Working colors in CSI

protocols/ssh/include/ssh_terminal.h

@@ -91,7 +91,8 @@ ssh_guac_terminal* ssh_guac_terminal_create(guac_client* client);
 void ssh_guac_terminal_free(ssh_guac_terminal* term);
 
 int ssh_guac_terminal_write(ssh_guac_terminal* term, const char* c, int size);
-int ssh_guac_terminal_send_glyph(ssh_guac_terminal* term, int row, int col, char c);
+int ssh_guac_terminal_set(ssh_guac_terminal* term, int row, int col,
+        char c, int foreground, int background);
 
 int ssh_guac_terminal_copy(ssh_guac_terminal* term,
         int src_row, int src_col, int rows, int cols,

protocols/ssh/src/ssh_terminal.c

@@ -123,7 +123,7 @@ ssh_guac_terminal* ssh_guac_terminal_create(guac_client* client) {
 
     /* Clear with background color */
     ssh_guac_terminal_clear(term,
-            0, 0, term->term_width, term->term_height,
+            0, 0, term->term_height, term->term_width,
             term->background);
 
     return term;
@@ -190,17 +190,57 @@ guac_layer* __ssh_guac_terminal_get_glyph(ssh_guac_terminal* term, char c) {
 
 }
 
-int ssh_guac_terminal_send_glyph(ssh_guac_terminal* term, int row, int col, char c) {
+int ssh_guac_terminal_set(ssh_guac_terminal* term, int row, int col,
+        char c, int foreground, int background) {
 
     GUACIO* io = term->client->io;
     guac_layer* glyph = __ssh_guac_terminal_get_glyph(term, c);
 
-    return guac_send_copy(io,
+    /* Get background color */
+    const ssh_guac_terminal_color* background_color =
+        &ssh_guac_terminal_palette[background];
+
+    guac_send_copy(io,
         glyph, 0, 0, term->char_width, term->char_height,
         GUAC_COMP_SRC, GUAC_DEFAULT_LAYER,
         term->char_width * col,
         term->char_height * row);
 
+    /* If foreground different from default, colorize */
+    if (foreground != term->default_foreground) {
+
+        /* Get color */
+        const ssh_guac_terminal_color* color =
+            &ssh_guac_terminal_palette[foreground];
+
+        /* Colorize letter */
+        guac_send_rect(io,
+            GUAC_COMP_ATOP, GUAC_DEFAULT_LAYER,
+
+            term->char_width * col, term->char_height * row,
+            term->char_width,       term->char_height,
+
+            color->red,
+            color->green,
+            color->blue,
+            255);
+
+    }
+
+    /* Set background */
+    guac_send_rect(io,
+        GUAC_COMP_ROVER, GUAC_DEFAULT_LAYER,
+
+        term->char_width * col, term->char_height * row,
+        term->char_width,       term->char_height,
+
+        background_color->red,
+        background_color->green,
+        background_color->blue,
+        255);
+
+    return 0;
+
 }
 
 int ssh_guac_terminal_write(ssh_guac_terminal* term, const char* c, int size) {

protocols/ssh/src/ssh_terminal_handlers.c

@@ -88,10 +88,10 @@ int ssh_guac_terminal_echo(ssh_guac_terminal* term, char c) {
 
         /* Displayable chars */
         default:
-            ssh_guac_terminal_send_glyph(term,
+            ssh_guac_terminal_set(term,
                     term->cursor_row,
                     term->cursor_col,
-                    c);
+                    c, term->foreground, term->background);
 
             /* Advance cursor */
             term->cursor_col++;
@@ -158,6 +158,8 @@ int ssh_guac_terminal_csi(ssh_guac_terminal* term, char c) {
     /* Any non-digit stops the parameter, and possibly the sequence */
     else {
 
+        int i;
+
         /* At most 16 parameters */
         if (argc < 16) {
 
@@ -173,6 +175,34 @@ int ssh_guac_terminal_csi(ssh_guac_terminal* term, char c) {
         /* Handle CSI functions */ 
         switch (c) {
 
+            /* m: Set graphics rendition */
+            case 'm':
+
+                for (i=0; i<argc; i++) {
+
+                    int value = argv[i];
+
+                    /* Reset attributes */
+                    if (value == 0) {
+                        term->foreground = term->default_foreground;
+                        term->background = term->default_background;
+                    }
+
+                    /* Foreground */
+                    else if (value >= 30 && value <= 37)
+                        term->foreground = value - 30;
+
+                    /* Background */
+                    else if (value >= 40 && value <= 47)
+                        term->background = value - 40;
+
+                    else
+                        guac_log_info("Unhandled graphics rendition: %i", value);
+
+                }
+
+                break;
+
             /* H: Move cursor */
             case 'H':
                 term->cursor_row = argv[0] - 1;