Discussion :

[mergin]

Bonjour,

Je viens afin d'avoir quelques conseils.

je construit actuellement une application WPF et je souhaiterais n'avoir qu'un seul fichier SVG que de découperais en plusieurs images sans avoir à le convertir en PNG,
la cerise sur le gâteau serait de pouvoir appliquer des filtres pour faire des effets OnHover sur les boutons toujours avec la même image mais bon dans un deuxième temps si c'est possible .
Tout les éléments seraient lister dans un ResourceDictionary afin de les utiliser facilement.

voici comment j'effectuais la tâche avec un png j'aurais au moins souhaité avoir la même chose avec directement le fichier Svg.
J'essaye de faire cela avec la librairie Sharpvectors ( https://github.com/ElinamLLC/SharpVectors ) mais le type SvgIImage ne passe pas dans <ImageBrush ImageSource="ImageSvg"> car pas le bon type et je n'ai pas trouvé d'exemple de découpage.

Code XAML :

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<Style TargetType="Rectangle" x:Key="Save">
        <Setter Property="Height" Value="25"></Setter>
        <Setter Property="Width" Value="25"></Setter>
        <Setter Property="Fill">
            <Setter.Value>
                <ImageBrush ImageSource="{StaticResource Sprite16x16Normal}" ViewboxUnits="Absolute" Viewbox="48,0,16,16"></ImageBrush>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="true">
                <Setter Property="Fill">
                    <Setter.Value>
                        <ImageBrush ImageSource="{StaticResource Sprite16x16Hover}" ViewboxUnits="Absolute" Viewbox="48,0,16,16"></ImageBrush>
                    </Setter.Value>
                </Setter>
            </Trigger>
        </Style.Triggers>
    </Style>

merci d'avance pour votre aide.

[MABROUKI]

bonjour

Il y a un loupé dans cette version 1.5 disponible en nuget package.
Voir la version 1.0 plus ancienne mais fonctionnelle sur le site Code Projet.

Tu peux aussi passer par cet autre outil SvgToXAML en fait un converter qui affiche
sur un éditeur texte le résultat XAML de la conversion du fichier .svg que tu peux "paster" directement dans l’éditeur VS.
https://github.com/BerndK/SvgToXaml

bon code.

[mergin]

Merci pour ta réponse.
Actuellement j'arrive avec Sharpvectors a voir du svg dans le Viewer.
Mais ce qui m’intéresse le plus c'est de pouvoir découper l'image exemple fichier avec des images en 16*16.
Mais je vais regarder de plus près SvgToXaml.

[MABROUKI]

Merci pour ta réponse.
Actuellement j'arrive avec Sharpvectors a voir du svg dans le Viewer.
Mais ce qui m’intéresse le plus c'est de pouvoir découper l'image exemple fichier avec des images en 16*16.
Mais je vais regarder de plus près SvgToXaml.

Ah bah tu as en WPF le CroppedBitmap(rognage).
code .cs

Code :

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private void CutImage(string img)
{
    int count = 0;
 
    BitmapImage src = new BitmapImage();
    src.BeginInit();
    src.UriSource = new Uri(img, UriKind.Relative);
    src.CacheOption = BitmapCacheOption.OnLoad;
    src.EndInit();
 
    for (int i = 0; i < 3; i++)
        for (int j = 0; j < 3; j++)
            objImg[count++] = new CroppedBitmap(src, new Int32Rect(j * 120, i * 120, 120, 120));
}

bon code...

