I have an rmarkdown document that I am attempting to update to a slidy presentation. I have been able to produce usable reports in this slidy presentation, however, when I click on one of the filters in the datatable, from the datatable package, it advances to the next slide. This is undesirable and I was curious if there was a way to disable this functionality.
To toggle on/off this option in Slidy you just click k letter in the keyboard! Its pretty handy!
Tip: click h letter (alias for help) in the keyboard to check more available instructions too!! ;-)
Related
when selecting large swaths of text from webpage I have to keep left mouse button pressed while searching for the selection's end. It would be nice if the browser would "remember" selection's start point and let me search for the ending point, e.g. by dragging the scrollbar downwards, without pressing the mouse button.
Does a plugin or other implementation of this sort already exist?
The answer to this is OS/Windowing system specific. In most/all systems there is a normal way to have the system perform what you are desiring. An add-on for Firefox is not required.
Windows:
If you click (button down and up, not button down and hold) at the start, or the end of the selection you desire then move the mouse to the other end of the desired selection (scrolling the page as needed to get the the other end) you can then hold the shift key down and click again. This will select the entire region from the first point you clicked to the second point you clicked while holding the shift key. You can adjust the selection by continuing to hold the shift key while doing any of: clicking on a different location, performing a click-drag movement, or using the keyboard cursor keys. This adjustment does not change the point at which you first clicked, just the second, end point.
It is also possible to use the control key to select individual items. This is possible in combination with clicks, double-clicks, and triple-clicks. An example would be to move your mouse around in this paragraph holding the ctrl key down while double-clicking on various words. Your selection will include just the words on which you double-clicked. In some instances, when using only a single ctrl-click to select from a discrete list (e.g. a Windows Explorer folder display), a second ctrl-click on the same item will de-select it. You can also combine the use of ctrl-click and shift-click to create more complex selections with the beginning of the shift-click selection starting at the most recent ctrl-click location.
The Mouse and Pointers page in the Windows Dev Center provides some fairly technical descriptions as guidelines for Windows developers.
Linux (using GNOME):
The interactions are similar to What was described for Windows, but a bit different. Section 10.1.2. Selecting Objects of the GNOME Human Interface Guidelines 2.2.3 provides a good description.
Apple/OSX:
The Macintosh Human Interface Guidelines describes how selections can be made on Apple machines.
When I do a multiple selection from, say, the find dialog (Alt-Enter), I sometimes find that many of the selected bits are off screen, but I'd like to check the context of all of them before I start doing a multiple edit.
Is there a way to, say, cycle through them in the view (without disrupting the selections)?
Probably the easiest way is to not do a "Find All", but instead highlight (or do a single Find) what you're looking for, then use ⌘D on OS X/CtrlD on Win/Lin to sequentially add the next matches. If you come to a match you don't want to select, just use ⌘K,⌘D (or CtrlK,CtrlD) to skip the current instance and go on to the next one. ⌘U (CtrlU) is "soft undo", it moves back to the previous selection in case you made a mistake.
Alternatively, I use a color scheme with a very bright selection color (it's bright blue surrounded by bright green) so that selected regions are very easy to identify. This way I can just glance at the minimap and see where selections are, and scroll through my file quickly to ensure everything looks good. If you find a selection you don't want, you can deselect it with Alt+middle mouse button on Win/Lin, or by ⌘Shift+click on OS X. You may need to set "drag_text": false in your Preferences for it to work, though (I'm not on my Mac at the moment to test).
I've found a working solution, but it's not ideal and only works if you're ok with losing the selections (eg: with multiple selections, hit Right Arrow - you've still got multiple cursors, but the selections are gone).
It goes like this:
Make sure there is no code folding - it appears to interfere with this sort of manipulation of multiple selections.
Use altEnter in the search dialogue to select all occurrences of your regex.
Scroll through the selections until you find one you don't want (MattDMo's Neon plugin is helpful here).
Use a cursor movement to lose the selections (multiple cursors remain).
Use Alt+Left Click on the undesired cursor.
Repeat 5. as required. Making another (multiple) selection can be helpful here to locate the other cursors (eg: Control/CommandShiftLeft Arrow)
If you remove a cursor by mistake, or need to add one, use Control/Command+Left Click
It'd be really handy to have collection KVC accessor snippets in xcode, as they're a pain to do by hand. Has anyone who's been using 4 for a while worked out how to add new ones?
(...we're allowed to talk about it now, right?)
Yes, it's quite easy - you just highlight text you want to use as a snippet and drag it into the snippets area (dragging selected text can be difficult, I find it works better if you drag from the left edge of the editor). It brings up a dialog box asking you to name it.
