Issue32 open file button

fonts/magrathea.sfd

@@ -22,7 +22,7 @@ OS2Version: 0
 OS2_WeightWidthSlopeOnly: 0
 OS2_UseTypoMetrics: 1
 CreationTime: 1772828475
-ModificationTime: 1775220549
+ModificationTime: 1781277780
 OS2TypoAscent: 0
 OS2TypoAOffset: 1
 OS2TypoDescent: 0
@@ -36,6 +36,7 @@ HheadAscent: 0
 HheadAOffset: 1
 HheadDescent: 0
 HheadDOffset: 1
+OS2Vendor: 'PfEd'
 MarkAttachClasses: 1
 DEI: 91125
 Encoding: ISO8859-1
@@ -47,7 +48,7 @@ FitToEm: 0
 WinInfo: 38 19 5
 BeginPrivate: 0
 EndPrivate
-BeginChars: 256 21
+BeginChars: 256 22
 
 StartChar: A
 Encoding: 65 65 0
@@ -824,6 +825,57 @@ SplineSet
  573 -1 l 1
  573 223 l 1
 EndSplineSet
+Validated: 1
+EndChar
+
+StartChar: a
+Encoding: 97 97 21
+Width: 1000
+Flags: HO
+LayerCount: 2
+Fore
+SplineSet
+701 182 m 2
+ 551 182 l 1
+ 551 32 l 2
+ 551 13 535 -3 516 -3 c 0
+ 497 -3 481 13 481 32 c 2
+ 481 182 l 1
+ 331 182 l 2
+ 312 182 296 198 296 217 c 0
+ 296 236 312 252 331 252 c 2
+ 481 252 l 1
+ 481 402 l 2
+ 481 421 497 437 516 437 c 0
+ 535 437 551 421 551 402 c 2
+ 551 252 l 1
+ 701 252 l 2
+ 720 252 736 236 736 217 c 0
+ 736 198 720 182 701 182 c 2
+637 672 m 1
+ 202 672 l 1
+ 204 -67 l 1
+ 828 -67 l 1
+ 828 470 l 1
+ 672 470 l 2
+ 653 470 637 486 637 505 c 2
+ 637 672 l 1
+169 -137 m 2
+ 150 -137 134 -121 134 -102 c 2
+ 132 707 l 0
+ 132 726 148 742 167 742 c 2
+ 672 742 l 2
+ 687 742 695 736 700 731 c 2
+ 886 532 l 2
+ 890 527 898 518 898 505 c 2
+ 898 -102 l 2
+ 898 -121 882 -137 863 -137 c 2
+ 169 -137 l 2
+707 621 m 1
+ 707 540 l 1
+ 783 540 l 1
+ 707 621 l 1
+EndSplineSet
 EndChar
 EndChars
 EndSplineFont

fonts/magrathea_svgs/load_file.svg.import

@@ -0,0 +1,43 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://detwpr10q5v4x"
+path="res://.godot/imported/load_file.svg-558594d713f483f5bbda472ddc8739ac.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://fonts/magrathea_svgs/load_file.svg"
+dest_files=["res://.godot/imported/load_file.svg-558594d713f483f5bbda472ddc8739ac.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

scenes/Main.tscn

@@ -130,6 +130,12 @@ grow_horizontal = 2
 grow_vertical = 2
 theme_override_constants/separation = 8
 
+[node name="OpenFileButton" type="Button" parent="Root/TopBar/ActionClipper/ActionStrip"]
+layout_mode = 2
+tooltip_text = "Open genome files"
+theme_override_fonts/font = ExtResource("2_0bbpv")
+text = "a"
+
 [node name="ComparisonButton" type="Button" parent="Root/TopBar/ActionClipper/ActionStrip"]
 layout_mode = 2
 tooltip_text = "Switch to comparison view"

scripts/main.gd

@@ -105,6 +105,7 @@ const READ_FILTER_FLAG_LABELS := [
 @onready var _settings_header: HBoxContainer = $Root/ContentMargin/ViewportLayer/SettingsPanel/SettingsMargin/SettingsLayout/SettingsHeader
 @onready var top_bar: HBoxContainer = $Root/TopBar
 @onready var settings_toggle_button: Button = $Root/TopBar/SettingsToggleButton
+@onready var open_file_button: Button = $Root/TopBar/ActionClipper/ActionStrip/OpenFileButton
 @onready var screenshot_button: Button = $Root/TopBar/ActionClipper/ActionStrip/ScreenshotButton
 @onready var search_button: Button = $Root/TopBar/ActionClipper/ActionStrip/SearchButton
 @onready var go_button: Button = $Root/TopBar/ActionClipper/ActionStrip/GoButton
@@ -209,6 +210,8 @@ var _download_action_button: Button
 var _download_status_label: RichTextLabel
 var _download_thread: Thread
 var _download_in_progress := false
+var _open_file_dialog: FileDialog
+var _open_file_last_dir := ""
 var _screenshot_dialog: FileDialog
 var _comparison_save_dialog: FileDialog
 var _startup_zem_prepare_thread: Thread
@@ -412,13 +415,40 @@ func _ready() -> void:
 	call_deferred("_startup_connect_local_zem")
 	if get_window().has_signal("files_dropped"):
 		get_window().files_dropped.connect(_on_files_dropped)
+	_setup_open_file_dialog()
 	if screenshot_button != null:
 		screenshot_button.pressed.connect(_on_screenshot_pressed)
 	_setup_screenshot_dialog()
 	_setup_comparison_save_dialog()
 	_comparison_controller.configure(self, _zem, _themes_lib, comparison_view)
 	_comparison_controller.setup()
 
