Now you can reset a single setting to its default value and spawn working correctly

Author: Patitotective

ImExample.nimble

@@ -8,13 +8,13 @@ backend          = "cpp"
 # Dependencies
 
 requires "nim >= 1.6.2"
-requires "kdl >= 1.2.4"
+requires "kdl >= 2.0.0"
 requires "nimgl >= 1.3.2"
 requires "stb_image >= 2.5"
-requires "imstyle >= 1.0.0"
-requires "openurl >= 2.0.3"
+requires "imstyle >= 3.0.0"
+requires "openurl >= 2.0.4"
 requires "tinydialogs >= 1.0.0"
-requires "constructor >= 1.1.4"
+requires "constructor >= 1.2.0"
 
 import std/[strformat, options]
 import src/types
@@ -32,7 +32,7 @@ let args = &"--app:gui --out:{outPath} --cpu:{arch} -d:configPath={configPath} {
 
 task buildr, "Build the application for release":
   exec "nimble install -d -y"
-  exec &"nim cpp -d:release {args} main.nim"
+  exec &"nim c -d:release {args} main.nim"
 
 const desktop = """
 [Desktop Entry]
@@ -54,7 +54,7 @@ task buildapp, "Build the AppImage":
   # Compile applicaiton executable
   if not existsDir("AppDir"): mkDir("AppDir")
   exec "nimble install -d -y"
-  exec &"nim cpp -d:release -d:appimage {args} --out:AppDir/AppRun main.nim"
+  exec &"nim c -d:release -d:appimage {args} --out:AppDir/AppRun main.nim"
 
   # Make desktop file
   writeFile(

config.nims

@@ -1,6 +1,7 @@
 switch("backend", "cpp")
 switch("warning", "HoleEnumConv:off")
 switch("warning", "ImplicitDefaultValue:off")
+switch("threads", "on")
 
 when defined(Windows):
   switch("passC", "-static")

main.nim

@@ -1,4 +1,4 @@
-import std/[threadpool, strutils, options, os]
+import std/[threadpool, strutils, strformat, os]
 
 import imstyle
 import openurl
@@ -11,17 +11,11 @@ import src/[settingsmodal, utils, types, icons]
 when defined(release):
   import resources
 
-# TODO be able to reset single preferences to their default value
-# TODO save only the settings values in prefs file
-
 proc getConfigDir(app: App): string =
   getConfigDir() / app.config.name
 
 proc drawAboutModal(app: App) =
-  var center: ImVec2
-  getCenterNonUDT(center.addr, igGetMainViewport())
-  igSetNextWindowPos(center, Always, igVec2(0.5f, 0.5f))
-
+  igSetNextWindowPos(igGetMainViewport().getCenter(), Always, igVec2(0.5f, 0.5f))
   let unusedOpen = true # Passing this parameter creates a close button
   if igBeginPopupModal(cstring "About " & app.config.name & "###about", unusedOpen.unsafeAddr, flags = makeFlags(ImGuiWindowFlags.NoResize)):
     # Display icon image
@@ -65,22 +59,8 @@ proc drawAboutModal(app: App) =
 
     igEndPopup()
 
-proc drawDialogModal(app: App) =
-  var center: ImVec2
-  getCenterNonUDT(center.addr, igGetMainViewport())
-  igSetNextWindowPos(center, Always, igVec2(0.5f, 0.5f))
-
-  if igBeginPopupModal(cstring "External Dialog###dialog", flags = makeFlags(ImGuiWindowFlags.NoResize)):
-    igText("An external dialog is open, \nclose it to continue using the app.")
-
-    # If all spawned threads are finished we can close this popup
-    if app.checkFlowVarsReady(messageBoxResult):
-      igCloseCurrentPopup()
-
-    igEndPopup()
-
 proc drawMainMenuBar(app: var App) =
-  var openAbout, openPrefs, openDialog = false
+  var openAbout, openPrefs, openBlockdialog = false
 
   if igBeginMainMenuBar():
     if igBeginMenu("File"):
@@ -94,7 +74,7 @@ proc drawMainMenuBar(app: var App) =
         # If a messageBox hasn't been called or if a called messageBox has already been closed
         if app.messageBoxResult.isNil or app.messageBoxResult.isReady():
           app.messageBoxResult = spawn messageBox(app.config.name, "Hello, earthling. Wanna come with us?", DialogType.YesNo, IconType.Question, Button.Yes)
-          openDialog = true
+          openBlockdialog = true
 
       igEndMenu()
 
