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raddbg_views.c
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// Copyright (c) 2024 Epic Games Tools
// Licensed under the MIT license (https://opensource.org/license/mit/)
////////////////////////////////
//~ rjf: Code Views
internal void
rd_code_view_init(RD_CodeViewState *cv)
{
if(cv->initialized == 0)
{
cv->initialized = 1;
cv->preferred_column = 1;
cv->find_text_arena = rd_push_view_arena();
cv->center_cursor = 1;
rd_store_view_loading_info(1, 0, 0);
}
}
internal RD_CodeViewBuildResult
rd_code_view_build(Arena *arena, RD_CodeViewState *cv, RD_CodeViewBuildFlags flags, Rng2F32 rect, String8 text_data, TXT_TextInfo *text_info, DASM_LineArray *dasm_lines, Rng1U64 dasm_vaddr_range, DI_Key dasm_dbgi_key)
{
ProfBeginFunction();
Temp scratch = scratch_begin(&arena, 1);
HS_Scope *hs_scope = hs_scope_open();
TXT_Scope *txt_scope = txt_scope_open();
//////////////////////////////
//- rjf: unpack state
//
UI_ScrollPt2 scroll_pos = rd_view_scroll_pos();
//////////////////////////////
//- rjf: extract invariants
//
FNT_Tag code_font = rd_font_from_slot(RD_FontSlot_Code);
F32 code_font_size = rd_font_size_from_slot(RD_FontSlot_Code);
F32 code_tab_size = fnt_column_size_from_tag_size(code_font, code_font_size)*rd_setting_val_from_code(RD_SettingCode_TabWidth).s32;
FNT_Metrics code_font_metrics = fnt_metrics_from_tag_size(code_font, code_font_size);
F32 code_line_height = ceil_f32(fnt_line_height_from_metrics(&code_font_metrics) * 1.5f);
F32 big_glyph_advance = fnt_dim_from_tag_size_string(code_font, code_font_size, 0, 0, str8_lit("H")).x;
Vec2F32 panel_box_dim = dim_2f32(rect);
F32 scroll_bar_dim = floor_f32(ui_top_font_size()*1.5f);
Vec2F32 code_area_dim = v2f32(panel_box_dim.x - scroll_bar_dim, panel_box_dim.y - scroll_bar_dim);
S64 num_possible_visible_lines = (S64)(code_area_dim.y/code_line_height)+1;
CTRL_Entity *thread = ctrl_entity_from_handle(d_state->ctrl_entity_store, rd_regs()->thread);
CTRL_Entity *process = ctrl_entity_ancestor_from_kind(thread, CTRL_EntityKind_Process);
//////////////////////////////
//- rjf: unpack information about the viewed source file, if any
//
String8 file_path = rd_regs()->file_path;
String8List file_path_possible_overrides = rd_possible_overrides_from_file_path(scratch.arena, file_path);
//////////////////////////////
//- rjf: process commands
//
for(RD_Cmd *cmd = 0; rd_next_cmd(&cmd);)
{
// rjf: mismatched window/panel => skip
if(!rd_handle_match(rd_regs()->view, cmd->regs->view))
{
continue;
}
// rjf: process
RD_CmdKind kind = rd_cmd_kind_from_string(cmd->name);
switch(kind)
{
default: break;
case RD_CmdKind_GoToLine:
{
cv->goto_line_num = cmd->regs->cursor.line;
}break;
case RD_CmdKind_CenterCursor:
{
cv->center_cursor = 1;
}break;
case RD_CmdKind_ContainCursor:
{
cv->contain_cursor = 1;
}break;
case RD_CmdKind_FindTextForward:
{
arena_clear(cv->find_text_arena);
cv->find_text_fwd = push_str8_copy(cv->find_text_arena, cmd->regs->string);
}break;
case RD_CmdKind_FindTextBackward:
{
arena_clear(cv->find_text_arena);
cv->find_text_bwd = push_str8_copy(cv->find_text_arena, cmd->regs->string);
}break;
case RD_CmdKind_ToggleWatchExpressionAtMouse:
{
cv->watch_expr_at_mouse = 1;
}break;
}
}
//////////////////////////////
//- rjf: determine visible line range / count
//
Rng1S64 visible_line_num_range = r1s64(scroll_pos.y.idx + (S64)(scroll_pos.y.off) + 1 - !!(scroll_pos.y.off < 0),
scroll_pos.y.idx + (S64)(scroll_pos.y.off) + 1 + num_possible_visible_lines);
Rng1S64 target_visible_line_num_range = r1s64(scroll_pos.y.idx + 1,
scroll_pos.y.idx + 1 + num_possible_visible_lines);
U64 visible_line_count = 0;
{
visible_line_num_range.min = Clamp(1, visible_line_num_range.min, (S64)text_info->lines_count);
visible_line_num_range.max = Clamp(1, visible_line_num_range.max, (S64)text_info->lines_count);
visible_line_num_range.min = Max(1, visible_line_num_range.min);
visible_line_num_range.max = Max(1, visible_line_num_range.max);
target_visible_line_num_range.min = Clamp(1, target_visible_line_num_range.min, (S64)text_info->lines_count);
