within a rectangle */
|
|
int rect_row, rect_col;
|
|
|
|
/* The dimensions of the rectangle as determined */
|
|
int rect_width, rect_height;
|
|
|
|
/* Color of the rectangle to draw */
|
|
int color;
|
|
if (current->character.attributes.reverse != current->character.attributes.selected)
|
|
color = current->character.attributes.foreground;
|
|
else
|
|
color = current->character.attributes.background;
|
|
|
|
const guac_terminal_color* guac_color =
|
|
&guac_terminal_palette[color];
|
|
|
|
/* Current row within a subrect */
|
|
guac_terminal_operation* rect_current_row;
|
|
|
|
/* Determine bounds of rectangle */
|
|
rect_current_row = current;
|
|
for (rect_row=row; rect_row<display->height; rect_row++) {
|
|
|
|
guac_terminal_operation* rect_current = rect_current_row;
|
|
|
|
/* Find width */
|
|
for (rect_col=col; rect_col<display->width; rect_col++) {
|
|
|
|
int joining_color;
|
|
if (rect_current->character.attributes.reverse)
|
|
joining_color = current->character.attributes.foreground;
|
|
else
|
|
joining_color = current->character.attributes.background;
|
|
|
|
/* If not identical operation, stop */
|
|
if (rect_current->type != GUAC_CHAR_SET
|
|
|| guac_terminal_has_glyph(rect_current->character.value)
|
|
|| joining_color != color)
|
|
break;
|
|
|
|
/* Next column */
|
|
rect_current++;
|
|
|
|
}
|
|
|
|
/* If too small, cannot append row */
|
|
if (rect_col-1 < detected_right)
|
|
break;
|
|
|
|
/* As row has been accepted, update rect_row of rect */
|
|
detected_bottom = rect_row;
|
|
|
|
/* For now, only set rect_col bound if uninitialized */
|
|
if (detected_right == -1)
|
|
detected_right = rect_col - 1;
|
|
|
|
/* Next row */
|
|
rect_current_row += display->width;
|
|
|
|
}
|
|
|
|
/* Calculate dimensions */
|
|
rect_width = detected_right - col + 1;
|
|
rect_height = detected_bottom - row + 1;
|
|
|
|
/* Mark rect as NOP (as it has been handled) */
|
|
rect_current_row = current;
|
|
for (rect_row=0; rect_row<rect_height; rect_row++) {
|
|
|
|
guac_terminal_operation* rect_current = rect_current_row;
|
|
|
|
for (rect_col=0; rect_col<rect_width; rect_col++) {
|
|
|
|
int joining_color;
|
|
if (rect_current->character.attributes.reverse)
|
|
joining_color = current->character.attributes.foreground;
|
|
else
|
|
joining_color = current->character.attributes.background;
|
|
|
|
/* Mark clear operations as NOP */
|
|
if (rect_current->type == GUAC_CHAR_SET
|
|
&& !guac_terminal_has_glyph(rect_current->character.value)
|
|
&& joining_color == color)
|
|
rect_current->type = GUAC_CHAR_NOP;
|
|
|
|
/* Next column */
|
|
rect_current++;
|
|
|
|
}
|
|
|
|
/* Next row */
|
|
rect_current_row += display->width;
|
|
|
|
}
|
|
|
|
/* Send rect */
|
|
guac_protocol_send_rect(display->client->socket,
|
|
GUAC_DEFAULT_LAYER,
|
|
col * display->char_width,
|
|
row * display->char_height,
|
|
rect_width * display->char_width,
|
|
rect_height * display->char_height);
|
|
|
|
guac_protocol_send_cfill(display->client->socket,
|
|
GUAC_COMP_OVER,
|
|
GUAC_DEFAULT_LAYER,
|
|
guac_color->red, guac_color->green, guac_color->blue,
|
|
0xFF);
|
|
|
|
} /* end if clear operation */
|
|
|
|
/* Next operation */
|
|
current++;
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void __guac_terminal_display_flush_set(guac_terminal_display* display) {
