show indentation with arrow

2 files changed, 30 insertions, 2 deletions

diff --git a/imgui/imgui_spectrum.cpp b/imgui/imgui_spectrum.cpp
index 92667e0..30ff713 100644
--- a/imgui/imgui_spectrum.cpp
+++ b/imgui/imgui_spectrum.cpp
@@ -10,11 +10,23 @@ namespace ImGui {
             ImGuiIO& io = ImGui::GetIO();
 			ImFontConfig config;
 			config.MergeMode = true;
+
+			static const ImWchar rr[] =
+			{
+				0x2192, 0x2193, // Basic Latin + Latin Supplement
+				0,
+			};
+
+			ImFontGlyphRangesBuilder builder;
+			ImVector<ImWchar> ranges;
+			builder.AddRanges(io.Fonts->GetGlyphRangesDefault());
+			builder.AddRanges(rr);
+			builder.BuildRanges(&ranges);
 			
 			ImFont* font = io.Fonts->AddFontFromMemoryCompressedTTF(
 				SourceSansProRegular_compressed_data, 
 				SourceSansProRegular_compressed_size, 
-				size, nullptr, nullptr);
+				size, nullptr, ranges.Data);
 
 			IM_ASSERT(font != nullptr);
 			io.FontDefault = font;
diff --git a/src/main.cpp b/src/main.cpp
index abdc170..345657f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -261,7 +261,23 @@ void _ts_create_text_match_rows() {
 		ImGui::Text("#%d", item+1);
 					
 		ImGui::TableNextColumn();
-		ImGui::Text("%.*s", (int)file->word_match_offset, file->line_info);
+		
+		utf8_int32_t iter_ch = 0;
+		utf8_int8_t* iter = file->line_info;
+		size_t whitespace_size = 0;
+		while ((iter = utf8codepoint(iter, &iter_ch)) && iter_ch)
+		{
+			if (iter_ch == ' ') {
+				ImGui::TextColored({0,0,0,0.2f}, "%s", "→");
+				ImGui::SameLine(0.0f, 5.0f);
+				whitespace_size++;
+			}
+			else {
+				break;
+			}
+		}
+
+		ImGui::Text("%.*s", (int)(file->word_match_offset - whitespace_size), file->line_info + whitespace_size);
 		ImGui::SameLine(0.0f, 0.0f);
 		ImGui::TextColored({255,0,0,255}, "%.*s", (int)file->word_match_length, file->line_info + file->word_match_offset); 
 		ImGui::SameLine(0.0f, 0.0f);