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work on back and forth between scrolling and arrow navigation

This commit is contained in:
Allen Webster 2016-05-17 23:31:55 -04:00
parent 040e81014e
commit 842c2b8f7b
2 changed files with 71 additions and 20 deletions
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37
4ed_file_view.cpp
View File

@ -3697,7 +3697,44 @@ step_file_view(System_Functions *system, View *view, View *active_view, Input_Su
id.id[0] = (u64)(hdir) + 1;
if (gui_begin_list(target, id, view->list_i, 0, &update)){
i32 *list_i = &view->list_i;
if (update.has_adjustment){
*list_i = update.adjustment_value;
}
if (update.has_index_position){
// TODO(allen): update scrolling here.
// TODO(allen): THOUGHT:
// Could we better abstract this idea of having something that
// wants to stay in view so that users don't have to manage this
// nasty view back and forth directly if they don't want?
}
b32 indirectly_activate = 0;
for (i32 j = 0; j < keys.count; ++j){
i16 key = keys.keys[j].keycode;
switch (key){
case key_up:
--*list_i;
break;
case key_down:
++*list_i;
break;
case '\n': case '\t':
indirectly_activate = 1;
break;
}
}
gui_rollback(target, &update);
gui_begin_list(target, id, *list_i, indirectly_activate, 0);
#if 0
gui_standard_list(target, id, &keys, &view->list_i, &update);
#endif
}
{

54
4ed_gui.cpp
View File

@ -150,6 +150,8 @@ struct GUI_Target{
// for more than one list. Perhaps just throw in a hash table?
// Or maybe this only needs to be tracked for the active list.
i32 list_max;
b32 has_list_index_position;
i32_Rect list_index_position;
f32 delta;
u32 scroll_id;
@ -159,9 +161,12 @@ struct GUI_Target{
struct GUI_Item_Update{
i32 partition_point;
b32 activate;
b32 has_adjustment;
i32 adjustment_value;
b32 has_index_position;
i32_Rect index_position;
};
struct GUI_Header{
@ -207,13 +212,13 @@ enum GUI_Command_Type{
guicom_end_scrollable_section,
};
internal b32
inline b32
gui_id_eq(GUI_id id1, GUI_id id2){
b32 result = (id1.id[0] == id2.id[0] && id1.id[1] == id2.id[1]);
return(result);
}
internal b32
inline b32
gui_id_is_null(GUI_id id){
b32 result = (id.id[0] == 0 && id.id[1] == 0);
return(result);
@ -248,26 +253,30 @@ gui_rollback(GUI_Target *target, GUI_Item_Update *update){
}
internal void
gui_fill_item_update(GUI_Item_Update *update, GUI_Target *target, GUI_Header *h,
b32 activate){
gui_fill_update(GUI_Item_Update *update, GUI_Target *target, GUI_Header *h){
if (update){
update->partition_point = (i32)((char*)h - (char*)target->push.base);
update->activate = activate;
update->has_adjustment = 0;
update->has_index_position = 0;
}
}
internal void
gui_fill_item_update(GUI_Item_Update *update, GUI_Target *target, GUI_Header *h,
b32 active, i32 adjustment_value){
gui_update_adjustment(GUI_Item_Update *update, i32 adjustment_value){
if (update){
update->partition_point = (i32)((char*)h - (char*)target->push.base);
update->activate = active;
update->has_adjustment = 1;
update->adjustment_value = adjustment_value;
}
}
internal void
gui_update_position(GUI_Item_Update *update, i32_Rect position){
if (update){
update->has_index_position = 1;
update->index_position = position;
}
}
internal void*
gui_push_item(GUI_Target *target, void *item, i32 size){
void *dest = partition_allocate(&target->push, size);
@ -406,6 +415,7 @@ gui_begin_top_level(GUI_Target *target, Input_Summary input){
internal void
gui_end_top_level(GUI_Target *target){
gui_push_simple_command(target, guicom_null);
target->has_list_index_position = 0;
}
internal void
@ -434,7 +444,7 @@ gui_do_text_with_cursor(GUI_Target *target, i32 pos, String text, GUI_Item_Updat
result = target->has_keys;
if (result){
gui_fill_item_update(update, target, h, 0);
gui_fill_update(update, target, h);
target->animating = 1;
}
@ -491,15 +501,17 @@ gui_begin_list(GUI_Target *target, GUI_id id, i32 list_i, b32 activate_item, GUI
}
if (result){
gui_fill_update(update, target, h);
if (list_i < 0){
gui_fill_item_update(update, target, h, active, 0);
gui_update_adjustment(update, 0);
}
else if (list_i >= target->list_max){
gui_fill_item_update(update, target, h, active, target->list_max - 1);
gui_update_adjustment(update, target->list_max - 1);
}
else{
gui_fill_item_update(update, target, h, active);
if (target->has_list_index_position){
gui_update_position(update, target->list_index_position);
}
target->animating = 1;
}
@ -1031,9 +1043,16 @@ gui_interpret(GUI_Target *target, GUI_Session *session, GUI_Header *h){
case guicom_fixed_option:
case guicom_fixed_option_checkbox:
{
give_to_user = 1;
rect = gui_layout_fixed_h(session, y, session->line_height * 2);
end_v = rect.y1;
end_section = section;
if (session->list.in_list){
if (session->list.auto_hot == session->list.index){
result.auto_hot = 1;
target->has_list_index_position = 1;
target->list_index_position = rect;
}
if (session->list.auto_activate == session->list.index){
result.auto_activate = 1;
@ -1041,11 +1060,6 @@ gui_interpret(GUI_Target *target, GUI_Session *session, GUI_Header *h){
++session->list.index;
}
give_to_user = 1;
rect = gui_layout_fixed_h(session, y, session->line_height * 2);
end_v = rect.y1;
end_section = section;
}break;
case guicom_button: