<md-toolbar>
  <button md-raised-button title="Hilfe" (click)="showHelp()">
    <md-icon>help</md-icon>
  </button>

  <button md-raised-button (click)="showText = !showText; showTextChange.emit(showText);">
    {{showText ? 'Kein Text' : 'Text'}}
  </button>

  <button md-raised-button title="Spaltenanzahl" (click)="columns = (columns % 3) + 1; cols.emit(columns)">{{(columns %
    3) + 1}} Spalten
  </button>

  <button md-raised-button [disabled]="!rahmen" title="Kartenformat schrittweise vergrößern"
          (click)="textVergroessern()">+ Format
  </button>

  <button md-raised-button [disabled]="!rahmen" title="Kartenformat schrittweise verkleinern"
          (click)="textVerkleinern()">- Format
  </button>

  <button md-raised-button title="Rahmen anzeigen" (click)="toggleFrame()">{{rahmen ? 'Rahmenlos' : 'Rahmen'}}
  </button>

  <button md-raised-button title="neu laden" (click)="neuladen()">Reset</button>

</md-toolbar>

<md-toolbar>
  <button md-raised-button title="Hilfe" (click)="showHelp()">
    <md-icon>help</md-icon>
  </button>

  <button md-raised-button (click)="showText = !showText; showTextChange.emit(showText);">
    {{showText ? 'Kein Text' : 'Text'}}
  </button>

  <button md-raised-button title="Spaltenanzahl" (click)="columns = (columns % 3) + 1; cols.emit(columns)">{{(columns %
    3) + 1}} Spalten
  </button>

  <button md-raised-button [disabled]="!rahmen || !showText" title="Kartenformat schrittweise vergrößern"
          (click)="textVergroessern()">+ Format
  </button>

  <button md-raised-button [disabled]="!rahmen || !showText" title="Kartenformat schrittweise verkleinern"
          (click)="textVerkleinern()">- Format
  </button>

  <button md-raised-button title="Rahmen anzeigen" [disabled]="!showText" (click)="toggleFrame()">{{rahmen ? 'Rahmenlos'
    : 'Rahmen'}}
  </button>

  <button md-raised-button title="neu laden" (click)="neuladen()">Reset</button>

</md-toolbar>

Disable "+ Format", "- Format" and "Rahmenlos" buttons if poem texts are hidden
Disable "+ Format", "- Format" and "Rahmenlos" buttons if poem texts are hidden