target_visible_line_num_range.max = Clamp(1, target_visible_line_num_range.max, (S64)text_info->lines_count);
target_visible_line_num_range.min = Max(1, target_visible_line_num_range.min);
target_visible_line_num_range.max = Max(1, target_visible_line_num_range.max);
visible_line_count = (U64)dim_1s64(visible_line_num_range)+1;
}
//////////////////////////////
//- rjf: calculate scroll bounds
//
S64 line_size_x = 0;
Rng1S64 scroll_idx_rng[Axis2_COUNT] = {0};
{
line_size_x = (text_info->lines_max_size*big_glyph_advance*3)/2;
line_size_x = ClampBot(line_size_x, (S64)big_glyph_advance*120);
line_size_x = ClampBot(line_size_x, (S64)code_area_dim.x);
scroll_idx_rng[Axis2_X] = r1s64(0, line_size_x-(S64)code_area_dim.x);
scroll_idx_rng[Axis2_Y] = r1s64(0, (S64)text_info->lines_count-1);
}
//////////////////////////////
//- rjf: calculate line-range-dependent info
//
F32 line_num_width_px = big_glyph_advance * (log10(visible_line_num_range.max) + 3);
F32 priority_margin_width_px = 0;
F32 catchall_margin_width_px = 0;
if(flags & RD_CodeViewBuildFlag_Margins)
{
priority_margin_width_px = big_glyph_advance*3.5f;
catchall_margin_width_px = big_glyph_advance*3.5f;
}
TXT_LineTokensSlice slice = txt_line_tokens_slice_from_info_data_line_range(scratch.arena, text_info, text_data, visible_line_num_range);
//////////////////////////////
//- rjf: get active search query
//
String8 search_query = {0};
Side search_query_side = Side_Invalid;
B32 search_query_is_active = 0;
{
RD_Window *window = rd_window_from_handle(rd_regs()->window);
RD_CmdKind query_cmd_kind = rd_cmd_kind_from_string(window->query_cmd_name);
if(query_cmd_kind == RD_CmdKind_FindTextForward ||
query_cmd_kind == RD_CmdKind_FindTextBackward)
{
search_query = str8(window->query_view_stack_top->query_buffer, window->query_view_stack_top->query_string_size);
search_query_is_active = 1;
search_query_side = (query_cmd_kind == RD_CmdKind_FindTextForward) ? Side_Max : Side_Min;
}
}
//////////////////////////////
//- rjf: prepare code slice info bundle, for the viewable region of text
//
RD_CodeSliceParams code_slice_params = {0};
{
// rjf: fill basics
code_slice_params.flags = RD_CodeSliceFlag_LineNums|RD_CodeSliceFlag_Clickable;
if(flags & RD_CodeViewBuildFlag_Margins)
{
code_slice_params.flags |= RD_CodeSliceFlag_PriorityMargin|RD_CodeSliceFlag_CatchallMargin;
}
code_slice_params.line_num_range = visible_line_num_range;
code_slice_params.line_text = push_array(scratch.arena, String8, visible_line_count);
code_slice_params.line_ranges = push_array(scratch.arena, Rng1U64, visible_line_count);
code_slice_params.line_tokens = push_array(scratch.arena, TXT_TokenArray, visible_line_count);
code_slice_params.line_bps = push_array(scratch.arena, RD_EntityList, visible_line_count);
code_slice_params.line_ips = push_array(scratch.arena, CTRL_EntityList, visible_line_count);
code_slice_params.line_pins = push_array(scratch.arena, RD_EntityList, visible_line_count);
code_slice_params.line_vaddrs = push_array(scratch.arena, U64, visible_line_count);
code_slice_params.line_infos = push_array(scratch.arena, D_LineList, visible_line_count);
code_slice_params.font = code_font;
code_slice_params.font_size = code_font_size;
code_slice_params.tab_size = code_tab_size;
code_slice_params.line_height_px = code_line_height;
code_slice_params.search_query = search_query;
code_slice_params.priority_margin_width_px = priority_margin_width_px;
code_slice_params.catchall_margin_width_px = catchall_margin_width_px;
code_slice_params.line_num_width_px = line_num_width_px;
code_slice_params.line_text_max_width_px = (F32)line_size_x;
code_slice_params.margin_float_off_px = scroll_pos.x.idx + scroll_pos.x.off;
// rjf: fill text info
{
S64 line_num = visible_line_num_range.min;
U64 line_idx = visible_line_num_range.min-1;
for(U64 visible_line_idx = 0;
visible_line_idx < visible_line_count && line_idx < text_info->lines_count;
visible_line_idx += 1, line_idx += 1, line_num += 1)
{
code_slice_params.line_text[visible_line_idx] = str8_substr(text_data, text_info->lines_ranges[line_idx]);
code_slice_params.line_ranges[visible_line_idx] = text_info->lines_ranges[line_idx];
