Editor: testing out text input

mario/scenes/editor_main.cpp

@@ -11,6 +11,7 @@
 #include "../editor_visitor.hpp"
 #include "../tool_box.hpp"
 #include "../blocks/coineditorblock.hpp"
+#include <SDL2/SDL_keycode.h>
 #include <array>
 
 #ifdef _WIN32
@@ -36,6 +37,8 @@
 #define CHARACTER_LEFT_ENABLED_FLAG 0x00000100
 #define CHARACTER_RIGHT_ENABLED_FLAG 0x00000200
 #define LOAD_MAP_FLAG 0x00000400
+#define TEXT_UPDATE_FLAG 0x00000800
+#define TEXT_INPUT_FLAG 0x00001000
 
 #define TOOLS_WIDTH 4
 #define CHARACTER_WIDTH 3
@@ -120,6 +123,9 @@ std::shared_ptr<SDLPP::Scene> editorScene;
 SceneStruct mainMenuScene;
 //SceneStruct fileChoiceScene;
 
+std::shared_ptr<SDLPP::TextRenderer> global_test_text{};
+std::string global_test_text_text{};
+
 void openMapEditor(std::shared_ptr<SDLPP::Scene> &scene, const std::string &filename);
 
 void setFlag(uint64_t flag) {
@@ -773,7 +779,29 @@ void pollEvents(std::shared_ptr<SDLPP::Scene> &scene) {
             setFlag(QUIT_FLAG);
             break;
         case SDL_KEYUP:
-            handleKeyUp(event.key.keysym.sym, *scene);
+            if(!getFlag(TEXT_INPUT_FLAG)) {
+                handleKeyUp(event.key.keysym.sym, *scene);
+            } else {
+                if ( event.key.keysym.sym == SDLK_ESCAPE || event.key.keysym.sym == SDLK_RETURN ) {
+                    SDL_StopTextInput();
+                    unsetFlag(TEXT_INPUT_FLAG);
+                }
+            }
+            break;
+        case SDL_KEYDOWN:
+            if(getFlag(TEXT_INPUT_FLAG)) {
+                if( event.key.keysym.sym == SDLK_BACKSPACE && !global_test_text_text.empty() ) {
+                    global_test_text_text.pop_back();
+                    setFlag(TEXT_UPDATE_FLAG);
+                } else if( event.key.keysym.sym == SDLK_c && SDL_GetModState() & KMOD_CTRL ) {
+                    // handle copy
+                    SDL_SetClipboardText( global_test_text_text.c_str() );
+                } else if( event.key.keysym.sym == SDLK_v && SDL_GetModState() & KMOD_CTRL ) {
+                    // handle paste
+                    global_test_text_text += SDL_GetClipboardText();
+                    setFlag(TEXT_UPDATE_FLAG);
+                }
+            }
             break;
         case SDL_WINDOWEVENT:
             if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
@@ -838,6 +866,10 @@ void pollEvents(std::shared_ptr<SDLPP::Scene> &scene) {
                 global_vars.current_tool->onScrollDown();
             }
             break;
+        case SDL_TEXTINPUT:
+            global_test_text_text += event.text.text;
+            setFlag(TEXT_UPDATE_FLAG);
+            break;
         default:
             break;
         }
@@ -966,10 +998,9 @@ void populateWorldType(
     scene->addObject(tool_text);
 }
 
-void testButtonFunc(void *input, Button *caller) {
-    auto actual = static_cast<int*>(input);
-    std::cout << "NUM: " << *actual << std::endl;
-    caller->disable();
+void testButtonFunc(void */*UNUSED*/, Button */*UNUSED*/) {
+    setFlag(TEXT_INPUT_FLAG);
+    SDL_StartTextInput();
 }
 
 void openMapEditor(std::shared_ptr<SDLPP::Scene> &scene, const std::string &filename) {
@@ -1032,6 +1063,13 @@ void openMapEditor(std::shared_ptr<SDLPP::Scene> &scene, const std::string &file
     createGrid(BLOCK_SIZE, 1 - (MAP_HEIGHT + 3) * BLOCK_SIZE, OVERWORLD_WIDTH,
                2, scene);
 
+    global_test_text = std::make_shared<SDLPP::TextRenderer>(
+        0.3, 0.05, BLOCK_SIZE*4, BLOCK_SIZE*2,
+        renderer, "TEST TEXT", font_config, SDLPP_TEXT_CENTER);
+    global_test_text->setAlignment(SDLPP::OBJ_CENTER, SDLPP::OBJ_CENTER);
+    global_test_text->setPermanent();
+    scene->addObject(global_test_text);
+
     global_vars.map.max_page = global_vars.objects.size() - MAP_WIDTH;
     // arrowInputs[1] - rightMapInput, arrowInputs[0] - leftMapInput
     toolMoveUpdateButtons(arrowInputs[1].other_button.get(), arrowInputs[0].other_button.get(), global_vars.map.cur_page, global_vars.map.max_page, true);
@@ -1217,6 +1255,10 @@ std::shared_ptr<SDLPP::Scene> createEditorMainScene(std::shared_ptr<SDLPP::Rende
     toolMoveUpdateButtons(right_character_input.other_button.get(), global_vars.buttons.back().get(), global_vars.tool.cur_page_characters, global_vars.tool.max_page_characters, false);
     left_character_input.other_button = global_vars.buttons.back();
 
+    global_vars.buttons.emplace_back(std::make_shared<Button>(0, 0, 0.2, 0.2, renderer, "Write Button", default_button_theme, testButtonFunc, nullptr));
+    global_vars.buttons.back()->setPermanent();
+    global_vars.buttons.back()->setButtonIndex(global_vars.buttons.size() - 1);
+
     openMapEditor(scene, "");
 
     return scene;
@@ -1237,6 +1279,11 @@ void editorAdditionalRender(std::shared_ptr<SDLPP::Scene> &scene) {
         openMapEditor(editorScene, "test_binary.bin");
         unsetFlag(LOAD_MAP_FLAG);
     }
+    if (getFlag(TEXT_UPDATE_FLAG)) {
+        global_test_text->changeText(global_test_text_text);
+        unsetFlag(TEXT_UPDATE_FLAG);
+        setFlag(UPDATE_FLAG);
+    }
 }
 
 SceneStruct createEditorScene(std::shared_ptr<SDLPP::Renderer> &renderer) {

sdlpp/sdlpp_textrenderer.cpp

@@ -78,6 +78,10 @@ void TextRenderer::render() {
     }
 }
 void TextRenderer::updateTexture() {
+    if(_text.empty()) {
+        texture = NULL;
+        return;
+    }
     int fontSize = 0.6 * getRect().h;
     _config->getFont()->changeFontSize( fontSize );
     int intOutline = _config->getOutlineSize();