example preview button for ONCE_DIALOG

src/dialogxml/dialogs/3choice.cpp

@@ -14,6 +14,7 @@
 #include "mathutil.hpp"
 #include "dialogxml/widgets/message.hpp"
 #include "dialogxml/widgets/pict.hpp"
+#include "dialogxml/dialogs/strdlog.hpp"
 #include "tools/cursors.hpp"
 
 cThreeChoice::cThreeChoice
@@ -193,3 +194,31 @@ short custom_choice_dialog(std::array<std::string, 6>& strs,short pic_num,ePicTy
 	}
 	return -1;
 }
+
+short once_dialog(cUniverse& univ, cSpecial& spec, eSpecCtxType cur_type) {
+	std::array<std::string, 6> strs;
+	std::array<short, 3> buttons = {-1,-1,-1};
+
+	if(spec.m1 < 0)
+		return -1;
+
+	univ.get_strs(strs, cur_type, spec.m1);
+	if(spec.m3 > 0) {
+		// The first button defaults to OK if toggle is on
+		buttons[0] = 1;
+		buttons[1] = spec.ex1a;
+		buttons[2] = spec.ex2a;
+		// If button 2 and/or button 3 are provided, the first button becomes a Leave button!
+		if((spec.ex1a >= 0) || (spec.ex2a >= 0))
+			buttons[0] = 9;
+	}
+	if(spec.m3 <= 0) {
+		buttons[1] = spec.ex1a;
+		buttons[2] = spec.ex2a;
+	}
+	if((buttons[0] < 0) && (buttons[1] < 0)) {
+		showError("Dialog box ended up with no buttons.");
+		return -1;
+	}
+	return custom_choice_dialog(strs, spec.pic, ePicType(spec.pictype), buttons, true, spec.ex1c, spec.ex2c);
+}

src/dialogxml/dialogs/3choice.hpp

@@ -18,6 +18,8 @@
 #include "dialogxml/dialogs/choicedlog.hpp"
 #include "dialogxml/widgets/button.hpp"
 #include "dialogxml/widgets/pictypes.hpp"
+#include "universe/universe.hpp"
+#include "scenario/special.hpp"
 
 /// Basic button type template
 struct bbtt {
@@ -74,5 +76,6 @@ public:
 };
 
 short custom_choice_dialog(std::array<std::string, 6>& strs,short pic_num,ePicType pic_type,std::array<short, 3>& buttons, bool anim_pict = false, short anim_loops = -1, int anim_fps = -1);
+short once_dialog(cUniverse& univ, cSpecial& spec, eSpecCtxType cur_type);
 
 #endif

src/game/boe.specials.cpp

@@ -2564,27 +2564,8 @@ void oneshot_spec(const runtime_state& ctx) {
 			break;
 		case eSpecType::ONCE_DIALOG:
 			check_mess = false;
-			if(spec.m1 < 0)
-				break;
-			univ.get_strs(strs, ctx.cur_spec_type, spec.m1);
-			if(spec.m3 > 0) {
-				// The first button defaults to OK if toggle is on
-				buttons[0] = 1;
-				buttons[1] = spec.ex1a;
-				buttons[2] = spec.ex2a;
-				// If button 2 and/or button 3 are provided, the first button becomes a Leave button!
-				if((spec.ex1a >= 0) || (spec.ex2a >= 0))
-					buttons[0] = 9;
-			}
-			if(spec.m3 <= 0) {
-				buttons[1] = spec.ex1a;
-				buttons[2] = spec.ex2a;
-			}
-			if((buttons[0] < 0) && (buttons[1] < 0)) {
-				showError("Dialog box ended up with no buttons.");
-				break;
-			}
-			dlg_res = custom_choice_dialog(strs, spec.pic, ePicType(spec.pictype), buttons, true, spec.ex1c, spec.ex2c);
+			dlg_res = once_dialog(univ, spec, ctx.cur_spec_type);
+			if(dlg_res < 0) break;
 			if(spec.m3 > 0) {
 				if(dlg_res == 1) {
 					if((spec.ex1a >= 0) || (spec.ex2a >= 0)) {

src/scenedit/scen.keydlgs.cpp

@@ -37,8 +37,18 @@ 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!");
+static bool preview_spec_enc_dlog(cDialog& me, std::string item_hit, cSpecial& special, short mode) {
+	eSpecCtxType cur_type = static_cast<eSpecCtxType>(mode);
+	cUniverse univ;
+	univ.scenario = scenario;
+
+	switch(special.type){
+		case eSpecType::ONCE_DIALOG:
+			once_dialog(univ, special, cur_type);
+			break;
+		default:
+			break;
+	}
 	return true;
 }
 
@@ -802,8 +812,6 @@ static void put_spec_enc_in_dlog(cDialog& me, node_stack_t& edit_stack) {
 	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();
@@ -1401,8 +1409,11 @@ bool edit_spec_enc(short which_node,short mode,cDialog* parent) {
 		return true;
 	});
 	
+
 	special["back"].hide();
 	edit_stack.push({which_node,mode,the_node});
+	special["preview-dialog"].attachClickHandler(std::bind(preview_spec_enc_dlog, _1, _2, std::ref(edit_stack.top().node), mode));
+
 	put_spec_enc_in_dlog(special, edit_stack);
 	
 	special.setResult(false);