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rearrange GUI.
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@wutipong
wutipong committed Jan 20, 2024
1 parent 082f23d commit 57b5acc
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Showing 3 changed files with 102 additions and 58 deletions.
1 change: 1 addition & 0 deletions context.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ struct Context {
bool debugCaret{true};
bool debugAscend{true};
bool debugDescend{true};
bool showTextEditor{true};

std::string fontPath{std::filesystem::absolute("fonts").string()};
};
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149 changes: 91 additions & 58 deletions main_scene.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3,9 +3,10 @@
#include "colors.hpp"
#include "text_renderer.hpp"
#include <algorithm>
#include <array>
#include <filesystem>
#include <imgui.h>

#include <imgui_internal.h>

namespace {
constexpr ImVec4 SDLColorToImVec4(const SDL_Color &color) {
Expand Down Expand Up @@ -35,6 +36,8 @@ bool MainScene::Init(Context &context) {
OnDirectorySelected(context, context.fontPath);
dirChooser.SetPwd(context.fontPath);

std::copy(std::cbegin(exampleText), std::cend(exampleText), buffer.begin());

return true;
}

Expand Down Expand Up @@ -79,24 +82,60 @@ void MainScene::Cleanup(Context &context) { Font::CleanUp(); }

void MainScene::DoUI(Context &context) {
int newSelected = selectedFontIndex;
if (ImGui::BeginMainMenuBar()) {

if (ImGui::Begin("Menu")) {
if (ImGui::CollapsingHeader("Font Directory")) {
ImGui::Text(context.fontPath.c_str());
if (ImGui::Button("Browse")) {
if (ImGui::BeginMenu("File##menu")) {
if (ImGui::MenuItem("Change font directory##file-menu")) {
dirChooser.Open();
}
if (ImGui::Button("Re-scan")) {

if (ImGui::MenuItem("Re-scan font directory##file-menu")) {
fontPaths = ListFontFiles(context.fontPath);
}

ImGui::Separator();

if(ImGui::MenuItem("Exit", "Alt+F4")) {
SDL_Event ev{};
ev.quit.type = SDL_QUIT;
ev.quit.timestamp = SDL_GetTicks();

SDL_PushEvent(&ev);
}

ImGui::EndMenu();
}

if (ImGui::BeginMenu("View##menu")) {
ImGui::MenuItem("Text editor##view-menu", "", &context.showTextEditor);
ImGui::MenuItem("Debug##view-menu", "", &context.debug);

ImGui::EndMenu();
}

ImGui::EndMainMenuBar();
}

if (ImGui::BeginViewportSideBar(
"status bar", nullptr, ImGuiDir_Down, ImGui::GetFrameHeight(),
ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoSavedSettings |
ImGuiWindowFlags_MenuBar)) {
if (ImGui::BeginMenuBar()) {
ImGui::LabelText("Font Directory", context.fontPath.c_str());
ImGui::EndMenuBar();
}
}
ImGui::End();

if (ImGui::BeginViewportSideBar("toolbar", nullptr, ImGuiDir_Right, 400.0f,
ImGuiWindowFlags_NoSavedSettings)) {

if (ImGui::CollapsingHeader("Font", ImGuiTreeNodeFlags_DefaultOpen)) {
auto currentFile = selectedFontIndex == -1
? "<None>"
: fontPaths[selectedFontIndex].filename().string();

if (ImGui::BeginCombo("Font File", currentFile.c_str())) {
if (ImGui::BeginCombo("Font file", currentFile.c_str())) {
for (int i = 0; i < fontPaths.size(); i++) {
auto isSelected = i == selectedFontIndex;
if (isSelected) {
Expand All @@ -112,73 +151,67 @@ void MainScene::DoUI(Context &context) {
ImGui::EndCombo();
}

auto familyName = font.GetFamilyName();
auto subFamily = font.GetSubFamilyName();

ImGui::InputText("Family Name", familyName.data(), familyName.size(),
ImGuiInputTextFlags_ReadOnly);

ImGui::InputText("Sub Family Name", subFamily.data(), subFamily.size(),
ImGuiInputTextFlags_ReadOnly);
ImGui::LabelText("Family name", font.GetFamilyName().c_str());
ImGui::LabelText("Sub-family name", font.GetSubFamilyName().c_str());
}

if (ImGui::CollapsingHeader("Parameters", ImGuiTreeNodeFlags_DefaultOpen)) {
ImGui::SliderInt("Font Size", &fontSize, 0, 128);
if (ImGui::CollapsingHeader("Font Metrics", ImGuiTreeNodeFlags_None)) {
auto ascend = font.Ascend();
auto descend = font.Descend();
auto lineGap = font.LineGap();
auto lineHeight = font.LineHeight();