@@ -110,34 +90,17 @@ proc drawMainMenuBar(app: var App) =
 
   # See https://github.com/ocornut/imgui/issues/331#issuecomment-751372071
   if openPrefs:
-    echo "TODO"
-    # app.settingsmodal.cache = app.prefs[settings]
+    initCache(app.prefs[settings])
     igOpenPopup("Settings")
   if openAbout:
     igOpenPopup("###about")
-  if openDialog:
-    igOpenPopup("###dialog")
-    igOpenPopup("###dialog")
-type
-  SettingType* = enum
-    stInput # Input text
-    stCheck # Checkbox
-    stSlider # Int slider
-    stFSlider # Float slider
-    stSpin # Int spin
-    stFSpin # Float spin
-    stCombo
-    stRadio # Radio button
-    stRGB # Color edit RGB
-    stRGBA # Color edit RGBA
-    stSection
-    stFile # File picker
-    stFiles # Multiple files picker
-    stFolder # Folder picker
+  if openBlockdialog:
+    igOpenPopup("###blockdialog")
 
   # These modals will only get drawn when igOpenPopup(name) are called, respectly
   app.drawAboutModal()
   app.drawSettingsmodal()
+  # app.drawBlockDialogModal()
 
 proc drawMain(app: var App) = # Draw the main window
   let viewport = igGetMainViewport()
@@ -166,8 +129,6 @@ proc drawMain(app: var App) = # Draw the main window
 
   igEnd()
 
-  app.drawDialogModal()
-
 proc render(app: var App) = # Called in the main loop
   # Poll and handle events (inputs, window resize, etc.)
   glfwPollEvents() # Use glfwWaitEvents() to only draw on events (more efficient)
@@ -248,10 +209,23 @@ proc initApp(): App =
     when defined(release): "prefs"
     else: "prefs_dev"
 
-  result.prefs = initKPrefs(
-    path = (result.getConfigDir() / filename).changeFileExt("kdl"),
-    default = initPrefs()
-  )
+  let path = (result.getConfigDir() / filename).changeFileExt("kdl")
+
+  try:
+    result.prefs = initKPrefs(
+      path = path,
+      default = initPrefs()
+    )
+  except KdlError:
+    let m = messageBox(result.config.name, &"Corrupt preferences file {path}.\nYou cannot continue using the app until it is fixed.\nYou may fix it manually or do you want to delete it and reset its content? You cannot undo this action", DialogType.OkCancel, IconType.Error, Button.No)
+    if m == Button.Yes:
+      discard tryRemoveFile(path)
+      result.prefs = initKPrefs(
+        path = path,
+        default = initPrefs()
+      )
+    else:
+      raise
 
 template initFonts(app: var App) =
   # Merge ForkAwesome icon font
@@ -277,6 +251,8 @@ template initFonts(app: var App) =
       io.fonts.igAddFontFromMemoryTTF(app.res(app.config.iconFontPath), font.size, config.unsafeAddr, iconFontGlyphRanges[0].unsafeAddr)
 
 proc terminate(app: var App) =
+  sync() # Wait for spawned threads
+
   var x, y, width, height: int32
 
   app.win.getWindowPos(x.addr, y.addr)
@@ -315,6 +291,7 @@ proc main() =
   app.initFonts()
 
   # Main loop
+  # discard app.win.setWindowCloseCallback(closeCallback(, app.config.name))
   while not app.win.windowShouldClose:
     app.render()
 

src/settingsmodal.nim

@@ -6,19 +6,24 @@ import nimgl/imgui
 
 import utils, icons, types
 
-proc settingLabel(name: string, setting: Setting[auto]): cstring =
-  cstring (if setting.display.len == 0: name else: setting.display) & ": "
+proc settingLabel(name: string, setting: Setting[auto]): string =
+  (if setting.display.len == 0: name else: setting.display) & ": "
+
+proc drawSettings(settings: var object, maxLabelWidth: float32): bool =
+  ## Returns wheter or not to open the block dialog (because a file dailog or so was open)
 
