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qtoolbutton/qpushbutton icon based on button's size

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  • U user4592357

    sorry, should've mentioned this (it's why my buttons can't use the available space). i use this code:

    setMinimumSize(width, height);
    setIconSize(QSize(width, height));
    

    i want to have the pictures of brush styles on the buttons. here's the current code:

    void PushButton::drawPattern(int width, int height, const QString &color, const QString &fillColor, int lineWidth, int pattern)
    {
        QPixmap pixmap(width, height);
        pixmap.fill(Qt::transparent);
    
        QColor bgColor(color);
    
        QPainter painter(&pixmap);
        painter.setBrush(bgColor);
        painter.setPen(Qt::NoPen);
    
        // Draw the rectangle
        QRect pixmapRect(1, 1, width, height);
        painter.drawRect(pixmapRect);
    
        QBrush patternBrush;
        patternBrush.setColor(fillColor); 
        patternBrush.setTexture(get_pixmap(pattern));
        painter.setBrush(patternBrush);
    
        // Draw the rectangle
        painter.drawRect(pixmapRect);
    
        if (lineWidth)
        {
            QPen patternPen;
            patternPen.setCapStyle(Qt::SquareCap);
            patternPen.setJoinStyle(Qt::MiterJoin);
    
            // Draw the outline
            patternPen.setColor(lineColor);
    
            painter.setBrush(Qt::NoBrush);
            patternPen.setWidth(lineWidth);
    
            painter.setPen(patternPen);
            painter.drawRect(pixmapRect);
        }
    
        QIcon icon(pixmap);
        setIcon(icon);
    }
    
    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #4

    @user4592357
    Hi
    That sets only min size, not sure how that prevents from using all of the space?

    Ah so you want entire button to be the icon/pattern and no text and other button-ish features?
    I wonder why not simply draw it directly then ? (in paint event)
    you seems to have a custom, class already ? (PushButton)
    You could use dynamic properties to specify
    color, fillColor, lineWidth, pattern
    (so you can set in Designer if you need)
    and use promotion to use your custom button directly in Designer.

    Maybe i misunderstand the actual issue ?
    Could you show image of what you have ?

    1 Reply Last reply
    0
    • U Offline
      U Offline
      user4592357
      wrote on last edited by
      #5

      @mrjj

      yes i want the whole button to be the pattern, no matter what size the button is.
      this is what i have now: https://ibb.co/FWmbDZX

      mrjjM 1 Reply Last reply
      0
      • U user4592357

        @mrjj

        yes i want the whole button to be the pattern, no matter what size the button is.
        this is what i have now: https://ibb.co/FWmbDZX

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by mrjj
        #6

        @user4592357
        ah, im an idiot :)
        You said tool button.
        They come with fixed SizePoliy
        alt text
        Just change to Preferred and they take all space.

        1 Reply Last reply
        1
        • U Offline
          U Offline
          user4592357
          wrote on last edited by
          #7

          yes, that did. but now the "icons" aren't drawn on the buttons, but rather behind them (i could hardly see them, i saw a part of the icon behind the button).

          mrjjM 1 Reply Last reply
          0
          • U user4592357

            yes, that did. but now the "icons" aren't drawn on the buttons, but rather behind them (i could hardly see them, i saw a part of the icon behind the button).

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #8

            @user4592357
            Can you show that effect ?
            It wont scale the icon, but keep the size to IconSize.
            Why dont just paint it directly ? ( inherit ToolButton and implement paintEvent )

            1 Reply Last reply
            0
            • mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by mrjj
              #9

              Hi
              Like
              alt text

              with a small custom class.
              Test project
              https://www.dropbox.com/s/62flul5h8aa5shj/PatternButton.zip?dl=0

              How do you determine the pattern it should use ?
              I just used variables inside, but if you generate the buttons you could just give
              as parameters.

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              2
              • U Offline
                U Offline
                user4592357
                wrote on last edited by user4592357
                #10

                oh, the problem was that i was calling QToolButton::paintEvent(event); in the end.
                without it the patterns are being drawn.
                but if i don't call it, well, my button isn't a button and cannot be pressed, etc.

                mrjjM 1 Reply Last reply
                0
                • U user4592357

                  oh, the problem was that i was calling QToolButton::paintEvent(event); in the end.
                  without it the patterns are being drawn.
                  but if i don't call it, well, my button isn't a button and cannot be pressed, etc.

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by mrjj
                  #11

                  @user4592357
                  If you dont call QToolButton::paintEvent(event), the button
                  can still be pressed but it wont draw the effect.
                  But will send signal though.