code_slice_params.line_tokens[visible_line_idx] = slice.line_tokens[visible_line_idx];
}
}
// rjf: find visible breakpoints for source code
if(!dasm_lines) ProfScope("find visible breakpoints for source code")
{
RD_EntityList bps = rd_query_cached_entity_list_with_kind(RD_EntityKind_Breakpoint);
for(RD_EntityNode *n = bps.first; n != 0; n = n->next)
{
RD_Entity *bp = n->entity;
RD_Entity *loc = rd_entity_child_from_kind(bp, RD_EntityKind_Location);
if(visible_line_num_range.min <= loc->text_point.line && loc->text_point.line <= visible_line_num_range.max)
{
for(String8Node *override_n = file_path_possible_overrides.first;
override_n != 0;
override_n = override_n->next)
{
if(path_match_normalized(loc->string, override_n->string))
{
U64 slice_line_idx = (loc->text_point.line-visible_line_num_range.min);
rd_entity_list_push(scratch.arena, &code_slice_params.line_bps[slice_line_idx], bp);
break;
}
}
}
}
}
// rjf: find live threads mapping to source code
if(!dasm_lines) ProfScope("find live threads mapping to this file")
{
CTRL_Entity *selected_thread = ctrl_entity_from_handle(d_state->ctrl_entity_store, rd_regs()->thread);
CTRL_EntityList threads = ctrl_entity_list_from_kind(d_state->ctrl_entity_store, CTRL_EntityKind_Thread);
for(CTRL_EntityNode *thread_n = threads.first; thread_n != 0; thread_n = thread_n->next)
{
CTRL_Entity *thread = thread_n->v;
CTRL_Entity *process = ctrl_entity_ancestor_from_kind(thread, CTRL_EntityKind_Process);
U64 unwind_count = (thread == selected_thread) ? rd_regs()->unwind_count : 0;
U64 inline_depth = (thread == selected_thread) ? rd_regs()->inline_depth : 0;
U64 rip_vaddr = d_query_cached_rip_from_thread_unwind(thread, unwind_count);
U64 last_inst_on_unwound_rip_vaddr = rip_vaddr - !!unwind_count;
CTRL_Entity *module = ctrl_module_from_process_vaddr(process, last_inst_on_unwound_rip_vaddr);
U64 rip_voff = ctrl_voff_from_vaddr(module, last_inst_on_unwound_rip_vaddr);
DI_Key dbgi_key = ctrl_dbgi_key_from_module(module);
D_LineList lines = d_lines_from_dbgi_key_voff(scratch.arena, &dbgi_key, rip_voff);
for(D_LineNode *n = lines.first; n != 0; n = n->next)
{
if(visible_line_num_range.min <= n->v.pt.line && n->v.pt.line <= visible_line_num_range.max)
{
for(String8Node *override_n = file_path_possible_overrides.first;
override_n != 0;
override_n = override_n->next)
{
if(path_match_normalized(n->v.file_path, override_n->string))
{
U64 slice_line_idx = n->v.pt.line-visible_line_num_range.min;
ctrl_entity_list_push(scratch.arena, &code_slice_params.line_ips[slice_line_idx], thread);
break;
}
}
}
}
}
}
// rjf: find visible watch pins for source code
if(!dasm_lines) ProfScope("find visible watch pins for source code")
{
RD_EntityList wps = rd_query_cached_entity_list_with_kind(RD_EntityKind_WatchPin);
for(RD_EntityNode *n = wps.first; n != 0; n = n->next)
{
RD_Entity *wp = n->entity;
RD_Entity *loc = rd_entity_child_from_kind(wp, RD_EntityKind_Location);
if(visible_line_num_range.min <= loc->text_point.line && loc->text_point.line <= visible_line_num_range.max)
{
for(String8Node *override_n = file_path_possible_overrides.first;
override_n != 0;
override_n = override_n->next)
{
if(path_match_normalized(loc->string, override_n->string))
{
U64 slice_line_idx = (loc->text_point.line-visible_line_num_range.min);
rd_entity_list_push(scratch.arena, &code_slice_params.line_pins[slice_line_idx], wp);
break;
}
}
}
}
}
// rjf: find all src -> dasm info
if(!dasm_lines) ProfScope("find all src -> dasm info for source code")
{
String8 file_path = rd_regs()->file_path;
CTRL_Entity *module = ctrl_entity_from_handle(d_state->ctrl_entity_store, rd_regs()->module);
DI_Key dbgi_key = ctrl_dbgi_key_from_module(module);
D_LineListArray lines_array = d_lines_array_from_dbgi_key_file_path_line_range(scratch.arena, dbgi_key, file_path, visible_line_num_range);
if(lines_array.count != 0)
{
MemoryCopy(code_slice_params.line_infos, lines_array.v, sizeof(D_LineList)*lines_array.count);
}
code_slice_params.relevant_dbgi_keys = lines_array.dbgi_keys;
}
// rjf: find live threads mapping to disasm
