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(svn r16871) -Codechange: Generalize GetWidgetContentSize to UpdateWidgetSize for better control over widget size and resize steps.

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This commit is contained in:
alberth 2009-07-18 10:46:55 +00:00
parent 2b374824dc
commit 36576371c0
4 changed files with 177 additions and 134 deletions
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14
src/intro_gui.cpp
View File

@ -83,16 +83,18 @@ struct SelectGameWindow : public Window {
}
}
virtual Dimension GetWidgetContentSize(int widget)
virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *resize)
{
Dimension d = {0, 0};
if (widget == SGI_DIFFICULTIES) {
if (widget != SGI_DIFFICULTIES) return;
Dimension textdim = {0, 0};
for (uint i = STR_DIFFICULTY_LEVEL_EASY; i <= STR_DIFFICULTY_LEVEL_CUSTOM; i++) {
SetDParam(0, i);
d = maxdim(d, GetStringBoundingBox(STR_INTRO_DIFFICULTY));
textdim = maxdim(textdim, GetStringBoundingBox(STR_INTRO_DIFFICULTY));
}
}
return d;
textdim.width += padding.width;
textdim.height += padding.height;
*size = maxdim(*size, textdim);
}
virtual void OnClick(Point pt, int widget)

33
src/town_gui.cpp
View File

@ -643,18 +643,19 @@ public:
}
}
virtual Dimension GetWidgetContentSize(int widget)
virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *resize)
{
Dimension d = {0, 0};
switch (widget) {
case TDW_SORTNAME:
case TDW_SORTPOPULATION: {
d = GetStringBoundingBox(this->nested_array[widget]->widget_data);
d.width += WD_SORTBUTTON_ARROW_WIDTH * 2; // Doubled since the word is centered, also looks nice.
Dimension d = GetStringBoundingBox(this->nested_array[widget]->widget_data);
d.width += padding.width + WD_SORTBUTTON_ARROW_WIDTH * 2; // Doubled since the word is centered, also looks nice.
d.height += padding.height;
*size = maxdim(*size, d);
break;
}
case TDW_CENTERTOWN:
case TDW_CENTERTOWN: {
Dimension d = {0, 0};
for (uint i = 0; i < this->towns.Length(); i++) {
const Town *t = this->towns[i];
@ -664,15 +665,21 @@ public:
SetDParam(1, 10000000); // 10^7
d = maxdim(d, GetStringBoundingBox(STR_TOWN_DIRECTORY_TOWN));
}
d.width += 2 + 2; // Text is rendered with 2 pixel offset at both sides.
break;
case TDW_EMPTYBOTTOM:
SetDParam(0, 1000000000); // 10^9
d = GetStringBoundingBox(STR_TOWN_POPULATION);
d.width += padding.width + 2 + 2; // Text is rendered with 2 pixel offset at both sides.
d.height += padding.height;
*size = maxdim(*size, d);
resize->height = d.height;
break;
}
return d;
case TDW_EMPTYBOTTOM: {
SetDParam(0, 1000000000); // 10^9
Dimension d = GetStringBoundingBox(STR_TOWN_POPULATION);
d.width += padding.width;
d.height += padding.height;
*size = maxdim(*size, d);
break;
}
}
}
virtual void OnClick(Point pt, int widget)

