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Wallpaper: always recreate scaled image (esp. on contentLost)

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This commit is contained in:
Gregory.Shrago
2016-04-30 01:56:20 +03:00
parent 631964661f
commit 2178140fc7
1 changed files with 31 additions and 12 deletions
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platform/platform-impl/src/com/intellij/openapi/wm/impl/PaintersHelper.java
+31 -12
View File
@@ -160,6 +160,9 @@ final class PaintersHelper implements Painter.Listener {
String value = System.getProperty(propertyName);
if (!Comparing.equal(value, current)) {
current = value;
if (scaled != null) {
scaled.flush();
}
image = scaled = null;
insets = JBUI.emptyInsets();
loadImage(value);
@@ -232,10 +235,9 @@ final class PaintersHelper implements Painter.Listener {
sw = cw < w ? w : (cw + w) / w * w;
sh = ch < h ? h : (ch + h) / h * h;
}
if (sw0 != sw || sh0 != sh || scaled != null && scaled.contentsLost()) {
if (sw0 != sw || sh0 != sh || scaled == null) {
scaled = createImage(g, sw, sh);
}
boolean rescale = sw0 != sw || sh0 != sh;
while ((scaled = validateImage(scaled, g)) == null || rescale) {
scaled = createImage(g, sw, sh);
Graphics2D gg = scaled.createGraphics();
gg.setComposite(AlphaComposite.Src);
if (fillType == FillType.SCALE) {
@@ -251,18 +253,19 @@ final class PaintersHelper implements Painter.Listener {
}
}
gg.dispose();
rescale = false;
}
w = sw;
h = sh;
}
else if (scaled == null || scaled.contentsLost()) {
if (scaled == null) {
else {
while ((scaled = validateImage(scaled, g)) == null) {
scaled = createImage(g, w, h);
Graphics2D gg = scaled.createGraphics();
gg.setComposite(AlphaComposite.Src);
gg.drawImage(image, 0, 0, null);
gg.dispose();
}
Graphics2D gg = scaled.createGraphics();
gg.setComposite(AlphaComposite.Src);
gg.drawImage(image, 0, 0, null);
gg.dispose();
}
int x, y;
@@ -297,15 +300,31 @@ final class PaintersHelper implements Painter.Listener {
cfg.restore();
}
@Nullable
private static VolatileImage validateImage(@Nullable VolatileImage scaled, @NotNull Graphics2D g) {
if (scaled == null) return null;
boolean b1 = scaled.validate(g.getDeviceConfiguration()) != VolatileImage.IMAGE_OK;
boolean b2 = scaled.contentsLost();
if (b1 || b2) {
scaled.flush();
return null;
}
return scaled;
}
@NotNull
private static VolatileImage createImage(Graphics2D g, int w, int h) {
VolatileImage image;
GraphicsConfiguration configuration = g.getDeviceConfiguration();
try {
return configuration.createCompatibleVolatileImage(w, h, new ImageCapabilities(true), Transparency.TRANSLUCENT);
image = configuration.createCompatibleVolatileImage(w, h, new ImageCapabilities(true), Transparency.TRANSLUCENT);
}
catch (Exception e) {
return configuration.createCompatibleVolatileImage(w, h, Transparency.TRANSLUCENT);
image = configuration.createCompatibleVolatileImage(w, h, Transparency.TRANSLUCENT);
}
// validate first time (it's always RESTORED & cleared)
image.validate(configuration);
return image;
}
}
}