if(dasm_lines) ProfScope("find live threads mapping to this disassembly")
{
CTRL_Entity *selected_thread = ctrl_entity_from_handle(d_state->ctrl_entity_store, rd_regs()->thread);
CTRL_EntityList threads = ctrl_entity_list_from_kind(d_state->ctrl_entity_store, CTRL_EntityKind_Thread);
for(CTRL_EntityNode *thread_n = threads.first; thread_n != 0; thread_n = thread_n->next)
{
CTRL_Entity *thread = thread_n->v;
U64 unwind_count = (thread == selected_thread) ? rd_regs()->unwind_count : 0;
U64 rip_vaddr = d_query_cached_rip_from_thread_unwind(thread, unwind_count);
if(ctrl_entity_ancestor_from_kind(thread, CTRL_EntityKind_Process) == process && contains_1u64(dasm_vaddr_range, rip_vaddr))
{
U64 rip_off = rip_vaddr - dasm_vaddr_range.min;
S64 line_num = dasm_line_array_idx_from_code_off__linear_scan(dasm_lines, rip_off)+1;
if(contains_1s64(visible_line_num_range, line_num))
{
U64 slice_line_idx = (line_num-visible_line_num_range.min);
ctrl_entity_list_push(scratch.arena, &code_slice_params.line_ips[slice_line_idx], thread);
}
}
}
}
// rjf: find breakpoints mapping to this disasm
if(dasm_lines) ProfScope("find breakpoints mapping to this disassembly")
{
RD_EntityList bps = rd_query_cached_entity_list_with_kind(RD_EntityKind_Breakpoint);
for(RD_EntityNode *n = bps.first; n != 0; n = n->next)
{
RD_Entity *bp = n->entity;
RD_Entity *loc = rd_entity_child_from_kind(bp, RD_EntityKind_Location);
if(loc->flags & RD_EntityFlag_HasVAddr && contains_1u64(dasm_vaddr_range, loc->vaddr))
{
U64 off = loc->vaddr-dasm_vaddr_range.min;
U64 idx = dasm_line_array_idx_from_code_off__linear_scan(dasm_lines, off);
S64 line_num = (S64)(idx+1);
if(contains_1s64(visible_line_num_range, line_num))
{
U64 slice_line_idx = (line_num-visible_line_num_range.min);
rd_entity_list_push(scratch.arena, &code_slice_params.line_bps[slice_line_idx], bp);
}
}
}
}
// rjf: find watch pins mapping to this disasm
if(dasm_lines) ProfScope("find watch pins mapping to this disassembly")
{
RD_EntityList pins = rd_query_cached_entity_list_with_kind(RD_EntityKind_WatchPin);
for(RD_EntityNode *n = pins.first; n != 0; n = n->next)
{
RD_Entity *pin = n->entity;
RD_Entity *loc = rd_entity_child_from_kind(pin, RD_EntityKind_Location);
if(loc->flags & RD_EntityFlag_HasVAddr && contains_1u64(dasm_vaddr_range, loc->vaddr))
{
U64 off = loc->vaddr-dasm_vaddr_range.min;
U64 idx = dasm_line_array_idx_from_code_off__linear_scan(dasm_lines, off);
S64 line_num = (S64)(idx+1);
if(contains_1s64(visible_line_num_range, line_num))
{
U64 slice_line_idx = (line_num-visible_line_num_range.min);
rd_entity_list_push(scratch.arena, &code_slice_params.line_pins[slice_line_idx], pin);
}
}
}
}
// rjf: fill dasm -> src info
if(dasm_lines)
{
CTRL_Entity *module = ctrl_module_from_process_vaddr(process, dasm_vaddr_range.min);
DI_Key dbgi_key = ctrl_dbgi_key_from_module(module);
for(S64 line_num = visible_line_num_range.min; line_num < visible_line_num_range.max; line_num += 1)
{
U64 vaddr = dasm_vaddr_range.min + dasm_line_array_code_off_from_idx(dasm_lines, line_num-1);
U64 voff = ctrl_voff_from_vaddr(module, vaddr);
U64 slice_idx = line_num-visible_line_num_range.min;
code_slice_params.line_vaddrs[slice_idx] = vaddr;
code_slice_params.line_infos[slice_idx] = d_lines_from_dbgi_key_voff(scratch.arena, &dbgi_key, voff);
}
}
// rjf: add dasm dbgi key to relevant dbgis
if(dasm_lines != 0)
{
di_key_list_push(scratch.arena, &code_slice_params.relevant_dbgi_keys, &dasm_dbgi_key);
}
}
//////////////////////////////
//- rjf: build container
//
UI_Box *container_box = &ui_nil_box;
{
ui_set_next_pref_width(ui_px(code_area_dim.x, 1));
ui_set_next_pref_height(ui_px(code_area_dim.y, 1));
ui_set_next_child_layout_axis(Axis2_Y);
container_box = ui_build_box_from_stringf(UI_BoxFlag_Clip|
UI_BoxFlag_Scroll|
UI_BoxFlag_AllowOverflowX|
UI_BoxFlag_AllowOverflowY,
"###code_area");
}
//////////////////////////////
//- rjf: cancelled search query -> center cursor
//
if(!search_query_is_active && cv->drifted_for_search)
{
cv->drifted_for_search = 0;
cv->center_cursor = 1;
}
//////////////////////////////
//- rjf: do searching operations
//
{
//- rjf: find text (forward)