169
src/widget.cpp
View File

@ -892,7 +892,7 @@ NWidgetBase::NWidgetBase(WidgetType tp) : ZeroedMemoryAllocator()
*
* 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.
* If \a w is not \c NULL, the function calls #Window::GetWidgetContentSize for each leaf widget and
* If \a w is not \c NULL, the function calls #Window::UpdateWidgetSize for each leaf widget and
* background widget without child with a non-negative index.
*
* @param w Optional window owning the widget.
@ -1692,12 +1692,18 @@ void NWidgetBackground::SetupSmallestSize(Window *w, bool init_array)
this->resize_y = this->child->resize_y;
} else {
Dimension d = {this->min_x, this->min_y};
Dimension resize = {this->resize_x, this->resize_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));
if (this->index >= 0) {
static const Dimension padding = {0, 0};
w->UpdateWidgetSize(this->index, &d, padding, &resize);
}
}
this->smallest_x = d.width;
this->smallest_y = d.height;
this->resize_x = resize.width;
this->resize_y = resize.height;
}
}
@ -1887,109 +1893,138 @@ NWidgetLeaf::NWidgetLeaf(WidgetType tp, Colours colour, int index, uint16 data,
void NWidgetLeaf::SetupSmallestSize(Window *w, bool init_array)
{
Dimension d = {this->min_x, this->min_y}; // At least minimal size is needed.
if (w == NULL) { // Conversion to widget array.
this->smallest_x = this->min_x;
this->smallest_y = this->min_y;
/* All other data is already at the right place. */
return;
}
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) {
if (init_array) {
if (this->index >= 0 && init_array) { // Fill w->nested_array[]
assert(w->nested_array_size > (uint)this->index);
w->nested_array[this->index] = this;
}
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.
*/
/* A non-NULL window pointer acts as switch to turn dynamic widget sizing on. */
Dimension size = {this->min_x, this->min_y};
Dimension resize = {this->resize_x, this->resize_y};
/* Get padding, and update size with the real content size if appropriate. */
const Dimension *padding = NULL;
switch (this->type) {
case WWT_EMPTY:
case WWT_MATRIX:
case WWT_SCROLLBAR:
case WWT_SCROLL2BAR:
case WWT_HSCROLLBAR:
case WWT_HSCROLLBAR: {
static const Dimension extra = {0, 0};
padding = &extra;
break;
case WWT_STICKYBOX:
}
case WWT_STICKYBOX: {
static const Dimension extra = {WD_STICKYBOX_LEFT + WD_STICKYBOX_RIGHT, WD_STICKYBOX_TOP + WD_STICKYBOX_BOTTOM};
padding = &extra;
if (NWidgetLeaf::stickybox_dimension.width == 0) {
NWidgetLeaf::stickybox_dimension = maxdim(GetSpriteSize(SPR_PIN_UP), GetSpriteSize(SPR_PIN_DOWN));
NWidgetLeaf::stickybox_dimension.width += WD_STICKYBOX_LEFT + WD_STICKYBOX_RIGHT;
NWidgetLeaf::stickybox_dimension.height += WD_STICKYBOX_TOP + WD_STICKYBOX_BOTTOM;
NWidgetLeaf::stickybox_dimension.width += extra.width;
NWidgetLeaf::stickybox_dimension.height += extra.height;
}
d2 = maxdim(d2, NWidgetLeaf::stickybox_dimension);
size = maxdim(size, NWidgetLeaf::stickybox_dimension);
break;
case WWT_RESIZEBOX:
}
case WWT_RESIZEBOX: {
static const Dimension extra = {WD_RESIZEBOX_LEFT + WD_RESIZEBOX_RIGHT, WD_RESIZEBOX_TOP + WD_RESIZEBOX_BOTTOM};
padding = &extra;
if (NWidgetLeaf::resizebox_dimension.width == 0) {
NWidgetLeaf::resizebox_dimension = maxdim(GetSpriteSize(SPR_WINDOW_RESIZE_LEFT), GetSpriteSize(SPR_WINDOW_RESIZE_RIGHT));
NWidgetLeaf::resizebox_dimension.width += WD_RESIZEBOX_LEFT + WD_RESIZEBOX_RIGHT;
NWidgetLeaf::resizebox_dimension.height += WD_RESIZEBOX_TOP + WD_RESIZEBOX_BOTTOM;
NWidgetLeaf::resizebox_dimension.width += extra.width;
NWidgetLeaf::resizebox_dimension.height += extra.height;
}
d2 = maxdim(d2, NWidgetLeaf::resizebox_dimension);
size = maxdim(size, NWidgetLeaf::resizebox_dimension);
break;
}
case WWT_PUSHBTN:
case WWT_EDITBOX:
d2.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
d2.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
case WWT_EDITBOX: {
static const Dimension extra = {WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT, WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM};
padding = &extra;
break;
}
case WWT_IMGBTN:
case WWT_PUSHIMGBTN:
d2 = maxdim(d2, GetSpriteSize(this->widget_data));
d2.height += WD_IMGBTN_TOP + WD_IMGBTN_BOTTOM;
d2.width += WD_IMGBTN_LEFT + WD_IMGBTN_RIGHT;
case WWT_PUSHIMGBTN: {
static const Dimension extra = {WD_IMGBTN_LEFT + WD_IMGBTN_RIGHT, WD_IMGBTN_TOP + WD_IMGBTN_BOTTOM};
padding = &extra;
Dimension d2 = GetSpriteSize(this->widget_data);
d2.width += extra.width;
d2.height += extra.height;
size = maxdim(size, d2);
break;
case WWT_IMGBTN_2:
