/*
4coder_default_hooks.cpp - Sets up the hooks for the default framework.
*/
// TOP
#include "languages/4coder_language_cpp.h"
#include "languages/4coder_language_rust.h"
#include "languages/4coder_language_cs.h"
#include "languages/4coder_language_java.h"
CUSTOM_COMMAND_SIG(set_bindings_choose);
CUSTOM_COMMAND_SIG(set_bindings_default);
CUSTOM_COMMAND_SIG(set_bindings_mac_default);
static Named_Mapping named_maps_values[] = {
{make_lit_string("mac-default") , set_bindings_mac_default },
{make_lit_string("choose") , set_bindings_choose },
{make_lit_string("default") , set_bindings_default },
};
START_HOOK_SIG(default_start){
named_maps = named_maps_values;
named_map_count = ArrayCount(named_maps_values);
default_4coder_initialize(app);
default_4coder_side_by_side_panels(app, files, file_count);
if (global_config.automatically_load_project){
load_project(app);
}
// no meaning for return
return(0);
}
// NOTE(allen|a4.0.9): All command calls can now go through this hook
// If this hook is not implemented a default behavior of calling the
// command is used. It is important to note that paste_next does not
// work without this hook.
// NOTE(allen|a4.0.10): As of this version the word_complete command
// also relies on this particular command caller hook.
COMMAND_CALLER_HOOK(default_command_caller){
View_Summary view = get_active_view(app, AccessAll);
Managed_Scope scope = view_get_managed_scope(app, view.view_id);
managed_variable_set(app, scope, view_next_rewrite_loc, 0);
if (fcoder_mode == FCoderMode_NotepadLike){
managed_variable_set(app, scope, view_snap_mark_to_cursor, true);
}
exec_command(app, cmd);
uint64_t next_rewrite = 0;
managed_variable_get(app, scope, view_next_rewrite_loc, &next_rewrite);
managed_variable_set(app, scope, view_rewrite_loc, next_rewrite);
if (fcoder_mode == FCoderMode_NotepadLike){
uint64_t val = 0;
if (managed_variable_get(app, scope, view_snap_mark_to_cursor, &val)){
if (val != 0){
view = get_view(app, view.view_id, AccessAll);
view_set_mark(app, &view, seek_pos(view.cursor.pos));
}
}
}
return(0);
}
struct Highlight_Record{
int32_t first;
int32_t one_past_last;
int_color color;
};
static void
sort_highlight_record(Highlight_Record *records, int32_t first, int32_t one_past_last){
if (first + 1 < one_past_last){
int32_t pivot_index = one_past_last - 1;
int_color pivot_color = records[pivot_index].color;
int32_t j = first;
for (int32_t i = first; i < pivot_index; i += 1){
int_color color = records[i].color;
if (color < pivot_color){
Swap(Highlight_Record, records[i], records[j]);
j += 1;
}
}
Swap(Highlight_Record, records[pivot_index], records[j]);
pivot_index = j;
sort_highlight_record(records, first, pivot_index);
sort_highlight_record(records, pivot_index + 1, one_past_last);
}
}
static Range_Array
get_enclosure_ranges(Application_Links *app, Partition *part,
Buffer_Summary *buffer, int32_t pos, uint32_t flags){
Range_Array array = {0};
array.ranges = push_array(part, Range, 0);
for (;;){
Range range = {0};
if (find_scope_range(app, buffer, pos, &range, flags)){
Range *r = push_array(part, Range, 1);
*r = range;
pos = range.first;
}
else{
break;
}
}
array.count = (int32_t)(push_array(part, Range, 0) - array.ranges);
return(array);
}
static void
mark_enclosures(Application_Links *app, Partition *scratch, Managed_Scope render_scope,
Buffer_Summary *buffer, int32_t pos, uint32_t flags,
Marker_Visual_Type type,