Also, you can have custom parameters in snippets - if you put the text <#paramName#> anywhere in the code you are dragging, when you use the snippet it will come up as a replaceable parameter that you can tab between just like in the official Snippets.
Also make sure to set a completion prefix, which makes it shorter to activate the snippet as you are typing. The nice thing about using Snippets over other solutions like global system text expanders, is that snippets can also be limited to being valid in a certain area of code - so for example a snippet that filled out a string formatting line can be marked as valid only within a block, not outside a method. That way the completion prefix only hits in areas where it's valid to use.
You can edit a snippet by clicking once on it, a box will come up with the snippet text and some other snippet settings you can edit.
A tip to help you drag the code every time, select text then click + hold (do not move mouse) until mouse pointer changes from "I" to pointer. You'll then be able to drag the selected text to the Code Snippet Library.
Drag the highlighted code to the Snippet library. (It can be stubborn and not want to drag. Holding the mouse button down for a moment before dragging seems to help.)
You can use Snippets to manage code snippets in Xcode. Check out this demo http://www.youtube.com/watch?v=il4kE4diy0k
Simply select the code, the press ALT key and drag it into the code snippets library and rename it there, Make sure to press the ALT key, other than this you won'n be able to drag it.
Recently switched to Textmate on Mac for coding. On PC when ever I want to tab in or out a block of code I just highlight and press tab or shift+tab to move it in our out. It's very useful when you are adding an extra loop or conditional statement to a block of code to keep everything tidy and neatly indented.
On Textmate however when I try this it just replaces my selected text with a tab. So is there a way to do tab and de-tab lines of code in textmate?
Indent: Alt+Tab
Un-Indent: Shift+Alt+Tab
the hotkey is command-left bracket to move left and command-right bracket to move right
(the buttons next to 'p')
heres a link to more hotkeys and such
http://projects.serenity.de/textmate/tutorials/basics/
You can use Shift+Tab to decrease indent; You just need to make and assign a macro. You can reuse this technique to accomplish a great many things.
Enter some text, and intend them, this is mostly for feedback.
Click the Record Macro Button
Use ⇧+⌥+⇥ (aka; Shift + Option + Tab) to decrease the indentation.
Click the record button to stop recording the macro.
Use the Edit menu or ⌃+⌘+M to save your macro;
Saving will prompt you to create a new bundle*, or add your macro to an existing bundle.
Add a Key Equivalent by clicking in the field and pressing ⇧+⇥
Your bundle-macro should look like the one below, simply Save and you're done! TextMate will now decrease indent on ⇧+⇥
*: (as noted by u/PatrickT) Sadly the create new bundle functionality has not yet been implemented, and you must choose to add to an existing bundle. You can still create a bundle via Bundles -> Edit Bundles then Command + N.
As an alternative, you can change the keybindings, see Link
Here is what I did:
Install Link
Go to File -> Open -> User Key Bindings, this will create/edit ~/Libary/KeyBindings/DefaultKeyBinding.dict
Add a binding, for the action enter shiftRight: (indent) manually (this is a TextMate specific action and not in the pre-populated actions list)
Choose a shortcut, I used cmd+alt+right
Do the same for the action shiftLeft: (un-indent, I used cmd+alt+left)
Save and then restart TextMate
I used a shortcut with arrow keys as my right hand is already on the arrow keys when I am selecting multiple lines, so this is a good fit.
The reason why I did it was because I have a german keyboard and alt+tab/alt+shift+tab don't work for me since I am using Witch for app-switching using these exact shortcuts.
EDIT: cmd+alt+left/right don't work when you have multiple tabs open, as they are used for navigate to next or previous tab in TextMate... seems this cannot be changed or overridden (I tried Setting Shortcut Keys in Textmate). Looking for an alternative shortcut now.
Is it possible in Gtk+ to have an add-tab button inline with the tabs in a notebook, ala Opera or Google Chrome? I do know that Opera uses Qt and Chrome uses custom tabs, but is it possible in pure Gtk+?
Well, if it is not possible, there is a simple workaround:
Create a tab with the title "New Tab" or "+" or whatever
Detect when the tab is selected and, when such happens, create a new tab. Focus on that new tab so that the "New tab" tab isn't ever selected.
Sure. Check out the class BrandedNotebook at line 1384 of this file.
Unfortunately Gtk+ doesn't give you a "nice" way to do this, but you should be able to determine the amount of space available, and use it as you wish. In the case of BrandedNotebook, a pixbuf is drawn in the space, and mouse clicks are handled within the coordinates of the pixbuf.