Dynamic form controls visibility

MachWheel · Jun 1, 2022 · 7de889b · 7de889b
1 parent 9f6f904
commit 7de889b
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Showing 5 changed files with 71 additions and 28 deletions.
diff --git a/controller/_form.py b/controller/_form.py
@@ -1,22 +1,38 @@
+import os
+
 import PySimpleGUI as sg
 
 import assets
 
 
 class Form:
     def __init__(self, view):
-        self._set_duration = assets.cfg.MAX_DURATION
-        self._set_speed = assets.cfg.DFT_SPEED
         self._video_input: sg.Input = view["-VIDEO_IN-"]
+
+        self._controls: sg.Column = view['-CONTROLS_ROW-']
+        self._controls.hide_row()
+
         self._trim_check: sg.Checkbox = view["-TRIM_CHECK-"]
         self._s_hour: sg.Input = view["-HOUR_IN-"]
         self._s_minute: sg.Input = view["-MINUTE_IN-"]
         self._s_second: sg.Input = view["-SECOND_IN-"]
+
+        self._set_duration = assets.cfg.MAX_DURATION
         self._duration_slider: sg.Slider = view["-DURATION_SLIDER-"]
         self._duration_display: sg.Text = view["-DURATION_TXT-"]
+
+        self._set_speed = assets.cfg.DFT_SPEED
         self._speed_slider: sg.Slider = view["-SPEED_SLIDER-"]
         self._speed_display: sg.Text = view['-SPEED_TEXT-']
 
+
+    def controls_state(self, values):
+        file = values['-VIDEO_IN-']
+        if file and os.path.isfile(file):
+            self._controls.unhide_row()
+        else:
+            self._controls.hide_row()
+
     @property
     def data(self):
         hh: str = self._s_hour.get()

diff --git a/controller/application.py b/controller/application.py
@@ -12,12 +12,15 @@
 
 class Application:
     def __init__(self, window):
-        self.view = window
+        self.view: sg.Window = window
         self.form = Form(window)
 
     def read_events(self):
         event, values = self.view.read(timeout=10)
 
+        if event == "-VIDEO_IN-":
+            self.form.controls_state(values)
+
         if event == "-START_BTN-":
             options = self.read_form()
             if not options:

diff --git a/views/__init__.py b/views/__init__.py
@@ -10,8 +10,7 @@ def MAIN_WINDOW():
         [
             [_ui.HEADING()],
             [*_ui.VIDEO_BROWSER()],
-            [_ui.TRIM_FRAME()],
-            [_ui.SPEED_FRAME(), _ui.INFO()]
+            [_ui.CONTROLS_ROW()]
         ], finalize=True, icon=assets.icons.LOGO()
     )
 

diff --git a/views/_ui/__init__.py b/views/_ui/__init__.py
@@ -2,6 +2,7 @@
 
 from . import controls
 import assets
+from .controls import INFO_BTN
 
 
 def HEADING() -> sg.Text:
@@ -20,14 +21,29 @@ def VIDEO_BROWSER() -> tuple:
         controls.START_BTN()
     )
 
+##################################################################################
+
+def CONTROLS_ROW():
+    layout = [
+        [TRIM_FRAME()],
+        [SPEED_FRAME(), INFO_BTN()]
+    ]
+    return sg.Column(
+        layout=layout,
+        key='-CONTROLS_ROW-',
+        size=(450, None),
+        element_justification='center',
+        vertical_alignment='center'
+    )
+
 
 def TRIM_FRAME() -> sg.Frame:
     sep = sg.HSep(pad=(5, 15), color=assets.style.BG_COLOR())
     layout = [
         [sg.VPush()],
-        [*controls.TRIM_START_AT(), sg.Push()],
+        [*controls.START_TIME_INPUTS(), sg.Push()],
         [sep],
-        [*controls.TRIM_DURATION_SLIDER()],
+        [*controls.DURATION_SLIDER()],
         [sg.VPush()],
     ]
     return sg.Frame(
@@ -37,7 +53,8 @@ def TRIM_FRAME() -> sg.Frame:
         relief=sg.RELIEF_RAISED,
         expand_x=True,
         element_justification='left',
-        font=assets.style.F_11_B
+        font=assets.style.F_11_B,
+        size=(430, 130)
     )
 
 
@@ -49,18 +66,13 @@ def SPEED_FRAME() -> sg.Frame:
         expand_y=True,
         font=assets.style.F_11_B,
         relief=sg.RELIEF_RAISED,
-        vertical_alignment='top'
+        vertical_alignment='top',
+        size=(375, 65),
+        p=(5, 5)
     )
 
 
-def INFO() -> sg.Button:
-    return sg.Button(
-        image_data=assets.icons.INFO(),
-        button_color=assets.style.BTN_COLOR(),
-        border_width=0,
-        key="-INFO_BTN-",
-        enable_events=True
-    )
+##################################################################################
 
 def PROGRESS_BAR(bar_end: int):
     return [

diff --git a/views/_ui/controls.py b/views/_ui/controls.py
@@ -1,8 +1,19 @@
 import PySimpleGUI as sg
 
+import assets
 from assets import txt, style, icons
 
 
+def VIDEO_INPUT() -> sg.Input:
+    return sg.Input(
+        k='-VIDEO_IN-',
+        size=(30, 4),
+        expand_x=True,
+        font=style.F_14,
+        enable_events=True
+    )
+
+
 def BROWSE_BTN() -> sg.Button:
     return sg.Button(
         button_type=sg.BUTTON_TYPE_BROWSE_FILE,
@@ -14,15 +25,6 @@ def BROWSE_BTN() -> sg.Button:
     )
 
 
-def VIDEO_INPUT() -> sg.Input:
-    return sg.Input(
-        k='-VIDEO_IN-',
-        size=(30, 4),
-        expand_x=True,
-        font=style.F_14
-    )
-
-
 def START_BTN() -> sg.Button:
     return sg.Button(
         button_type=sg.BUTTON_TYPE_READ_FORM,
@@ -34,6 +36,17 @@ def START_BTN() -> sg.Button:
     )
 
 
+def INFO_BTN() -> sg.Button:
+    return sg.Button(
+        image_data=assets.icons.INFO(),
+        button_color=assets.style.BTN_COLOR(),
+        border_width=0,
+        key="-INFO_BTN-",
+        enable_events=True,
+        p=(5, 5)
+    )
+
+
 def _time_input(mode: str) -> tuple:
     time_input = sg.Input(
         k=f'-{mode.upper()}_IN-',
@@ -48,7 +61,7 @@ def _time_input(mode: str) -> tuple:
     return time_input, input_display
 
 
-def TRIM_START_AT() -> tuple:
+def START_TIME_INPUTS() -> tuple:
     check = sg.Checkbox(
         text=txt.START_AT,
         font=style.F_11_B,
@@ -62,7 +75,7 @@ def TRIM_START_AT() -> tuple:
     return check, sg.P(), *hour, sg.P(), *minute, sg.P(), *second
 
 
-def TRIM_DURATION_SLIDER():
+def DURATION_SLIDER():
     return (
         sg.T(txt.DURATION, font=style.F_11_B),
         sg.Slider(