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Codechange: Add internal widget alignment property, along with widget part.

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pull/251/head
Peter Nelson 3 years ago committed by PeterN
parent 2a0365b3d9
commit 636e37d183
6 changed files with 142 additions and 55 deletions
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18
src/gfx_func.h
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@ -91,24 +91,6 @@ Dimension GetSpriteSize(SpriteID sprid, Point *offset = nullptr, ZoomLevel zoom
void DrawSpriteViewport(SpriteID img, PaletteID pal, int x, int y, const SubSprite *sub = nullptr);
void DrawSprite(SpriteID img, PaletteID pal, int x, int y, const SubSprite *sub = nullptr, ZoomLevel zoom = ZOOM_LVL_GUI);
/** How to align the to-be drawn text. */
enum StringAlignment {
SA_LEFT = 0 << 0, ///< Left align the text.
SA_HOR_CENTER = 1 << 0, ///< Horizontally center the text.
SA_RIGHT = 2 << 0, ///< Right align the text (must be a single bit).
SA_HOR_MASK = 3 << 0, ///< Mask for horizontal alignment.
SA_TOP = 0 << 2, ///< Top align the text.
SA_VERT_CENTER = 1 << 2, ///< Vertically center the text.
SA_BOTTOM = 2 << 2, ///< Bottom align the text.
SA_VERT_MASK = 3 << 2, ///< Mask for vertical alignment.
SA_CENTER = SA_HOR_CENTER | SA_VERT_CENTER, ///< Center both horizontally and vertically.
SA_FORCE = 1 << 4, ///< Force the alignment, i.e. don't swap for RTL languages.
};
DECLARE_ENUM_AS_BIT_SET(StringAlignment)
int DrawString(int left, int right, int top, const char *str, TextColour colour = TC_FROMSTRING, StringAlignment align = SA_LEFT, bool underline = false, FontSize fontsize = FS_NORMAL);
int DrawString(int left, int right, int top, StringID str, TextColour colour = TC_FROMSTRING, StringAlignment align = SA_LEFT, bool underline = false, FontSize fontsize = FS_NORMAL);
int DrawStringMultiLine(int left, int right, int top, int bottom, const char *str, TextColour colour = TC_FROMSTRING, StringAlignment align = (SA_TOP | SA_LEFT), bool underline = false, FontSize fontsize = FS_NORMAL);

18
src/gfx_type.h
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@ -323,4 +323,22 @@ enum Support8bpp {
S8BPP_HARDWARE, ///< Full 8bpp support by OS and hardware.
};
/** How to align the to-be drawn text. */
enum StringAlignment {
SA_LEFT = 0 << 0, ///< Left align the text.
SA_HOR_CENTER = 1 << 0, ///< Horizontally center the text.
SA_RIGHT = 2 << 0, ///< Right align the text (must be a single bit).
SA_HOR_MASK = 3 << 0, ///< Mask for horizontal alignment.
SA_TOP = 0 << 2, ///< Top align the text.
SA_VERT_CENTER = 1 << 2, ///< Vertically center the text.
SA_BOTTOM = 2 << 2, ///< Bottom align the text.
SA_VERT_MASK = 3 << 2, ///< Mask for vertical alignment.
SA_CENTER = SA_HOR_CENTER | SA_VERT_CENTER, ///< Center both horizontally and vertically.
SA_FORCE = 1 << 4, ///< Force the alignment, i.e. don't swap for RTL languages.
};
DECLARE_ENUM_AS_BIT_SET(StringAlignment)
#endif /* GFX_TYPE_H */

2
src/news_gui.cpp
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@ -422,7 +422,7 @@ struct NewsWindow : Window {
{
switch (widget) {
case WID_N_CAPTION:
DrawCaption(r, COLOUR_LIGHT_BLUE, this->owner, STR_NEWS_MESSAGE_CAPTION);
DrawCaption(r, COLOUR_LIGHT_BLUE, this->owner, STR_NEWS_MESSAGE_CAPTION, SA_HOR_CENTER);
break;
case WID_N_PANEL:

130
src/widget.cpp
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@ -24,6 +24,33 @@
#include "safeguards.h"
/**
* Calculate x and y coordinates for an aligned object within a window.