ImGui::InputFloat("Ascend", &ascend, ImGuiInputTextFlags_ReadOnly);
ImGui::InputFloat("Descend", &descend, ImGuiInputTextFlags_ReadOnly);
ImGui::InputFloat("Line Gap", &lineGap, ImGuiInputTextFlags_ReadOnly);
ImGui::InputFloat("Line Height", &lineHeight,
ImGuiInputTextFlags_ReadOnly);
}
ImGui::Checkbox("Shape Text", &isShape);

if (isShape) {
if (ImGui::BeginCombo("Language", languages[selectedLanguage].name)) {
for (size_t i = 0; i < languages.size(); i++) {
if (ImGui::Selectable(languages[i].name, i == selectedLanguage)) {
selectedLanguage = i;
}

ImGui::SeparatorText("Font metrics");

ImGui::LabelText("Ascend", "%.3f", font.Ascend());
ImGui::LabelText("Descend", "%.3f", font.Descend());
ImGui::LabelText("Line gap", "%.3f", font.LineGap());
ImGui::LabelText("Line height", "%.3f", font.LineHeight());

ImGui::SeparatorText("OpenType text shaping");
ImGui::Checkbox("Enable##Shape Text", &isShape);

ImGui::BeginDisabled(!isShape);
if (ImGui::BeginCombo("Language", languages[selectedLanguage].name)) {
for (size_t i = 0; i < languages.size(); i++) {
if (ImGui::Selectable(languages[i].name, i == selectedLanguage)) {
selectedLanguage = i;
}
ImGui::EndCombo();
}
if (ImGui::BeginCombo("Script", scripts[selectedScript].name)) {
for (size_t i = 0; i < scripts.size(); i++) {
if (ImGui::Selectable(scripts[i].name, i == selectedScript)) {
selectedScript = i;
}
ImGui::EndCombo();
}

if (ImGui::BeginCombo("Script", scripts[selectedScript].name)) {
for (size_t i = 0; i < scripts.size(); i++) {
if (ImGui::Selectable(scripts[i].name, i == selectedScript)) {
selectedScript = i;
}
ImGui::EndCombo();
}
if (ImGui::BeginCombo("Direction",
directions[selectedDirection].name)) {
for (int i = 0; i < directions.size(); i++) {
if (ImGui::Selectable(directions[i].name, i == selectedDirection)) {
selectedDirection = i;
}
ImGui::EndCombo();
}
if (ImGui::BeginCombo("Direction", directions[selectedDirection].name)) {
for (int i = 0; i < directions.size(); i++) {
if (ImGui::Selectable(directions[i].name, i == selectedDirection)) {
selectedDirection = i;
}
ImGui::EndCombo();
}
ImGui::EndCombo();
}

ImGui::ColorPicker3("color", color, ImGuiColorEditFlags_InputRGB);
}
ImGui::EndDisabled();

ImGui::SeparatorText("Draw color");

ImGui::ColorPicker3("Foreground##color", color, ImGuiColorEditFlags_InputRGB);
}
ImGui::End();

if (ImGui::Begin("Input Text")) {
ImGui::InputTextMultiline("##InputText", buffer.data(), buffer.size());
if (context.showTextEditor) {
if (ImGui::Begin("Input text", &context.showTextEditor)) {
ImGui::InputTextMultiline("##InputText", buffer.data(), buffer.size());
}
ImGui::End();
}
ImGui::End();

if (ImGui::Begin("Debug")) {
ImGui::Checkbox("Enabled", &context.debug);
if (context.debug) {
if (context.debug) {
if (ImGui::Begin("Debug", &context.debug)) {
if (ImGui::CollapsingHeader("Features")) {
ImGui::Checkbox("Baseline", &context.debugBaseline);
ImGui::SameLine();
Expand Down Expand Up @@ -216,8 +249,8 @@ void MainScene::DoUI(Context &context) {
ImGuiColorEditFlags_NoTooltip | ImGuiColorEditFlags_NoLabel);
}
}
ImGui::End();
}
ImGui::End();

dirChooser.Display();
if (dirChooser.HasSelected()) {
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10 changes: 10 additions & 0 deletions main_scene.hpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,15 @@ class MainScene : public Scene {
ListFontFiles(const std::filesystem::path &path);

private:
static const inline std::string exampleText =
"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod \n"
"tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim \n"
"veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea \n"
"commodo consequat. Duis aute irure dolor in reprehenderit in voluptate \n"
"velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint \n"
"occaecat cupidatat non proident, sunt in culpa qui officia deserunt \n"
"mollit anim id est laborum.";

std::array<char, 4096> buffer = {0};
float color[3];
int fontSize = 64;
Expand All @@ -46,6 +55,7 @@ class MainScene : public Scene {
const char* name;
const hb_script_t script;
};

static constexpr std::array<ScriptPair, 7> scripts = {
ScriptPair{"Common", HB_SCRIPT_COMMON},
ScriptPair{"Thai", HB_SCRIPT_THAI},
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