Tooltips on icons

src-core/common/widgets/menuitem_tooltip.cpp

@@ -0,0 +1,16 @@
+#include "menuitem_tooltip.h"
+#include "imgui/imgui.h"
+
+namespace satdump
+{
+    namespace widgets
+    {
+        bool MenuItemTooltip(const char *label, const char *tooltip, const char *shortcut, bool selected, bool enabled)
+        {
+            bool v = ImGui::MenuItem(label, shortcut, selected, enabled);
+            if (ImGui::IsItemHovered())
+                ImGui::SetTooltip(tooltip);
+            return v;
+        }
+    } // namespace widgets
+} // namespace satdump

src-core/common/widgets/menuitem_tooltip.h

@@ -0,0 +1,21 @@
+#pragma once
+
+/**
+ * @file menuitem_tooltip.h
+ */
+
+namespace satdump
+{
+    namespace widgets
+    {
+        /**
+         * @brief Just an ImGui::MenuItem, but with a built-in tooltip when hovered
+         * @param label See ImGui
+         * @param tooltip Tooltip string
+         * @param shortcut See ImGui
+         * @param selected See ImGui
+         * @param enabled See ImGui
+         */
+        bool MenuItemTooltip(const char *label, const char *tooltip, const char *shortcut = __null, bool selected = false, bool enabled = true);
+    } // namespace widgets
+} // namespace satdump

src-core/dsp/flowgraph/dsp_flowgraph_handler.cpp

@@ -1,4 +1,5 @@
 #include "dsp_flowgraph_handler.h"
+#include "common/widgets/menuitem_tooltip.h"
 #include "core/backend.h"
 
 #include "dsp/flowgraph/dsp_flowgraph_register.h"
@@ -71,12 +72,12 @@ namespace satdump
 
             if (running)
             {
-                if (ImGui::MenuItem("\ufc62"))
+                if (widgets::MenuItemTooltip("\ufc62", "Stop flowgraph"))
                     flowgraph.stop();
             }
             else
             {
-                if (ImGui::MenuItem("\uf909"))
+                if (widgets::MenuItemTooltip("\uf909", "Start flowgraph"))
                 {
                     if (flow_thread.joinable())
                         flow_thread.join();
@@ -86,8 +87,8 @@ namespace satdump
             }
 
             bool is_save_as = false;
-            if (ImGui::MenuItem("\ueb4b", NULL, false, current_file != "") || //
-                (is_save_as = ImGui::MenuItem("\ueb4a")) ||                   //
+            if (widgets::MenuItemTooltip("\ueb4b", "Save file", NULL, false, current_file != "") || //
+                (is_save_as = widgets::MenuItemTooltip("\ueb4a", "Save file as")) ||                //
                 (ImGui::IsKeyDown(ImGuiKey_ReservedForModCtrl) && ImGui::IsKeyPressed(ImGuiKey_S)))
             {
                 auto fun = [this, is_save_as]()
@@ -104,7 +105,7 @@ namespace satdump
                 tq.push(fun);
             }
 
-            if (ImGui::MenuItem("\uea7f"))
+            if (widgets::MenuItemTooltip("\uea7f", "Load a file"))
             {
                 auto fun = [this]()
                 {