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(svn r11865) -Feature(tte): Support scrolling of drop down lists when in drag mode by moving the pointer above or below the list.

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This commit is contained in:
peter1138 2008-01-15 16:30:08 +00:00
parent 245f05a7cc
commit ab7cb0804d
1 changed files with 23 additions and 0 deletions
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23
src/widgets/dropdown.cpp
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@ -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 @@ struct dropdown_d {
byte selected_index;
byte click_delay;
bool drag_mode;
int scrolling;
};
assert_compile(WINDOW_CUSTOM_SIZE >= sizeof(dropdown_d));
@ -133,6 +135,17 @@ static void DropDownMenuWndProc(Window *w, WindowEvent *e)
}
} 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 @@ static void DropDownMenuWndProc(Window *w, WindowEvent *e)
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;
}