int_color *back_colors, int_color *fore_colors, int32_t color_count){
Temp_Memory temp = begin_temp_memory(scratch);
Range_Array ranges = get_enclosure_ranges(app, scratch,
buffer, pos, flags);
if (ranges.count > 0){
int32_t marker_count = ranges.count*2;
Marker *markers = push_array(scratch, Marker, marker_count);
Marker *marker = markers;
Range *range = ranges.ranges;
for (int32_t i = 0;
i < ranges.count;
i += 1, range += 1, marker += 2){
marker[0].pos = range->first;
marker[1].pos = range->one_past_last - 1;
}
Managed_Object o = alloc_buffer_markers_on_buffer(app, buffer->buffer_id, marker_count, &render_scope);
managed_object_store_data(app, o, 0, marker_count, markers);
Marker_Visual_Take_Rule take_rule = {0};
take_rule.take_count_per_step = 2;
take_rule.step_stride_in_marker_count = 8;
int32_t first_color_index = (ranges.count - 1)%color_count;
for (int32_t i = 0, color_index = first_color_index;
i < color_count;
i += 1){
Marker_Visual visual = create_marker_visual(app, o);
int_color back = SymbolicColor_Transparent;
int_color fore = SymbolicColor_Default;
if (back_colors != 0){
back = back_colors[color_index];
}
if (fore_colors != 0){
fore = fore_colors[color_index];
}
marker_visual_set_effect(app, visual, type, back, fore, 0);
take_rule.first_index = i*2;
marker_visual_set_take_rule(app, visual, take_rule);
color_index = color_index - 1;
if (color_index < 0){
color_index += color_count;
}
}
}
end_temp_memory(temp);
}
RENDER_CALLER_SIG(default_render_caller){
View_Summary view = get_view(app, view_id, AccessAll);
Buffer_Summary buffer = get_buffer(app, view.buffer_id, AccessAll);
View_Summary active_view = get_active_view(app, AccessAll);
bool32 is_active_view = (active_view.view_id == view_id);
static Managed_Scope render_scope = 0;
if (render_scope == 0){
render_scope = create_user_managed_scope(app);
}
Partition *scratch = &global_part;
// NOTE(allen): Scan for TODOs and NOTEs
{
Theme_Color colors[2];
colors[0].tag = Stag_Text_Cycle_2;
colors[1].tag = Stag_Text_Cycle_1;
get_theme_colors(app, colors, 2);
Temp_Memory temp = begin_temp_memory(scratch);
int32_t text_size = on_screen_range.one_past_last - on_screen_range.first;
char *text = push_array(scratch, char, text_size);
buffer_read_range(app, &buffer, on_screen_range.first, on_screen_range.one_past_last, text);
Highlight_Record *records = push_array(scratch, Highlight_Record, 0);
String tail = make_string(text, text_size);
for (int32_t i = 0; i < text_size; tail.str += 1, tail.size -= 1, i += 1){
if (match_part(tail, make_lit_string("NOTE"))){
Highlight_Record *record = push_array(scratch, Highlight_Record, 1);
record->first = i + on_screen_range.first;
record->one_past_last = record->first + 4;
record->color = colors[0].color;
tail.str += 3;
tail.size -= 3;
i += 3;
}
else if (match_part(tail, make_lit_string("TODO"))){
Highlight_Record *record = push_array(scratch, Highlight_Record, 1);
record->first = i + on_screen_range.first;
record->one_past_last = record->first + 4;
record->color = colors[1].color;
tail.str += 3;
tail.size -= 3;
i += 3;
}
}
int32_t record_count = (int32_t)(push_array(scratch, Highlight_Record, 0) - records);
push_array(scratch, Highlight_Record, 1);
if (record_count > 0){
sort_highlight_record(records, 0, record_count);
Temp_Memory marker_temp = begin_temp_memory(scratch);
Marker *markers = push_array(scratch, Marker, 0);
int_color current_color = records[0].color;
