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Support SGR 2 to dim the foreground colour.

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I've done this on a 'where possible' basis: in Windows paletted mode
(in case anyone is still using an old enough graphics card to need
that!) I simply haven't bothered, and will completely ignore the dim
flag.
This commit is contained in:
Simon Tatham
2017-10-05 21:02:56 +01:00
parent 4743798400
commit 1a718403d4
4 changed files with 67 additions and 29 deletions
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61
unix/gtkwin.c
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@ -3023,24 +3023,44 @@ static void draw_update(struct draw_ctx *dctx, int x, int y, int w, int h)
gtk_widget_queue_draw_area(dctx->inst->area, x, y, w, h);
}
static void draw_set_colour(struct draw_ctx *dctx, int col)
#ifdef DRAW_TEXT_CAIRO
static void cairo_set_source_rgb_dim(cairo_t *cr, double r, double g, double b,
int dim)
{
if (dim)
cairo_set_source_rgb(cr, r * 2 / 3, g * 2 / 3, b * 2 / 3);
else
cairo_set_source_rgb(cr, r, g, b);
}
#endif
static void draw_set_colour(struct draw_ctx *dctx, int col, int dim)
{
#ifdef DRAW_TEXT_GDK
if (dctx->uctx.type == DRAWTYPE_GDK) {
gdk_gc_set_foreground(dctx->uctx.u.gdk.gc, &dctx->inst->cols[col]);
if (dim) {
GdkColor color;
color.red = dctx->inst->cols[col].red * 2 / 3;
color.green = dctx->inst->cols[col].green * 2 / 3;
color.blue = dctx->inst->cols[col].blue * 2 / 3;
gdk_gc_set_rgb_fg_color(dctx->uctx.u.gdk.gc, &color);
} else {
gdk_gc_set_foreground(dctx->uctx.u.gdk.gc, &dctx->inst->cols[col]);
}
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (dctx->uctx.type == DRAWTYPE_CAIRO) {
cairo_set_source_rgb(dctx->uctx.u.cairo.cr,
dctx->inst->cols[col].red / 65535.0,
dctx->inst->cols[col].green / 65535.0,
dctx->inst->cols[col].blue / 65535.0);
cairo_set_source_rgb_dim(dctx->uctx.u.cairo.cr,
dctx->inst->cols[col].red / 65535.0,
dctx->inst->cols[col].green / 65535.0,
dctx->inst->cols[col].blue / 65535.0, dim);
}
#endif
}
static void draw_set_colour_rgb(struct draw_ctx *dctx, optionalrgb orgb)
static void draw_set_colour_rgb(struct draw_ctx *dctx, optionalrgb orgb,
int dim)
{
#ifdef DRAW_TEXT_GDK
if (dctx->uctx.type == DRAWTYPE_GDK) {
@ -3048,13 +3068,19 @@ static void draw_set_colour_rgb(struct draw_ctx *dctx, optionalrgb orgb)
color.red = orgb.r * 256;
color.green = orgb.g * 256;
color.blue = orgb.b * 256;
if (dim) {
color.red = color.red * 2 / 3;
color.green = color.green * 2 / 3;
color.blue = color.blue * 2 / 3;
}
gdk_gc_set_rgb_fg_color(dctx->uctx.u.gdk.gc, &color);
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (dctx->uctx.type == DRAWTYPE_CAIRO)
cairo_set_source_rgb(dctx->uctx.u.cairo.cr,
orgb.r / 255.0, orgb.g / 255.0, orgb.b / 255.0);
if (dctx->uctx.type == DRAWTYPE_CAIRO) {
cairo_set_source_rgb_dim(dctx->uctx.u.cairo.cr, orgb.r / 255.0,
orgb.g / 255.0, orgb.b / 255.0, dim);
}
#endif
}
@ -3238,7 +3264,7 @@ static void draw_backing_rect(struct gui_data *inst)
struct draw_ctx *dctx = get_ctx(inst);
int w = inst->width * inst->font_width + 2*inst->window_border;
int h = inst->height * inst->font_height + 2*inst->window_border;
draw_set_colour(dctx, 258);
draw_set_colour(dctx, 258, FALSE);
draw_rectangle(dctx, 1, 0, 0, w, h);
draw_update(dctx, 0, 0, w, h);
free_ctx(dctx);
@ -3288,6 +3314,7 @@ void do_text_internal(Context ctx, int x, int y, wchar_t *text, int len,
truecolour.fg = truecolour.bg = optionalrgb_none;
nfg = 260;
nbg = 261;
attr &= ~ATTR_DIM; /* don't dim the cursor */
}
fontid = shadow = 0;
@ -3350,18 +3377,18 @@ void do_text_internal(Context ctx, int x, int y, wchar_t *text, int len,
}
if (truecolour.bg.enabled)
draw_set_colour_rgb(dctx, truecolour.bg);
draw_set_colour_rgb(dctx, truecolour.bg, attr & ATTR_DIM);
else
draw_set_colour(dctx, nbg);
draw_set_colour(dctx, nbg, attr & ATTR_DIM);
draw_rectangle(dctx, TRUE,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
rlen*widefactor*inst->font_width, inst->font_height);
if (truecolour.fg.enabled)
draw_set_colour_rgb(dctx, truecolour.fg);
draw_set_colour_rgb(dctx, truecolour.fg, attr & ATTR_DIM);
else
draw_set_colour(dctx, nfg);
draw_set_colour(dctx, nfg, attr & ATTR_DIM);
if (ncombining > 1) {
assert(len == 1);
unifont_draw_combining(&dctx->uctx, inst->fonts[fontid],
@ -3475,7 +3502,7 @@ void do_cursor(Context ctx, int x, int y, wchar_t *text, int len,
* if it's passive.
*/
if (passive) {
draw_set_colour(dctx, 261);
draw_set_colour(dctx, 261, FALSE);
draw_rectangle(dctx, FALSE,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
@ -3514,7 +3541,7 @@ void do_cursor(Context ctx, int x, int y, wchar_t *text, int len,
length = inst->font_height;
}
draw_set_colour(dctx, 261);
draw_set_colour(dctx, 261, FALSE);
if (passive) {
for (i = 0; i < length; i++) {
if (i % 2 == 0) {