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Changes In Branch bug-8bee4b2009-alt Excluding Merge-Ins

This is equivalent to a diff from 79c6edba to 9287395c

2023-01-06
21:35
Fix [8bee4b2009]: progress bar no longer displays properly with certain styles. check-in: c0e5aa48 user: fvogel tags: trunk, main
2022-12-30
21:35
Refine progressbar-3.3 Closed-Leaf check-in: 9287395c user: fvogel tags: bug-8bee4b2009-alt
21:15
Simplify code by making better use of common parts between Text and cText elements. check-in: 2ff58248 user: fvogel tags: bug-8bee4b2009-alt
20:53
Another approach to fix [8bee4b2009]: Instead of the Text element used in other widgets, use a collapsing Text element. Test progressbar-3.3 passes. check-in: 9034028c user: fvogel tags: bug-8bee4b2009-alt
16:44
A workaround for [8bee4b2009]: the default font used for progressbars is of very small size. Test progressbar-3.3 now passes. Closed-Leaf check-in: fba99d26 user: fvogel tags: bug-8bee4b2009
16:41
Add (currently failing) test progressbar-3.3 demonstrating bug [8bee4b2009]. check-in: 79c6edba user: fvogel tags: bug-8bee4b2009
2022-12-29
22:56
Use some more point-expressions in stead of tk::ScaleNum check-in: bf9a2216 user: jan.nijtmans tags: trunk, main

Changes to generic/ttk/ttkLabel.c.
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static const Ttk_ElementSpec TextElementSpec = {
    TK_STYLE_VERSION_2,
    sizeof(TextElement),
    TextElementOptions,
    TextElementSize,
    TextElementDraw
};

/*----------------------------------------------------------------------
 * +++ cText (collapsing text) element.
 *
 * This element is the same as the Text element, except its dimensions
 * are 0,0 when the text to display is "".
 */

static int cTextSetup(TextElement *text, Tk_Window tkwin)
{
    if (*Tcl_GetString(text->textObj) == '\0') {
        return 0;
    } else {
        return TextSetup(text, tkwin);
    }
}

static void cTextElementSize(
    void *dummy, void *elementRecord, Tk_Window tkwin,
    int *widthPtr, int *heightPtr, Ttk_Padding *paddingPtr)
{
    TextElement *text = (TextElement *)elementRecord;
    (void)dummy;
    (void)paddingPtr;

    if (!cTextSetup(text, tkwin))
	return;

    *heightPtr = text->height;
    *widthPtr = TextReqWidth(text);

    TextCleanup(text);

    return;
}

static const Ttk_ElementSpec cTextElementSpec = {
    TK_STYLE_VERSION_2,
    sizeof(TextElement),
    TextElementOptions,
    cTextElementSize,
    TextElementDraw
};

/*----------------------------------------------------------------------
 * +++ Image element.
 * Draws an image.
 */

typedef struct {
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MODULE_SCOPE
void TtkLabel_Init(Tcl_Interp *interp)
{
    Ttk_Theme theme =  Ttk_GetDefaultTheme(interp);

    Ttk_RegisterElement(interp, theme, "text", &TextElementSpec, NULL);
    Ttk_RegisterElement(interp, theme, "ctext", &cTextElementSpec, NULL);
    Ttk_RegisterElement(interp, theme, "image", &ImageElementSpec, NULL);
    Ttk_RegisterElement(interp, theme, "label", &LabelElementSpec, NULL);
}
Changes to generic/ttk/ttkProgress.c.
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    TTK_GROUP("Vertical.Progressbar.trough", TTK_FILL_BOTH,
	TTK_NODE("Vertical.Progressbar.pbar", TTK_PACK_BOTTOM|TTK_FILL_X))
TTK_END_LAYOUT

TTK_BEGIN_LAYOUT(HorizontalProgressbarLayout)
    TTK_GROUP("Horizontal.Progressbar.trough", TTK_FILL_BOTH,
	TTK_NODE("Horizontal.Progressbar.pbar", TTK_PACK_LEFT|TTK_FILL_Y)
	TTK_NODE("Horizontal.Progressbar.text", TTK_PACK_LEFT))
	TTK_NODE("Horizontal.Progressbar.ctext", TTK_PACK_LEFT))
TTK_END_LAYOUT

/*
 * Initialization:
 */

MODULE_SCOPE
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Changes to library/ttk/vistaTheme.tcl.
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        # Progressbar
        ttk::style element create Horizontal.Progressbar.pbar vsapi \
            PROGRESS 3 {{} 1} -padding 8
        ttk::style layout Horizontal.TProgressbar {
            Horizontal.Progressbar.trough -sticky nswe -children {
                Horizontal.Progressbar.pbar -side left -sticky ns
                Horizontal.Progressbar.text -sticky nesw
                Horizontal.Progressbar.ctext -sticky nesw
            }
        }
        ttk::style element create Vertical.Progressbar.pbar vsapi \
            PROGRESS 3 {{} 1} -padding 8
        ttk::style layout Vertical.TProgressbar {
            Vertical.Progressbar.trough -sticky nswe -children {
                Vertical.Progressbar.pbar -side bottom -sticky we
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Changes to tests/ttk/progressbar.test.
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    set res
} -cleanup {
    unset res thefont
    destroy .p
} -result {{-anchor e} {-foreground green} {-justify center} {-text {Cannot be seen}} {-wraplength 250}}

test progressbar-3.3 {horizontal progressbar height with no -text (TIP #442) specified - Bug [8bee4b2009]} -setup {
    set res {}
    set oldTheme [ttk::style theme use]
} -body {
    ttk::style theme use default
    set imga [image create photo -file [file join [file dirname [info script]] pb_image.svg] -format {svg -scale 0.8}]
    ::ttk::style element create Horizontal.Progressbar.pbar image $imga
    # -text "": progressbar height does not depend on font height
    pack [ttk::progressbar .p -orient horizontal]
    pack [ttk::progressbar .p -orient horizontal -font {TkDefaultFont 24}]
    .p step 25
    update
    expr {[winfo reqheight .p] == [image height $imga] + 2}
    set res [expr {[winfo reqheight .p] == [image height $imga] + 2}]
    # -text "something": progressbar height adjusts to contain the font height
    .p configure -text Hello -font {TkDefaultFont 24}
    update
    lappend res [expr {[winfo reqheight .p] == [font metrics [.p cget -font] -linespace] + 2}]
} -cleanup {
    destroy .p
    ttk::style theme use $oldTheme
    # there's no way I know to undo  '::ttk::style element create...'
} -result {1}
} -result {1 1}

test progressbar-4.1 "style command" -body {
    ttk::progressbar .wh  ; # default is  -orient horizontal
    ttk::progressbar .wv -orient vertical
    list [.wh cget -style] [.wh style] [winfo class .wh]\
         [.wv cget -style] [.wv style] [winfo class .wv]
} -cleanup {
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