{
Marker *marker = push_array(scratch, Marker, 2);
marker[0].pos = records[0].first;
marker[1].pos = records[0].one_past_last;
}
for (int32_t i = 1; i <= record_count; i += 1){
bool32 do_emit = i == record_count || (records[i].color != current_color);
if (do_emit){
int32_t marker_count = (int32_t)(push_array(scratch, Marker, 0) - markers);
Managed_Object o = alloc_buffer_markers_on_buffer(app, buffer.buffer_id, marker_count, &render_scope);
managed_object_store_data(app, o, 0, marker_count, markers);
Marker_Visual v = create_marker_visual(app, o);
marker_visual_set_effect(app, v,
VisualType_CharacterHighlightRanges,
SymbolicColor_Transparent, current_color, 0);
marker_visual_set_priority(app, v, VisualPriority_Lowest);
end_temp_memory(marker_temp);
current_color = records[i].color;
}
Marker *marker = push_array(scratch, Marker, 2);
marker[0].pos = records[i].first;
marker[1].pos = records[i].one_past_last;
}
}
end_temp_memory(temp);
}
// NOTE(allen): Cursor and mark
Managed_Object cursor_and_mark = alloc_buffer_markers_on_buffer(app, buffer.buffer_id, 2, &render_scope);
Marker cm_markers[2] = {0};
cm_markers[0].pos = view.cursor.pos;
cm_markers[1].pos = view.mark.pos;
managed_object_store_data(app, cursor_and_mark, 0, 2, cm_markers);
if (!cursor_is_hidden){
switch (fcoder_mode){
case FCoderMode_Original:
{
Theme_Color colors[2] = {0};
colors[0].tag = Stag_Cursor;
colors[1].tag = Stag_Mark;
get_theme_colors(app, colors, 2);
uint32_t cursor_color = colors[0].color;
uint32_t mark_color = colors[1].color;
Marker_Visual_Take_Rule take_rule = {0};
take_rule.first_index = 0;
take_rule.take_count_per_step = 1;
take_rule.step_stride_in_marker_count = 1;
take_rule.maximum_number_of_markers = 1;
Marker_Visual visual = create_marker_visual(app, cursor_and_mark);
Marker_Visual_Type type = is_active_view?VisualType_CharacterBlocks:VisualType_CharacterWireFrames;
marker_visual_set_effect(app, visual,
type, cursor_color, SymbolicColorFromPalette(Stag_At_Cursor), 0);
marker_visual_set_take_rule(app, visual, take_rule);
marker_visual_set_priority(app, visual, VisualPriority_Highest);
visual = create_marker_visual(app, cursor_and_mark);
marker_visual_set_effect(app, visual,
VisualType_CharacterWireFrames, mark_color, 0, 0);
take_rule.first_index = 1;
marker_visual_set_take_rule(app, visual, take_rule);
marker_visual_set_priority(app, visual, VisualPriority_Highest);
}break;
case FCoderMode_NotepadLike:
{
Theme_Color colors[2] = {0};
colors[0].tag = Stag_Cursor;
colors[1].tag = Stag_Highlight;
get_theme_colors(app, colors, 2);
uint32_t cursor_color = colors[0].color;
uint32_t highlight_color = colors[1].color;
Marker_Visual_Take_Rule take_rule = {0};
take_rule.first_index = 0;
take_rule.take_count_per_step = 1;
take_rule.step_stride_in_marker_count = 1;
take_rule.maximum_number_of_markers = 1;
Marker_Visual visual = create_marker_visual(app, cursor_and_mark);
marker_visual_set_effect(app, visual, VisualType_CharacterIBars, cursor_color, 0, 0);
marker_visual_set_take_rule(app, visual, take_rule);
marker_visual_set_priority(app, visual, VisualPriority_Highest);
if (view.cursor.pos != view.mark.pos){
visual = create_marker_visual(app, cursor_and_mark);
marker_visual_set_effect(app, visual, VisualType_CharacterHighlightRanges, highlight_color, SymbolicColorFromPalette(Stag_At_Highlight), 0);
take_rule.maximum_number_of_markers = 2;
