4coder/custom/4coder_events.cpp

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/*
* 4coder event helpers
*/
// TOP
function b32
has_modifier(Key_Code *mods, i32 count, Key_Code modifier){
b32 result = false;
for (i32 i = 0; i < count; i += 1){
if (mods[i] == modifier){
result = true;
break;
}
}
return(result);
}
function b32
has_modifier(Input_Modifier_Set_Fixed *set, Key_Code modifier){
return(has_modifier(set->mods, set->count, modifier));
}
function b32
has_modifier(Input_Modifier_Set *set, Key_Code modifier){
return(has_modifier(set->mods, set->count, modifier));
}
function Input_Modifier_Set
copy_modifier_set(Arena *arena, Input_Modifier_Set_Fixed *set){
Input_Modifier_Set result = {};
result.count = set->count;
if (result.count > 0){
result.mods = push_array_write(arena, Key_Code, result.count, set->mods);
}
return(result);
}
function void
add_modifier(Input_Modifier_Set_Fixed *set, Key_Code mod){
if (!has_modifier(set, mod)){
if (set->count < ArrayCount(set->mods)){
set->mods[set->count] = mod;
set->count += 1;
}
}
}
function void
remove_modifier(Input_Modifier_Set_Fixed *set, Key_Code mod){
i32 count = set->count;
Key_Code *mods = set->mods;
for (i32 i = 0; i < count; i += 1){
if (mods[i] == mod){
i32 new_count = count - 1;
mods[i] = mods[new_count];
set->count = new_count;
break;
}
}
}
function void
set_modifier(Input_Modifier_Set_Fixed *set, Key_Code mod, b32 val){
if (val){
add_modifier(set, mod);
}
else{
remove_modifier(set, mod);
}
}
function Input_Modifier_Set
copy_modifier_set(Arena *arena, Input_Modifier_Set *set){
Input_Modifier_Set result = {};
result.count = set->count;
if (result.count > 0){
result.mods = push_array_write(arena, Key_Code, result.count, set->mods);
}
return(result);
}
function Input_Modifier_Set*
get_modifiers(Input_Event *event){
Input_Modifier_Set *result = 0;
switch (event->kind){
case InputEventKind_KeyStroke:
{
result = &event->key.modifiers;
}break;
case InputEventKind_MouseButton:
{
result = &event->mouse.modifiers;
}break;
case InputEventKind_MouseWheel:
{
result = &event->mouse_wheel.modifiers;
}break;
case InputEventKind_MouseMove:
{
result = &event->mouse_move.modifiers;
}break;
}
return(result);
}
function b32
has_modifier(Input_Event *event, Key_Code modifier){
Input_Modifier_Set *set = get_modifiers(event);
return(has_modifier(set, modifier));
}
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function b32
is_unmodified_key(Input_Event *event){
b32 result = false;
if (event->kind == InputEventKind_KeyStroke){
Input_Modifier_Set *set = get_modifiers(event);
result = (!has_modifier(set, KeyCode_Control) &&
!has_modifier(set, KeyCode_Alt) &&
!has_modifier(set, KeyCode_Shift) &&
!has_modifier(set, KeyCode_Command));
}
return(result);
}
function b32
is_modified(Input_Event *event){
Input_Modifier_Set *mods = get_modifiers(event);
b32 result = false;
if (mods != 0){
result = (mods->count > 0);
}
return(result);
}
function String_Const_u8
to_writable(Input_Event *event){
String_Const_u8 result = {};
if (event->kind == InputEventKind_TextInsert){
result = event->text.string;
}
return(result);
}
function b32
match_key_code(Input_Event *event, Key_Code code){
return(event->kind == InputEventKind_KeyStroke && event->key.code == code);
}
function b32
match_mouse_code(Input_Event *event, Mouse_Code code){
return(event->kind == InputEventKind_MouseButton && event->mouse.code == code);
}
function b32
match_mouse_code_release(Input_Event *event, Mouse_Code code){
return(event->kind == InputEventKind_MouseButtonRelease && event->mouse.code == code);
}
function b32
match_core_code(Input_Event *event, Core_Code code){
return(event->kind == InputEventKind_Core && event->core.code == code);
}
function Event_Property
get_event_properties(Input_Event *event){
Event_Property flags = 0;
switch (event->kind){
case InputEventKind_TextInsert:
{
flags |= EventProperty_TextInsert;
}break;
case InputEventKind_KeyStroke:
{
if (event->key.code == KeyCode_Escape){
flags |= EventProperty_Escape;
}
flags |= EventProperty_AnyKey;
}break;
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case InputEventKind_KeyRelease:
{
flags |= EventProperty_AnyKeyRelease;
}break;
case InputEventKind_MouseButton:
{
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flags |= EventProperty_MouseButton;
}break;
case InputEventKind_MouseButtonRelease:
{
flags |= EventProperty_MouseRelease;
}break;
case InputEventKind_MouseWheel:
{
flags |= EventProperty_MouseWheel;
}break;
case InputEventKind_MouseMove:
{
flags |= EventProperty_MouseMove;
}break;
case InputEventKind_Core:
{
switch (event->core.code){
case CoreCode_Animate:
{
flags |= EventProperty_Animate;
}break;
case CoreCode_ClickActivateView:
case CoreCode_ClickDeactivateView:
{
flags |= EventProperty_ViewActivation;
}break;
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case CoreCode_FileExternallyModified:
{
flags |= EventProperty_AnyFile;
}break;
case CoreCode_Startup:
{
flags |= EventProperty_Startup;
}break;
case CoreCode_TryExit:
{
flags |= EventProperty_Exit;
}break;
case CoreCode_NewClipboardContents:
{
flags |= EventProperty_Clipboard;
}break;
}
}break;
}
return(flags);
}
function Input_Event*
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push_input_event(Arena *arena, Input_List *list){
Input_Event_Node *node = push_array_zero(arena, Input_Event_Node, 1);
sll_queue_push(list->first, list->last, node);
list->count += 1;
return(&node->event);
}
function Input_Event*
push_input_event(Arena *arena, Input_List *list, Input_Event *event){
Input_Event_Node *node = push_array(arena, Input_Event_Node, 1);
block_copy_struct(&node->event, event);
sll_queue_push(list->first, list->last, node);
list->count += 1;
return(&node->event);
}
// BOTTOM