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dtappbuilder: set the minimum limit for rows and columns to avoid rollover.

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Liang Chang
2021-02-22 08:09:24 +08:00
parent f70877daa2
commit 2851d666eb
1 changed files with 3 additions and 3 deletions
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6
cde/programs/dtappbuilder/src/ab/ui_util.c
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@@ -720,7 +720,7 @@ ui_size_to_row_col(
XFontStruct *font; XFontStruct *font;
unsigned long charwidth; unsigned long charwidth;
unsigned long lineheight; unsigned long lineheight;
Dimension pane_width, pane_height; int pane_width, pane_height;
if (XtIsSubclass(text, dtTermWidgetClass)) if (XtIsSubclass(text, dtTermWidgetClass))
XtVaGetValues(text, XtVaGetValues(text,
@@ -776,8 +776,8 @@ ui_size_to_row_col(
pane_width = width - (vsb_width + spacing) - (2*p_margin_w); pane_width = width - (vsb_width + spacing) - (2*p_margin_w);
pane_height = height - (hsb_height + spacing) - (2*p_margin_h); pane_height = height - (hsb_height + spacing) - (2*p_margin_h);
*row_ptr = (int)((pane_height - (2*margin_h))/lineheight); *row_ptr = (int)(max(0, pane_height - 2 * margin_h) / lineheight);
*col_ptr = (int)((pane_width - (2*margin_w))/charwidth); *col_ptr = (int)(max(0, pane_width - 2 * margin_w) / charwidth);
/* For some reason, above calculations result in rows being 1 too /* For some reason, above calculations result in rows being 1 too
* large for a scrolled list widget; put in workaround until * large for a scrolled list widget; put in workaround until