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(svn r16740) -Codechange: Self-sizing widgets in intro screen, town directory, and found town windows.

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This commit is contained in:
alberth
2009-07-04 15:35:36 +00:00
parent 2385aeae3c
commit d65c6cae54
6 changed files with 173 additions and 34 deletions
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124
src/widget.cpp
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@@ -891,15 +891,18 @@ NWidgetBase::NWidgetBase(WidgetType tp) : ZeroedMemoryAllocator()
/* ~NWidgetContainer() takes care of #next and #prev data members. */
/**
* @fn int NWidgetBase::SetupSmallestSize()
* @fn int NWidgetBase::SetupSmallestSize(Window *w)
* Compute smallest size needed by the widget.
*
* The smallest size of a widget is the smallest size that a widget needs to
* display itself properly.
* In addition, filling and resizing of the widget are computed.
* display itself properly. In addition, filling and resizing of the widget are computed.
* If \a w is not \c NULL, the function calls #Window::GetWidgetContentSize for each leaf widget and
* background widget without child with a non-negative index.
*
* @param w Optional window owning the widget.
* @return Biggest index in the widget array of all child widgets (\c -1 if no index is used).
*
* @note After the computation, the results can be queried by accessing the data members of the widget.
* @note After the computation, the results can be queried by accessing the #smallest_x and #smallest_y data members of the widget.
*/
/**
@@ -1083,14 +1086,6 @@ void NWidgetCore::SetDataTip(uint16 widget_data, StringID tool_tip)
this->tool_tip = tool_tip;
}
int NWidgetCore::SetupSmallestSize()
{
this->smallest_x = this->min_x;
this->smallest_y = this->min_y;
/* All other data is already at the right place. */
return this->index;
}
void NWidgetCore::FillNestedArray(NWidgetCore **array, uint length)
{
if (this->index >= 0 && (uint)(this->index) < length) array[this->index] = this;
@@ -1237,7 +1232,7 @@ NWidgetStacked::NWidgetStacked(WidgetType tp) : NWidgetContainer(tp)
{
}
int NWidgetStacked::SetupSmallestSize()
int NWidgetStacked::SetupSmallestSize(Window *w)
{
/* First sweep, recurse down and compute minimal size and filling. */
int biggest_index = -1;
@@ -1248,7 +1243,7 @@ int NWidgetStacked::SetupSmallestSize()
this->resize_x = (this->head != NULL) ? 1 : 0;
this->resize_y = (this->head != NULL) ? 1 : 0;
for (NWidgetBase *child_wid = this->head; child_wid != NULL; child_wid = child_wid->next) {
int idx = child_wid->SetupSmallestSize();
int idx = child_wid->SetupSmallestSize(w);
biggest_index = max(biggest_index, idx);
this->smallest_x = max(this->smallest_x, child_wid->smallest_x + child_wid->padding_left + child_wid->padding_right);
@@ -1349,7 +1344,7 @@ NWidgetHorizontal::NWidgetHorizontal(NWidContainerFlags flags) : NWidgetPIPConta
{
}
int NWidgetHorizontal::SetupSmallestSize()
int NWidgetHorizontal::SetupSmallestSize(Window *w)
{
int biggest_index = -1;
this->smallest_x = 0; // Sum of minimal size of all childs.
@@ -1362,7 +1357,7 @@ int NWidgetHorizontal::SetupSmallestSize()
/* 1. Forward call, collect biggest nested array index, and longest child length. */
uint longest = 0; // Longest child found.
for (NWidgetBase *child_wid = this->head; child_wid != NULL; child_wid = child_wid->next) {
int idx = child_wid->SetupSmallestSize();
int idx = child_wid->SetupSmallestSize(w);
biggest_index = max(biggest_index, idx);
longest = max(longest, child_wid->smallest_x);
}
@@ -1500,7 +1495,7 @@ NWidgetVertical::NWidgetVertical(NWidContainerFlags flags) : NWidgetPIPContainer
{
}
int NWidgetVertical::SetupSmallestSize()
int NWidgetVertical::SetupSmallestSize(Window *w)
{
int biggest_index = -1;
this->smallest_x = 0; // Biggest child.
@@ -1513,7 +1508,7 @@ int NWidgetVertical::SetupSmallestSize()
/* 1. Forward call, collect biggest nested array index, and longest child length. */
uint highest = 0; // Highest child found.