if(cv->find_text_fwd.size != 0)
{
B32 found = 0;
B32 first = 1;
S64 line_num_start = rd_regs()->cursor.line;
S64 line_num_last = (S64)text_info->lines_count;
for(S64 line_num = line_num_start; 1 <= line_num && line_num <= line_num_last; first = 0)
{
// rjf: gather line info
String8 line_string = str8_substr(text_data, text_info->lines_ranges[line_num-1]);
U64 search_start = 0;
if(rd_regs()->cursor.line == line_num && first)
{
search_start = rd_regs()->cursor.column;
}
// rjf: search string
U64 needle_pos = str8_find_needle(line_string, search_start, cv->find_text_fwd, StringMatchFlag_CaseInsensitive);
if(needle_pos < line_string.size)
{
rd_regs()->cursor.line = line_num;
rd_regs()->cursor.column = needle_pos+1;
rd_regs()->mark = rd_regs()->cursor;
found = 1;
break;
}
// rjf: break if circled back around to cursor
else if(line_num == line_num_start && !first)
{
break;
}
// rjf: increment
line_num += 1;
if(line_num > line_num_last)
{
line_num = 1;
}
}
cv->center_cursor = found;
if(found == 0)
{
log_user_errorf("Could not find \"%S\"", cv->find_text_fwd);
}
}
//- rjf: find text (backward)
if(cv->find_text_bwd.size != 0)
{
B32 found = 0;
B32 first = 1;
S64 line_num_start = rd_regs()->cursor.line;
S64 line_num_last = (S64)text_info->lines_count;
for(S64 line_num = line_num_start; 1 <= line_num && line_num <= line_num_last; first = 0)
{
// rjf: gather line info
String8 line_string = str8_substr(text_data, text_info->lines_ranges[line_num-1]);
if(rd_regs()->cursor.line == line_num && first)
{
line_string = str8_prefix(line_string, rd_regs()->cursor.column-1);
}
// rjf: search string
U64 next_needle_pos = line_string.size;
for(U64 needle_pos = 0; needle_pos < line_string.size;)
{
needle_pos = str8_find_needle(line_string, needle_pos, cv->find_text_bwd, StringMatchFlag_CaseInsensitive);
if(needle_pos < line_string.size)
{
next_needle_pos = needle_pos;
needle_pos += 1;
}
}
if(next_needle_pos < line_string.size)
{
rd_regs()->cursor.line = line_num;
rd_regs()->cursor.column = next_needle_pos+1;
rd_regs()->mark = rd_regs()->cursor;
found = 1;
break;
}
// rjf: break if circled back around to cursor line
else if(line_num == line_num_start && !first)
{
break;
}
// rjf: increment
line_num -= 1;
if(line_num == 0)
{
line_num = line_num_last;
}
}
cv->center_cursor = found;
if(found == 0)
{
log_user_errorf("Could not find \"%S\"", cv->find_text_bwd);
}
}
MemoryZeroStruct(&cv->find_text_fwd);
MemoryZeroStruct(&cv->find_text_bwd);
arena_clear(cv->find_text_arena);
}
//////////////////////////////
//- rjf: do goto line
//
if(cv->goto_line_num != 0 && text_info->lines_count != 0)
{
S64 line_num = cv->goto_line_num;
cv->goto_line_num = 0;
line_num = Clamp(1, line_num, text_info->lines_count);
rd_regs()->cursor = rd_regs()->mark = txt_pt(line_num, 1);
cv->center_cursor = !cv->contain_cursor || (line_num < target_visible_line_num_range.min+4 || target_visible_line_num_range.max-4 < line_num);
}
//////////////////////////////
//- rjf: do keyboard interaction
//
B32 snap[Axis2_COUNT] = {0};
UI_Focus(UI_FocusKind_On)
{
if(ui_is_focus_active() && visible_line_num_range.max >= visible_line_num_range.min)
{
snap[Axis2_X] = snap[Axis2_Y] = rd_do_txt_controls(text_info, text_data, ClampBot(num_possible_visible_lines, 10) - 10, &rd_regs()->cursor, &rd_regs()->mark, &cv->preferred_column);
}
}
//////////////////////////////
//- rjf: build container contents
//
UI_Parent(container_box)
{
//- rjf: build fractional space
container_box->view_off.x = container_box->view_off_target.x = scroll_pos.x.idx + scroll_pos.x.off;
container_box->view_off.y = container_box->view_off_target.y = code_line_height*mod_f32(scroll_pos.y.off, 1.f) + code_line_height*(scroll_pos.y.off < 0) - code_line_height*(scroll_pos.y.off == -1.f && scroll_pos.y.idx == 1);
//- rjf: build code slice
RD_CodeSliceSignal sig = {0};
UI_Focus(UI_FocusKind_On)
{
sig = rd_code_slicef(&code_slice_params, &rd_regs()->cursor, &rd_regs()->mark, &cv->preferred_column, "code_slice");
}
//- rjf: press code slice? -> focus panel
if(ui_pressed(sig.base))
{
rd_cmd(RD_CmdKind_FocusPanel);
}
//- rjf: dragging & outside region? -> contain cursor