marker_visual_set_take_rule(app, visual, take_rule);
marker_visual_set_priority(app, visual, VisualPriority_Highest);
}
}break;
}
}
// NOTE(allen): Line highlight setup
if (highlight_line_at_cursor){
Theme_Color color = {0};
color.tag = Stag_Highlight_Cursor_Line;
get_theme_colors(app, &color, 1);
uint32_t line_color = color.color;
Marker_Visual visual = create_marker_visual(app, cursor_and_mark);
marker_visual_set_effect(app, visual, VisualType_LineHighlights,
line_color, 0, 0);
Marker_Visual_Take_Rule take_rule = {0};
take_rule.first_index = 0;
take_rule.take_count_per_step = 1;
take_rule.step_stride_in_marker_count = 1;
take_rule.maximum_number_of_markers = 1;
marker_visual_set_take_rule(app, visual, take_rule);
marker_visual_set_priority(app, visual, VisualPriority_Highest);
}
// NOTE(allen): Token highlight setup
bool32 do_token_highlight = false;
if (do_token_highlight){
Theme_Color color = {0};
color.tag = Stag_Cursor;
get_theme_colors(app, &color, 1);
uint32_t token_color = (0x50 << 24) | (color.color&0xFFFFFF);
uint32_t token_flags = BoundaryToken|BoundaryWhitespace;
int32_t pos0 = view.cursor.pos;
int32_t pos1 = buffer_boundary_seek(app, &buffer, pos0, DirLeft , token_flags);
int32_t pos2 = buffer_boundary_seek(app, &buffer, pos1, DirRight, token_flags);
Managed_Object token_highlight = alloc_buffer_markers_on_buffer(app, buffer.buffer_id, 2, &render_scope);
Marker range_markers[2] = {0};
range_markers[0].pos = pos1;
range_markers[1].pos = pos2;
managed_object_store_data(app, token_highlight, 0, 2, range_markers);
Marker_Visual visual = create_marker_visual(app, token_highlight);
marker_visual_set_effect(app, visual,
VisualType_CharacterHighlightRanges,
token_color, SymbolicColorFromPalette(Stag_At_Highlight), 0);
}
// NOTE(allen): Matching enclosure highlight setup
static const int32_t color_count = 4;
if (do_matching_enclosure_highlight){
Theme_Color theme_colors[color_count];
int_color colors[color_count];
for (int32_t i = 0; i < 4; i += 1){
theme_colors[i].tag = Stag_Back_Cycle_1 + i;
}
get_theme_colors(app, theme_colors, color_count);
for (int32_t i = 0; i < 4; i += 1){
colors[i] = theme_colors[i].color;
}
mark_enclosures(app, scratch, render_scope,
&buffer, view.cursor.pos, FindScope_Brace,
VisualType_LineHighlightRanges,
colors, 0, color_count);
}
if (do_matching_paren_highlight){
Theme_Color theme_colors[color_count];
int_color colors[color_count];
for (int32_t i = 0; i < 4; i += 1){
theme_colors[i].tag = Stag_Text_Cycle_1 + i;
}
get_theme_colors(app, theme_colors, color_count);
for (int32_t i = 0; i < 4; i += 1){
colors[i] = theme_colors[i].color;
}
mark_enclosures(app, scratch, render_scope,
&buffer, view.cursor.pos, FindScope_Paren,
VisualType_CharacterBlocks,
0, colors, color_count);
}
do_core_render(app);
managed_scope_clear_self_all_dependent_scopes(app, render_scope);
}
HOOK_SIG(default_exit){
// If this returns zero it cancels the exit.
if (allow_immediate_close_without_checking_for_changes){
return(1);
}
bool32 has_unsaved_changes = false;
for (Buffer_Summary buffer = get_buffer_first(app, AccessAll);
buffer.exists;
get_buffer_next(app, &buffer, AccessAll)){
if (buffer.dirty == DirtyState_UnsavedChanges){
has_unsaved_changes = true;
break;
}
}
if (has_unsaved_changes){
View_Summary view = get_active_view(app, AccessAll);
do_gui_sure_to_close_4coder(app, &view);
return(0);
}
return(1);
}
HOOK_SIG(default_view_adjust){
