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@ r8802:3a3f8a172f6c
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Location: cpp/openttd-patchpack/source/src/widgets/dropdown.cpp
r8802:3a3f8a172f6c
8.7 KiB
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(svn r12542) -Fix [Makefile]: Don't install scenarios into the current user's homedir when running 'make install', that is silly. Simply always install scenarios system wide instead.
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#include "../stdafx.h"
#include "../openttd.h"
#include "../strings_type.h"
#include "../window_gui.h"
#include "../strings_func.h"
#include "../strings_type.h"
#include "../gfx_func.h"
#include "../window_func.h"
#include "../core/math_func.hpp"
#include "dropdown_type.h"
#include "dropdown_func.h"
#include "../table/sprites.h"
#include "table/strings.h"
StringID DropDownListItem::String() const
{
return STR_NULL;
}
StringID DropDownListStringItem::String() const
{
return this->string;
}
StringID DropDownListParamStringItem::String() const
{
for (uint i = 0; i < lengthof(this->decode_params); i++) SetDParam(i, this->decode_params[i]);
return this->string;
}
/**
* Delete all items of a drop down list and the list itself
* @param list List to delete.
*/
static void DeleteDropDownList(DropDownList *list)
{
for (DropDownList::iterator it = list->begin(); it != list->end(); ++it) {
DropDownListItem *item = *it;
delete item;
}
delete list;
}
struct dropdown_d {
WindowClass parent_wnd_class;
WindowNumber parent_wnd_num;
byte parent_button;
DropDownList *list;
int selected_index;
byte click_delay;
bool drag_mode;
int scrolling;
};
assert_compile(WINDOW_CUSTOM_SIZE >= sizeof(dropdown_d));
static const Widget _dropdown_menu_widgets[] = {
{ WWT_PANEL, RESIZE_NONE, 0, 0, 0, 0, 0, 0x0, STR_NULL},
{ WWT_SCROLLBAR, RESIZE_NONE, 0, 0, 0, 0, 0, 0x0, STR_0190_SCROLL_BAR_SCROLLS_LIST},
{ WIDGETS_END},
};
static int GetDropDownItem(const Window *w)
{
if (GetWidgetFromPos(w, _cursor.pos.x - w->left, _cursor.pos.y - w->top) < 0) return -1;
int y = _cursor.pos.y - w->top - 2 + w->vscroll.pos * 10;
if (y < 0) return -1;
uint selected_row = y / 10;
const DropDownList *list = WP(w, dropdown_d).list;
if (selected_row >= list->size()) return -1;
for (DropDownList::const_iterator it = list->begin(); it != list->end(); ++it, selected_row--) {
if (selected_row == 0) {
const DropDownListItem *item = *it;
if (item->masked || item->String() == STR_NULL) return -1;
return item->result;
}
}
return -1;
}
static void DropDownMenuWndProc(Window *w, WindowEvent *e)
{
switch (e->event) {
case WE_PAINT: {
DrawWindowWidgets(w);
int x = 1;
int y = 2 - w->vscroll.pos * 10;
int sel = WP(w, dropdown_d).selected_index;
int width = w->widget[0].right - 3;
int height = w->widget[0].bottom - 3;
DropDownList *list = WP(w, dropdown_d).list;
for (DropDownList::const_iterator it = list->begin(); it != list->end(); ++it) {
if (y >= 0 && y <= height) {
const DropDownListItem *item = *it;
if (item->String() != STR_NULL) {
if (sel == item->result) GfxFillRect(x + 1, y, x + width, y + 9, 0);
DrawStringTruncated(x + 2, y, item->String(), sel == item->result ? TC_WHITE : TC_BLACK, x + width);
if (item->masked) {
GfxFillRect(x, y, x + width, y + 9,
(1 << PALETTE_MODIFIER_GREYOUT) | _colour_gradient[w->widget[0].color][5]
);
}
} else {
int c1 = _colour_gradient[w->widget[0].color][3];
int c2 = _colour_gradient[w->widget[0].color][7];
GfxFillRect(x + 1, y + 3, x + w->width - 5, y + 3, c1);
GfxFillRect(x + 1, y + 4, x + w->width - 5, y + 4, c2);
}
}
y += 10;
}
} break;
case WE_CLICK: {
if (e->we.click.widget != 0) break;
int item = GetDropDownItem(w);
if (item >= 0) {
WP(w, dropdown_d).click_delay = 4;
WP(w, dropdown_d).selected_index = item;
SetWindowDirty(w);
}
} break;
case WE_TICK:
if (WP(w, dropdown_d).scrolling == -1) {
w->vscroll.pos = max(0, w->vscroll.pos - 1);
SetWindowDirty(w);
} else if (WP(w, dropdown_d).scrolling == 1) {
w->vscroll.pos = min(w->vscroll.count - w->vscroll.cap, w->vscroll.pos + 1);
SetWindowDirty(w);
}
WP(w, dropdown_d).scrolling = 0;
break;
case WE_MOUSELOOP: {
Window *w2 = FindWindowById(WP(w, dropdown_d).parent_wnd_class, WP(w,dropdown_d).parent_wnd_num);
if (w2 == NULL) {
DeleteWindow(w);
return;
}
if (WP(w, dropdown_d).click_delay != 0 && --WP(w,dropdown_d).click_delay == 0) {
WindowEvent e;
e.event = WE_DROPDOWN_SELECT;
