basic support for filtering campaigns based on completion status (#8451)

data/core/about.cfg

@@ -1778,7 +1778,7 @@
     [/entry]
     [entry]
         name = "Subhraman Sarkar (LumiousE/babaissarkar)"
-        email = "suvrax_AT_gmail.com"
+        email = "suvrax_AT_gmail_DOT_com"
     [/entry]
     [entry]
         name = "sylecn"

data/gui/window/campaign_dialog.cfg

@@ -227,6 +227,42 @@
 											tooltip = _"Sort in approximate chronological order of story events"
 										[/toggle_button]
 									[/column]
+									
+									[column]
+										grow_factor = 1
+										horizontal_grow = true
+
+										[multimenu_button]
+											id = "filter_completion"
+											tooltip = _"Filter by campaign completion status"
+											[option]
+												checkbox = yes
+												label = _ "Not Completed"
+												#po: campaigns which the player hasn't beaten, rather than campaigns which the author hasn't finished writing
+												tooltip = _ "Show campaigns not completed by player"
+											[/option]
+											[option]
+												checkbox = yes
+												label = _ "Completed: Bronze"
+												tooltip = _ "Show campaigns completed at easiest difficulty"
+											[/option]
+											[option]
+												checkbox = yes
+												label = _ "Completed: Silver"
+												tooltip = _ "Show campaigns completed at intermediate difficulties"
+											[/option]
+											[option]
+												checkbox = yes
+												label = _ "Completed: Gold"
+												tooltip = _ "Show campaigns completed at hardest difficulty"
+											[/option]
+											[option]
+												checkbox = yes
+												label = _ "Completed: All"
+												tooltip = _ "Show completed campaigns"
+											[/option]
+										[/multimenu_button]
+									[/column]
 								[/row]
 								[/grid]
 							[/panel]

src/gui/dialogs/campaign_selection.cpp

@@ -32,6 +32,7 @@
 #include "gui/widgets/window.hpp"
 #include "preferences/game.hpp"
 
+#include <iostream>
 #include <functional>
 #include "utils/irdya_datetime.hpp"
 
@@ -223,11 +224,32 @@ void campaign_selection::sort_campaigns(campaign_selection::CAMPAIGN_ORDER order
 		}
 	}
 
+	// List of which options has been selected in the completion filter multimenu_button
+	boost::dynamic_bitset<> filter_comp_options = find_widget<multimenu_button>(this, "filter_completion", false).get_toggle_states();
+
 	bool exists_in_filtered_result = false;
 	for(unsigned i = 0; i < levels.size(); ++i) {
-		if(show_items[i]) {
-			add_campaign_to_tree(levels[i]->data());
+		bool completed = preferences::is_campaign_completed(levels[i]->data()["id"]);
+		config::const_child_itors difficulties = levels[i]->data().child_range("difficulty");
+		auto did_complete_at = [](const config& c) { return c["completed_at"].to_bool(); };
 
+		std::cout << levels[i]->data().debug() << std::endl << std::endl;
+
+		// Check for non-completion on every difficulty save the first.
+		const bool only_first_completed = difficulties.size() > 1 &&
+			std::none_of(difficulties.begin() + 1, difficulties.end(), did_complete_at);
+		const bool completed_easy = only_first_completed && did_complete_at(difficulties.front());
+		const bool completed_hardest = !difficulties.empty() && did_complete_at(difficulties.back());
+		const bool completed_mid = completed && !completed_hardest && !completed_easy;
+
+		if( show_items[i] && (
+					( (!completed) && filter_comp_options[0] )       // Selects all campaigns not finished by player
+				 || ( completed && filter_comp_options[4] )          // Selects all campaigns finished by player
+				 || ( completed_hardest && filter_comp_options[3] )  // Selects campaigns completed in hardest difficulty
+				 || ( completed_easy && filter_comp_options[1] )     // Selects campaigns completed in easiest difficulty
+				 || ( completed_mid && filter_comp_options[2])       // Selects campaigns completed in any other difficulty
+				 )) {
+			add_campaign_to_tree(levels[i]->data());
 			if (!exists_in_filtered_result) {
 				exists_in_filtered_result = levels[i]->id() == was_selected;
 			}
@@ -315,6 +337,13 @@ void campaign_selection::pre_show(window& window)
 	/***** Setup campaign details. *****/
 	multi_page& pages = find_widget<multi_page>(&window, "campaign_details", false);
 
+	multimenu_button& filter_comp = find_widget<multimenu_button>(&window, "filter_completion", false);
+	connect_signal_notify_modified(filter_comp,
+		std::bind(&campaign_selection::sort_campaigns, this, RANK, 1));
+	for (unsigned j = 0; j < filter_comp.num_options(); j++) {
+		filter_comp.select_option(j);
+	}
+
 	for(const auto& level : engine_.get_levels_by_type_unfiltered(level_type::type::sp_campaign)) {
 		const config& campaign = level->data();