-proc drawSettings(settings: var object, maxLabelWidth: float32) =
   for name, setting in settings.fieldPairs:
     let label = settingLabel(name, setting)
     let id = cstring "##" & name
     if setting.kind != stSection:
-      igText(label); igSameLine(0, 0)
-      if igIsItemHovered() and setting.help.len > 0:
-        igSetToolTip(cstring setting.help)
-
-      igDummy(igVec2(maxLabelWidth - igCalcTextSize(label).x, 0))
+      igText(cstring label); igSameLine(0, 0)
+      if igIsItemHovered():
+        if igIsMouseReleased(ImGuiMouseButton.Right):
+          igOpenPopup(cstring label)
+        elif setting.help.len > 0:
+          igSetToolTip(cstring setting.help)
+
+      igDummy(igVec2(maxLabelWidth - igCalcTextSize(cstring label).x, 0))
       igSameLine(0, 0)
 
     case setting.kind
@@ -91,44 +96,60 @@ proc drawSettings(settings: var object, maxLabelWidth: float32) =
     of stRGBA:
       igColorEdit4(id, setting.rgbaCache, makeFlags(setting.rgbaFlags))
     of stFile:
-      let fileCache =
-        if setting.fileCache.isNil or not setting.fileCache.isReady:
-          ""
-        else:
-          ^setting.fileCache
+      if not setting.fileCache.flowvar.isNil and setting.fileCache.flowvar.isReady and (let val = ^setting.fileCache.flowvar; val.len > 0):
+        setting.fileCache = (val: val, flowvar: nil) # Here we set flowvar to nil because once we acquire it's value it's not neccessary until it's spawned again
+
       igPushID(id)
-      igInputTextWithHint("##input", "No file selected", cstring fileCache, uint fileCache.len, flags = ImGuiInputTextFlags.ReadOnly)
+      igInputTextWithHint("##input", "No file selected", cstring setting.fileCache.val, uint setting.fileCache.val.len, flags = ImGuiInputTextFlags.ReadOnly)
       igSameLine()
-      if (igIsItemHovered(flags = AllowWhenDisabled) and igIsMouseDoubleClicked(ImGuiMouseButton.Left)) or igButton("Browse " & FA_FolderOpen):
-        setting.fileCache = spawn openFileDialog("Choose File", getCurrentDir() / "\0", setting.fileFilterPatterns, setting.fileSingleFilterDescription)
+      if igButton("Browse " & FA_FolderOpen):
+        setting.fileCache.flowvar = spawn openFileDialog("Choose File", getCurrentDir() / "\0", setting.fileFilterPatterns, setting.fileSingleFilterDescription)
+        result = true
       igPopID()
     of stFiles:
-      let files = setting.filesCache.join(",")
+      if not setting.filesCache.flowvar.isNil and setting.filesCache.flowvar.isReady and (let val = ^setting.filesCache.flowvar; val.len > 0):
+        setting.filesCache = (val: val, flowvar: nil) # Here we set flowvar to nil because once we acquire it's value it's not neccessary until it's spawned again
+
+      let files = setting.filesCache.val.join(";")
       igPushID(id)
       igInputTextWithHint("##input", "No files selected", cstring files, uint files.len, flags = ImGuiInputTextFlags.ReadOnly)
       igSameLine()
-      if (igIsItemHovered(flags = AllowWhenDisabled) and igIsMouseDoubleClicked(ImGuiMouseButton.Left)) or igButton("Browse " & FA_FolderOpen):
-        if (let paths = openMultipleFilesDialog("Choose Files", getCurrentDir() / "\0", setting.filesFilterPatterns, setting.filesSingleFilterDescription); paths.len > 0):
-          setting.filesCache = paths
+      if igButton("Browse " & FA_FolderOpen):
+        setting.filesCache.flowvar = spawn openMultipleFilesDialog("Choose Files", getCurrentDir() / "\0", setting.filesFilterPatterns, setting.filesSingleFilterDescription)
+        result = true
       igPopID()
     of stFolder:
+      if not setting.folderCache.flowvar.isNil and setting.folderCache.flowvar.isReady and (let val = ^setting.folderCache.flowvar; val.len > 0):
+        setting.folderCache = (val: val, flowvar: nil) # Here we set flowvar to nil because once we acquire it's value it's not neccessary until it's spawned again
+
       igPushID(id)
-      igInputTextWithHint("##input", "No folder selected", cstring setting.folderCache, uint setting.folderCache.len, flags = ImGuiInputTextFlags.ReadOnly)
+      igInputTextWithHint("##input", "No folder selected", cstring setting.folderCache.val, uint setting.folderCache.val.len, flags = ImGuiInputTextFlags.ReadOnly)
       igSameLine()
-      if (igIsItemHovered(flags = AllowWhenDisabled) and igIsMouseDoubleClicked(ImGuiMouseButton.Left)) or igButton("Browse " & FA_FolderOpen):
-        if (let path = selectFolderDialog("Choose Folder", getCurrentDir() / "\0"); path.len > 0):
-          setting.folderCache = path
+      if igButton("Browse " & FA_FolderOpen):
+        setting.folderCache.flowvar = spawn selectFolderDialog("Choose Folder", getCurrentDir() / "\0")
+        result = true
       igPopID()
     of stSection:
-      igPushID(id)
-      if igCollapsingHeader(label, makeFlags(setting.sectionFlags)):
-        igIndent()
+      if igCollapsingHeader(cstring label, makeFlags(setting.sectionFlags)):
+        if igIsItemHovered():
+          if igIsMouseReleased(ImGuiMouseButton.Right):
+            igOpenPopup(cstring label)
+
+        igPushID(id); igIndent()
         when setting.content is object:
-          drawSettings(setting.content, maxLabelWidth)
-        igUnindent()
-      igPopID()
+          result = drawSettings(setting.content, maxLabelWidth)
+        igUnindent(); igPopID()
+      else: # When the header is closed
+        if igIsItemHovered():
+          if igIsMouseReleased(ImGuiMouseButton.Right):
+            igOpenPopup(cstring label)
+
+    if igBeginPopup(cstring label):
+      if igSelectable(cstring("Reset " & label[0..^3] #[remove the ": "]# & " to default")):
+        setting.cacheToDefault()
+      igEndPopup()
 
