From 28ae2ea5011e6b9f89cef0fe8b107c23bd0d90f4 Mon Sep 17 00:00:00 2001
From: Diederik ter Rahe <dterrahe@yahoo.com>
Date: Sun, 12 Sep 2021 18:16:09 +0200
Subject: [PATCH] simple module to call dt_action_process

---
 examples/gui_action.lua | 105 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 examples/gui_action.lua

diff --git a/examples/gui_action.lua b/examples/gui_action.lua
new file mode 100644
index 0000000..cbf33a4
--- /dev/null
+++ b/examples/gui_action.lua
@@ -0,0 +1,105 @@
+local dt = require "darktable"
+
+local NaN = 0/0
+
+local wg = {}
+
+wg.action = dt.new_widget("entry"){
+    text = "lib/filter/view",
+    placeholder = "action path",
+    tooltip = "enter the full path of an action, for example 'lib/filter/view'"
+  }
+
+wg.instance = dt.new_widget("combobox"){
+  label = "instance",
+  tooltip = "the instance of an image processing module to execute action on",
+  "0", "+1", "-1", "+2", "-2", "+3", "-3", "+4", "-4", "+5", "-5", "+6", "-6", "+7", "-7", "+8", "-8", "+9", "-9"
+}
+
+wg.element = dt.new_widget("entry"){
+  text = "",
+  placeholder = "action element",
+  tooltip = "enter the element of an action, for example 'selection', or leave empty for default"
+}
+
+wg.effect = dt.new_widget("entry"){
+  text = "next",
+  placeholder = "action effect",
+  tooltip = "enter the effect of an action, for example 'next', or leave empty for default"
+}
+
+wg.speed = dt.new_widget("entry"){
+  text = "1",
+  placeholder = "action speed",
+  tooltip = "enter the speed to use in action execution, or leave empty to only read state"
+}
+
+wg.check = dt.new_widget("check_button"){
+  label = 'perform action',
+  tooltip = 'perform action or only read return',
+  clicked_callback = function()
+    wg.speed.sensitive = wg.check.value
+  end,
+  value = true
+}
+
+wg.return_value = dt.new_widget("entry"){
+  text = "",
+  sensitive = false
+}
+
+dt.register_lib(
+    "execute_action",        -- Module name
+    "execute gui actions",   -- name
+    true,                    -- expandable
+    false,                   -- resetable
+    {[dt.gui.views.lighttable] = {"DT_UI_CONTAINER_PANEL_LEFT_CENTER", 100},
+     [dt.gui.views.darkroom] = {"DT_UI_CONTAINER_PANEL_LEFT_CENTER", 100}},
+    dt.new_widget("box")
+    {
+      orientation = "vertical",
+
+      dt.new_widget("box")
+      {
+        orientation = "horizontal",
+        dt.new_widget("label"){label = "action path", halign = "start"},
+        wg.action
+      },
+      wg.instance,
+      dt.new_widget("box")
+      {
+        orientation = "horizontal",
+        dt.new_widget("label"){label = "element", halign = "start"},
+        wg.element
+      },
+      dt.new_widget("box")
+      {
+        orientation = "horizontal",
+        dt.new_widget("label"){label = "effect", halign = "start"},
+        wg.effect
+      },
+      wg.check,
+      dt.new_widget("box")
+      {
+        orientation = "horizontal",
+        dt.new_widget("label"){label = "speed", halign = "start"},
+        wg.speed
+      },
+      dt.new_widget("button")
+      {
+        label = "execute action",
+        tooltip = "execute the action specified in the fields above",
+        clicked_callback = function(_)
+          local sp = nan
+          if wg.check.value then sp = wg.speed.text end
+          wg.return_value.text = dt.gui.action(wg.action.text, wg.instance.value, wg.element.text, wg.effect.text, sp)
+        end
+      },
+      dt.new_widget("box")
+      {
+        orientation = "horizontal",
+        dt.new_widget("label"){label = "return value:", halign = "start"},
+        wg.return_value
+      },
+    }
+  )
\ No newline at end of file