* @param r Rectangle of the widget to be drawn in.
* @param d Dimension of the object to be drawn.
* @param align Alignment of the object.
* @return A point containing the position at which to draw.
*/
static inline Point GetAlignedPosition(const Rect &r, const Dimension &d, StringAlignment align)
{
Point p;
/* In case we have a RTL language we swap the alignment. */
if (!(align & SA_FORCE) && _current_text_dir == TD_RTL && (align & SA_HOR_MASK) != SA_HOR_CENTER) align ^= SA_RIGHT;
switch (align & SA_HOR_MASK) {
case SA_LEFT: p.x = r.left; break;
case SA_HOR_CENTER: p.x = CenterBounds(r.left, r.right, d.width); break;
case SA_RIGHT: p.x = r.right - d.width; break;
default: NOT_REACHED();
}
switch (align & SA_VERT_MASK) {
case SA_TOP: p.y = r.top; break;
case SA_VERT_CENTER: p.y = CenterBounds(r.top, r.bottom, d.height); break;
case SA_BOTTOM: p.y = r.bottom - d.height; break;
default: NOT_REACHED();
}
return p;
}
/**
* Compute the vertical position of the draggable part of scrollbar
* @param sb Scrollbar list data
@ -212,15 +239,17 @@ void DrawFrameRect(int left, int top, int right, int bottom, Colours colour, Fra
* @param colour Colour of the button.
* @param clicked Button is lowered.
* @param img Sprite to draw.
* @param align Alignment of the sprite.
*/
static inline void DrawImageButtons(const Rect &r, WidgetType type, Colours colour, bool clicked, SpriteID img)
static inline void DrawImageButtons(const Rect &r, WidgetType type, Colours colour, bool clicked, SpriteID img, StringAlignment align)
{
assert(img != 0);
DrawFrameRect(r.left, r.top, r.right, r.bottom, colour, (clicked) ? FR_LOWERED : FR_NONE);
if ((type & WWT_MASK) == WWT_IMGBTN_2 && clicked) img++; // Show different image when clicked for #WWT_IMGBTN_2.
Dimension d = GetSpriteSize(img);
DrawSprite(img, PAL_NONE, CenterBounds(r.left, r.right, d.width) + clicked, CenterBounds(r.top, r.bottom, d.height) + clicked);
Point p = GetAlignedPosition(r, d, align);
DrawSprite(img, PAL_NONE, p.x + clicked, p.y + clicked);
}
/**
@ -229,14 +258,15 @@ static inline void DrawImageButtons(const Rect &r, WidgetType type, Colours colo
* @param type Widget type (#WWT_TEXTBTN, #WWT_TEXTBTN_2, or #WWT_LABEL).
* @param clicked Label is rendered lowered.
* @param str Text to draw.
* @param align Alignment of the text.
*/
static inline void DrawLabel(const Rect &r, WidgetType type, bool clicked, StringID str)
static inline void DrawLabel(const Rect &r, WidgetType type, bool clicked, StringID str, StringAlignment align)
{
if (str == STR_NULL) return;
if ((type & WWT_MASK) == WWT_TEXTBTN_2 && clicked) str++;
Dimension d = GetStringBoundingBox(str);
int offset = std::max(0, ((int)(r.bottom - r.top + 1) - (int)d.height) / 2); // Offset for rendering the text vertically centered
DrawString(r.left + clicked, r.right + clicked, r.top + offset + clicked, str, TC_FROMSTRING, SA_HOR_CENTER);
Point p = GetAlignedPosition(r, d, align);
DrawString(r.left + clicked, r.right + clicked, p.y + clicked, str, TC_FROMSTRING, align);
}
/**
@ -244,12 +274,13 @@ static inline void DrawLabel(const Rect &r, WidgetType type, bool clicked, Strin
* @param r Rectangle of the background.
