+ h /= 2;
+ y_off = h;
+ }
+
+ // configure surface to wxh dimensions
+ s->set_configuration(w, h);
+ // set source reactangle, even if we should not need to set it.
+ s->set_source_rectangle(0, 0, w, h);
+ // set destination to the display rectangle
+ s->set_destination_rectangle(x, y, w, h);
+
+ s->set_visibility(1);
+ s->set_opacity(256);
+
+ // configure surface to wxh dimensions
+ ss->set_configuration(w, h);
+ // set source reactangle, even if we should not need to set it.
+ ss->set_source_rectangle(0, 0, w, h);
+ // set destination to the display rectangle
+ ss->set_destination_rectangle(x+x_off, y+y_off, w, h);
+
+ ss->set_visibility(1);
+ ss->set_opacity(256);
+
+ this->controller->commit_changes();
+ this->display->roundtrip();
+
+ //redraw_fix(this, s, x, y, w, h);
+ //redraw_fix(this, ss, x+x_off, y+y_off, w, h);
+
+ logdebug("Surface %u now on layer %u with rect { %d, %d, %d, %d }",
+ surface_id, layer_id, x, y, w, h);
+}
+
+char const *App::activate_surface(char const *drawing_name) {
+ int surface_id = -1;
+
+ {
+ auto oid = this->lookup_id(drawing_name);
+ if (oid) {
+ surface_id = oid.value();
+ } else {
+ return "Surface does not exist";
+ }
+ }
+
+ if (!this->controller->surface_exists(surface_id)) {
+ return "Surface does not exist";
+ }
+
+ if (this->state.main == surface_id || this->state.sub == surface_id) {
+ return "Surface already active";
+ }
+
+ // This should involve a policy check, but as we do not (yet) have
+ // such a thing, we will just switch to this surface.
+ // XXX: input focus missing!!1
+
+ if (this->state != LayoutState{}) {
+ switch (this->state.state) {
+ case LayoutState::LayoutSingle:
+ if (this->can_split(surface_id)) {
+ this->surface_set_layout_split(this->state.main, surface_id);
+ return nullptr;
+ }
+ break;
+
+ case LayoutState::LayoutSplit:
+ if (this->can_split(surface_id)) {
+ this->deactivate(this->state.sub);
+ this->surface_set_layout_split(this->state.main, surface_id);
+ }
+
+ case LayoutState::LayoutNone:
+ break;
+ }
+ }
+
+ // Make it visible, no (or little effect) if already visible
+ auto &s = this->controller->surfaces[surface_id];
+
+ // Set all others invisible
+ for (auto &i : this->controller->surfaces) {
+ auto &si = this->controller->sprops[i.second->id];
+ if (si.id != s->id && si.visibility != 0 &&
+ int(si.id) != this->layers.main_surface) {
+ this->deactivate(si.id);
+ }
+ }
+ this->activate(s->id);
+
+ // commit changes
+ this->controller->commit_changes();
+ this->display->flush();
+
+ this->state.main = surface_id;
+ this->state.state = LayoutState::LayoutSingle;
+
+ // no error
+ return nullptr;
+}
+
+char const *App::deactivate_surface(char const *drawing_name) {
+ int surface_id = -1;
+
+ {
+ auto oid = this->lookup_id(drawing_name);
+ if (oid) {
+ surface_id = oid.value();
+ } else {
+ return "Surface does not exist";
+ }
+ }
+
+ if (surface_id == this->layers.main_surface) {
+ return "Cannot deactivate main_surface";
+ }
+
+ switch (this->state.state) {
+ case LayoutState::LayoutSplit:
+ if (surface_id == this->state.main) {
+ this->deactivate(surface_id);
+ this->surface_set_layout_full(this->state.main);
+
+ this->deactivate(this->state.sub);
+ this->surface_set_layout_full(this->state.sub);
+
+ this->state.main = -1;
+ this->state.sub = -1;
+ this->state.state = LayoutState::LayoutSingle;
+ } else if (surface_id == this->state.sub) {
+ this->deactivate(surface_id);
+ this->surface_set_layout_full(this->state.sub);
+ this->surface_set_layout_full(this->state.main);
+
+ // XXX send syndraw events....
+
+ this->state.sub = -1;
+ this->state.state = LayoutState::LayoutSingle;
+ }
+ break;
+
+ case LayoutState::LayoutSingle:
+ this->deactivate(surface_id);
+ this->state.main = -1;
+ this->state.sub = -1;
+ break;
+
+ case LayoutState::LayoutNone:
+ break;
+ }
+
+
+ this->controller->commit_changes();
+ this->display->flush();
+
+ return nullptr;
+}
+
+// _ _ _____ _
+// _ __ _ __ _____ _(_) ___ __| | | ____|_ _____ _ __ | |_ ___
+// | '_ \| '__/ _ \ \/ / |/ _ \/ _` | | _| \ \ / / _ \ '_ \| __/ __|
+// | |_) | | | (_) > <| | __/ (_| | | |___ \ V / __/ | | | |_\__ \
+// | .__/|_| \___/_/\_\_|\___|\__,_| |_____| \_/ \___|_| |_|\__|___/
+// |_|
+void App::surface_created(uint32_t surface_id) {
+ logdebug("surface_id is %u", surface_id);
+
+ this->surface_set_layout_full(surface_id);
+
+ this->controller->layers[this->layers.get_layer_id(surface_id).value()]
+ ->add_surface(this->controller->surfaces[surface_id].get());
+
+ // activate the main_surface right away
+ if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
+ logdebug("Activating main_surface (%d)", surface_id);
+
+ this->activate_surface(
+ this->lookup_name(surface_id).value_or("unknown-name").c_str());