L’élément cadre HTML

It is possible to add a frame that displays the contents of a website or even create and style your own HTML page and display it! You can add a picture with the addHtml Add HTML following items creation instructions and manipulate it the same way as exposed in Interacting with layout items.

The HTML item can be customized using its Item Properties panel. Other than the items common properties, this feature has the following functionalities (see figure_layout_html):

../../../../_images/html_properties.png

Cadre HTML, panneau propriétés de l’objet

Source du HTML

The HTML Source group of the HTML frame Item Properties panel provides the following functionalities (see figure_layout_html_ppt):

../../../../_images/html_source.png

Cadre HTML, propriétés de la Source du HTML

  • In URL you can enter the URL of a webpage you copied from your Internet browser or select an HTML file using the Browse button. There is also the option to use the dataDefined Data-defined override button, to provide a URL from the contents of an attribute field of a table or using a regular expression.
  • Dans Source, vous pouvez entrer un texte dans la zone de texte avec quelques balises HTML ou proposer une page HTML entière.
  • The Insert an Expression button can be used to insert an expression like [%Year($now)%] in the Source textbox to display the current year. This button is only activated when radiobutton Source is selected. After inserting the expression click somewhere in the textbox before refreshing the HTML frame, otherwise you will lose the expression.
  • Activez checkbox Évaluer l’expression QGIS dans la source du HTML pour voir le résultat de l’expression que vous avez incluse, autrement vous verrez l’expression à la place.
  • Use the Refresh HTML button to refresh the HTML frame(s) and see the result of changes.

Cadres

The Frames group of the HTML frame Item Properties panel provides the following functionalities (see figure_layout_html_frames):

../../../../_images/html_frame.png

Cadre HTML, propriétés des Cadres

  • Avec Mode de redimensionnement, vous pouvez sélectionner la façon de rendre le contenu HTML :
    • Use existing frames displays the result in the first frame and added frames only.
    • Extend to next page will create as many frames (and corresponding pages) as necessary to render the height of the web page. Each frame can be moved around on the layout. If you resize a frame, the webpage will be divided up between the other frames. The last frame will be trimmed to fit the web page.
    • Repeat on every page will repeat the upper left of the web page on every page in frames of the same size.
    • Repeat until finished will also create as many frames as the Extend to next page option, except all frames will have the same size.
  • Use the Add Frame button to add another frame with the same size as selected frame. If the HTML page does not fit in the first frame it will continue in the next frame when you use Resize mode or Use existing frames.
  • Activate checkbox Don’t export page if frame is empty prevents the page from being exported when the frame has no HTML contents. This means all other layout items, maps, scale bars, legends etc. will not be visible in the result.
  • Activez checkbox Ne pas afficher le fond si le cadre est vide empêche que le cadre HTML soit affiché si le cadre est vide.

Utiliser des sauts de page intelligents

The Use smart page breaks dialog and User style sheet dialog of the HTML frame Item Properties panel provides the following functionalities (see figure_layout_html_breaks):

../../../../_images/html_breaks.png

HTML frame, Use smart page breaks and User style sheet properties

  • Activez checkbox Utiliser des sauts de pages intelligents pour empêcher le contenu du cadre html de se casser à mi-chemin d’une ligne de texte afin qu’il continue bien dans le cadre suivant.

  • Paramètre la Distance maximale autorisée lors du calcul de l’emplacement du saut de page dans le html. Cette distance est la quantité maximale d’espace vide autorisé dans le bas du cadre après calcul de l’emplacement optimal du saut de page. Indiquer une grande valeur permettra de mieux définir l’emplacement du saut de page mais une plus grande quantité d’espace vide sera présent dans le bas des cadres. Cette valeur est utilisée uniquement lorsque Utiliser des sauts de page intelligents est activé.

  • Activate checkbox User style sheet to apply HTML styles that often is provided in cascading style sheets. An example of style code is provided below to set the color of <h1> header tag to green and set the font and font size of text included in paragraph tags <p>.

    h1 {color: #00ff00;
    }
    p {font-family: "Times New Roman", Times, serif;
       font-size: 20px;
    }
    
  • Use the Update HTML button to see the result of the style sheet settings.