if(ui_dragging(sig.base) && sig.base.event_flags == 0)
{
if(!contains_2f32(sig.base.box->rect, ui_mouse()))
{
cv->contain_cursor = 1;
}
else
{
snap[Axis2_X] = 1;
}
}
//- rjf: ctrl+pressed? -> go to name
if(ui_pressed(sig.base) && sig.base.event_flags & OS_Modifier_Ctrl)
{
ui_kill_action();
rd_cmd(RD_CmdKind_GoToName, .string = txt_string_from_info_data_txt_rng(text_info, text_data, sig.mouse_expr_rng));
}
//- rjf: watch expr at mouse
if(cv->watch_expr_at_mouse)
{
cv->watch_expr_at_mouse = 0;
rd_cmd(RD_CmdKind_ToggleWatchExpression, .string = txt_string_from_info_data_txt_rng(text_info, text_data, sig.mouse_expr_rng));
}
//- rjf: selected text on single line, no query? -> set search text
if(!txt_pt_match(rd_regs()->cursor, rd_regs()->mark) && rd_regs()->cursor.line == rd_regs()->mark.line && search_query.size == 0)
{
String8 text = txt_string_from_info_data_txt_rng(text_info, text_data, txt_rng(rd_regs()->cursor, rd_regs()->mark));
rd_set_search_string(text);
}
}
//////////////////////////////
//- rjf: apply post-build view snapping rules
//
if(text_info->lines_count != 0)
{
TxtPt cursor = rd_regs()->cursor;
B32 cursor_in_range = (1 <= cursor.line && cursor.line <= text_info->lines_count);
// rjf: contain => snap
if(cv->contain_cursor && text_info->lines_count != 0)
{
cv->contain_cursor = 0;
snap[Axis2_X] = 1;
snap[Axis2_Y] = 1;
}
// rjf: center cursor
if(cv->center_cursor && text_info->lines_count != 0)
{
cv->center_cursor = 0;
if(cursor_in_range)
{
String8 cursor_line = str8_substr(text_data, text_info->lines_ranges[cursor.line-1]);
F32 cursor_advance = fnt_dim_from_tag_size_string(code_font, code_font_size, 0, code_tab_size, str8_prefix(cursor_line, cursor.column-1)).x;
// rjf: scroll x
{
S64 new_idx = (S64)(cursor_advance - code_area_dim.x/2);
new_idx = Clamp(scroll_idx_rng[Axis2_X].min, new_idx, scroll_idx_rng[Axis2_X].max);
ui_scroll_pt_target_idx(&scroll_pos.x, new_idx);
snap[Axis2_X] = 0;
}
// rjf: scroll y
{
S64 new_idx = (cursor.line-1) - num_possible_visible_lines/2 + 2;
new_idx = Clamp(scroll_idx_rng[Axis2_Y].min, new_idx, scroll_idx_rng[Axis2_Y].max);
ui_scroll_pt_target_idx(&scroll_pos.y, new_idx);
snap[Axis2_Y] = 0;
}
}
}
// rjf: snap in X
if(snap[Axis2_X] && cursor_in_range)
{
String8 cursor_line = str8_substr(text_data, text_info->lines_ranges[cursor.line-1]);
S64 cursor_off = (S64)(fnt_dim_from_tag_size_string(code_font, code_font_size, 0, code_tab_size, str8_prefix(cursor_line, cursor.column-1)).x + priority_margin_width_px + catchall_margin_width_px + line_num_width_px);
Rng1S64 visible_pixel_range =
{
scroll_pos.x.idx,
scroll_pos.x.idx + (S64)code_area_dim.x,
};
Rng1S64 cursor_pixel_range =
{
cursor_off - (S64)(big_glyph_advance*4) - (S64)(priority_margin_width_px + catchall_margin_width_px + line_num_width_px),
cursor_off + (S64)(big_glyph_advance*4),
};
S64 min_delta = Min(0, cursor_pixel_range.min - visible_pixel_range.min);
S64 max_delta = Max(0, cursor_pixel_range.max - visible_pixel_range.max);
S64 new_idx = scroll_pos.x.idx+min_delta+max_delta;
new_idx = Clamp(scroll_idx_rng[Axis2_X].min, new_idx, scroll_idx_rng[Axis2_X].max);
ui_scroll_pt_target_idx(&scroll_pos.x, new_idx);
}
// rjf: snap in Y
if(snap[Axis2_Y])
{
Rng1S64 cursor_visibility_range = r1s64(cursor.line-4, cursor.line+4);
cursor_visibility_range.min = ClampBot(0, cursor_visibility_range.min);
cursor_visibility_range.max = ClampBot(0, cursor_visibility_range.max);
S64 min_delta = Min(0, cursor_visibility_range.min-(target_visible_line_num_range.min));
S64 max_delta = Max(0, cursor_visibility_range.max-(target_visible_line_num_range.min+num_possible_visible_lines));
S64 new_idx = scroll_pos.y.idx+min_delta+max_delta;
new_idx = Clamp(0, new_idx, (S64)text_info->lines_count-1);
ui_scroll_pt_target_idx(&scroll_pos.y, new_idx);
}
}
//////////////////////////////
//- rjf: build horizontal scroll bar
//
{
ui_set_next_fixed_x(0);
ui_set_next_fixed_y(code_area_dim.y);
ui_set_next_fixed_width(panel_box_dim.x - scroll_bar_dim);
ui_set_next_fixed_height(scroll_bar_dim);
{
scroll_pos.x = ui_scroll_bar(Axis2_X,
ui_px(scroll_bar_dim, 1.f),
scroll_pos.x,