int32_t count = 0;
int32_t new_wrap_width = 0;
for (View_Summary view = get_view_first(app, AccessAll);
view.exists;
get_view_next(app, &view, AccessAll)){
new_wrap_width += view.view_region.x1 - view.view_region.x0;
++count;
}
new_wrap_width /= count;
new_wrap_width = (int32_t)(new_wrap_width * .9f);
int32_t new_min_base_width = (int32_t)(new_wrap_width * .77f);
if (global_config.automatically_adjust_wrapping){
adjust_all_buffer_wrap_widths(app, new_wrap_width, new_min_base_width);
global_config.default_wrap_width = new_wrap_width;
global_config.default_min_base_width = new_min_base_width;
}
// no meaning for return
return(0);
}
BUFFER_NAME_RESOLVER_SIG(default_buffer_name_resolution){
if (conflict_count > 1){
// List of unresolved conflicts
Partition *part = &global_part;
Temp_Memory temp = begin_temp_memory(part);
int32_t *unresolved = push_array(part, int32_t, conflict_count);
if (unresolved == 0) return;
int32_t unresolved_count = conflict_count;
for (int32_t i = 0; i < conflict_count; ++i){
unresolved[i] = i;
}
// Resolution Loop
int32_t x = 0;
for (;;){
// Resolution Pass
++x;
for (int32_t i = 0; i < unresolved_count; ++i){
int32_t conflict_index = unresolved[i];
Buffer_Name_Conflict_Entry *conflict = &conflicts[conflict_index];
int32_t len = conflict->base_name_len;
if (len < 0){
len = 0;
}
if (len > conflict->unique_name_capacity){
len = conflict->unique_name_capacity;
}
conflict->unique_name_len_in_out = len;
memcpy(conflict->unique_name_in_out, conflict->base_name, len);
if (conflict->file_name != 0){
String s_file_name = make_string(conflict->file_name, conflict->file_name_len);
s_file_name = path_of_directory(s_file_name);
s_file_name.size -= 1;
char *end = s_file_name.str + s_file_name.size;
for (int32_t j = 0; j < x; ++j){
s_file_name = path_of_directory(s_file_name);
if (j + 1 < x){
s_file_name.size -= 1;
}
if (s_file_name.size <= 0){
s_file_name.size = 0;
break;
}
}
char *start = s_file_name.str + s_file_name.size;
String uniqueifier = make_string(start, (int32_t)(end - start));
String builder = make_string_cap(conflict->unique_name_in_out,
conflict->unique_name_len_in_out,
conflict->unique_name_capacity);
append(&builder, " <");
append(&builder, uniqueifier);
append(&builder, ">");
conflict->unique_name_len_in_out = builder.size;
}
}
// Conflict Check Pass
bool32 has_conflicts = false;
for (int32_t i = 0; i < unresolved_count; ++i){
int32_t conflict_index = unresolved[i];
Buffer_Name_Conflict_Entry *conflict = &conflicts[conflict_index];
String conflict_name = make_string(conflict->unique_name_in_out,
conflict->unique_name_len_in_out);
bool32 hit_conflict = false;
if (conflict->file_name != 0){
for (int32_t j = 0; j < unresolved_count; ++j){
if (i == j) continue;
int32_t conflict_j_index = unresolved[j];
Buffer_Name_Conflict_Entry *conflict_j = &conflicts[conflict_j_index];
if (match(conflict_name, make_string(conflict_j->unique_name_in_out,
conflict_j->unique_name_len_in_out))){
hit_conflict = true;
break;
}
}
}
if (hit_conflict){
has_conflicts = true;
}
else{
--unresolved_count;
unresolved[i] = unresolved[unresolved_count];
--i;
}
}
if (!has_conflicts){
break;
}
}
end_temp_memory(temp);
}
}
OPEN_FILE_HOOK_SIG(default_file_settings){
// NOTE(allen|a4.0.8): The get_parameter_buffer was eliminated
// and instead the buffer is passed as an explicit parameter through
// the function call. That is where buffer_id comes from here.
