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swing:color [2015/05/05 13:12] gthanos |
swing:color [2021/04/13 05:37] |
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| - | ====== Η κλάση Color ====== | ||
| - | |||
| - | Η κλάση [[https:// | ||
| - | <code java> | ||
| - | public void setBackground(Color bg) | ||
| - | </ | ||
| - | |||
| - | Για παράδειγμα, | ||
| - | <code java> | ||
| - | this.getContnetPane().setBackground(Color.BLUE); | ||
| - | </ | ||
| - | |||
| - | Η κλάση Color παρέχει τα παρακάτω χρώματα ως στατικές μεταβλητές τύπου Color. | ||
| - | <code java> | ||
| - | Color.BLACK | ||
| - | Color.BLUE | ||
| - | Color.CYAN | ||
| - | Color.DARK_GRAY | ||
| - | Color.GRAY | ||
| - | Color.GREEN | ||
| - | Color.LIGHT_GRAY | ||
| - | Color.MAGENTA | ||
| - | Color.ORANGE | ||
| - | Color.PINK | ||
| - | Color.RED | ||
| - | Color.WHITE | ||
| - | Color.YELLOW | ||
| - | </ | ||
| - | |||
| - | Αν θέλετε να ορίσετε τα δικά σας αντικείμενα τύπου Color μπορείτε να το κάνετε με ένα από τους | ||
| - | <code java> | ||
| - | Color(ColorSpace cspace, float[] components, float alpha) | ||
| - | Creates a color in the specified ColorSpace with the color components specified in the float array and the specified alpha. | ||
| - | ------------------------------------------------------------------------- | ||
| - | Color(float r, float g, float b) | ||
| - | Creates an opaque sRGB color with the specified red, green, and blue values in the range (0.0 - 1.0). | ||
| - | ------------------------------------------------------------------------- | ||
| - | Color(float r, float g, float b, float a) | ||
| - | Creates an sRGB color with the specified red, green, blue, and alpha values in the range (0.0 - 1.0). | ||
| - | ------------------------------------------------------------------------- | ||
| - | Color(int rgb) | ||
| - | Creates an opaque sRGB color with the specified combined RGB value consisting of the red component in bits 16-23, the green component in bits 8-15, and the blue component in bits 0-7. | ||
| - | ------------------------------------------------------------------------- | ||
| - | Color(int rgba, boolean hasalpha) | ||
| - | Creates an sRGB color with the specified combined RGBA value consisting of the alpha component in bits 24-31, the red component in bits 16-23, the green component in bits 8-15, and the blue component in bits 0-7. | ||
| - | ------------------------------------------------------------------------- | ||
| - | Color(int r, int g, int b) | ||
| - | Creates an opaque sRGB color with the specified red, green, and blue values in the range (0 - 255). | ||
| - | ------------------------------------------------------------------------- | ||
| - | Color(int r, int g, int b, int a) | ||
| - | Creates an sRGB color with the specified red, green, blue, and alpha values in the range (0 - 255). | ||
| - | </ | ||
| - | |||
| - | ====== Παράδειγμα χρήση της κλάσης Color ====== | ||
| - | |||
| - | Παρακάτω δίνουμε ένα παράδειγμα όπου χρησιμοποιούμε ότι μάθαμε μέχρι τώρα αναφορικά με το Swing framework. Δημιουργούμε ένα παράθυρο και ορίζουμε ως Manager για το content pane του παραθύρου τον [[swing: | ||