-    if setting.help.len > 0:
+    if setting.help.len > 0 and setting.kind != stSection:
       igSameLine()
       igHelpMarker(setting.help)
 
@@ -144,7 +165,7 @@ proc calcMaxLabelWidth(settings: object): float32 =
               calcMaxLabelWidth(setting.content)
             else: 0f
           else:
-            igCalcTextSize(label).x
+            igCalcTextSize(cstring label).x
         if width > result:
           result = width
       else:
@@ -159,21 +180,21 @@ proc drawSettingsmodal*(app: var App) =
   if igBeginPopupModal("Settings", flags = makeFlags(AlwaysAutoResize, HorizontalScrollbar)):
     var close = false
 
-    # app.settingsmodal.cache must be set to app.prefs[settings] once when opening the modal
-    drawSettings(app.prefs[settings], app.maxLabelWidth)
+    if drawSettings(app.prefs[settings], app.maxLabelWidth):
+      igOpenPopup("###blockdialog")
+
+    app.drawBlockDialogModal()
 
     igSpacing()
 
     if igButton("Save"):
-      echo "TODO: save"
-      # app.prefs[settings] = app.settingsmodal.cache
+      app.prefs[settings].save()
       igCloseCurrentPopup()
 
     igSameLine()
 
     if igButton("Cancel"):
-      echo "TODO: cache"
-      # app.settingsmodal.cache = app.prefs[settings]
+      initCache(app.prefs[settings])
       igCloseCurrentPopup()
 
     igSameLine()