Add transparent undecorated window example

Author: Pebaz

examples/transparent_undecorated_window.py

@@ -0,0 +1,199 @@
+"""
+Requirements:
+- raylib
+- pytweening
+- glm
+
+Windows-Only Requirements:
+- win32gui
+- win32con
+- pywintypes
+"""
+
+import sys, time
+import glm
+import pytweening as tween
+import screeninfo
+from raylib.dynamic import raylib as rl, ffi
+from raylib.colors import *
+
+
+Vec2 = lambda p: glm.vec2(p.x, p.y)
+CTM = lambda: round(time.perf_counter() * 1000)
+
+monitors = screeninfo.get_monitors()
+drag = False
+offset = Vec2(rl.GetMousePosition())
+width = height = 160
+window_vel = glm.vec2()
+window_pos = glm.vec2(monitors[0].width - width, monitors[0].height - height)
+
+rl.SetConfigFlags(
+	rl.FLAG_WINDOW_TRANSPARENT
+	| rl.FLAG_WINDOW_UNDECORATED
+	| rl.FLAG_VSYNC_HINT
+	| rl.FLAG_MSAA_4X_HINT
+)
+rl.InitWindow(width, height, b'')
+rl.SetWindowPosition(int(window_pos.x), int(window_pos.y))
+#rl.SetTargetFPS(500)
+target = rl.LoadRenderTexture(width, height)
+
+# Top-Level Window Support Only On Windows
+if sys.platform == 'win32':
+	import win32gui, win32con, pywintypes
+	
+	# Set window to always top without moving it
+	win32gui.SetWindowPos(
+		pywintypes.HANDLE(ffi.cast('int', rl.GetWindowHandle())),
+		win32con.HWND_TOPMOST,
+		0, 0, 0, 0,
+		win32con.SWP_NOSIZE | win32con.SWP_NOMOVE
+	)
+
+
+#tint = glm.vec4(255, 255, 255, 255) When mouse over, brighten everything fade
+trans = 155
+elapsed = CTM()
+# Generate an 'L' pattern with pixels
+awd = rl.LoadTextureFromImage(rl.LoadImageEx(
+	[
+		WHITE, WHITE,
+		WHITE, [0] * 4
+	],
+	2, 2
+))
+# start1 = [0, 0]    ; end1 = [16, 16]
+# start2 = [0, 160]  ; end2 = [16, 144]
+# start3 = [160, 160]; end3 = [144, 144]
+# start4 = [160, 0]  ; end4 = [144, 16]
+
+start1 = [0, 0]    ; end1 = [8, 8]
+start2 = [0, 160]  ; end2 = [8, 152]
+start3 = [160, 160]; end3 = [152, 152]
+start4 = [160, 0]  ; end4 = [152, 8]
+
+while not rl.WindowShouldClose():
+	frame_start_time = CTM()
+
+	elapsed += 2 * rl.GetFrameTime()
+	if elapsed > 1.0:
+		elapsed = 0
+		start1, end1 = end1, start1
+		start2, end2 = end2, start2
+		start3, end3 = end3, start3
+		start4, end4 = end4, start4
+
+	mouse_pos = Vec2(rl.GetMousePosition())
+
+	if rl.IsKeyReleased(rl.KEY_ENTER):
+		window_pos = glm.vec2()
+		window_vel = glm.vec2()
+	
+	if rl.CheckCollisionPointRec(list(mouse_pos), [0, 0, width, height]):
+		if rl.IsMouseButtonPressed(rl.MOUSE_LEFT_BUTTON):
+			drag = True
+			offset = mouse_pos
+		
+		trans = 255
+	else:
+		trans = 255
+
+	#mouse_pos += window_vel
+	window_vel *= glm.vec2(0.9, 0.9)
+
+	if glm.length(window_vel):
+		window_pos += window_vel
+	 	#rl.SetWindowPosition(int(window_pos.x), int(window_pos.y))
+
+
+	# Find which monitor the square is *currently within*
+	wposx = window_pos.x + width // 2
+	wposy = window_pos.y + height // 2
+	found = False
+	for monitor in reversed(monitors):
+		if wposx > monitor.x and wposx < monitor.x + monitor.width:
+			if wposy > monitor.y and wposy < monitor.y + monitor.height:
+				found = True
+				break
+
+	# If it is out of bounds, find the closest one
+	if not found:
+		sorted_monitors = list(
+			sorted(
+				monitors,
+				key=lambda m: (m.x + m.width // 2) - window_pos.x + (m.y + m.height // 2) - window_pos.y
+			)
+		)
+		monitor = sorted_monitors[0]
+
+	# Constrain window to bounds
+	window_pos.x = max(monitor.x, window_pos.x)
+	window_pos.x = min(monitor.x + monitor.width - width, window_pos.x)
+	window_pos.y = max(monitor.y, window_pos.y)
+	window_pos.y = min(monitor.y + monitor.height - height, window_pos.y)
+	# Set here to "snap" and don't to enable "floating" back into position
+	if not drag:
+		rl.SetWindowPosition(int(window_pos.x), int(window_pos.y))
+
+
+	if drag:
+		window_pos += mouse_pos - offset
+		drag = not rl.IsMouseButtonReleased(rl.MOUSE_LEFT_BUTTON)
+		rl.SetWindowPosition(int(window_pos.x), int(window_pos.y))
+
+		if not drag:
+			window_vel = (mouse_pos - offset) * glm.vec2(1, 0.6) * 0.8
+			if any(glm.isnan(window_vel)):
+				window_vel = glm.vec2()
+
+	rl.BeginDrawing()
+	rl.ClearBackground([0] * 4)
+
+	rl.BeginTextureMode(target)
+	rl.ClearBackground([0] * 4)
+	rl.DrawRectangle(0, 0, width, height, [0] * 4)
+
+	rl.DrawTextureEx(
+		awd, tween.getPointOnLine(*start1, *end1, tween.easeInOutQuad(elapsed)), 0, 32,
+		[255, 200, 0, trans]  # Yellow
+	)
+
+	rl.DrawTextureEx(
+		awd, tween.getPointOnLine(*start2, *end2, tween.easeInOutQuad(elapsed)), -90, 32,
+		[255, 0, 55, trans]  # Red
+	)
+
+	rl.DrawTextureEx(
+		awd, tween.getPointOnLine(*start3, *end3, tween.easeInOutQuad(elapsed)), -180, 32,
+		[100, 200, 55, trans]  # Green
+	)
+
+	rl.DrawTextureEx(
+		awd, tween.getPointOnLine(*start4, *end4, tween.easeInOutQuad(elapsed)), 90, 32,
+		[55, 155, 255, trans]  # Blue
+	)
+
+	rl.EndTextureMode()
+
+	rl.DrawTexturePro(
+		target.texture,
+		[0, 0, width, -height],
+		[0, 0, width, height],
+		[0, 0],
+		0,
+		WHITE
+	)
+
+	for i in range(1000):
+		rl.DrawTextureEx(awd, [-32, -32], 0, 32, WHITE)
+
+	#rl.DrawFPS(0, 0)
+
+	rl.EndDrawing()
+
+	# Sleep any leftover millis
+	time_taken = CTM() - frame_start_time
+	if time_taken < 1000 / 60:
+		time.sleep((1000 / 60 - time_taken) / 1000)
+