e.we.dropdown.button = WP(w, dropdown_d).parent_button;
e.we.dropdown.index = WP(w, dropdown_d).selected_index;
w2->wndproc(w2, &e);
DeleteWindow(w);
return;
}
if (WP(w, dropdown_d).drag_mode) {
int item = GetDropDownItem(w);
if (!_left_button_clicked) {
WP(w, dropdown_d).drag_mode = false;
if (item < 0) return;
WP(w, dropdown_d).click_delay = 2;
} else {
if (_cursor.pos.y <= w->top + 2) {
/* Cursor is above the list, set scroll up */
WP(w, dropdown_d).scrolling = -1;
return;
} else if (_cursor.pos.y >= w->top + w->height - 2) {
/* Cursor is below list, set scroll down */
WP(w, dropdown_d).scrolling = 1;
return;
}
if (item < 0) return;
}
WP(w, dropdown_d).selected_index = item;
SetWindowDirty(w);
}
} break;
case WE_DESTROY: {
Window *w2 = FindWindowById(WP(w, dropdown_d).parent_wnd_class, WP(w,dropdown_d).parent_wnd_num);
if (w2 != NULL) {
w2->RaiseWidget(WP(w, dropdown_d).parent_button);
w2->InvalidateWidget(WP(w, dropdown_d).parent_button);
}
DeleteDropDownList(WP(w, dropdown_d).list);
} break;
}
}
void ShowDropDownList(Window *w, DropDownList *list, int selected, int button)
{
bool is_dropdown_menu_shown = w->IsWidgetLowered(button);
DeleteWindowById(WC_DROPDOWN_MENU, 0);
if (is_dropdown_menu_shown) {
DeleteDropDownList(list);
return;
}
w->LowerWidget(button);
w->InvalidateWidget(button);
/* Our parent's button widget is used to determine where to place the drop
* down list window. */
const Widget *wi = &w->widget[button];
/* The preferred position is just below the dropdown calling widget */
int top = w->top + wi->bottom + 1;
int height = list->size() * 10 + 4;
/* Check if the status bar is visible, as we don't want to draw over it */
Window *w3 = FindWindowById(WC_STATUS_BAR, 0);
int screen_bottom = w3 == NULL ? _screen.height : w3->top;
bool scroll = false;
/* Check if the dropdown will fully fit below the widget */
if (top + height >= screen_bottom) {
w3 = FindWindowById(WC_MAIN_TOOLBAR, 0);
int screen_top = w3 == NULL ? 0 : w3->top + w3->height;
/* If not, check if it will fit above the widget */
if (w->top + wi->top - height > screen_top) {
top = w->top + wi->top - height;
} else {
/* ... and lastly if it won't, enable the scroll bar and fit the
* list in below the widget */
int rows = (screen_bottom - 4 - top) / 10;
height = rows * 10 + 4;
scroll = true;
}
}
Window *dw = AllocateWindow(
w->left + wi->left,
top,
wi->right - wi->left + 1,
height,
DropDownMenuWndProc,
WC_DROPDOWN_MENU,
_dropdown_menu_widgets);
dw->widget[0].color = wi->color;
dw->widget[0].right = wi->right - wi->left;
dw->widget[0].bottom = height - 1;
dw->SetWidgetHiddenState(1, !scroll);
if (scroll) {
/* We're scrolling, so enable the scroll bar and shrink the list by
* the scrollbar's width */
dw->widget[1].color = wi->color;
dw->widget[1].right = dw->widget[0].right;
dw->widget[1].left = dw->widget[1].right - 11;
dw->widget[1].bottom = height - 1;
dw->widget[0].right -= 12;
dw->vscroll.cap = (height - 4) / 10;
dw->vscroll.count = list->size();
}
dw->desc_flags = WDF_DEF_WIDGET;
dw->flags4 &= ~WF_WHITE_BORDER_MASK;
WP(dw, dropdown_d).parent_wnd_class = w->window_class;
WP(dw, dropdown_d).parent_wnd_num = w->window_number;
WP(dw, dropdown_d).parent_button = button;
WP(dw, dropdown_d).list = list;
WP(dw, dropdown_d).selected_index = selected;
WP(dw, dropdown_d).click_delay = 0;
WP(dw, dropdown_d).drag_mode = true;
}
void ShowDropDownMenu(Window *w, const StringID *strings, int selected, int button, uint32 disabled_mask, uint32 hidden_mask)
{
/* Don't create a new list if we're just closing an existing menu */
if (w->IsWidgetLowered(button)) {
DeleteWindowById(WC_DROPDOWN_MENU, 0);
return;
}
uint result = 0;
DropDownList *list = new DropDownList();
for (uint i = 0; strings[i] != INVALID_STRING_ID; i++) {
if (!HasBit(hidden_mask, i)) {
list->push_back(new DropDownListStringItem(strings[i], result, HasBit(disabled_mask, i)));
}
result++;
}
/* No entries in the list? */
if (list->size() == 0) {
DeleteDropDownList(list);
return;
}
ShowDropDownList(w, list, selected, button);
}
void HideDropDownMenu(Window *pw)
{
Window **wz;
FOR_ALL_WINDOWS(wz) {
if ((*wz)->window_class != WC_DROPDOWN_MENU) continue;
if (pw->window_class == WP(*wz, dropdown_d).parent_wnd_class &&
pw->window_number == WP(*wz, dropdown_d).parent_wnd_num) {
DeleteWindow(*wz);
break;
}
}
}
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