d2 = maxdim(d2, GetSpriteSize(this->widget_data));
d2 = maxdim(d2, GetSpriteSize(this->widget_data + 1));
d2.height += WD_IMGBTN2_TOP + WD_IMGBTN2_BOTTOM;
d2.width += WD_IMGBTN2_LEFT + WD_IMGBTN2_RIGHT;
}
case WWT_IMGBTN_2: {
static const Dimension extra = {WD_IMGBTN2_LEFT + WD_IMGBTN2_RIGHT, WD_IMGBTN2_TOP + WD_IMGBTN2_BOTTOM};
padding = &extra;
Dimension d2 = maxdim(GetSpriteSize(this->widget_data), GetSpriteSize(this->widget_data + 1));
d2.width += extra.width;
d2.height += extra.height;
size = maxdim(size, d2);
break;
case WWT_CLOSEBOX:
}
case WWT_CLOSEBOX: {
static const Dimension extra = {WD_CLOSEBOX_LEFT + WD_CLOSEBOX_RIGHT, WD_CLOSEBOX_TOP + WD_CLOSEBOX_BOTTOM};
padding = &extra;
if (NWidgetLeaf::closebox_dimension.width == 0) {
NWidgetLeaf::closebox_dimension = maxdim(GetStringBoundingBox(STR_BLACK_CROSS), GetStringBoundingBox(STR_SILVER_CROSS));
NWidgetLeaf::closebox_dimension.width += WD_CLOSEBOX_LEFT + WD_CLOSEBOX_RIGHT;
NWidgetLeaf::closebox_dimension.height += WD_CLOSEBOX_TOP + WD_CLOSEBOX_BOTTOM;
NWidgetLeaf::closebox_dimension.width += extra.width;
NWidgetLeaf::closebox_dimension.height += extra.height;
}
d2 = maxdim(d2, NWidgetLeaf::closebox_dimension);
size = maxdim(size, NWidgetLeaf::closebox_dimension);
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;
case WWT_TEXTBTN_2: {
static const Dimension extra = {WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT, WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM};
padding = &extra;
Dimension d2 = GetStringBoundingBox(this->widget_data);
d2.width += extra.width;
d2.height += extra.height;
size = maxdim(size, d2);
break;
}
case WWT_LABEL:
case WWT_TEXT:
d2 = maxdim(d2, GetStringBoundingBox(this->widget_data));
case WWT_TEXT: {
static const Dimension extra = {0, 0};
padding = &extra;
size = maxdim(size, 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 + WD_CAPTIONTEXT_BOTTOM;
}
case WWT_CAPTION: {
static const Dimension extra = {WD_CAPTIONTEXT_LEFT + WD_CAPTIONTEXT_RIGHT, WD_CAPTIONTEXT_TOP + WD_CAPTIONTEXT_BOTTOM};
padding = &extra;
Dimension d2 = GetStringBoundingBox(this->widget_data);
d2.width += extra.width;
d2.height += extra.height;
size = maxdim(size, d2);
break;
case WWT_DROPDOWN:
d2 = maxdim(d2, GetStringBoundingBox(this->widget_data));
d2.width += WD_DROPDOWNTEXT_LEFT + WD_DROPDOWNTEXT_RIGHT;
d2.height += WD_DROPDOWNTEXT_TOP + WD_DROPDOWNTEXT_BOTTOM;
}
case WWT_DROPDOWN: {
static const Dimension extra = {WD_DROPDOWNTEXT_LEFT + WD_DROPDOWNTEXT_RIGHT, WD_DROPDOWNTEXT_TOP + WD_DROPDOWNTEXT_BOTTOM};
padding = &extra;
Dimension d2 = GetStringBoundingBox(this->widget_data);
d2.width += extra.width;
d2.height += extra.height;
size = maxdim(size, d2);
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. */
if (this->index >= 0) w->UpdateWidgetSize(this->index, &size, *padding, &resize);
this->smallest_x = size.width;
this->smallest_y = size.height;
this->resize_x = resize.width;
this->resize_y = resize.height;
/* this->fill_x and this->fill_y are already correct. */
}
void NWidgetLeaf::Draw(const Window *w)

21
src/window_gui.h
View File

@ -521,18 +521,17 @@ public:
virtual void DrawWidget(const Rect &r, int widget) const {}
/**
* Compute size of the contents of a widget.
* If no useful size can be computed, return null-size (both width and height \c 0).
* @param widget Number of the widget to get the size of.
* @return Size of the contents of the widget.
* @note If the contents ever becomes larger than what is returned here, the window should be re-initialized (with #Window::ReInit),
* and this function should return a larger size.
* Update size and resize step of a widget in the window.
* After retrieval of the minimal size and the resize-steps of a widget, this function is called to allow further refinement,
* typically by computing the real maximal size of the content. Afterwards, \a size is taken to be the minimal size of the widget
* and \a resize is taken to contain the resize steps. For the convenience of the callee, \a padding contains the amount of
* padding between the content and the edge of the widget. This should be added to the returned size.
* @param widget Widget number.
* @param size Size of the widget.
* @param padding Recommended amount of space between the widget content and the widget edge.
* @param resize Resize step of the widget.
*/
virtual Dimension GetWidgetContentSize(int widget)
{
Dimension d = {0, 0};
return d;
}
virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *resize) {}
/**
* Called when window gains focus