* @param colour Colour of the text.
* @param str Text to draw.
* @param align Alignment of the text.
*/
static inline void DrawText(const Rect &r, TextColour colour, StringID str)
static inline void DrawText(const Rect &r, TextColour colour, StringID str, StringAlignment align)
{
Dimension d = GetStringBoundingBox(str);
int offset = std::max(0, ((int)(r.bottom - r.top + 1) - (int)d.height) / 2); // Offset for rendering the text vertically centered
if (str != STR_NULL) DrawString(r.left, r.right, r.top + offset, str, colour);
Point p = GetAlignedPosition(r, d, align);
if (str != STR_NULL) DrawString(r.left, r.right, p.y, str, colour, align);
}
/**
@ -257,11 +288,12 @@ static inline void DrawText(const Rect &r, TextColour colour, StringID str)
* @param r Rectangle of the background.
* @param colour Colour of the inset.
* @param str Text to draw.
* @param align Alignment of the text.
*/
static inline void DrawInset(const Rect &r, Colours colour, StringID str)
static inline void DrawInset(const Rect &r, Colours colour, StringID str, StringAlignment align)
{
DrawFrameRect(r.left, r.top, r.right, r.bottom, colour, FR_LOWERED | FR_DARKENED);
if (str != STR_NULL) DrawString(r.left + WD_INSET_LEFT, r.right - WD_INSET_RIGHT, r.top + WD_INSET_TOP, str);
if (str != STR_NULL) DrawString(r.left + WD_INSET_LEFT, r.right - WD_INSET_RIGHT, r.top + WD_INSET_TOP, str, TC_FROMSTRING, align);
}
/**
@ -405,12 +437,13 @@ static inline void DrawHorizontalScrollbar(const Rect &r, Colours colour, bool l
* @param r Rectangle of the frame.
* @param colour Colour of the frame.
* @param str Text of the frame.
* @param align Alignment of the text in the frame.
*/
static inline void DrawFrame(const Rect &r, Colours colour, StringID str)
static inline void DrawFrame(const Rect &r, Colours colour, StringID str, StringAlignment align)
{
int x2 = r.left; // by default the left side is the left side of the widget
if (str != STR_NULL) x2 = DrawString(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, r.top, str);
if (str != STR_NULL) x2 = DrawString(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, r.top, str, TC_FROMSTRING, align);
int c1 = _colour_gradient[colour][3];
int c2 = _colour_gradient[colour][7];
@ -458,7 +491,7 @@ static inline void DrawFrame(const Rect &r, Colours colour, StringID str)
*/
static inline void DrawShadeBox(const Rect &r, Colours colour, bool clicked)
{
DrawImageButtons(r, WWT_SHADEBOX, colour, clicked, clicked ? SPR_WINDOW_SHADE: SPR_WINDOW_UNSHADE);
DrawImageButtons(r, WWT_SHADEBOX, colour, clicked, clicked ? SPR_WINDOW_SHADE: SPR_WINDOW_UNSHADE, SA_CENTER);
}
/**
@ -469,7 +502,7 @@ static inline void DrawShadeBox(const Rect &r, Colours colour, bool clicked)
*/
static inline void DrawStickyBox(const Rect &r, Colours colour, bool clicked)
{
DrawImageButtons(r, WWT_STICKYBOX, colour, clicked, clicked ? SPR_PIN_UP : SPR_PIN_DOWN);
DrawImageButtons(r, WWT_STICKYBOX, colour, clicked, clicked ? SPR_PIN_UP : SPR_PIN_DOWN, SA_CENTER);
}
/**
@ -480,7 +513,7 @@ static inline void DrawStickyBox(const Rect &r, Colours colour, bool clicked)
*/
static inline void DrawDefSizeBox(const Rect &r, Colours colour, bool clicked)
{
DrawImageButtons(r, WWT_DEFSIZEBOX, colour, clicked, SPR_WINDOW_DEFSIZE);
DrawImageButtons(r, WWT_DEFSIZEBOX, colour, clicked, SPR_WINDOW_DEFSIZE, SA_CENTER);
}
/**
@ -491,7 +524,7 @@ static inline void DrawDefSizeBox(const Rect &r, Colours colour, bool clicked)
*/
static inline void DrawDebugBox(const Rect &r, Colours colour, bool clicked)
{
DrawImageButtons(r, WWT_DEBUGBOX, colour, clicked, SPR_WINDOW_DEBUG);
DrawImageButtons(r, WWT_DEBUGBOX, colour, clicked, SPR_WINDOW_DEBUG, SA_CENTER);
}
/**
@ -534,8 +567,9 @@ static inline void DrawCloseBox(const Rect &r, Colours colour)
* @param colour Colour of the window.
