*restartitem;
GtkWidget *sessionsmenu;
#ifndef NO_BACKING_PIXMAPS
+ /*
+ * Server-side pixmap which we use to cache the terminal window's
+ * contents. When we draw text in the terminal, we draw it to this
+ * pixmap first, and then blit from there to the actual window;
+ * this way, X expose events can be handled with an absolute
+ * minimum of network traffic, by just sending a command to
+ * re-blit an appropriate rectangle from this pixmap.
+ */
GdkPixmap *pixmap;
#endif
+#ifdef DRAW_TEXT_CAIRO
+ /*
+ * If we're drawing using Cairo, we cache the same image on the
+ * client side in a Cairo surface.
+ *
+ * In GTK2+Cairo, this happens _as well_ as having the server-side
+ * pixmap cache above; in GTK3+Cairo, server-side pixmaps are
+ * deprecated, so we _just_ have this client-side cache. In the
+ * latter case that means we have to transmit a big wodge of
+ * bitmap data over the X connection on every expose event; but
+ * GTK3 apparently deliberately provides no way to avoid that
+ * inefficiency, and at least this way we don't _also_ have to
+ * redo any font rendering just because the window was temporarily
+ * covered.
+ */
+ cairo_surface_t *surface;
+#endif
#if GTK_CHECK_VERSION(2,0,0)
GtkIMContext *imc;
#endif
int ngtkargs;
guint32 input_event_time; /* Timestamp of the most recent input event. */
int reconfiguring;
+#if GTK_CHECK_VERSION(3,4,0)
+ gdouble cumulative_scroll;
+#endif
/* Cached things out of conf that we refer to a lot */
int bold_style;
int window_border;
need_size = 1;
}
+ {
+ int backing_w = w * inst->font_width + 2*inst->window_border;
+ int backing_h = h * inst->font_height + 2*inst->window_border;
+
#ifndef NO_BACKING_PIXMAPS
- if (inst->pixmap) {
- gdk_pixmap_unref(inst->pixmap);
- inst->pixmap = NULL;
- }
+ if (inst->pixmap) {
+ gdk_pixmap_unref(inst->pixmap);
+ inst->pixmap = NULL;
+ }
- inst->pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
- (w * inst->font_width + 2*inst->window_border),
- (h * inst->font_height + 2*inst->window_border), -1);
+ inst->pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
+ backing_w, backing_h, -1);
#endif
+#ifdef DRAW_TEXT_CAIRO
+ if (inst->surface) {
+ cairo_surface_destroy(inst->surface);
+ inst->surface = NULL;
+ }
+
+ inst->surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
+ backing_w, backing_h);
+#endif
+ }
+
draw_backing_rect(inst);
if (need_size && inst->term) {
{
struct gui_data *inst = (struct gui_data *)data;
- if (inst->term) {
- struct draw_ctx adctx, *dctx = &adctx;
+ /*
+ * GTK3 window redraw: we always expect Cairo to be enabled, so
+ * that inst->surface exists, and pixmaps to be disabled, so that
+ * inst->pixmap does not exist. Hence, we just blit from
+ * inst->surface to the window.
+ */
+ if (inst->surface) {
GdkRectangle dirtyrect;
- dctx->inst = inst;
- dctx->uctx.type = DRAWTYPE_CAIRO;
- dctx->uctx.u.cairo.widget = widget;
- dctx->uctx.u.cairo.cr = cr;
- cairo_setup_dctx(dctx);
-
gdk_cairo_get_clip_rectangle(cr, &dirtyrect);
- /*
- * As in window.c, we clear the 'immediately' flag in the
- * term_paint() call if the terminal has an update pending, in
- * case we're constrained within this event to only draw on
- * the exposed rectangle of the window. (Because if the whole
- * of a character cell needs a redraw due to a terminal
- * contents change, the last thing we want is to give it a
- * _partial_ redraw here due to system-imposed clipping, and
- * then have the next main terminal update believe it's been
- * redrawn in full.)
- *
- * I don't actually know if GTK draw events will constrain us
- * in this way, but it's best to be careful...