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
Assert(buffer.exists);
bool32 treat_as_code = false;
bool32 treat_as_todo = false;
bool32 lex_without_strings = false;
CString_Array extensions = get_code_extensions(&global_config.code_exts);
Parse_Context_ID parse_context_id = 0;
if (buffer.file_name != 0 && buffer.size < (16 << 20)){
String name = make_string(buffer.file_name, buffer.file_name_len);
String ext = file_extension(name);
for (int32_t i = 0; i < extensions.count; ++i){
if (match(ext, extensions.strings[i])){
treat_as_code = true;
if (match(ext, "cs")){
if (parse_context_language_cs == 0){
init_language_cs(app);
}
parse_context_id = parse_context_language_cs;
}
if (match(ext, "java")){
if (parse_context_language_java == 0){
init_language_java(app);
}
parse_context_id = parse_context_language_java;
}
if (match(ext, "rs")){
if (parse_context_language_rust == 0){
init_language_rust(app);
}
parse_context_id = parse_context_language_rust;
lex_without_strings = true;
}
if (match(ext, "cpp") || match(ext, "h") || match(ext, "c") || match(ext, "hpp") || match(ext, "cc")){
if (parse_context_language_cpp == 0){
init_language_cpp(app);
}
parse_context_id = parse_context_language_cpp;
}
// TODO(NAME): Real GLSL highlighting
if (match(ext, "glsl")){
if (parse_context_language_cpp == 0){
init_language_cpp(app);
}
parse_context_id = parse_context_language_cpp;
}
// TODO(NAME): Real Objective-C highlighting
if (match(ext, "m")){
if (parse_context_language_cpp == 0){
init_language_cpp(app);
}
parse_context_id = parse_context_language_cpp;
}
break;
}
}
if (!treat_as_code){
treat_as_todo = match_insensitive(front_of_directory(name), "todo.txt");
}
}
int32_t map_id = (treat_as_code)?((int32_t)default_code_map):((int32_t)mapid_file);
int32_t map_id_query = 0;
buffer_set_setting(app, &buffer, BufferSetting_MapID, default_lister_ui_map);
buffer_get_setting(app, &buffer, BufferSetting_MapID, &map_id_query);
Assert(map_id_query == default_lister_ui_map);
buffer_set_setting(app, &buffer, BufferSetting_WrapPosition, global_config.default_wrap_width);
buffer_set_setting(app, &buffer, BufferSetting_MinimumBaseWrapPosition, global_config.default_min_base_width);
buffer_set_setting(app, &buffer, BufferSetting_MapID, map_id);
buffer_get_setting(app, &buffer, BufferSetting_MapID, &map_id_query);
Assert(map_id_query == map_id);
buffer_set_setting(app, &buffer, BufferSetting_ParserContext, parse_context_id);
// NOTE(allen): Decide buffer settings
bool32 wrap_lines = true;
bool32 use_virtual_whitespace = false;
bool32 use_lexer = false;
if (treat_as_todo){
lex_without_strings = true;
wrap_lines = true;
use_virtual_whitespace = true;
use_lexer = true;
}
else if (treat_as_code){
wrap_lines = global_config.enable_code_wrapping;
use_virtual_whitespace = global_config.enable_virtual_whitespace;
use_lexer = true;
}
if (match(make_string(buffer.buffer_name, buffer.buffer_name_len), "*compilation*")){
wrap_lines = false;
}
//if (buffer.size >= (192 << 10)){
if (buffer.size >= (128 << 10)){
wrap_lines = false;
use_virtual_whitespace = false;
}
// NOTE(allen|a4.0.12): There is a little bit of grossness going on here.
// If we set BufferSetting_Lex to true, it will launch a lexing job.
// If a lexing job is active when we set BufferSetting_VirtualWhitespace, the call can fail.
// Unfortunantely without tokens virtual whitespace doesn't really make sense.
// So for now I have it automatically turning on lexing when virtual whitespace is turned on.
// Cleaning some of that up is a goal for future versions.
if (lex_without_strings){
buffer_set_setting(app, &buffer, BufferSetting_LexWithoutStrings, true);
}
if (wrap_lines){
buffer_set_setting(app, &buffer, BufferSetting_WrapLine, true);
}
if (use_virtual_whitespace){
buffer_set_setting(app, &buffer, BufferSetting_VirtualWhitespace, true);
}
if (use_lexer){
buffer_set_setting(app, &buffer, BufferSetting_Lex, true);
}
// no meaning for return
return(0);
}
OPEN_FILE_HOOK_SIG(default_new_file){
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessOpen);
char str[] = "/*\nNew File\n*/\n\n\n";
buffer_replace_range(app, &buffer, 0, 0, str, sizeof(str)-1);
// no meaning for return
return(0);
}
OPEN_FILE_HOOK_SIG(default_file_save){
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
Assert(buffer.exists);
int32_t is_virtual = 0;
if (global_config.automatically_indent_text_on_save &&
buffer_get_setting(app, &buffer, BufferSetting_VirtualWhitespace, &is_virtual)){
if (is_virtual){
buffer_auto_indent(app, &global_part, &buffer, 0, buffer.size, DEF_TAB_WIDTH, DEFAULT_INDENT_FLAGS | AutoIndent_FullTokens);
}
}
// no meaning for return
return(0);
}
OPEN_FILE_HOOK_SIG(default_end_file){
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
Assert(buffer.exists);
char space[1024];
String str = make_fixed_width_string(space);
append(&str, "Ending file: ");
append(&str, make_string(buffer.buffer_name, buffer.buffer_name_len));
append(&str, "\n");
print_message(app, str.str, str.size);
// no meaning for return
return(0);
}
// NOTE(allen|a4.0.9): The input filter allows you to modify the input
// to a frame before 4coder starts processing it at all.
