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Codechange: Make widget index const to prevent changes. (#11658)

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This guards against future widget index manipulation.
wip-string
Peter Nelson 6 months ago committed by GitHub
parent fd782ada05
commit 8ff0bef862
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2 changed files with 17 additions and 56 deletions
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56
src/widget.cpp
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@ -1208,15 +1208,15 @@ void NWidgetResizeBase::AssignSizePosition(SizingType sizing, int x, int y, uint
* Initialization of a 'real' widget.
* @param tp Type of the widget.
* @param colour Colour of the widget.
* @param index Index of the widget.
* @param fill_x Default horizontal filling.
* @param fill_y Default vertical filling.
* @param widget_data Data component of the widget. @see Widget::data
* @param tool_tip Tool tip of the widget. @see Widget::tooltips
*/
NWidgetCore::NWidgetCore(WidgetType tp, Colours colour, uint fill_x, uint fill_y, uint32_t widget_data, StringID tool_tip) : NWidgetResizeBase(tp, fill_x, fill_y)
NWidgetCore::NWidgetCore(WidgetType tp, Colours colour, WidgetID index, uint fill_x, uint fill_y, uint32_t widget_data, StringID tool_tip) : NWidgetResizeBase(tp, fill_x, fill_y), index(index)
{
this->colour = colour;
this->index = -1;
this->widget_data = widget_data;
this->tool_tip = tool_tip;
this->scrollbar_index = -1;
@ -1225,16 +1225,6 @@ NWidgetCore::NWidgetCore(WidgetType tp, Colours colour, uint fill_x, uint fill_y
this->align = SA_CENTER;
}
/**
* Set index of the nested widget in the widget array.
* @param index Index to use.
*/
void NWidgetCore::SetIndex(WidgetID index)
{
assert(index >= 0);
this->index = index;
}
/**
* Set data and tool tip of the nested widget.
* @param widget_data Data to use.
@ -1374,14 +1364,8 @@ NWidgetCore *NWidgetContainer::GetWidgetFromPos(int x, int y)
/**
* Widgets stacked on top of each other.
*/
NWidgetStacked::NWidgetStacked() : NWidgetContainer(NWID_SELECTION)
{
this->index = -1;
}
void NWidgetStacked::SetIndex(WidgetID index)
NWidgetStacked::NWidgetStacked(WidgetID index) : NWidgetContainer(NWID_SELECTION), index(index)
{
this->index = index;
}
void NWidgetStacked::AdjustPaddingForZoom()
@ -1950,16 +1934,7 @@ NWidgetCore *NWidgetSpacer::GetWidgetFromPos(int, int)
return nullptr;
}
NWidgetMatrix::NWidgetMatrix() : NWidgetPIPContainer(NWID_MATRIX, NC_EQUALSIZE), index(-1), clicked(-1), count(-1)
{
}
void NWidgetMatrix::SetIndex(WidgetID index)
{
this->index = index;
}
void NWidgetMatrix::SetColour(Colours colour)
NWidgetMatrix::NWidgetMatrix(Colours colour, WidgetID index) : NWidgetPIPContainer(NWID_MATRIX, NC_EQUALSIZE), index(index), clicked(-1), count(-1)
{
this->colour = colour;
}
@ -2191,10 +2166,9 @@ void NWidgetMatrix::GetScrollOffsets(int &start_x, int &start_y, int &base_offs_
* vertical container will be inserted while adding the first
* child widget.
*/
NWidgetBackground::NWidgetBackground(WidgetType tp, Colours colour, WidgetID index, NWidgetPIPContainer *child) : NWidgetCore(tp, colour, 1, 1, 0x0, STR_NULL)
NWidgetBackground::NWidgetBackground(WidgetType tp, Colours colour, WidgetID index, NWidgetPIPContainer *child) : NWidgetCore(tp, colour, index, 1, 1, 0x0, STR_NULL)
{
assert(tp == WWT_PANEL || tp == WWT_INSET || tp == WWT_FRAME);
if (index >= 0) this->SetIndex(index);
this->child = child;
this->SetAlignment(SA_TOP | SA_LEFT);
}
@ -2399,9 +2373,8 @@ NWidgetBase *NWidgetBackground::GetWidgetOfType(WidgetType tp)
return nwid;
}
NWidgetViewport::NWidgetViewport(WidgetID index) : NWidgetCore(NWID_VIEWPORT, INVALID_COLOUR, 1, 1, 0x0, STR_NULL)
NWidgetViewport::NWidgetViewport(WidgetID index) : NWidgetCore(NWID_VIEWPORT, INVALID_COLOUR, index, 1, 1, 0x0, STR_NULL)
{
this->SetIndex(index);
}
void NWidgetViewport::SetupSmallestSize(Window *)
@ -2559,10 +2532,9 @@ void Scrollbar::SetCapacityFromWidget(Window *w, WidgetID widget, int padding)
* @param colour Colour of the scrollbar.
* @param index Index of the widget.
*/
NWidgetScrollbar::NWidgetScrollbar(WidgetType tp, Colours colour, WidgetID index) : NWidgetCore(tp, colour, 1, 1, 0x0, STR_NULL), Scrollbar(tp != NWID_HSCROLLBAR)
NWidgetScrollbar::NWidgetScrollbar(WidgetType tp, Colours colour, WidgetID index) : NWidgetCore(tp, colour, index, 1, 1, 0x0, STR_NULL), Scrollbar(tp != NWID_HSCROLLBAR)
{
assert(tp == NWID_HSCROLLBAR || tp == NWID_VSCROLLBAR);
this->SetIndex(index);
switch (this->type) {
case NWID_HSCROLLBAR:
@ -2685,10 +2657,9 @@ Dimension NWidgetLeaf::dropdown_dimension = {0, 0};
* @param data Data of the widget.
* @param tip Tooltip of the widget.
*/
NWidgetLeaf::NWidgetLeaf(WidgetType tp, Colours colour, WidgetID index, uint32_t data, StringID tip) : NWidgetCore(tp, colour, 1, 1, data, tip)
NWidgetLeaf::NWidgetLeaf(WidgetType tp, Colours colour, WidgetID index, uint32_t data, StringID tip) : NWidgetCore(tp, colour, index, 1, 1, data, tip)
{
assert(index >= 0 || tp == WWT_LABEL || tp == WWT_TEXT || tp == WWT_CAPTION || tp == WWT_RESIZEBOX || tp == WWT_SHADEBOX || tp == WWT_DEFSIZEBOX || tp == WWT_DEBUGBOX || tp == WWT_STICKYBOX || tp == WWT_CLOSEBOX);
if (index >= 0) this->SetIndex(index);
this->min_x = 0;
this->min_y = 0;
this->SetResize(0, 0);
@ -3153,11 +3124,8 @@ static const NWidgetPart *MakeNWidget(const NWidgetPart *nwid_begin, const NWidg
case NWID_MATRIX: {
if (*dest != nullptr) return nwid_begin;
NWidgetMatrix *nwm = new NWidgetMatrix();
*dest = nwm;
*dest = new NWidgetMatrix(nwid_begin->u.widget.colour, nwid_begin->u.widget.index);
*fill_dest = true;
nwm->SetIndex(nwid_begin->u.widget.index);
nwm->SetColour(nwid_begin->u.widget.colour);
break;
}
@ -3271,10 +3239,8 @@ static const NWidgetPart *MakeNWidget(const NWidgetPart *nwid_begin, const NWidg
case NWID_SELECTION: {
if (*dest != nullptr) return nwid_begin;
NWidgetStacked *nws = new NWidgetStacked();
*dest = nws;
*dest = new NWidgetStacked(nwid_begin->u.widget.index);
*fill_dest = true;
nws->SetIndex(nwid_begin->u.widget.index);
break;
}
@ -3394,7 +3360,7 @@ NWidgetContainer *MakeWindowNWidgetTree(const NWidgetPart *nwid_begin, const NWi
NWidgetHorizontal *hor_cont = dynamic_cast<NWidgetHorizontal *>(nwid);
NWidgetContainer *body;
if (hor_cont != nullptr && hor_cont->GetWidgetOfType(WWT_CAPTION) != nullptr && hor_cont->GetWidgetOfType(WWT_SHADEBOX) != nullptr) {
*shade_select = new NWidgetStacked;
*shade_select = new NWidgetStacked(-1);
root->Add(*shade_select);
body = new NWidgetVertical;
(*shade_select)->Add(body);

