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performance: pre-compute tiles

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This commit is contained in:
Gregory.Shrago
2015-04-21 05:00:40 +03:00
parent 73285eb9c4
commit c0a12ce86a
1 changed files with 47 additions and 32 deletions
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platform/platform-impl/src/com/intellij/openapi/wm/impl/PaintersHelper.java
+47 -32
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@@ -187,22 +187,38 @@ final class PaintersHelper implements Painter.Listener {
int w = image.getWidth(null);
int h = image.getHeight(null);
if (w <= 0 || h <= 0) return;
if (fillType == FillType.SCALE) {
// performance: pre-compute scaled image or tiles
if (fillType == FillType.SCALE || fillType == FillType.TILE) {
int sw0 = scaled == null ? -1 : scaled.getWidth(null);
int sh0 = scaled == null ? -1 : scaled.getHeight(null);
boolean useWidth = cw * h > ch * w;
int sw = useWidth ? cw : w * ch / h;
int sh = useWidth ? h * cw / w : ch;
int sw, sh;
if (fillType == FillType.SCALE) {
boolean useWidth = cw * h > ch * w;
sw = useWidth ? cw : w * ch / h;
sh = useWidth ? h * cw / w : ch;
}
else {
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);
}
Graphics2D gg = scaled.createGraphics();
gg.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
gg.setComposite(AlphaComposite.Src);
gg.drawImage(image, 0, 0, sw, sh, null);
if (fillType == FillType.SCALE) {
gg.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
gg.drawImage(image, 0, 0, sw, sh, null);
}
else {
for (int x = 0; x < sw; x += w) {
for (int y = 0; y < sh; y += h) {
UIUtil.drawImage(gg, image, x, y, null);
}
}
}
gg.dispose();
}
w = sw;
@@ -218,36 +234,35 @@ final class PaintersHelper implements Painter.Listener {
gg.dispose();
}
GraphicsConfig cfg = new GraphicsConfig(g).setAlpha(alpha);
g.setColor(g.getBackground());
if (fillType == FillType.CENTER || fillType == FillType.BG_CENTER || fillType == FillType.SCALE ||
int x, y;
if (fillType == FillType.CENTER || fillType == FillType.BG_CENTER ||
fillType == FillType.SCALE || fillType == FillType.TILE ||
fillType == FillType.TOP_CENTER || fillType == FillType.BOTTOM_CENTER) {
int x = i.left + (cw - w) / 2;
int y = fillType == FillType.TOP_CENTER? i.top :
fillType == FillType.BOTTOM_CENTER? ch0 - i.bottom - h :
i.top + (ch - h) / 2;
UIUtil.drawImage(g, scaled, x, y, null);
if (fillType == FillType.BG_CENTER) {
g.setColor(component.getBackground());
g.fillRect(0, 0, x, ch0);
g.fillRect(x, 0, w, h);
g.fillRect(x + w, 0, x, ch0);
g.fillRect(x, y + h, w, y);
}
x = i.left + (cw - w) / 2;
y = fillType == FillType.TOP_CENTER ? i.top :
fillType == FillType.BOTTOM_CENTER ? ch0 - i.bottom - h :
i.top + (ch - h) / 2;
}
else if (fillType == FillType.TOP_LEFT || fillType == FillType.TOP_RIGHT ||
fillType == FillType.BOTTOM_LEFT || fillType == FillType.BOTTOM_RIGHT) {
int x = fillType == FillType.TOP_LEFT || fillType == FillType.BOTTOM_LEFT ? i.left : cw0 - i.right - w;
int y = fillType == FillType.TOP_LEFT || fillType == FillType.TOP_RIGHT ? i.top : ch0 - i.bottom - h;
UIUtil.drawImage(g, scaled, x, y, null);
x = fillType == FillType.TOP_LEFT || fillType == FillType.BOTTOM_LEFT ? i.left : cw0 - i.right - w;
y = fillType == FillType.TOP_LEFT || fillType == FillType.TOP_RIGHT ? i.top : ch0 - i.bottom - h;
}
else if (fillType == FillType.TILE) {
for (int x = i.left; x < cw; x += w) {
for (int y = i.top; y < ch; y += h) {
UIUtil.drawImage(g, scaled, x, y, null);
}
}
else {
return;
}
GraphicsConfig cfg = new GraphicsConfig(g).setAlpha(alpha);
UIUtil.drawImage(g, scaled, x, y, null);
if (fillType == FillType.BG_CENTER) {
g.setColor(component.getBackground());
g.fillRect(0, 0, x, ch0);
g.fillRect(x, 0, w, h);
g.fillRect(x + w, 0, x, ch0);
g.fillRect(x, y + h, w, y);
}
cfg.restore();
}