- */
- term_paint(inst->term, dctx,
- (dirtyrect.x - inst->window_border) / inst->font_width,
- (dirtyrect.y - inst->window_border) / inst->font_height,
- (dirtyrect.x + dirtyrect.width -
- inst->window_border) / inst->font_width,
- (dirtyrect.y + dirtyrect.height -
- inst->window_border) / inst->font_height,
- !inst->term->window_update_pending);
+ cairo_set_source_surface(cr, inst->surface, 0, 0);
+ cairo_rectangle(cr, dirtyrect.x, dirtyrect.y,
+ dirtyrect.width, dirtyrect.height);
+ cairo_fill(cr);
}
return TRUE;
#ifndef NO_BACKING_PIXMAPS
/*
- * Pass the exposed rectangle to terminal.c, which will call us
- * back to do the actual painting.
+ * Draw to the exposed part of the window from the server-side
+ * backing pixmap.
*/
if (inst->pixmap) {
gdk_draw_pixmap(gtk_widget_get_window(widget),
event->area.width, event->area.height);
}
#else
- if (inst->term) {
- Context ctx = get_ctx(inst);
- term_paint(inst->term, ctx,
- (event->area.x - inst->window_border) / inst->font_width,
- (event->area.y - inst->window_border) / inst->font_height,
- (event->area.x + event->area.width -
- inst->window_border) / inst->font_width,
- (event->area.y + event->area.height -
- inst->window_border) / inst->font_height,
- !inst->term->window_update_pending);
- free_ctx(ctx);
+ /*
+ * Failing that, draw from the client-side Cairo surface. (We
+ * should never be compiled in a context where we have _neither_
+ * inst->surface nor inst->pixmap.)
+ */
+ if (inst->surface) {
+ cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget));
+ cairo_set_source_surface(cr, inst->surface, 0, 0);
+ cairo_rectangle(cr, event->area.x, event->area.y,
+ event->area.width, event->area.height);
+ cairo_fill(cr);
+ cairo_destroy(cr);
}
#endif
}
if (event->type == GDK_KEY_PRESS) {
- /*
- * NYI: Compose key (!!! requires Unicode faff before even trying)
- */
-
/*
* If Alt has just been pressed, we start potentially
* accumulating an Alt+numberpad code. We do this by
}
#endif
+#define SCROLL_INCREMENT_LINES 5
+
+#if GTK_CHECK_VERSION(3,4,0)
+gboolean scroll_internal(struct gui_data *inst, gdouble delta, guint state,
+ gdouble ex, gdouble ey)
+{
+ int shift, ctrl, alt, x, y, raw_mouse_mode;
+
+ show_mouseptr(inst, 1);
+
+ shift = state & GDK_SHIFT_MASK;
+ ctrl = state & GDK_CONTROL_MASK;
+ alt = state & inst->meta_mod_mask;
+
+ x = (ex - inst->window_border) / inst->font_width;
+ y = (ey - inst->window_border) / inst->font_height;
+
+ raw_mouse_mode =
+ send_raw_mouse && !(shift && conf_get_int(inst->conf,
+ CONF_mouse_override));
+
+ inst->cumulative_scroll += delta * SCROLL_INCREMENT_LINES;
+
+ if (!raw_mouse_mode) {
+ int scroll_lines = (int)inst->cumulative_scroll; /* rounds toward 0 */
+ if (scroll_lines) {
+ term_scroll(inst->term, 0, scroll_lines);
+ inst->cumulative_scroll -= scroll_lines;
+ }
+ return TRUE;
+ } else {
+ int scroll_events = (int)(inst->cumulative_scroll /
+ SCROLL_INCREMENT_LINES);
+ if (scroll_events) {
+ int button;
+
+ inst->cumulative_scroll -= scroll_events * SCROLL_INCREMENT_LINES;
+
+ if (scroll_events > 0) {
+ button = MBT_WHEEL_DOWN;
+ } else {
+ button = MBT_WHEEL_UP;
+ scroll_events = -scroll_events;
+ }
+
+ while (scroll_events-- > 0) {
+ term_mouse(inst->term, button, translate_button(button),
+ MA_CLICK, x, y, shift, ctrl, alt);
+ }
+ }
+ return TRUE;
+ }
+}
+#endif
+
gboolean button_internal(struct gui_data *inst, guint32 timestamp,
GdkEventType type, guint ebutton, guint state,
gdouble ex, gdouble ey)
if (!raw_mouse_mode) {
if (ebutton == 4 && type == GDK_BUTTON_PRESS) {
- term_scroll(inst->term, 0, -5);
+ term_scroll(inst->term, 0, -SCROLL_INCREMENT_LINES);
return TRUE;
}
if (ebutton == 5 && type == GDK_BUTTON_PRESS) {
- term_scroll(inst->term, 0, +5);
+ term_scroll(inst->term, 0, +SCROLL_INCREMENT_LINES);
return TRUE;
}
}
gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data)
{
struct gui_data *inst = (struct gui_data *)data;
- guint button;
+#if GTK_CHECK_VERSION(3,4,0)
+ gdouble dx, dy;
+ if (gdk_event_get_scroll_deltas((GdkEvent *)event, &dx, &dy)) {
+ return scroll_internal(inst, dy, event->state, event->x, event->y);
+ } else
+ return FALSE;
+#else
+ guint button;
if (event->direction == GDK_SCROLL_UP)
button = 4;
else if (event->direction == GDK_SCROLL_DOWN)
return button_internal(inst, event->time, GDK_BUTTON_PRESS,
button, event->state, event->x, event->y);
+#endif
}
#endif
int char_width(Context ctx, int uc)
{
/*
- * Under X, any fixed-width font really _is_ fixed-width.