scroll_idx_rng[Axis2_X],
(S64)code_area_dim.x);
}
}
//////////////////////////////
//- rjf: build vertical scroll bar
//
{
ui_set_next_fixed_x(code_area_dim.x);
ui_set_next_fixed_y(0);
ui_set_next_fixed_width(scroll_bar_dim);
ui_set_next_fixed_height(panel_box_dim.y - scroll_bar_dim);
{
scroll_pos.y = ui_scroll_bar(Axis2_Y,
ui_px(scroll_bar_dim, 1.f),
scroll_pos.y,
scroll_idx_rng[Axis2_Y],
num_possible_visible_lines);
}
}
//////////////////////////////
//- rjf: top-level container interaction (scrolling)
//
if(text_info->lines_count != 0)
{
UI_Signal sig = ui_signal_from_box(container_box);
if(sig.scroll.x != 0)
{
S64 new_idx = scroll_pos.x.idx+sig.scroll.x*big_glyph_advance;
new_idx = clamp_1s64(scroll_idx_rng[Axis2_X], new_idx);
ui_scroll_pt_target_idx(&scroll_pos.x, new_idx);
}
if(sig.scroll.y != 0)
{
S64 new_idx = scroll_pos.y.idx + sig.scroll.y;
new_idx = clamp_1s64(scroll_idx_rng[Axis2_Y], new_idx);
ui_scroll_pt_target_idx(&scroll_pos.y, new_idx);
}
ui_scroll_pt_clamp_idx(&scroll_pos.x, scroll_idx_rng[Axis2_X]);
ui_scroll_pt_clamp_idx(&scroll_pos.y, scroll_idx_rng[Axis2_Y]);
if(ui_mouse_over(sig))
{
for(UI_Event *evt = 0; ui_next_event(&evt);)
{
if(evt->kind == UI_EventKind_Scroll && evt->modifiers & OS_Modifier_Ctrl)
{
ui_eat_event(evt);
if(evt->delta_2f32.y < 0)
{
rd_cmd(RD_CmdKind_IncCodeFontScale);
}
else if(evt->delta_2f32.y > 0)
{
rd_cmd(RD_CmdKind_DecCodeFontScale);
}
}
}
}
}
//////////////////////////////
//- rjf: build result
//
RD_CodeViewBuildResult result = {0};
{
for(DI_KeyNode *n = code_slice_params.relevant_dbgi_keys.first; n != 0; n = n->next)
{
DI_Key copy = di_key_copy(arena, &n->v);
di_key_list_push(arena, &result.dbgi_keys, ©);
}
}
//////////////////////////////
//- rjf: store state
//
rd_store_view_scroll_pos(scroll_pos);
txt_scope_close(txt_scope);
hs_scope_close(hs_scope);
scratch_end(scratch);
ProfEnd();
return result;
}
////////////////////////////////
//~ rjf: Watch Views
//- rjf: index -> column
internal RD_WatchViewColumn *
rd_watch_view_column_from_x(RD_WatchViewState *wv, S64 index)
{
RD_WatchViewColumn *result = wv->first_column;
S64 idx = 0;
for(RD_WatchViewColumn *c = wv->first_column; c != 0; c = c->next, idx += 1)
{
result = c;
if(idx == index)
{
break;
}
}
return result;
}
//- rjf: watch view points <-> table coordinates
internal B32
rd_watch_view_point_match(RD_WatchViewPoint a, RD_WatchViewPoint b)
{
return (a.x == b.x &&
ev_key_match(a.parent_key, b.parent_key) &&
ev_key_match(a.key, b.key));
}
internal RD_WatchViewPoint
rd_watch_view_point_from_tbl(EV_BlockRangeList *block_ranges, Vec2S64 tbl)
{
RD_WatchViewPoint pt = zero_struct;
pt.x = tbl.x;
pt.key = ev_key_from_num(block_ranges, (U64)tbl.y);
pt.parent_key = ev_block_range_from_num(block_ranges, (U64)tbl.y).block->key;
return pt;
}
internal Vec2S64
rd_tbl_from_watch_view_point(EV_BlockRangeList *block_ranges, RD_WatchViewPoint pt)
{
Vec2S64 tbl = {0};
tbl.x = pt.x;
tbl.y = (S64)ev_num_from_key(block_ranges, pt.key);
return tbl;
}
//- rjf: row -> context info
internal RD_WatchViewRowInfo
rd_watch_view_row_info_from_row(EV_Row *row)
{
RD_WatchViewRowInfo info = {0};
{
Temp scratch = scratch_begin(0, 0);
DI_Scope *di_scope = di_scope_open();
// rjf: unpack block/key coordinates
EV_Block *block = row->block;
EV_Key key = row->key;
// rjf: unpack parent block's expression
E_IRTreeAndType irtree = e_irtree_and_type_from_expr(scratch.arena, block->expr);
E_Type *type = e_type_from_key(scratch.arena, irtree.type_key);
// rjf: evaluate row
E_Eval row_eval = e_eval_from_expr(scratch.arena, row->expr);
// rjf: determine collection entity kind, if any
RD_EntityKind collection_entity_kind = RD_EntityKind_Nil;
CTRL_EntityKind collection_ctrl_entity_kind = CTRL_EntityKind_Null;
for EachElement(idx, rd_collection_name_table)
{
if(str8_match(type->name, rd_collection_name_table[idx], 0))
{
collection_entity_kind = rd_collection_entity_kind_table[idx];
collection_ctrl_entity_kind = rd_collection_ctrl_entity_kind_table[idx];
break;
}
}
// rjf: extract frontend entity, if any
RD_Entity *entity = &d_nil_entity;
if(collection_entity_kind != RD_EntityKind_Nil)
