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eeshow/gui.c (zoom_to_extents): abstract obtaining the sheet size

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This commit is contained in:
Werner Almesberger 2016-08-09 10:58:29 -03:00
parent be43cce751
commit eff0ad4860
1 changed files with 15 additions and 6 deletions
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21
eeshow/gui.c
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@ -319,18 +319,27 @@ static void zoom_out(struct gui_ctx *ctx, int x, int y)
}
static void zoom_to_extents(struct gui_ctx *ctx)
static void curr_sheet_size(struct gui_ctx *ctx, int *w, int *h)
{
const struct gui_sheet *sheet = ctx->curr_sheet;
GtkAllocation alloc;
ctx->x = sheet->w / 2;
ctx->y = sheet->h / 2;
*w = sheet->w;
*h = sheet->h;
}
static void zoom_to_extents(struct gui_ctx *ctx)
{
GtkAllocation alloc;
int w, h;
curr_sheet_size(ctx, &w, &h);
ctx->x = w / 2;
ctx->y = h / 2;
gtk_widget_get_allocation(ctx->da, &alloc);
ctx->zoom = 0;
while (sheet->w >> ctx->zoom > alloc.width ||
sheet->h >> ctx->zoom > alloc.height)
while (w >> ctx->zoom > alloc.width || h >> ctx->zoom > alloc.height)
ctx->zoom++;
redraw(ctx);