- * Double-width characters will be dealt with using a separate
- * font. For the moment we can simply return 1.
- *
- * FIXME: but is that also true of Pango?
+ * In this front end, double-width characters are handled using a
+ * separate font, so this can safely just return 1 always.
*/
return 1;
}
{
struct gui_data *inst = (struct gui_data *)frontend;
struct draw_ctx *dctx;
- GdkWindow *target;
if (!gtk_widget_get_window(inst->area))
return NULL;
-#ifndef NO_BACKING_PIXMAPS
- target = inst->pixmap;
-#else
- target = gtk_widget_get_window(inst->area);
-#endif
-
dctx = snew(struct draw_ctx);
dctx->inst = inst;
dctx->uctx.type = inst->drawtype;
#ifdef DRAW_TEXT_GDK
if (dctx->uctx.type == DRAWTYPE_GDK) {
- dctx->uctx.u.gdk.target = target;
+ /* If we're doing GDK-based drawing, then we also expect
+ * inst->pixmap to exist. */
+ dctx->uctx.u.gdk.target = inst->pixmap;
dctx->uctx.u.gdk.gc = gdk_gc_new(gtk_widget_get_window(inst->area));
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (dctx->uctx.type == DRAWTYPE_CAIRO) {
dctx->uctx.u.cairo.widget = GTK_WIDGET(inst->area);
- dctx->uctx.u.cairo.cr = gdk_cairo_create(target);
+ /* If we're doing Cairo drawing, we expect inst->surface to
+ * exist, and we draw to that first, regardless of whether we
+ * subsequently copy the results to inst->pixmap. */
+ dctx->uctx.u.cairo.cr = cairo_create(inst->surface);
cairo_setup_dctx(dctx);
}
#endif
static void draw_update(struct draw_ctx *dctx, int x, int y, int w, int h)
{
-#ifndef NO_BACKING_PIXMAPS
-#ifdef DRAW_TEXT_GDK
- if (dctx->uctx.type == DRAWTYPE_GDK) {
- gdk_draw_pixmap(gtk_widget_get_window(dctx->inst->area),
- dctx->uctx.u.gdk.gc, dctx->inst->pixmap,
- x, y, x, y, w, h);
- }
-#endif
-#ifdef DRAW_TEXT_CAIRO /* FIXME: and not GTK3 where a cairo_t is all we have */
+#if defined DRAW_TEXT_CAIRO && !defined NO_BACKING_PIXMAPS
if (dctx->uctx.type == DRAWTYPE_CAIRO) {
- GdkGC *gc = gdk_gc_new(gtk_widget_get_window(dctx->inst->area));
- gdk_draw_pixmap(gtk_widget_get_window(dctx->inst->area),
- gc, dctx->inst->pixmap, x, y, x, y, w, h);
- gdk_gc_unref(gc);
+ /*
+ * If inst->surface and inst->pixmap both exist, then we've
+ * just drawn new content to the former which we must copy to
+ * the latter.
