Return to EndEditingGraphicsChange.m CVS log

Up to [NeXTSTEP 3.3 examples] / Examples / AppKit / Draw / graphicsUndo.subproj

Annotation of Examples/AppKit/Draw/graphicsUndo.subproj/EndEditingGraphicsChange.m, revision 1.1.1.1

1.1       root        1: #import "drawundo.h"
                      2: 
                      3: /*
                      4:  * This change is created when the user finishes editing a text
                      5:  * graphic. Undoing this change inserts the re-inserts the text
                      6:  * editing cursor in the text. More significantly, undoing this
                      7:  * change swaps the contents of the TextGraphic back into the
                      8:  * field editor so that it is ready to edit.
                      9:  */
                     10: 
                     11: @interface EndEditingGraphicsChange(PrivateMethods)
                     12: 
                     13: @end
                     14: 
                     15: @implementation EndEditingGraphicsChange
                     16: 
                     17: - initGraphicView:aGraphicView graphic:aGraphic
                     18: {
                     19:     [super init];
                     20:     graphicView = aGraphicView;
                     21:     graphic = aGraphic;
                     22: 
                     23:     return self;
                     24: }
                     25: 
                     26: - free
                     27: {
                     28:     if ([self hasBeenDone] && [graphic isEmpty])
                     29:         [graphic free];
                     30:     return [super free];
                     31: }
                     32: 
                     33: - (const char *)changeName
                     34: {
                     35:     return NXLocalStringFromTable("Operations", "End Editing", NULL, "The operation of ending the editing process and proceding onto some other operation.");
                     36: }
                     37: 
                     38: - undoChange
                     39: {
                     40:     if ([graphic isEmpty])
                     41:        [graphicView insertGraphic:graphic];
                     42:     [graphic prepareFieldEditor];    
                     43:     [NXApp startEditMode];
                     44:     return [super undoChange];
                     45: }
                     46: 
                     47: - redoChange
                     48: {
                     49: /* 
                     50:  * The order of the next two statements is important.
                     51:  * If endEditMode were sent before resignFieldEditor 
                     52:  * it would send resetCursor to the document which would
                     53:  * make the window the first responder which would end
                     54:  * up sending textDidEnd:endChar: to the TextGraphic.
                     55:  * Then in the next line we'd send resignFieldEditor to
                     56:  * the TextGraphic even though it had already resigned 
                     57:  * the field editor.
                     58:  */
                     59:     [graphic resignFieldEditor];
                     60:     [NXApp endEditMode];
                     61:     if ([graphic isEmpty])
                     62:        [graphicView removeGraphic:graphic];
                     63:     return [super redoChange];
                     64: }
                     65: 
                     66: @end

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.