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Fix the control issue with scroll bars. Still need to fix the displayed slider on them

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git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1608 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud 2010-09-10 23:34:14 +00:00
parent 6800cb7b9e
commit e44eb104fa
1 changed files with 16 additions and 3 deletions
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17
src/engine.c
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@ -1885,7 +1885,10 @@ void Window_draw_slider(T_Scroller_button * button)
11,button->Length-24,MC_Black/*MC_Dark*/);
if (button->Nb_elements>button->Nb_visibles)
slider_position+=Round_div(button->Position*(button->Length-24-button->Cursor_length),button->Nb_elements-button->Nb_visibles);
slider_position+=
(button->Length-24-button->Cursor_length)*(button->Position)/(button->Nb_elements-button->Nb_visibles);
//
//(button->Position*) / (button->Nb_elements-button->Nb_visibles));
Window_rectangle(button->Pos_X,
slider_position,
@ -2977,6 +2980,7 @@ short Window_get_clicked_button(void)
{
// If there is enough room to make the cursor move:
long mouse_pos;
long origin;
// Window_attribute2 receives the position of the cursor.
if (temp3->Is_horizontal)
@ -2984,7 +2988,16 @@ short Window_get_clicked_button(void)
else
mouse_pos =(Mouse_Y-Window_pos_Y) / Menu_factor_Y - (temp3->Pos_Y+12);
Window_attribute2 = mouse_pos * temp3->Nb_elements / (temp3->Length-24) - temp3->Nb_visibles/2;
// The following formula is wicked. The issue is that you want two
// different behaviors:
// *) If the range is bigger than the pixel precision, the last pixel
// should map to max value, exactly.
// *) Otherwise, the possible cursor positions are separated by
// at least one full pixel, so we should find the valid position
// closest to the center of the mouse cursor position pixel.
origin = (temp3->Nb_visibles-1)*(temp3->Length-24)/temp3->Nb_elements/2;
Window_attribute2 = (mouse_pos - origin) * (temp3->Nb_elements-(temp3->Cursor_length>1?0:1)) / (temp3->Length-24-1);
if (Window_attribute2<0)
Window_attribute2=0;