+ */
+ cairo_t *cr = gdk_cairo_create(dctx->inst->pixmap);
+ cairo_set_source_surface(cr, dctx->inst->surface, 0, 0);
+ cairo_rectangle(cr, x, y, w, h);
+ cairo_fill(cr);
+ cairo_destroy(cr);
}
#endif
-#endif
+
+ /*
+ * Now we just queue a window redraw, which will cause
+ * inst->surface or inst->pixmap (whichever is appropriate for our
+ * compile mode) to be copied to the real window when we receive
+ * the resulting "expose" or "draw" event.
+ *
+ * Amazingly, this one API call is actually valid in all versions
+ * of GTK :-)
+ */
+ gtk_widget_queue_draw_area(dctx->inst->area, x, y, w, h);
}
static void draw_set_colour(struct draw_ctx *dctx, int col)
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_rectangle(dctx, 1, 0, 0,
- inst->width * inst->font_width + 2*inst->window_border,
- inst->height * inst->font_height + 2*inst->window_border);
+ draw_rectangle(dctx, 1, 0, 0, w, h);
+ draw_update(dctx, 0, 0, w, h);
free_ctx(dctx);
}
{
struct draw_ctx *dctx = (struct draw_ctx *)ctx;
struct gui_data *inst = dctx->inst;
- int ncombining, combining;
+ int ncombining;
int nfg, nbg, t, fontid, shadow, rlen, widefactor, bold;
int monochrome =
gdk_visual_get_depth(gtk_widget_get_visual(inst->area)) == 1;
rlen*widefactor*inst->font_width, inst->font_height);
draw_set_colour(dctx, nfg);
- for (combining = 0; combining < ncombining; combining++) {
+ if (ncombining > 1) {
+ assert(len == 1);
+ unifont_draw_combining(&dctx->uctx, inst->fonts[fontid],
+ x*inst->font_width+inst->window_border,
+ (y*inst->font_height+inst->window_border+
+ inst->fonts[0]->ascent),
+ text, ncombining, widefactor > 1,
+ bold, inst->font_width);
+ } else {
unifont_draw_text(&dctx->uctx, inst->fonts[fontid],
x*inst->font_width+inst->window_border,
- y*inst->font_height+inst->window_border+inst->fonts[0]->ascent,
- text + combining, len, widefactor > 1,
+ (y*inst->font_height+inst->window_border+
+ inst->fonts[0]->ascent),
+ text, len, widefactor > 1,
bold, inst->font_width);
}
inst->quit_fn_scheduled = FALSE;
inst->idle_fn_scheduled = FALSE;
inst->drawtype = DRAWTYPE_DEFAULT;
+#if GTK_CHECK_VERSION(3,4,0)
+ inst->cumulative_scroll = 0.0;
+#endif
/* defer any child exit handling until we're ready to deal with
* it */
init_clipboard(inst);
+ set_geom_hints(inst);
+
+#if GTK_CHECK_VERSION(3,0,0)
+ gtk_window_set_default_geometry(GTK_WINDOW(inst->window),
+ inst->width, inst->height);
+#else
{
int w = inst->font_width * inst->width + 2*inst->window_border;
int h = inst->font_height * inst->height + 2*inst->window_border;
gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area), w, h);
#endif
}
+#endif
+
inst->sbar_adjust = GTK_ADJUSTMENT(gtk_adjustment_new(0,0,0,0,0,0));
inst->sbar = gtk_vscrollbar_new(inst->sbar_adjust);
inst->hbox = GTK_BOX(gtk_hbox_new(FALSE, 0));
gtk_container_add(GTK_CONTAINER(inst->window), GTK_WIDGET(inst->hbox));
- set_geom_hints(inst);
-
gtk_widget_show(inst->area);
if (conf_get_int(inst->conf, CONF_scrollbar))
gtk_widget_show(inst->sbar);
gtk_widget_add_events(GTK_WIDGET(inst->area),
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
- GDK_POINTER_MOTION_MASK | GDK_BUTTON_MOTION_MASK);
+ GDK_POINTER_MOTION_MASK | GDK_BUTTON_MOTION_MASK
+#if GTK_CHECK_VERSION(3,4,0)
+ | GDK_SMOOTH_SCROLL_MASK
+#endif
+ );
{
extern const char *const *const main_icon[];