|
|
|
|
guac_terminal_operation* current = display->operations;
|
|
int row, col;
|
|
|
|
/* For each operation */
|
|
for (row=0; row<display->height; row++) {
|
|
for (col=0; col<display->width; col++) {
|
|
|
|
/* Perform given operation */
|
|
if (current->type == GUAC_CHAR_SET) {
|
|
|
|
/* Set attributes */
|
|
__guac_terminal_set_colors(display,
|
|
&(current->character.attributes));
|
|
|
|
/* Send character */
|
|
__guac_terminal_set(display, row, col,
|
|
current->character.value);
|
|
|
|
/* Mark operation as handled */
|
|
current->type = GUAC_CHAR_NOP;
|
|
|
|
}
|
|
|
|
/* Next operation */
|
|
current++;
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void guac_terminal_display_flush(guac_terminal_display* display) {
|
|
|
|
/* Flush operations, copies first, then clears, then sets. */
|
|
__guac_terminal_display_flush_copy(display);
|
|
__guac_terminal_display_flush_clear(display);
|
|
__guac_terminal_display_flush_set(display);
|
|
|
|
}
|
|
|
|
void guac_terminal_display_commit_select(guac_terminal_display* display) {
|
|
display->selection_committed = true;
|
|
}
|
|
|
|
void guac_terminal_display_select(guac_terminal_display* display,
|
|
int start_row, int start_col, int end_row, int end_col) {
|
|
|
|
guac_socket* socket = display->client->socket;
|
|
guac_layer* select_layer = display->select_layer;
|
|
|
|
/* Text is now selected */
|
|
display->text_selected = true;
|
|
|
|
display->selection_start_row = start_row;
|
|
display->selection_start_column = start_col;
|
|
display->selection_end_row = end_row;
|
|
display->selection_end_column = end_col;
|
|
|
|
|
|
/* If single row, just need one rectangle */
|
|
if (start_row == end_row) {
|
|
|
|
/* Ensure proper ordering of columns */
|
|
if (start_col > end_col) {
|
|
int temp = start_col;
|
|
start_col = end_col;
|
|
end_col = temp;
|
|
}
|
|
|
|
/* Select characters between columns */
|
|
guac_protocol_send_rect(socket, select_layer,
|
|
|
|
start_col * display->char_width,
|
|
start_row * display->char_height,
|
|
|
|
(end_col - start_col + 1) * display->char_width,
|
|
display->char_height);
|
|
|
|
}
|
|
|
|
/* Otherwise, need three */
|
|
else {
|
|
|
|
/* Ensure proper ordering of start and end coords */
|
|
if (start_row > end_row) {
|
|
|
|
int temp;
|
|
|
|
temp = start_row;
|
|
start_row = end_row;
|
|
end_row = temp;
|
|
|
|
temp = start_col;
|
|
start_col = end_col;
|
|
end_col = temp;
|
|
|
|
}
|
|
|
|
/* First row */
|
|
guac_protocol_send_rect(socket, select_layer,
|
|
|
|
start_col * display->char_width,
|
|
start_row * display->char_height,
|
|
|
|
display->width * display->char_width,
|
|
display->char_height);
|
|
|
|
/* Middle */
|
|
guac_protocol_send_rect(socket, select_layer,
|
|
|
|
0,
|
|
(start_row + 1) * display->char_height,
|
|
|
|
display->width * display->char_width,
|
|
(end_row - start_row - 1) * display->char_height);
|
|
|
|
/* Last row */
|
|
guac_protocol_send_rect(socket, select_layer,
|
|
|
|
0,
|
|
end_row * display->char_height,
|
|
|
|
(end_col + 1) * display->char_width,
|
|
display->char_height);
|
|
|
|
}
|
|
|
|
/* Draw new selection, erasing old */
|
|
guac_protocol_send_cfill(socket, GUAC_COMP_SRC, select_layer,
|
|
0x00, 0x80, 0xFF, 0x60);
|
|
|
|
guac_socket_flush(socket);
|
|
|
|
}
|
|
|