0 1 00:00:04,288 --> 00:00:05,367 Okay, in previous lecture we learned 1 2 00:00:05,367 --> 00:00:08,090 how we can use open file dialogue, and in this lecture 2 3 00:00:08,090 --> 00:00:11,210 we are going to learn how we can use Save File Dialogue. 3 4 00:00:11,210 --> 00:00:12,340 To do that what we need to do here, 4 5 00:00:12,340 --> 00:00:14,860 let me run our application. 5 6 00:00:14,860 --> 00:00:17,850 And it's here, let me add a button here, 6 7 00:00:17,850 --> 00:00:19,700 next to this one, okay. 7 8 00:00:19,700 --> 00:00:22,120 And this is our open file dialog window 8 9 00:00:22,120 --> 00:00:25,403 and now, so what I need to do here. 9 10 00:00:26,630 --> 00:00:29,830 Something wrong, it says, and, file not found. 10 11 00:00:29,830 --> 00:00:32,030 Okay, no problem. 11 12 00:00:32,030 --> 00:00:32,863 And here what we need to do, 12 13 00:00:32,863 --> 00:00:34,550 we need to create another button, right. 13 14 00:00:34,550 --> 00:00:38,170 To do that I will come here and click here, 14 15 00:00:38,170 --> 00:00:40,670 Cntrol + D, duplicate my button okay. 15 16 00:00:40,670 --> 00:00:44,850 And I will name button two, that one will be Save. 16 17 00:00:44,850 --> 00:00:49,620 And my function name will be saveFile, right. 17 18 00:00:49,620 --> 00:00:50,453 And here, what I need to do 18 19 00:00:50,453 --> 00:00:53,517 I need to create this definition, def, saveFile. 19 20 00:00:55,670 --> 00:00:57,210 And here, what I need to do, 20 21 00:00:57,210 --> 00:01:00,110 simply, I will say pass for now, okay. 21 22 00:01:00,110 --> 00:01:05,110 And now, let's run our application and see our buttons. 22 23 00:01:05,150 --> 00:01:08,480 As you see our buttons are here but 23 24 00:01:08,480 --> 00:01:11,900 I want to place my button here, okay, next to the first one. 24 25 00:01:11,900 --> 00:01:12,733 So how can I do that? 25 26 00:01:12,733 --> 00:01:15,160 To do that I need to use here, after pack 26 27 00:01:15,160 --> 00:01:19,340 I will say, side is equal to LEFT okay, 27 28 00:01:19,340 --> 00:01:21,600 and for the other one also, we need to do that, 28 29 00:01:21,600 --> 00:01:24,203 side is equal to LEFT. 29 30 00:01:25,840 --> 00:01:28,223 And now if I run my application, 30 31 00:01:29,950 --> 00:01:32,990 as you see now they are on the left side, this is right 31 32 00:01:32,990 --> 00:01:35,590 but I want to move them somewhere here, okay. 32 33 00:01:35,590 --> 00:01:36,880 So, how can I do that, to do that, 33 34 00:01:36,880 --> 00:01:39,629 I can use x, pad x right? 34 35 00:01:39,629 --> 00:01:43,163 I can add pad for my buttons. 35 36 00:01:44,070 --> 00:01:46,893 Let's do it here for the first button I will say, 36 37 00:01:47,880 --> 00:01:52,410 pad x value, let's say 170, okay. 37 38 00:01:52,410 --> 00:01:55,580 And if I run my application, I mean to fix it again, 38 39 00:01:55,580 --> 00:01:57,850 now and there you see is here will be all 39 40 00:01:57,850 --> 00:02:01,020 the added pad for our first button. 40 41 00:02:01,020 --> 00:02:04,060 But the problem here, when we add pad 41 42 00:02:04,060 --> 00:02:07,120 we add this pad for both sides, what I mean here, 42 43 00:02:07,120 --> 00:02:09,930 the left side and for right side too, 43 44 00:02:09,930 --> 00:02:13,160 we are adding this pad for left and also for right side. 44 45 00:02:13,160 --> 00:02:14,900 So, how can I solve this problem? 45 46 00:02:14,900 --> 00:02:19,700 Now here there is 170 pixels pad, 46 47 00:02:19,700 --> 00:02:24,010 and also for this side also, we have 170 pixels pad. 47 48 00:02:24,010 --> 00:02:26,750 And here we need to use something else here, 48 49 00:02:26,750 --> 00:02:30,710 if you want to add pad only for one side, 49 50 00:02:30,710 --> 00:02:32,700 here what you need to do you need to come here say, 50 51 00:02:32,700 --> 00:02:35,922 and use parentheses and 170, 51 52 00:02:35,922 --> 00:02:39,500 and for the right side lets say 20, okay. 52 53 00:02:39,500 --> 00:02:42,380 And this will solve our problem. 53 54 00:02:42,380 --> 00:02:44,220 As you see now, it's now better, 54 55 00:02:44,220 --> 00:02:48,213 and this side we have 170 pad, 55 56 00:02:49,400 --> 00:02:52,940 for this side we have 20 pixels pad, okay? 56 57 00:02:52,940 --> 00:02:55,140 And after that what I need to do, 57 58 00:02:55,140 --> 00:02:56,823 now I need to create my, 58 59 00:02:58,340 --> 00:03:01,490 I need to create here a new variable, okay, 59 60 00:03:01,490 --> 00:03:05,528 for my save file, here what I will say? 60 61 00:03:05,528 --> 00:03:08,130 I will say myFile, let's name it, okay? 61 62 00:03:08,130 --> 00:03:11,150 Is equal to file dialogue, right. 