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gdm: use integer coordinates for login dialog actors

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If the login screen actors aren't placed at pixel
boundaries then they will show up blurred with fuzzy
text.

This commit ensures all actor allocations are floored
to integer coordinates.

https://bugzilla.gnome.org/show_bug.cgi?id=746912
This commit is contained in:
Clément Guérin 2015-03-27 22:19:47 +01:00 committed by Ray Strode
parent e87656af16
commit 8e802fd32f
1 changed files with 11 additions and 11 deletions
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22
js/gdm/loginDialog.js
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@ -506,7 +506,7 @@ const LoginDialog = new Lang.Class({
let [minWidth, minHeight, natWidth, natHeight] = this._bannerView.get_preferred_size();
let centerX = dialogBox.x1 + (dialogBox.x2 - dialogBox.x1) / 2;
actorBox.x1 = centerX - natWidth / 2;
actorBox.x1 = Math.floor(centerX - natWidth / 2);
actorBox.y1 = dialogBox.y1 + Main.layoutManager.panelBox.height;
actorBox.x2 = actorBox.x1 + natWidth;
actorBox.y2 = actorBox.y1 + natHeight;
@ -520,7 +520,7 @@ const LoginDialog = new Lang.Class({
let [minWidth, minHeight, natWidth, natHeight] = this._logoBin.get_preferred_size();
let centerX = dialogBox.x1 + (dialogBox.x2 - dialogBox.x1) / 2;
actorBox.x1 = centerX - natWidth / 2;
actorBox.x1 = Math.floor(centerX - natWidth / 2);
actorBox.y1 = dialogBox.y2 - natHeight;
actorBox.x2 = actorBox.x1 + natWidth;
actorBox.y2 = actorBox.y1 + natHeight;
@ -535,8 +535,8 @@ const LoginDialog = new Lang.Class({
let centerX = dialogBox.x1 + (dialogBox.x2 - dialogBox.x1) / 2;
let centerY = dialogBox.y1 + (dialogBox.y2 - dialogBox.y1) / 2;
actorBox.x1 = centerX - natWidth / 2;
actorBox.y1 = centerY - natHeight / 2;
actorBox.x1 = Math.floor(centerX - natWidth / 2);
actorBox.y1 = Math.floor(centerY - natHeight / 2);
actorBox.x2 = actorBox.x1 + natWidth;
actorBox.y2 = actorBox.y1 + natHeight;
@ -591,7 +591,7 @@ const LoginDialog = new Lang.Class({
let leftOverTopSpace = leftOverYSpace / 2;
// Then, shift the banner into the middle of that extra space
let yShift = leftOverTopSpace / 2;
let yShift = Math.floor(leftOverTopSpace / 2);
bannerAllocation.y1 += yShift;
bannerAllocation.y2 += yShift;
@ -617,8 +617,8 @@ const LoginDialog = new Lang.Class({
let centerGap = wideSpacing / 8;
// place the banner along the left edge of the center margin
bannerAllocation.x2 = centerX - centerGap / 2;
bannerAllocation.x1 = bannerAllocation.x2 - wideBannerWidth;
bannerAllocation.x2 = Math.floor(centerX - centerGap / 2);
bannerAllocation.x1 = Math.floor(bannerAllocation.x2 - wideBannerWidth);
// figure out how tall it would like to be and try to accomodate
// but don't let it get too close to the logo
@ -626,11 +626,11 @@ const LoginDialog = new Lang.Class({
let maxWideHeight = dialogHeight - 3 * logoHeight;
wideBannerHeight = Math.min(maxWideHeight, wideBannerHeight);
bannerAllocation.y1 = centerY - wideBannerHeight / 2;
bannerAllocation.y1 = Math.floor(centerY - wideBannerHeight / 2);
bannerAllocation.y2 = bannerAllocation.y1 + wideBannerHeight;
// place the auth prompt along the right edge of the center margin
authPromptAllocation.x1 = centerX + centerGap / 2;
authPromptAllocation.x1 = Math.floor(centerX + centerGap / 2);
authPromptAllocation.x2 = authPromptAllocation.x1 + authPromptWidth;
} else {
// If we aren't going to do a wide view, then we need to limit
@ -640,7 +640,7 @@ const LoginDialog = new Lang.Class({
leftOverYSpace += bannerHeight;
// Then figure out how much of that space is up top
let availableTopSpace = leftOverYSpace / 2;
let availableTopSpace = Math.floor(leftOverYSpace / 2);
// Then give all of that space to the banner
bannerAllocation.y2 = bannerAllocation.y1 + availableTopSpace;
@ -651,7 +651,7 @@ const LoginDialog = new Lang.Class({
let leftOverYSpace = dialogHeight - userSelectionHeight - logoHeight;
if (leftOverYSpace > 0) {
let topExpansion = leftOverYSpace / 2;
let topExpansion = Math.floor(leftOverYSpace / 2);
let bottomExpansion = topExpansion;
userSelectionAllocation.y1 -= topExpansion;