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

1.1       root        1: #import "drawundo.h"
                      2: 
                      3: @interface UnlockGraphicsChange(PrivateMethods)
                      4: 
                      5: - undoDetails;
                      6: 
                      7: @end
                      8: 
                      9: @implementation UnlockGraphicsChange
                     10: 
                     11: - (const char *)changeName
                     12: {
                     13:     return NXLocalStringFromTable("Operations", "Unlock", NULL, "The operation of unlocking all the graphical entities which were previously locked down (see Lock).");
                     14:     return "Unlock";
                     15: }
                     16: 
                     17: - saveBeforeChange
                     18: {
                     19:     List *allGraphics;
                     20:     int i, count;
                     21:     id graphic;
                     22: 
                     23:     graphics = [[List alloc] init];
                     24: 
                     25:     allGraphics = [graphicView graphics];
                     26:     count = [allGraphics count];
                     27:     for (i = 0; i < count; i++) {
                     28:         graphic = [allGraphics objectAt:i];
                     29:        if ([graphic isLocked])
                     30:            [graphics addObject:graphic];
                     31:     }
                     32: 
                     33:     if ([graphics count] == 0)
                     34:         [self disable];
                     35:        
                     36:     return self;
                     37: }
                     38: 
                     39: - redoChange
                     40: {
                     41:     [graphics makeObjectsPerform:@selector(unlock)];
                     42:     [graphicView resetLockedFlag];
                     43: 
                     44:     return [super redoChange];
                     45: }
                     46: 
                     47: - changeDetailClass
                     48: {
                     49:     return nil;
                     50: }
                     51: 
                     52: - undoDetails
                     53: {
                     54:     int i, count;
                     55:     List *selectedGraphics;
                     56:     id graphic;
                     57:     
                     58:     selectedGraphics = [graphicView selectedGraphics];
                     59:     count = [graphics count];
                     60:     for (i = 0; i < count; i++) {
                     61:         graphic = [graphics objectAt:i];
                     62:        [graphic lock];
                     63:        [graphic deselect];
                     64:        [selectedGraphics removeObject:graphic];
                     65:     }
                     66:     [graphicView resetLockedFlag];
                     67: 
                     68:     return self;
                     69: }
                     70: 
                     71: @end

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