* @param owner 'Owner' of the window.
* @param str Text to draw in the bar.
* @param align Alignment of the text.
*/
void DrawCaption(const Rect &r, Colours colour, Owner owner, StringID str)
void DrawCaption(const Rect &r, Colours colour, Owner owner, StringID str, StringAlignment align)
{
bool company_owned = owner < MAX_COMPANIES;
@ -548,8 +582,8 @@ void DrawCaption(const Rect &r, Colours colour, Owner owner, StringID str)
if (str != STR_NULL) {
Dimension d = GetStringBoundingBox(str);
int offset = std::max(0, ((int)(r.bottom - r.top + 1) - (int)d.height) / 2); // Offset for rendering the text vertically centered
DrawString(r.left + WD_CAPTIONTEXT_LEFT, r.right - WD_CAPTIONTEXT_RIGHT, r.top + offset, str, TC_FROMSTRING, SA_HOR_CENTER);
Point p = GetAlignedPosition(r, d, align);
DrawString(r.left + WD_CAPTIONTEXT_LEFT, r.right - WD_CAPTIONTEXT_RIGHT, p.y, str, TC_FROMSTRING, align);
}
}
@ -560,10 +594,11 @@ void DrawCaption(const Rect &r, Colours colour, Owner owner, StringID str)
* @param clicked_button The button-part is lowered.
* @param clicked_dropdown The drop-down part is lowered.
* @param str Text of the button.
* @param align Alignment of the text within the dropdown.
*
* @note Magic constants are also used in #NWidgetLeaf::ButtonHit.
*/
static inline void DrawButtonDropdown(const Rect &r, Colours colour, bool clicked_button, bool clicked_dropdown, StringID str)
static inline void DrawButtonDropdown(const Rect &r, Colours colour, bool clicked_button, bool clicked_dropdown, StringID str, StringAlignment align)
{
int text_offset = std::max(0, ((int)(r.bottom - r.top + 1) - FONT_HEIGHT_NORMAL) / 2); // Offset for rendering the text vertically centered
@ -575,12 +610,12 @@ static inline void DrawButtonDropdown(const Rect &r, Colours colour, bool clicke
DrawFrameRect(r.left, r.top, r.right - dd_width, r.bottom, colour, clicked_button ? FR_LOWERED : FR_NONE);
DrawFrameRect(r.right + 1 - dd_width, r.top, r.right, r.bottom, colour, clicked_dropdown ? FR_LOWERED : FR_NONE);
DrawSprite(SPR_ARROW_DOWN, PAL_NONE, r.right - (dd_width - 2) + clicked_dropdown, r.top + image_offset + clicked_dropdown);
if (str != STR_NULL) DrawString(r.left + WD_DROPDOWNTEXT_LEFT + clicked_button, r.right - dd_width - WD_DROPDOWNTEXT_RIGHT + clicked_button, r.top + text_offset + clicked_button, str, TC_BLACK);
if (str != STR_NULL) DrawString(r.left + WD_DROPDOWNTEXT_LEFT + clicked_button, r.right - dd_width - WD_DROPDOWNTEXT_RIGHT + clicked_button, r.top + text_offset + clicked_button, str, TC_BLACK, align);
} else {
DrawFrameRect(r.left + dd_width, r.top, r.right, r.bottom, colour, clicked_button ? FR_LOWERED : FR_NONE);
DrawFrameRect(r.left, r.top, r.left + dd_width - 1, r.bottom, colour, clicked_dropdown ? FR_LOWERED : FR_NONE);
DrawSprite(SPR_ARROW_DOWN, PAL_NONE, r.left + 1 + clicked_dropdown, r.top + image_offset + clicked_dropdown);