17
src/widget_type.h
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@ -327,9 +327,8 @@ DECLARE_ENUM_AS_BIT_SET(NWidgetDisplay)
*/
class NWidgetCore : public NWidgetResizeBase {
public:
NWidgetCore(WidgetType tp, Colours colour, uint fill_x, uint fill_y, uint32_t widget_data, StringID tool_tip);
NWidgetCore(WidgetType tp, Colours colour, WidgetID index, uint fill_x, uint fill_y, uint32_t widget_data, StringID tool_tip);
void SetIndex(WidgetID index);
void SetDataTip(uint32_t widget_data, StringID tool_tip);
void SetToolTip(StringID tool_tip);
void SetTextStyle(TextColour colour, FontSize size);
@ -348,7 +347,7 @@ public:
NWidgetDisplay disp_flags; ///< Flags that affect display and interaction with the widget.
Colours colour; ///< Colour of this widget.
WidgetID index; ///< Index of the nested widget (\c -1 means 'not used').
const WidgetID index; ///< Index of the nested widget (\c -1 means 'not used').
uint32_t widget_data; ///< Data of the widget. @see Widget::data
StringID tool_tip; ///< Tooltip of the widget. @see Widget::tootips
WidgetID scrollbar_index; ///< Index of an attached scrollbar.
@ -458,9 +457,7 @@ enum StackedZeroSizePlanes {
*/
class NWidgetStacked : public NWidgetContainer {
public:
NWidgetStacked();
void SetIndex(WidgetID index);
NWidgetStacked(WidgetID index);
void AdjustPaddingForZoom() override;
void SetupSmallestSize(Window *w) override;
@ -473,7 +470,7 @@ public:
bool SetDisplayedPlane(int plane);
int shown_plane; ///< Plane being displayed (for #NWID_SELECTION only).
WidgetID index; ///< If non-negative, index in the #Window::widget_lookup.
const WidgetID index; ///< If non-negative, index in the #Window::widget_lookup.
};
/** Nested widget container flags, */
@ -557,10 +554,8 @@ public:
*/
class NWidgetMatrix : public NWidgetPIPContainer {
public:
NWidgetMatrix();
NWidgetMatrix(Colours colour, WidgetID index);
void SetIndex(WidgetID index);
void SetColour(Colours colour);
void SetClicked(int clicked);
void SetCount(int count);
void SetScrollbar(Scrollbar *sb);
@ -573,7 +568,7 @@ public:
NWidgetCore *GetWidgetFromPos(int x, int y) override;
void Draw(const Window *w) override;
protected:
WidgetID index; ///< If non-negative, index in the #Window::widget_lookup.
const WidgetID index; ///< If non-negative, index in the #Window::widget_lookup.
Colours colour; ///< Colour of this widget.
int clicked; ///< The currently clicked element.
int count; ///< Amount of valid elements.

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