- Proves de editor en PyQt5

editor/editor.py

@@ -0,0 +1,79 @@
+import math
+import sys
+
+from PIL import Image
+from PyQt5.QtCore import Qt
+from PyQt5.QtGui import QPixmap, QImage, qRgb
+from PyQt5.QtWidgets import (
+    QApplication,
+    QLabel,
+    QMainWindow
+)
+
+class Surface:
+    def __init__(self, image_file):
+        im = Image.open(image_file)
+        self.pixels = im.tobytes()
+        self.w = im.width
+        self.h = im.height
+
+class Palette:
+    def __init__(self, image_file):
+        im = Image.open(image_file)
+        pal = im.getpalette()
+        pal_size = math.floor(len(pal)/3)
+        self.colors = []
+        for i in range(pal_size):
+            self.colors.append(qRgb(pal[i*3],pal[1+i*3],pal[2+i*3]))
+
+class Canvas:
+    def __init__(self, palette):
+        # Crear el QImage
+        self.img = QImage(320, 240, QImage.Format.Format_Indexed8)
+
+        # Omplir la paleta
+        for i in range(len(palette.colors)):
+            self.img.setColor(i, palette.colors[i])
+
+        for y in range(240):
+            for x in range(320):
+                self.img.setPixel(x,y,20)
+
+        # Preparem els indices de sustitucio de la paleta
+        self.pal = bytearray(256)
+        for i in range(256):
+            self.pal[i] = i
+
+    def blt(self, dx, dy, surface, sx, sy, sw, sh, color):
+        self.pal[1] = color
+        for y in range(sh):
+            for x in range(sw):
+                col = self.pal[surface.pixels[(sx+x)+(sy+y)*surface.w]]
+                if col != 0:
+                    self.img.setPixel(dx+x,dy+y,col)
+        self.pal[1] = 1
+
+class MainWindow(QMainWindow):
+    def __init__(self):
+        super(MainWindow, self).__init__()
+
+        self.setWindowTitle("My App")
+
+        label = QLabel("Hello")
+
+        surface = Surface("data/gat.gif")
+        paleta = Palette("data/test.gif")
+        canvas = Canvas(paleta)
+        canvas.blt(10, 10, surface, 0, 0, 22, 35, 18)
+
+        label.setPixmap(QPixmap.fromImage(canvas.img).scaled(640,480, Qt.IgnoreAspectRatio, Qt.FastTransformation))
+
+        label.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
+        label.setScaledContents(True)
+        self.setCentralWidget(label)
+
+app = QApplication(sys.argv)
+window = MainWindow()
+window.show()
+app.exec()
+