c3bcf93698
- Refactor the way apps work: Instead of a C interface, they are now C++ classes. The main reasoning is that attaching data to an app was cumbersome. Having different implementations for different kinds of apps was cumbersome too. (3 or 4 layers of manifest nesting for the TactilityC project) - External apps are still written in C, but they get a createData/destroyData in their manifest, so: - External apps now have their own manifest. - All functions in the original AppManifest are removed and replaced by a single `createApp` function - External apps now automatically register (each app individually!) when they run the first time. As a side-effect they become visible in the `AppList` app! - Adapted all apps for the new interface. - Adapted all internal logic for these changes (Gui, ViewPort, Loader, AppContext, AppInstance, etc.) - Rewrote parts of Loader to use std::shared_ptr to make the code much safer. - Added a refcount check for the `AppInstance` and `App` at the end of their lifecycle. Show warning if refcount is too high.
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
#include <TactilityCore.h>
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#include "TextViewer.h"
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#include "lvgl.h"
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#include "lvgl/LabelUtils.h"
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#include "lvgl/Style.h"
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#include "lvgl/Toolbar.h"
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#include "service/loader/Loader.h"
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#define TAG "text_viewer"
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#define TEXT_VIEWER_FILE_ARGUMENT "file"
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namespace tt::app::textviewer {
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class TextViewerApp : public App {
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void onShow(AppContext& app, lv_obj_t* parent) override {
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lv_obj_set_flex_flow(parent, LV_FLEX_FLOW_COLUMN);
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lvgl::toolbar_create(parent, app);
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lv_obj_t* wrapper = lv_obj_create(parent);
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lv_obj_set_width(wrapper, LV_PCT(100));
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lv_obj_set_flex_grow(wrapper, 1);
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lv_obj_set_flex_flow(wrapper, LV_FLEX_FLOW_COLUMN);
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lvgl::obj_set_style_no_padding(wrapper);
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lvgl::obj_set_style_bg_invisible(wrapper);
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lv_obj_t* label = lv_label_create(wrapper);
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lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
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auto parameters = app.getParameters();
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tt_check(parameters != nullptr, "Parameters missing");
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bool success = false;
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std::string file_argument;
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if (parameters->optString(TEXT_VIEWER_FILE_ARGUMENT, file_argument)) {
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TT_LOG_I(TAG, "Opening %s", file_argument.c_str());
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if (lvgl::label_set_text_file(label, file_argument.c_str())) {
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success = true;
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}
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}
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if (!success) {
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lv_label_set_text_fmt(label, "Failed to load %s", file_argument.c_str());
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}
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}
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};
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extern const AppManifest manifest = {
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.id = "TextViewer",
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.name = "Text Viewer",
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.type = Type::Hidden,
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.createApp = create<TextViewerApp>
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};
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void start(const std::string& file) {
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auto parameters = std::make_shared<Bundle>();
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parameters->putString(TEXT_VIEWER_FILE_ARGUMENT, file);
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service::loader::startApp(manifest.id, parameters);
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}
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} // namespace
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