62 63 00:03:11,150 --> 00:03:12,423 And after here what I will use, 63 64 00:03:12,423 --> 00:03:15,910 I will use ask save as file dialogue, okay. 64 65 00:03:15,910 --> 00:03:18,210 And our first parameter is mode, as you see 65 66 00:03:18,210 --> 00:03:21,220 it says mode, Control + P, and let's check it again. 66 67 00:03:21,220 --> 00:03:26,220 Mode CTR, and here for the first parameter I will say, 67 68 00:03:26,290 --> 00:03:29,910 mode is equal to, I will use w mode, of course. 68 69 00:03:29,910 --> 00:03:31,217 And after that what I need to do, 69 70 00:03:31,217 --> 00:03:36,217 I will use default, default extension, okay. 70 71 00:03:40,630 --> 00:03:44,790 And default extension will be .txt. 71 72 00:03:44,790 --> 00:03:45,623 Why is like that? 72 73 00:03:45,623 --> 00:03:48,010 Because, we have a text editor, right. 73 74 00:03:48,010 --> 00:03:50,440 It's like Notepad okay, and these text editors 74 75 00:03:50,440 --> 00:03:53,540 will use txt files, okay. 75 76 00:03:53,540 --> 00:03:58,540 For example, if you talk about an image editor, 76 77 00:03:58,970 --> 00:04:03,730 the image editor will use extension for jpeg or png, right? 77 78 00:04:03,730 --> 00:04:06,430 But for this kind of application, this editor, 78 79 00:04:06,430 --> 00:04:08,490 it will use txt files, okay? 79 80 00:04:08,490 --> 00:04:13,240 That's why we need to define our extension as txt. 80 81 00:04:13,240 --> 00:04:14,480 Okay, this is important. 81 82 00:04:14,480 --> 00:04:15,830 And after that here what I will say, 82 83 00:04:15,830 --> 00:04:20,830 I will say if myFile is None, 83 84 00:04:22,920 --> 00:04:27,760 that means if the users click Cancel button, okay, 84 85 00:04:27,760 --> 00:04:32,760 and I will say here return, and after that here 85 86 00:04:33,030 --> 00:04:34,100 what I need to do I need to get 86 87 00:04:34,100 --> 00:04:36,060 content of my text editor right. 87 88 00:04:36,060 --> 00:04:38,880 To that I will say, content is equal to 88 89 00:04:38,880 --> 00:04:42,620 text editor.get value, get function, right. 89 90 00:04:42,620 --> 00:04:47,610 And we already learned that so here, I will pass in 1.0, 90 91 00:04:47,610 --> 00:04:50,633 and my second parameter will be end-1c, okay? 91 92 00:04:53,370 --> 00:04:54,357 And after that, what I need to do here 92 93 00:04:54,357 --> 00:04:59,357 I need to use myFile, this is my file name, and write, 93 94 00:04:59,870 --> 00:05:02,960 write function, and I will pass in content. 94 95 00:05:02,960 --> 00:05:04,360 If I run my application now. 95 96 00:05:07,170 --> 00:05:10,940 Now if I say, let's come here and if I say, 96 97 00:05:10,940 --> 00:05:14,513 let's something here, hello. 97 98 00:05:17,850 --> 00:05:22,130 Hello Python, how are you? 98 99 00:05:22,130 --> 00:05:25,363 Okay, something like that, and if I say Save. 99 100 00:05:26,780 --> 00:05:29,713 As you see now this is my Save Dialogue Window. 100 101 00:05:30,610 --> 00:05:31,940 The Cancel is here, by the way, 101 102 00:05:31,940 --> 00:05:33,947 if the user clicks Cancel button, 102 103 00:05:35,970 --> 00:05:39,858 you see we say, if file is None, return, okay. 103 104 00:05:39,858 --> 00:05:42,606 For example, if I click Cancel, you see, 104 105 00:05:42,606 --> 00:05:44,510 I will not get an error, okay. 105 106 00:05:44,510 --> 00:05:46,260 And now let's do it again. 106 107 00:05:46,260 --> 00:05:49,970 Save, and here, let's name it bb, something like that, okay. 107 108 00:05:49,970 --> 00:05:54,450 And if I say Save, and now let's Open it, okay. 108 109 00:05:54,450 --> 00:05:56,660 And let's check it, Open. 109 110 00:05:56,660 --> 00:05:58,970 And as you see now, our bb file is here. 110 111 00:05:58,970 --> 00:06:01,870 Let's click it, and you see it's here, 111 112 00:06:01,870 --> 00:06:05,360 our text is also here, hello, Python how are you? 112 113 00:06:05,360 --> 00:06:08,580 Okay, this is how we can use Save File Dialogue 113 114 00:06:08,580 --> 00:06:09,790 for our applications. 114 115 00:06:09,790 --> 00:06:12,287 For now, that's all, see you in the next.