if (str != STR_NULL) DrawString(r.left + dd_width + WD_DROPDOWNTEXT_LEFT + clicked_button, r.right - WD_DROPDOWNTEXT_RIGHT + clicked_button, r.top + text_offset + clicked_button, str, TC_BLACK);
if (str != STR_NULL) DrawString(r.left + dd_width + WD_DROPDOWNTEXT_LEFT + clicked_button, r.right - WD_DROPDOWNTEXT_RIGHT + clicked_button, r.top + text_offset + clicked_button, str, TC_BLACK, align);
}
}
@ -590,10 +625,11 @@ static inline void DrawButtonDropdown(const Rect &r, Colours colour, bool clicke
* @param colour Background colour of the widget.
* @param clicked The widget is lowered.
* @param str Text of the button.
* @param align Alignment of the text.
*/
static inline void DrawDropdown(const Rect &r, Colours colour, bool clicked, StringID str)
static inline void DrawDropdown(const Rect &r, Colours colour, bool clicked, StringID str, StringAlignment align)
{
DrawButtonDropdown(r, colour, false, clicked, str);
DrawButtonDropdown(r, colour, false, clicked, str, align);
}
/**
@ -872,6 +908,7 @@ NWidgetCore::NWidgetCore(WidgetType tp, Colours colour, uint fill_x, uint fill_y
this->widget_data = widget_data;
this->tool_tip = tool_tip;
this->scrollbar_index = -1;
this->align = SA_CENTER;
}
/**
@ -904,6 +941,15 @@ void NWidgetCore::SetToolTip(StringID tool_tip)
this->tool_tip = tool_tip;
}
/**
* Set the text/image alignment of the nested widget.
* @param align Alignment to use.
*/
void NWidgetCore::SetAlignment(StringAlignment align)
{
this->align = align;
}
void NWidgetCore::FillNestedArray(NWidgetBase **array, uint length)
{
if (this->index >= 0 && (uint)(this->index) < length) array[this->index] = this;
@ -1725,6 +1771,7 @@ NWidgetBackground::NWidgetBackground(WidgetType tp, Colours colour, int index, N
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);
}
NWidgetBackground::~NWidgetBackground()
@ -1858,12 +1905,12 @@ void NWidgetBackground::Draw(const Window *w)
case WWT_FRAME:
if (this->index >= 0) w->SetStringParameters(this->index);
DrawFrame(r, this->colour, this->widget_data);
DrawFrame(r, this->colour, this->widget_data, this->align);
break;
case WWT_INSET:
if (this->index >= 0) w->SetStringParameters(this->index);
DrawInset(r, this->colour, this->widget_data);
DrawInset(r, this->colour, this->widget_data, this->align);
break;
default:
@ -2192,6 +2239,11 @@ NWidgetLeaf::NWidgetLeaf(WidgetType tp, Colours colour, int index, uint32 data,
case WWT_EMPTY:
break;
case WWT_TEXT:
this->SetFill(0, 0);
this->SetAlignment(SA_LEFT | SA_VERT_CENTER);
break;
case WWT_PUSHBTN:
case WWT_IMGBTN:
case WWT_PUSHIMGBTN:
@ -2200,7 +2252,6 @@ NWidgetLeaf::NWidgetLeaf(WidgetType tp, Colours colour, int index, uint32 data,
case WWT_PUSHTXTBTN:
case WWT_TEXTBTN_2:
case WWT_LABEL:
case WWT_TEXT:
case WWT_MATRIX:
case NWID_BUTTON_DROPDOWN:
case NWID_PUSHBUTTON_DROPDOWN:
@ -2259,6 +2310,7 @@ NWidgetLeaf::NWidgetLeaf(WidgetType tp, Colours colour, int index, uint32 data,
case WWT_DROPDOWN:
this->SetFill(0, 0);
this->min_y = WD_DROPDOWN_HEIGHT;
this->SetAlignment(SA_TOP | SA_LEFT);
