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(svn r20558) -Codechange: use one generic function to create a list of company buttons

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yexo
2010-08-19 12:56:31 +00:00
parent 9031e5668c
commit a4fbfa268b
4 changed files with 69 additions and 89 deletions
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55
src/widget.cpp
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@@ -2404,3 +2404,58 @@ NWidgetContainer *MakeWindowNWidgetTree(const NWidgetPart *parts, int count, int
*biggest_index = max(*biggest_index, biggest2);
return root;
}
/**
* Make a number of rows with button-like graphics, for enabling/disabling each company.
* @param biggest_index Storage for collecting the biggest index used in the returned tree.
* @param widget_first The first widget index to use.
* @param widget_last The last widget index to use.
* @param max_length Maximal number of company buttons in one row.
* @param button_tooltip The tooltip-string of every button.
* @return Panel with rows of company buttons.
* @post \c *biggest_index contains the largest used index in the tree.
*/
NWidgetBase *MakeCompanyButtonRows(int *biggest_index, int widget_first, int widget_last, int max_length, StringID button_tooltip)
{
NWidgetVertical *vert = NULL; // Storage for all rows.
NWidgetHorizontal *hor = NULL; // Storage for buttons in one row.
int hor_length = 0;
Dimension sprite_size = GetSpriteSize(SPR_COMPANY_ICON);
sprite_size.width += WD_MATRIX_LEFT + WD_MATRIX_RIGHT;
sprite_size.height += WD_MATRIX_TOP + WD_MATRIX_BOTTOM + 1; // 1 for the 'offset' of being pressed
for (int widnum = widget_first; widnum <= widget_last; widnum++) {
/* Ensure there is room in 'hor' for another button. */
if (hor_length == max_length) {
if (vert == NULL) vert = new NWidgetVertical();
vert->Add(hor);
hor = NULL;
hor_length = 0;
}
if (hor == NULL) {
hor = new NWidgetHorizontal();
hor_length = 0;
}
NWidgetBackground *panel = new NWidgetBackground(WWT_PANEL, COLOUR_GREY, widnum);
panel->SetMinimalSize(sprite_size.width, sprite_size.height);
panel->SetFill(1, 0);
panel->SetResize(1, 0);
panel->SetDataTip(0x0, button_tooltip);
hor->Add(panel);
hor_length++;
}
*biggest_index = widget_last;
if (vert == NULL) return hor; // All buttons fit in a single row.
if (hor_length > 0 && hor_length < max_length) {
/* Last row is partial, add a spacer at the end to force all buttons to the left. */
NWidgetSpacer *spc = new NWidgetSpacer(sprite_size.width, sprite_size.height);
spc->SetFill(1, 0);
spc->SetResize(1, 0);
hor->Add(spc);
}
if (hor != NULL) vert->Add(hor);
return vert;
}