Mercurial > hg > openttd
changeset 8301:c1ae8f75ad7f draft
(svn r11865) -Feature(tte): Support scrolling of drop down lists when in drag mode by moving the pointer above or below the list.
author | peter1138 <peter1138@openttd.org> |
---|---|
date | Tue, 15 Jan 2008 16:30:08 +0000 |
parents | ae1baac75172 |
children | 56a9dfa21fe7 |
files | src/widgets/dropdown.cpp |
diffstat | 1 files changed, 23 insertions(+), 0 deletions(-) [+] |
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--- a/src/widgets/dropdown.cpp +++ b/src/widgets/dropdown.cpp @@ -8,6 +8,7 @@ #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" @@ -51,6 +52,7 @@ byte selected_index; byte click_delay; bool drag_mode; + int scrolling; }; assert_compile(WINDOW_CUSTOM_SIZE >= sizeof(dropdown_d)); @@ -133,6 +135,17 @@ } } 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) { @@ -158,6 +171,16 @@ 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; }