                  You can just do it revers
                  call QToolButton::paintEvent(event) in top
                  then draw pattern with slightly smaller rect on top of what already drawn.
                  (i assume you need no texts)

                  1 Reply Last reply
                  1
                  • U Offline
                    U Offline
                    user4592357
                    wrote on last edited by
                    #12

                    @mrjj
                    i managed to do that but i want to remove all spaces between buttons.
                    i've set setContentsMargins(0, 0, 0, 0) and setSpacing(0) for the layout.
                    this is what i have now: https://ibb.co/qYCm8vR
                    can't i remove those spaces?

                    mrjjM 1 Reply Last reply
                    0
                    • U user4592357

                      @mrjj
                      i managed to do that but i want to remove all spaces between buttons.
                      i've set setContentsMargins(0, 0, 0, 0) and setSpacing(0) for the layout.
                      this is what i have now: https://ibb.co/qYCm8vR
                      can't i remove those spaces?

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #13

                      @user4592357
                      Hi
                      The tool buttons seems to reserve some pixels so there will be a small space.
                      alt text

                      The lower ones are Frames and both layouts have same settings so its fair to say
                      its the closest you get with ToolButtons as seen in top.

                      1 Reply Last reply
                      0
                      • U Offline
                        U Offline
                        user4592357
                        wrote on last edited by
                        #14

                        @mrjj
                        hi,
                        when i add the buttons to a layout, they take up more space (just because it's available).
                        how can i make the buttons be in their minimum size in that layout?

                        p.s. this is what i have set for the button:

                        setMinimumSize(...);
                        setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
                        
                        mrjjM 1 Reply Last reply
                        0
                        • U user4592357

                          @mrjj
                          hi,
                          when i add the buttons to a layout, they take up more space (just because it's available).
                          how can i make the buttons be in their minimum size in that layout?

                          p.s. this is what i have set for the button:

                          setMinimumSize(...);
                          setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
                          
                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #15

                          @user4592357
                          But would would be the minimum ?
                          You can set setMaximumSize of them if you want to limit it to
                          certain size. like 64x64. else layout makes them use the extra space.

                          U 1 Reply Last reply
                          0
                          • mrjjM mrjj

                            @user4592357
                            But would would be the minimum ?
                            You can set setMaximumSize of them if you want to limit it to
                            certain size. like 64x64. else layout makes them use the extra space.

                            U Offline
                            U Offline
                            user4592357
                            wrote on last edited by user4592357
                            #16

                            @mrjj
                            no i don't want max size...
                            i thought i could add a spacer at column 0 and last column, and set stretch factor to those columns

                            mrjjM 1 Reply Last reply
                            0
                            • U user4592357

                              @mrjj
                              no i don't want max size...
                              i thought i could add a spacer at column 0 and last column, and set stretch factor to those columns

                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by mrjj
                              #17

                              @user4592357
                              im not sure i understand.
                              You do not want a max size for widgets but at same time they are not allowed to use
                              all the space ?
                              well yes spacers should compress to minimum

                              1 Reply Last reply
                              0
                              • U Offline
                                U Offline
                                user4592357
                                wrote on last edited by
                                #18

                                yes maybe that's weird but that's what i need.
                                when i added the spacer at col 0, and then the rest of the widgets, only the first widget got added.

                                mrjjM 1 Reply Last reply
                                0
                                • U user4592357

                                  yes maybe that's weird but that's what i need.
                                  when i added the spacer at col 0, and then the rest of the widgets, only the first widget got added.

                                  mrjjM Offline
                                  mrjjM Offline
                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #19

                                  @user4592357
                                  Im not sure what you mean . Adding cant fail due to spacer.
                                  did you set Minimum on the widgets as else they get compressed totally.

                                  alt text

                                  with no Minimum set
                                  alt text

                                  1 Reply Last reply
                                  0
                                  • U Offline
                                    U Offline
                                    user4592357
                                    wrote on last edited by user4592357
                                    #20

                                    i added spacers at both ends of hbox layout, but now the whole container widget gets larger instead of the buttons getting smaller (since there is a spacer around them)...

                                    mrjjM 1 Reply Last reply
                                    0
                                    • U user4592357

                                      i added spacers at both ends of hbox layout, but now the whole container widget gets larger instead of the buttons getting smaller (since there is a spacer around them)...

                                      mrjjM Offline
                                      mrjjM Offline
                                      mrjj
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #21

                                      @user4592357
                                      Hi
                                      Its impossible to guess at with no code or pictures.
                                      If i do the same with Horz layout i get this
                                      alt text

                                      1 Reply Last reply
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