{
entity = rd_entity_from_id(key.child_id);
}
// rjf: extract control entity, if any
CTRL_Entity *ctrl_entity = &ctrl_entity_nil;
if(collection_ctrl_entity_kind != CTRL_EntityKind_Null && block->expand_view_rule_info_user_data != 0)
{
U64 block_relative_num = block->expand_view_rule_info->expr_expand_num_from_id(key.child_id, block->expand_view_rule_info_user_data);
RD_CtrlEntityExpandAccel *accel = block->expand_view_rule_info_user_data;
if(1 <= block_relative_num && block_relative_num <= accel->entities.count)
{
ctrl_entity = accel->entities.v[block_relative_num-1];
}
}
else if(row_eval.space.kind == RD_EvalSpaceKind_MetaCtrlEntity)
{
ctrl_entity = rd_ctrl_entity_from_eval_space(row_eval.space);
}
// rjf: extract callstack thread, if any
CTRL_Entity *thread = &ctrl_entity_nil;
for(E_Expr *expr = block->expr, *next = &e_expr_nil; expr != &e_expr_nil; expr = next)
{
next = &e_expr_nil;
switch(expr->kind)
{
default:{}break;
case E_ExprKind_Ref:{next = expr->ref;}break;
case E_ExprKind_Cast:{next = expr->last;}break;
case E_ExprKind_MemberAccess:{next = expr->first;}break;
case E_ExprKind_ArrayIndex:{next = expr->first;}break;
case E_ExprKind_LeafIdent:
{
E_Eval eval = e_eval_from_expr(scratch.arena, expr);
CTRL_Entity *entity = rd_ctrl_entity_from_eval_space(eval.space);
if(entity->kind == CTRL_EntityKind_Thread)
{
thread = entity;
goto done;
}
}break;
}
}
done:;
// rjf: extract callstack row information, if any
U64 unwind_count = 0;
U64 inline_depth = 0;
if(thread != &ctrl_entity_nil)
{
U64 block_relative_num = block->expand_view_rule_info->expr_expand_num_from_id(key.child_id, block->expand_view_rule_info_user_data);
CTRL_Unwind base_unwind = d_query_cached_unwind_from_thread(thread);
CTRL_CallStack rich_unwind = ctrl_call_stack_from_unwind(scratch.arena, di_scope, ctrl_entity_ancestor_from_kind(thread, CTRL_EntityKind_Process), &base_unwind);
U64 frame_num = 1;
for(U64 base_frame_idx = 0; base_frame_idx < rich_unwind.concrete_frame_count; base_frame_idx += 1, frame_num += 1)
{
if(frame_num <= block_relative_num && block_relative_num < frame_num+1+rich_unwind.frames[base_frame_idx].inline_frame_count)
{
unwind_count = base_frame_idx;
inline_depth = block_relative_num - frame_num;
break;
}
frame_num += rich_unwind.frames[base_frame_idx].inline_frame_count;
}
}
// rjf: fill
info.collection_entity_kind = collection_entity_kind;
info.collection_entity = entity;
info.collection_ctrl_entity_kind = collection_ctrl_entity_kind;
info.collection_ctrl_entity = ctrl_entity;
info.callstack_thread = thread;
info.callstack_unwind_index = unwind_count;
info.callstack_inline_depth = inline_depth;
di_scope_close(di_scope);
scratch_end(scratch);
}
return info;
}
//- rjf: watch view flags & row info -> row kind
internal RD_WatchViewRowKind
rd_watch_view_row_kind_from_flags_row_info(RD_WatchViewFlags flags, EV_Row *row, RD_WatchViewRowInfo *info)
{
Temp scratch = scratch_begin(0, 0);
RD_ViewRuleInfo *ui_view_rule_info = rd_view_rule_info_from_string(row->block->expand_view_rule_info->string);
MD_Node *ui_view_rule_params_root = row->block->expand_view_rule_params;
if(ui_view_rule_info->ui == 0 || !(ui_view_rule_info->flags & RD_ViewRuleInfoFlag_CanUseInWatchTable))
{
ui_view_rule_info = &rd_nil_view_rule_info;
ui_view_rule_params_root = &md_nil_node;
}
RD_WatchViewRowKind row_kind = RD_WatchViewRowKind_Normal;
E_Eval row_eval = e_eval_from_expr(scratch.arena, row->expr);
E_TypeKey row_type_key = row_eval.type_key;
E_TypeKind row_type_kind = e_type_kind_from_key(row_type_key);
if(ev_key_match(row->block->key, ev_key_root()))
{
row_kind = RD_WatchViewRowKind_Header;
}
else if(ui_view_rule_info != &rd_nil_view_rule_info && ui_view_rule_info->ui != 0)
{
row_kind = RD_WatchViewRowKind_Canvas;
}
else if(flags & RD_WatchViewFlag_PrettyEntityRows &&
((row_eval.value.u64 == 0 && row_type_kind == E_TypeKind_Struct) ||
info->collection_entity_kind != RD_EntityKind_Nil ||
info->collection_ctrl_entity_kind != CTRL_EntityKind_Null))
{
row_kind = RD_WatchViewRowKind_PrettyEntityControls;
}
scratch_end(scratch);
return row_kind;
}
//- rjf: row/column -> strings