caret

问题 Is there a method to return the position of the character in the JTextField. What I mean by that is if I have a JTextField with some values in it. For example, the field contains value ABCDEFJ. The user decides to put the cursor right after the character 'C' to enter a new value. Is there a method to get position where he enters the new character. In this example, that would return a 3. 回答1: JTextField.getCaretPosition() JTextField.setCaretPosition(int pos) 回答2: Try getting use of

问题 Specifically when does ^ mean "match start" and when does it mean "not the following" in regular expressions? From the Wikipedia article and other references, I've concluded it means the former at the start and the latter when used with brackets, but how does the program handle the case where the caret is at the start and at a bracket? What does, say, ^[b-d]t$ match? 回答1: ^ only means "not the following" when inside and at the start of [] , so [^...] . When it's inside [] but not at the start

问题 Specifically when does ^ mean "match start" and when does it mean "not the following" in regular expressions? From the Wikipedia article and other references, I've concluded it means the former at the start and the latter when used with brackets, but how does the program handle the case where the caret is at the start and at a bracket? What does, say, ^[b-d]t$ match? 回答1: ^ only means "not the following" when inside and at the start of [] , so [^...] . When it's inside [] but not at the start

问题 Well, I need to replace a word, in a div contentEdible property on, by the same word but formatted... Like this: <div> My balls are big </div> To this (replace the word: balls): <div> My <font style="color:blue;">balls</font> are big </div> In a contentEditable this happens dinamically, while the user type the text the replacements happens. I think that a simple event onkeydown, onkeyup, or onkey press, can solve this part. But, the trouble is with the caret, that after all that i tryed, it

问题 I would like to hide a caret from a RichEdit(50W) with ES_READONLY style specified. It's pretty confusing for the user, when the caret is blinking and the user can't type. I tried to hide the caret using HideCaret() function, however it doesn't work for me with following code: LRESULT CALLBACK ChatMessaegsSubclassProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) // Subclassed control { LRESULT ret = CallWindowProc(WndProc_ChatMessages, hwnd, msg, wParam, lParam); switch(msg) { //Also

问题 I am trying to set TextBox caret position according to the mouse coordinates when hovering over the TextBox. I can obtain the mouse coordinates relative to the TextBox by using Mouse.GetPosition(this.MyTextBox) but I need help translating those coordinates into the caret position. Any help would be greatly appreciated! 回答1: MyTextBox.CaptureMouse(); MyTextBox.CaretIndex = MyTextBox.GetCharacterIndexFromPoint(Mouse.GetPosition(MyTextBox), true); 回答2: MyTextBox.GetCharacterIndexFromPoint(..)

问题 While displaying a pop-up window above a wysiwyg editor, the caret (cursor in text area) is still visible under the pop-up window. Any ideas? 回答1: First idea coming to my mind is to blur() the textarea or put the focus elsewhere. Of course, I suppose the WYSIWYG editor uses a simple textarea, not a more complex DHTML component. 来源： https://stackoverflow.com/questions/293657/how-to-hide-a-caret-in-ie-javascript

问题 I am building a KNN model to predict housing prices. I'll go through my data and my model and then my problem. Data - # A tibble: 81,334 x 4 latitude longitude close_date close_price <dbl> <dbl> <dttm> <dbl> 1 36.4 -98.7 2014-08-05 06:34:00 147504. 2 36.6 -97.9 2014-08-12 23:48:00 137401. 3 36.6 -97.9 2014-08-09 04:00:40 239105. Model - library(caret) training.samples <- data$close_price %>% createDataPartition(p = 0.8, list = FALSE) train.data <- data[training.samples, ] test.data <- data[

问题 I have a contenteditable div and it contains other tags and not only plain text. Only one @ is allowed in. How can I get the range of the characters between @ and caret if such a range exists? 回答1: Ha that was easier than I thought!. Based on this easy to overlook question: Div "contenteditable" : get and delete word preceding caret I forked its jsfiddle and here is mine working as expected: http://jsfiddle.net/52m2thu2/1/ function getWordBetweenAtAndCaret(containerEl) { var preceding = "",

问题 I have the following requirements: I need a scrollable JTextPane. The user may type into this text pane, or text may be inserted into it that is not typed by the user. Think something like an IM window. Although the window must be scrollable to allow the user to review text previously typed, the caret should never move from its position at the end of the text. Any text entered by the user will always appear at the end. In JTextPane, when the user scrolls with the scroll bar, the caret does