break;
default:
@ -2493,7 +2545,7 @@ void NWidgetLeaf::Draw(const Window *w)
case WWT_IMGBTN:
case WWT_PUSHIMGBTN:
case WWT_IMGBTN_2:
DrawImageButtons(r, this->type, this->colour, clicked, this->widget_data);
DrawImageButtons(r, this->type, this->colour, clicked, this->widget_data, this->align);
break;
case WWT_TEXTBTN:
@ -2501,7 +2553,7 @@ void NWidgetLeaf::Draw(const Window *w)
case WWT_TEXTBTN_2:
if (this->index >= 0) w->SetStringParameters(this->index);
DrawFrameRect(r.left, r.top, r.right, r.bottom, this->colour, (clicked) ? FR_LOWERED : FR_NONE);
DrawLabel(r, this->type, clicked, this->widget_data);
DrawLabel(r, this->type, clicked, this->widget_data, this->align);
break;
case WWT_ARROWBTN:
@ -2514,18 +2566,18 @@ void NWidgetLeaf::Draw(const Window *w)
case AWV_RIGHT: sprite = SPR_ARROW_RIGHT; break;
default: NOT_REACHED();
}
DrawImageButtons(r, WWT_PUSHIMGBTN, this->colour, clicked, sprite);
DrawImageButtons(r, WWT_PUSHIMGBTN, this->colour, clicked, sprite, this->align);
break;
}
case WWT_LABEL:
if (this->index >= 0) w->SetStringParameters(this->index);
DrawLabel(r, this->type, clicked, this->widget_data);
DrawLabel(r, this->type, clicked, this->widget_data, this->align);
break;
case WWT_TEXT:
if (this->index >= 0) w->SetStringParameters(this->index);
DrawText(r, (TextColour)this->colour, this->widget_data);
DrawText(r, (TextColour)this->colour, this->widget_data, this->align);
break;
case WWT_MATRIX:
@ -2540,7 +2592,7 @@ void NWidgetLeaf::Draw(const Window *w)
case WWT_CAPTION:
if (this->index >= 0) w->SetStringParameters(this->index);
DrawCaption(r, this->colour, w->owner, this->widget_data);
DrawCaption(r, this->colour, w->owner, this->widget_data, this->align);
break;
case WWT_SHADEBOX:
@ -2573,13 +2625,13 @@ void NWidgetLeaf::Draw(const Window *w)
case WWT_DROPDOWN:
if (this->index >= 0) w->SetStringParameters(this->index);
DrawDropdown(r, this->colour, clicked, this->widget_data);
DrawDropdown(r, this->colour, clicked, this->widget_data, this->align);
break;
case NWID_BUTTON_DROPDOWN:
case NWID_PUSHBUTTON_DROPDOWN:
if (this->index >= 0) w->SetStringParameters(this->index);
DrawButtonDropdown(r, this->colour, clicked, (this->disp_flags & ND_DROPDOWN_ACTIVE) != 0, this->widget_data);
DrawButtonDropdown(r, this->colour, clicked, (this->disp_flags & ND_DROPDOWN_ACTIVE) != 0, this->widget_data, this->align);
break;
default:
@ -2718,6 +2770,14 @@ static int MakeNWidget(const NWidgetPart *parts, int count, NWidgetBase **dest,
break;
}
case WPT_ALIGNMENT: {
NWidgetCore *nwc = dynamic_cast<NWidgetCore *>(*dest);
if (nwc != nullptr) {
nwc->SetAlignment(parts->u.align.align);
}
break;
}
case WPT_FILL: {
NWidgetResizeBase *nwrb = dynamic_cast<NWidgetResizeBase *>(*dest);
if (nwrb != nullptr) nwrb->SetFill(parts->u.xy.x, parts->u.xy.y);

27
src/widget_type.h
Unescape Escape View File

@ -89,6 +89,7 @@ enum WidgetType {
WPT_DATATIP, ///< Widget part for specifying data and tooltip.
