position

How to get cardinal mouse direction from mouse coordinates

由 家住魔仙堡 提交于 2019-12-19 18:23:30
问题 is it possible to get the mouse direction (Left, Right, Up, Down) based on mouse last position and current position? I have written the code to calculate the angle between two vectors but I am not sure if it is right. Can someone please point me to the right direction? public enum Direction { Left = 0, Right = 1, Down = 2, Up = 3 } private int lastX; private int lastY; private Direction direction; private void Form1_MouseDown(object sender, MouseEventArgs e) { lastX = e.X; lastY = e.Y; }

CSS Positioning Absolute within table cells not working in Firefox

由 这一生的挚爱 提交于 2019-12-19 16:50:08
问题 I cannot figure out this positioning problem in Firefox. It doesn't seem to follow the absolute positioning rule. Is there something I'm doing that shouldn't be done, but some browesers handle it and some don't? JS Fiddle: Original - http://jsfiddle.net/g9qzh/ Updated - http://jsfiddle.net/g9qzh/2/ Works in IE, Chrome, Safari, Opera Here's the actual code. Let me know if I'm not following some kind of standard I don't know about. HTML: <table> <tr> <td> <div id="three">Three</div> <div id=

Position fixed not working on Windows Safari

由 荒凉一梦 提交于 2019-12-19 09:54:12
问题 I had a problem with gallery that is position:fixed; and the site content is scrolling over it. That position fixed worked in every single browser except in Safari on Windows 7 (yes it worked even in IE8, and Safari on Mac). Top is defined, but yet it still act as a position relative and scroll down with the rest of the content. 回答1: The solution was to define the z-index on that position:fixed; element. For some reason only on Windows Safari position:fixed; didn't work until any z-index was

CSS - position absolute & document flow

由 ↘锁芯ラ 提交于 2019-12-19 09:25:32
问题 Yes, I know doesn't work with position absolute, but is there a way to display elements "below" (after in code) not behind them? Example: <img src="image.jpg" style="width: 500px; height: 400px; position: absolute; top: 0;" /> <h2 style="padding: 15px" >This text is behind not below the image</h2> Is there a way of displaying the h2 below the image excepting positioning it absolutely too? Example: http://jsfiddle.net/fDGHU/1/ (yes, I have to use absolute in my case, and dynamic margined

JavaFX: how to set correct tooltip position?

由 孤街醉人 提交于 2019-12-19 07:49:30
问题 I have a TextField for which I want a Tooltip to be shown under some circumstances. After performing checks I run the followig code: textFieldUsername.setTooltip(new Tooltip("Enter username!")); textFieldUsername.getTooltip().setAutoHide(true); textFieldUsername.getTooltip().show(textFieldUsername, 1, 1); So when somebody tries to login with empty username he gets a prompting Tooltip over the "username" TextField . But when it comes to action, the Tooltip pops up in the top left corner of the

How can I prevent HTML elements from overlapping or sliding under one another?

由 独自空忆成欢 提交于 2019-12-19 06:32:06
问题 I am trying to layout a page in three columns, I want the middle column to resize with the page but the problem is that if the page is made very narrow, the left column either slides below the middle one (if I use float to position the columns) or it overlaps it (if I use absolute positioning). I want the right column to "bump" into the middle one once that one's min width is reached and stop moving, at this point the page should start showing a horizontal scroll bar. Following is my attempt

How can I prevent HTML elements from overlapping or sliding under one another?

由 戏子无情 提交于 2019-12-19 06:31:45
问题 I am trying to layout a page in three columns, I want the middle column to resize with the page but the problem is that if the page is made very narrow, the left column either slides below the middle one (if I use float to position the columns) or it overlaps it (if I use absolute positioning). I want the right column to "bump" into the middle one once that one's min width is reached and stop moving, at this point the page should start showing a horizontal scroll bar. Following is my attempt

google map infobox position

由 ∥☆過路亽．° 提交于 2019-12-19 06:03:28
问题 I've been googling that question for some time and all I got is headache. I add google marker with infobox on my google map, but the infobox is located lower than marker, how ever I would really appreciate it to be over the marker. Does anyone know how to do it? And please don't gove some links to somewhere, I was seeing it for a loooong time today. Thank you in advance. 回答1: set the alignBottom -property of the infoBox to true (default is false ). For further adjustments of the position use

position笔记

由 故事扮演 提交于 2019-12-19 05:42:14
page1 css3对position属性的相关定义： static：无特殊定位，对象遵循正常文档流。top，right，bottom，left等属性不会被应用。 relative：对象遵循正常文档流，但将依据top，right，bottom，left等属性在正常文档流中偏移位置。而其层叠通过z-index属性定义。 absolute：对象脱离正常文档流，使用top，right，bottom，left等属性进行绝对定位。而其层叠通过z-index属性定义。 fixed：对象脱离正常文档流，使用top，right，bottom，left等属性以窗口为参考点进行定位，当出现滚动条时，对象不会随着滚动。而其层叠通过z-index属性定义。*/ page2 static(无特殊定位，它是html元素默认的定位方式，即我们不设定元素的position属性时默认的position值就是static， 它遵循正常的文档流对象，对象占用文档空间，该定位方式下，top、right、bottom、left、z-index等属性是无效的，但也不会报错) 　　　　　* { margin: 0; padding: 0; } .static-test { width: 100px; height: 60px; border: 1px solid red; display: inline-block; left

Android ListView y position

由 喜夏-厌秋 提交于 2019-12-19 04:50:06
问题 It seems like ListView doesn't expose its y-position in the same way a ScrollView does. In other words: I need to remember the exact position the ListView was scrolled to and set it when I return to the activity. Just to clarify: I don't need the selected item... that's pretty straight forward. I need to restore the exact pixel-wise y position on the ListView. Thanks! 回答1: I've used this successfully when saving (in onSaveInstanceState) and restoring (onCreate), when switching orientations:
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