//
// Right now it only has access to the mouse state, but it will be
// extended to have access to the key presses soon.
INPUT_FILTER_SIG(default_suppress_mouse_filter){
if (suppressing_mouse){
*mouse = null_mouse_state;
mouse->x = -100;
mouse->y = -100;
}
}
// NOTE(allen|a4): scroll rule information
//
// The parameters:
// target_x, target_y
// This is where the view would like to be for the purpose of
// following the cursor, doing mouse wheel work, etc.
//
// scroll_x, scroll_y
// These are pointers to where the scrolling actually is. If you bind
// the scroll rule it is you have to update these in some way to move
// the actual location of the scrolling.
//
// view_id
// This corresponds to which view is computing it's new scrolling position.
// This id DOES correspond to the views that View_Summary contains.
// This will always be between 1 and 16 (0 is a null id).
// See below for an example of having state that carries across scroll udpates.
//
// is_new_target
// If the target of the view is different from the last target in either x or y
// this is true, otherwise it is false.
//
// The return:
// Should be true if and only if scroll_x or scroll_y are changed.
//
// Don't try to use the app pointer in a scroll rule, you're asking for trouble.
//
// If you don't bind scroll_rule, nothing bad will happen, yo will get default
// 4coder scrolling behavior.
//
struct Scroll_Velocity{
float x, y;
};
Scroll_Velocity scroll_velocity_[16] = {0};
Scroll_Velocity *scroll_velocity = scroll_velocity_ - 1;
static int32_t
smooth_camera_step(float target, float *current, float *vel, float S, float T){
int32_t result = 0;
float curr = *current;
float v = *vel;
if (curr != target){
if (curr > target - .1f && curr < target + .1f){
curr = target;
v = 1.f;
}
else{
float L = curr + T*(target - curr);
int32_t sign = (target > curr) - (target < curr);
float V = curr + sign*v;
if (sign > 0) curr = (L<V)?(L):(V);
else curr = (L>V)?(L):(V);
if (curr == V){
v *= S;
}
}
*current = curr;
*vel = v;
result = 1;
}
return(result);
}
SCROLL_RULE_SIG(smooth_scroll_rule){
Scroll_Velocity *velocity = scroll_velocity + view_id;
int32_t result = 0;
if (velocity->x == 0.f){
velocity->x = 1.f;
velocity->y = 1.f;
}
if (smooth_camera_step(target_y, scroll_y, &velocity->y, 80.f, 1.f/2.f)){
result = 1;
}
if (smooth_camera_step(target_x, scroll_x, &velocity->x, 80.f, 1.f/2.f)){
result = 1;
}
return(result);
}
static void
set_all_default_hooks(Bind_Helper *context){
set_hook(context, hook_exit, default_exit);
set_hook(context, hook_view_size_change, default_view_adjust);
set_start_hook(context, default_start);
set_open_file_hook(context, default_file_settings);
set_new_file_hook(context, default_new_file);
set_save_file_hook(context, default_file_save);
set_end_file_hook(context, end_file_close_jump_list);
set_command_caller(context, default_command_caller);
set_render_caller(context, default_render_caller);
set_input_filter(context, default_suppress_mouse_filter);
set_scroll_rule(context, smooth_scroll_rule);
set_buffer_name_resolver(context, default_buffer_name_resolution);
}
// BOTTOM