[mergin]

je viens de tester la méthode avec la classe CroppedBitmap mais je n'arrive pas vraiment à un résultat concluant je dois mal m'y prendre
mais peut être que ce n'est pas une bonne idée de convertir au format png pour le rogner ça serait peut être mieux de convertir en xaml et découper le fichier.
voici mon code:

Code :

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  Stream StreamFile = new MemoryStream();
            WpfDrawingSettings settings = new WpfDrawingSettings();
            settings.IncludeRuntime = false;
            settings.TextAsGeometry = true;
 
            //Converter de SharpVector
            StreamSvgConverter stremConvert = new StreamSvgConverter(settings);
            stremConvert.EncoderType = ImageEncoderType.PngBitmap;
            stremConvert.Convert("SpriteImgNormal_16px_16px.svg", StreamFile);
 
            BitmapImage imgc = new BitmapImage();
            imgc.BeginInit();
            imgc.StreamSource = StreamFile;
            imgc.CacheOption = BitmapCacheOption.OnLoad;
            imgc.EndInit();
            //mm unit
            double widthPixel = 16 / imgc.DpiX * milimetresPerInch;
            double HeightPixel = 16 / imgc.DpiY * milimetresPerInch;
            CroppedBitmap testCrop = new CroppedBitmap(imgc, new Int32Rect(0, 0, (int)widthPixel, (int)HeightPixel));
            //je retournes l'objet dans une vue

voici l'image que j'obtiens et ce que je voudrais

[mergin]

j'essaye finalement d'utiliser directement le svg convertie en xaml ça me semble être la meilleur méthode.
Je penses ne pas être loin de réussir mais je ne vois pas pourquoi mes éléments ne s'affiche pas une idée ?

je flag mes objets dans inskape (ex:Name Icone_Save, Icone_Loupe etc.)

Code :

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XDocument rez = null;
WpfDrawingSettings settings = new WpfDrawingSettings();
settings.IncludeRuntime = false;
settings.TextAsGeometry = true;
FileSvgConverter Convert = new FileSvgConverter(settings);
if (Convert.Convert(pathSvgFile))
{
    if (File.Exists(Convert.XamlFile))
    {
        rez = XDocument.Load(Convert.XamlFile);
    }
}
 
 
IEnumerable<XElement> listIcone = docSvg.Root.DescendantsAndSelf().Where(d => d.Name.LocalName == "DrawingGroup" && d.HasAttributes && d.Attributes().FirstOrDefault(att => att.Name.LocalName == "Name" && att.Value.Contains("Icone_")) != null);
//on selectionne seulement ceux avec un attribute Name
List<DrawingGroup> listRez = new List<DrawingGroup>();
foreach (XElement ico in listIcone)
{
    XmlReader red = ico.CreateReader();
    FileSvgReader Convert = new FileSvgReader(settings);
    DrawingGroup Drawing = Convert.Read(red);
    listRez.Add(Drawing);
}
 
 
//j'obtient un liste de Drawing et je place dans un container StackPanel
 foreach (DrawingGroup it in test)
{
    Viewbox ViewIcone = new Viewbox();
    DrawingBrush rez = new DrawingBrush(it);
    Rectangle rect = new Rectangle();
    rect.Fill = rez;
    //rect.Width = 16;
    //rect.Height = 16;
    ViewIcone.Child = rect;
    ContIcone.Children.Add(ViewIcone);
}

voici un exemple d'une icone récupéré dans le XElement

Code XML :

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<?xml version="1.0"?>
    <DrawingGroup x:Name="Icone_Save" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
	<ImageDrawing Rect="0.1710525,212.49164,3.9057806,3.785923">
		<ImageDrawing.ImageSource>
			<svg:EmbeddedBitmapSource Data="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" xmlns:svg="http://sharpvectors.codeplex.com/runtime/" />
		</ImageDrawing.ImageSource>
	</ImageDrawing>
	<GeometryDrawing x:Name="rect5070" Brush="#FF697C92">
		<GeometryDrawing.Geometry>
			<RectangleGeometry RadiusX="0.2085" RadiusY="0.2085" Rect="0.1711,212.4916,3.9058,3.7859" />
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Merci encore pour les réponses .

[mergin]

j'ai résolue mon problème

le code suivant ne marchait pas. L'objet DrawingGroup était vide.

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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 XmlReader red = ico.CreateReader();
    FileSvgReader Convert = new FileSvgReader(settings);
    DrawingGroup Drawing = Convert.Read(red);

J'ai donc utilisé directement le Xaml générer par le converter que j'ai splitté pour ensuite le mettre dans un canvas.