Scaffold for dialog previews in the scen editor

rsrc/dialogs/edit-special-node.xml

@@ -107,6 +107,7 @@
 	<button name='jump-edit' type='large' top='468' left='349'>Create/Edit</button>
 	<led name='jump-toggle' top='474' left='349'/>
 	
+	<button name='preview-dialog' type='regular' top='470' left='522'>Preview</button>
 	
 	<button name='okay' type='regular' top='494' left='522'>OK</button>
 	<button name='cancel' type='regular' top='494' left='456'>Cancel</button>

src/scenario/special-oneshot.cpp

@@ -37,7 +37,8 @@ namespace {
 		.ex1a(STRT_BUTTON)
 		.ex2a(STRT_BUTTON)
 		.ex1b(eSpecPicker::NODE)
-		.ex2b(eSpecPicker::NODE);
+		.ex2b(eSpecPicker::NODE)
+		.preview();
 	node_properties_t S_ITEM_DIALOG = node_builder_t(eSpecType::ONCE_GIVE_ITEM_DIALOG)
 		.sdf()
 		.msg()

src/scenario/special.cpp

@@ -575,6 +575,7 @@ bool node_category_info_t::contains(eSpecType spec) const {
 node_properties_t::node_properties_t(eSpecType type)
 	: self(type)
 	, cat(getNodeCategory(type))
+	, can_preview(false)
 {
 	set(eSpecField::JUMP, eSpecPicker::NODE);
 }
@@ -872,6 +873,11 @@ node_builder_t& node_builder_t::loc(eSpecField a, eSpecField b, eLocType type, e
 	return *this;
 }
 
+node_builder_t& node_builder_t::preview() {
+	node.can_preview = true;
+	return *this;
+}
+
 node_builder_t::operator node_properties_t() {
 	std::map<eSpecType, node_properties_t>& allNodeProps = nodeProps();
 	allNodeProps.emplace(node.self, node);

src/scenario/special.hpp

@@ -213,6 +213,7 @@ struct node_properties_t {
 	node_function_t ex1a(const cSpecial&) const, ex1b(const cSpecial&) const, ex1c(const cSpecial&) const;
 	node_function_t ex2a(const cSpecial&) const, ex2b(const cSpecial&) const, ex2c(const cSpecial&) const;
 	node_properties_t() : node_properties_t(eSpecType::INVALID) {}
+	bool can_preview;
 private:
 	node_properties_t(eSpecType type);
 	node_function_t get(const cSpecial& spec, eSpecField fld) const;
@@ -267,6 +268,8 @@ struct node_builder_t {
 	node_builder_t& loc(eSpecField a, eSpecField b, eLocType type);
 	// As above, but also notes that the area the location is in will be specified by the indicated field.
 	node_builder_t& loc(eSpecField a, eSpecField b, eLocType type, eSpecField where);
+	// Specifies that the node defines a dialog which can be previewed
+	node_builder_t& preview();
 	node_condition_builder_t when(node_condition_t cond, int lbl_sub);
 	operator node_properties_t();
 private:

src/scenedit/scen.keydlgs.cpp

@@ -37,6 +37,11 @@ extern cScenario scenario;
 extern cOutdoors* current_terrain;
 extern cCustomGraphics spec_scen_g;
 
+static bool preview_spec_enc_dlog(cDialog& me, std::string item_hit, cSpecial& special) {
+	LOG("Preview clicked!");
+	return true;
+}
+
 std::vector<pic_num_t> field_pics = {0,3,5,6,7,8,9,10,11,12,13,14,15,24,25,26,27,28,29,30,31,4};
 std::vector<pic_num_t> static_boom_pics = {0,1,2,3,4,5};
 std::vector<pic_num_t> boom_pics = {0,1,2,3,4,5,8,9,10,11,12,13};
@@ -795,6 +800,14 @@ static void put_spec_enc_in_dlog(cDialog& me, node_stack_t& edit_stack) {
 	setup_node_field(me, "x2c", spec.ex2c, info.ex2c(spec));
 	
 	setup_node_field(me, "jump", spec.jumpto, info.jump(spec));
+
+	if(info.can_preview){
+		using namespace std::placeholders;
+		me["preview-dialog"].attachClickHandler(std::bind(preview_spec_enc_dlog, _1, _2, std::ref(spec)));
+		me["preview-dialog"].show();
+	}else{
+		me["preview-dialog"].hide();
+	}
 }
 
 static void save_spec_enc(cDialog& me, node_stack_t& edit_stack) {