WPT_PADDING, ///< Widget part for specifying a padding.
WPT_PIPSPACE, ///< Widget part for specifying pre/inter/post space for containers.
WPT_ALIGNMENT, ///< Widget part for specifying text/image alignment.
WPT_ENDCONTAINER, ///< Widget part to denote end of a container.
WPT_FUNCTION, ///< Widget part for calling a user function.
WPT_SCROLLBAR, ///< Widget part for attaching a scrollbar.
@ -296,6 +297,7 @@ public:
void SetIndex(int index);
void SetDataTip(uint32 widget_data, StringID tool_tip);
void SetToolTip(StringID tool_tip);
void SetAlignment(StringAlignment align);
inline void SetLowered(bool lowered);
inline bool IsLowered() const;
@ -315,6 +317,7 @@ public:
StringID tool_tip; ///< Tooltip of the widget. @see Widget::tootips
int scrollbar_index; ///< Index of an attached scrollbar.
TextColour highlight_colour; ///< Colour of highlight.
StringAlignment align; ///< Alignment of text/image within widget.
};
/**
@ -905,6 +908,14 @@ struct NWidgetPartTextLines {
FontSize size; ///< Font size of text lines.
};
/**
* Widget part for setting text/image alignment within a widget.
* @ingroup NestedWidgetParts
*/
struct NWidgetPartAlignment {
StringAlignment align; ///< Alignment of text/image.
};
/**
* Pointer to function returning a nested widget.
* @param biggest_index Pointer to storage for collecting the biggest index used in the nested widget.
@ -926,6 +937,7 @@ struct NWidgetPart {
NWidgetPartPaddings padding; ///< Part with paddings.
NWidgetPartPIP pip; ///< Part with pre/inter/post spaces.
NWidgetPartTextLines text_lines; ///< Part with text line data.
NWidgetPartAlignment align; ///< Part with internal alignment.
NWidgetFunctionType *func_ptr; ///< Part with a function call.
NWidContainerFlags cont_flags; ///< Part with container flags.
} u;
@ -984,6 +996,21 @@ static inline NWidgetPart SetMinimalTextLines(uint8 lines, uint8 spacing, FontSi
return part;
}
/**
* Widget part function for setting the alignment of text/images.
* @param align Alignment of text/image within widget.
* @ingroup NestedWidgetParts
*/
static inline NWidgetPart SetAlignment(StringAlignment align)
{
NWidgetPart part;
part.type = WPT_ALIGNMENT;
part.u.align.align = align;
return part;
}
/**
* Widget part function for setting filling.
* @param fill_x Horizontal filling step from minimal size.

2
src/window_gui.h
Unescape Escape View File

@ -140,7 +140,7 @@ enum WidgetDrawDistances {
/* widget.cpp */
void DrawFrameRect(int left, int top, int right, int bottom, Colours colour, FrameFlags flags);
void DrawCaption(const Rect &r, Colours colour, Owner owner, StringID str);
void DrawCaption(const Rect &r, Colours colour, Owner owner, StringID str, StringAlignment align);
/* window.cpp */
extern Window *_z_front_window;

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