for (NWidgetBase *child_wid = this->head; child_wid != NULL; child_wid = child_wid->next) {
int idx = child_wid->SetupSmallestSize();
int idx = child_wid->SetupSmallestSize(w);
biggest_index = max(biggest_index, idx);
highest = max(highest, child_wid->smallest_y);
}
@@ -1628,7 +1623,7 @@ NWidgetSpacer::NWidgetSpacer(int length, int height) : NWidgetResizeBase(NWID_SP
this->SetResize(0, 0);
}
int NWidgetSpacer::SetupSmallestSize()
int NWidgetSpacer::SetupSmallestSize(Window *w)
{
this->smallest_x = this->min_x;
this->smallest_y = this->min_y;
@@ -1719,11 +1714,11 @@ void NWidgetBackground::SetPIP(uint8 pip_pre, uint8 pip_inter, uint8 pip_post)
this->child->SetPIP(pip_pre, pip_inter, pip_post);
}
int NWidgetBackground::SetupSmallestSize()
int NWidgetBackground::SetupSmallestSize(Window *w)
{
int biggest_index = this->index;
if (this->child != NULL) {
int idx = this->child->SetupSmallestSize();
int idx = this->child->SetupSmallestSize(w);
biggest_index = max(biggest_index, idx);
this->smallest_x = this->child->smallest_x;
@@ -1733,8 +1728,13 @@ int NWidgetBackground::SetupSmallestSize()
this->resize_x = this->child->resize_x;
this->resize_y = this->child->resize_y;
} else {
this->smallest_x = this->min_x;
this->smallest_y = this->min_y;
Dimension d = {this->min_x, this->min_y};
if (w != NULL) { // A non-NULL window pointer acts as switch to turn dynamic widget size on.
if (this->index >= 0) d = maxdim(d, w->GetWidgetContentSize(this->index));
if (this->type == WWT_FRAME || this->type == WWT_INSET) d = maxdim(d, GetStringBoundingBox(this->widget_data));
}
this->smallest_x = d.width;
this->smallest_y = d.height;
}
return biggest_index;
@@ -1918,6 +1918,82 @@ NWidgetLeaf::NWidgetLeaf(WidgetType tp, Colours colour, int index, uint16 data,
}
}
int NWidgetLeaf::SetupSmallestSize(Window *w)
{
Dimension d = {this->min_x, this->min_y}; // At least minimal size is needed.
if (w != NULL) { // A non-NULL window pointer acts as switch to turn dynamic widget sizing on.
Dimension d2 = {0, 0};
if (this->index >= 0) d2 = maxdim(d2, w->GetWidgetContentSize(this->index)); // If appropriate, ask window for smallest size.
/* Check size requirements of the widget itself too.
* Also, add the offset used for rendering.
*/
switch (this->type) {
case WWT_EMPTY:
case WWT_MATRIX:
case WWT_SCROLLBAR:
case WWT_SCROLL2BAR:
case WWT_HSCROLLBAR:
case WWT_STICKYBOX:
case WWT_RESIZEBOX:
break;
case WWT_PUSHBTN:
case WWT_EDITBOX:
d2.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
d2.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
break;
case WWT_IMGBTN:
case WWT_PUSHIMGBTN:
case WWT_IMGBTN_2:
d2 = maxdim(d2, GetSpriteSize(this->widget_data));
d2.height += WD_IMGBTN_TOP;
d2.width += WD_IMGBTN_LEFT;
break;
case WWT_CLOSEBOX:
d2 = maxdim(d2, GetSpriteSize(this->widget_data));
d2.height += WD_CLOSEBOX_TOP;
break;
case WWT_TEXTBTN:
case WWT_PUSHTXTBTN:
case WWT_TEXTBTN_2:
d2 = maxdim(d2, GetStringBoundingBox(this->widget_data));
d2.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
d2.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
break;
case WWT_LABEL:
case WWT_TEXT:
d2 = maxdim(d2, GetStringBoundingBox(this->widget_data));
break;
case WWT_CAPTION:
d2 = maxdim(d2, GetStringBoundingBox(this->widget_data));
d2.width += WD_CAPTIONTEXT_LEFT + WD_CAPTIONTEXT_RIGHT;
d2.height += WD_CAPTIONTEXT_TOP;
break;
case WWT_DROPDOWN:
d2 = maxdim(d2, GetStringBoundingBox(this->widget_data));
d2.width += WD_DROPDOWNTEXT_LEFT + WD_DROPDOWNTEXT_RIGHT;
d2.height += WD_DROPDOWNTEXT_TOP;
break;
default:
NOT_REACHED();
}
d = maxdim(d, d2);
}
this->smallest_x = d.width;
this->smallest_y = d.height;
/* All other data is already at the right place. */
return this->index;
}
void NWidgetLeaf::Draw(const Window *w)
{
if (this->current_x == 0 || this->current_y == 0) return;
@@ -2062,7 +2138,7 @@ NWidgetBase *NWidgetLeaf::GetWidgetOfType(WidgetType tp)
Widget *InitializeNWidgets(NWidgetBase *nwid, bool rtl)
{
/* Initialize nested widgets. */
int biggest_index = nwid->SetupSmallestSize();
int biggest_index = nwid->SetupSmallestSize(NULL);
nwid->AssignSizePosition(ST_ARRAY, 0, 0, nwid->smallest_x, nwid->smallest_y, (nwid->resize_x > 0), (nwid->resize_y > 0), rtl);
/* Construct a local widget array and initialize all its types to #WWT_LAST. */