+func _setup_open_file_dialog() -> void:
+	_open_file_dialog = FileDialog.new()
+	_open_file_dialog.file_mode = FileDialog.FILE_MODE_OPEN_FILES
+	_open_file_dialog.access = FileDialog.ACCESS_FILESYSTEM
+	_open_file_dialog.use_native_dialog = true
+	_open_file_dialog.title = "Open Genome Files"
+	_open_file_last_dir = _user_home_dir()
+	_open_file_dialog.current_dir = _open_file_last_dir
+	_open_file_dialog.files_selected.connect(_on_open_files_selected)
+	if _open_file_dialog.has_signal("canceled"):
+		_open_file_dialog.connect("canceled", Callable(self, "_remember_open_file_dialog_dir"))
+	add_child(_open_file_dialog)
+
+func _user_home_dir() -> String:
+	var home := OS.get_environment("HOME")
+	if home.is_empty():
+		home = OS.get_environment("USERPROFILE")
+	if home.is_empty():
+		var home_drive := OS.get_environment("HOMEDRIVE")
+		var home_path := OS.get_environment("HOMEPATH")
+		if not home_drive.is_empty() and not home_path.is_empty():
+			home = home_drive + home_path
+	if home.is_empty():
+		home = OS.get_system_dir(OS.SYSTEM_DIR_DESKTOP).get_base_dir()
+	return home
+
 func _setup_screenshot_dialog() -> void:
 	_screenshot_dialog = FileDialog.new()
 	_screenshot_dialog.file_mode = FileDialog.FILE_MODE_SAVE_FILE
@@ -571,6 +601,29 @@ func _on_comparison_save_file_selected(path: String) -> void:
 	if _top_bar_controller != null:
 		_top_bar_controller.on_comparison_save_file_selected(path)
 
+func _on_open_file_pressed() -> void:
+	if _open_file_dialog == null:
+		return
+	if open_file_button != null:
+		open_file_button.set_pressed_no_signal(false)
+		open_file_button.release_focus()
+	_open_file_dialog.current_dir = _open_file_last_dir if not _open_file_last_dir.is_empty() else _user_home_dir()
+	_open_file_dialog.popup_centered_ratio(0.7)
+
+func _on_open_files_selected(paths: PackedStringArray) -> void:
+	if paths.is_empty():
+		return
+	var first_path := str(paths[0])
+	if not first_path.is_empty():
+		_open_file_last_dir = first_path.get_base_dir()
+	_on_files_dropped(paths)
+
+func _remember_open_file_dialog_dir() -> void:
+	if _open_file_dialog == null:
+		return
+	if not _open_file_dialog.current_dir.is_empty():
+		_open_file_last_dir = _open_file_dialog.current_dir
+
 func _initialize_settings_panel() -> void:
 	_set_status("Disconnected")
 	genome_view.set_empty_state_status("")
@@ -719,6 +772,7 @@ func _setup_font_size_control() -> void:
 func _connect_ui() -> void:
 	settings_toggle_button.pressed.connect(_toggle_settings)
 	close_settings_button.pressed.connect(_close_settings)
+	open_file_button.pressed.connect(_on_open_file_pressed)
 	pan_left_button.pressed.connect(func() -> void:
 		_play_ui_sound(SoundControllerScript.SOUND_PAN_LEFT)
 		if _app_mode == APP_MODE_COMPARISON:
@@ -862,6 +916,7 @@ func _pan_view_by_fraction(fraction: float, duration: float = 0.35, linear: bool
 func _disable_button_focus() -> void:
 	var controls := [
 		settings_toggle_button,
+		open_file_button,
 		comparison_button,
 		comparison_save_button,
 		comparison_clear_button,

scripts/top_bar_controller.gd

@@ -305,6 +305,7 @@ func apply_topbar_button_font_size() -> void:
 	var topbar_button_size := Vector2(topbar_font_size + 14, topbar_font_size + 14)
 	var topbar_buttons := [
 		host.settings_toggle_button,
+		host.open_file_button,
 		host.comparison_button,
 		host.comparison_save_button,
 		host.comparison_clear_button,