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New Text source

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Initial implementation of Text Source, displaying free text or subtitle file. support for Pango font description and formatting tags via gstreamer textoverlay plugin. Saving and loading in XML, GUI for creation (in patterns) and for editing.
This commit is contained in:
Bruno Herbelin
2023-11-12 01:15:54 +01:00
parent f497da7967
commit d39064b209
28 changed files with 1141 additions and 19 deletions
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124
src/UserInterfaceManager.cpp
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@@ -2730,7 +2730,7 @@ void Navigator::clearNewPannel()
{
new_source_preview_.setSource();
pattern_type = -1;
custom_pipeline = false;
generated_type = -1;
custom_connected = false;
custom_screencapture = false;
sourceSequenceFiles.clear();
@@ -3748,6 +3748,7 @@ void Navigator::RenderNewPannel(const ImVec2 &iconsize)
// Generated patterns Source creator
else if (Settings::application.source.new_type == SOURCE_GENERATED){
static DialogToolkit::OpenSubtitleDialog subtitleopenialog("Open Subtitle");
bool update_new_source = false;
ImGui::Text("Patterns & generated graphics");
@@ -3757,7 +3758,12 @@ void Navigator::RenderNewPannel(const ImVec2 &iconsize)
{
if ( ImGui::Selectable("Custom gstreamer " ICON_FA_CODE) ) {
update_new_source = true;
custom_pipeline = true;
generated_type = 0;
pattern_type = -1;
}
if ( ImGui::Selectable("Text " ICON_FA_CODE) ) {
update_new_source = true;
generated_type = 1;
pattern_type = -1;
}
for (int p = 0; p < (int) Pattern::count(); ++p){
@@ -3765,20 +3771,25 @@ void Navigator::RenderNewPannel(const ImVec2 &iconsize)
std::string label = pattern.label + (pattern.animated ? " " ICON_FA_PLAY_CIRCLE : " ");
if (pattern.available && ImGui::Selectable( label.c_str(), p == pattern_type )) {
update_new_source = true;
custom_pipeline = false;
generated_type = 2;
pattern_type = p;
}
}
ImGui::EndCombo();
}
static ImVec2 fieldsize(ImGui::GetContentRegionAvail().x IMGUI_RIGHT_ALIGN, 100);
static int numlines = 0;
const ImGuiContext& g = *GImGui;
fieldsize.y = MAX(3, numlines) * g.FontSize + g.Style.ItemSpacing.y + g.Style.FramePadding.y;
// Indication
ImGui::SameLine();
ImGuiToolkit::HelpToolTip("Create a source with patterns or graphics generated algorithmically. "
"Entering a custom gstreamer pipeline is also possible.");
"Entering text or a custom gstreamer pipeline is also possible.");
ImGui::Spacing();
if (custom_pipeline) {
if (generated_type == 0) {
static std::vector< std::pair< std::string, std::string> > _examples = { {"Videotest", "videotestsrc horizontal-speed=1 ! video/x-raw, width=640, height=480 " },
{"Checker", "videotestsrc pattern=checkers-8 ! video/x-raw, width=64, height=64 "},
{"Color", "videotestsrc pattern=gradient foreground-color= 0xff55f54f background-color= 0x000000 "},
@@ -3787,10 +3798,6 @@ void Navigator::RenderNewPannel(const ImVec2 &iconsize)
{"SRT listener", "srtsrc uri=\"srt://:5000?mode=listener\" ! decodebin "}
};
static std::string _description = _examples[0].second;
static ImVec2 fieldsize(ImGui::GetContentRegionAvail().x IMGUI_RIGHT_ALIGN, 100);
static int numlines = 0;
const ImGuiContext& g = *GImGui;
fieldsize.y = MAX(3, numlines) * g.FontSize + g.Style.ItemSpacing.y + g.Style.FramePadding.y;
// Editor
if ( ImGuiToolkit::InputCodeMultiline("Pipeline", &_description, fieldsize, &numlines) )
@@ -3801,7 +3808,6 @@ void Navigator::RenderNewPannel(const ImVec2 &iconsize)
ImGui::SetCursorPos( pos_bot + ImVec2(fieldsize.x + IMGUI_SAME_LINE, -ImGui::GetFrameHeightWithSpacing()));
if (ImGui::BeginCombo("##Examples", "Examples", ImGuiComboFlags_NoPreview | ImGuiComboFlags_HeightLarge)) {
ImGui::TextDisabled("Examples");
ImGui::Separator();
for (auto it = _examples.begin(); it != _examples.end(); ++it) {
if (ImGui::Selectable( it->first.c_str() ) ) {
_description = it->second;
@@ -3822,10 +3828,108 @@ void Navigator::RenderNewPannel(const ImVec2 &iconsize)
new_source_preview_.setSource( Mixer::manager().createSourceStream(_description), "Custom");
}
// if text source selected
else if (generated_type == 1) {
static std::vector<std::pair<std::string, std::string> > _examples
= {{"Hello", "Hello world!"},
{"Italics", "<i>Text in italics</i>"},
{"Multiline", "One\nTwo\nThree\nFour\nFive"},
{"Code", "<tt>Monospace</tt>"}};
static std::string _contents = _examples[0].second;
// Editor
if (SystemToolkit::file_exists(_contents)) {
static char dummy_str[1024];
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
snprintf(dummy_str, 1024, "%s", _contents.c_str());
ImGui::PushStyleColor(ImGuiCol_FrameBg, ImVec4(0.14f, 0.14f, 0.14f, 0.9f));
ImGui::InputText("##Filesubtitle",
dummy_str,
IM_ARRAYSIZE(dummy_str),
ImGuiInputTextFlags_ReadOnly);
ImGui::PopStyleColor(1);
} else if (ImGuiToolkit::InputTextMultiline("Text", &_contents, fieldsize, &numlines))
update_new_source = true;
// Local menu for list of examples
ImVec2 pos_bot = ImGui::GetCursorPos();
ImGui::SetCursorPos(
pos_bot
+ ImVec2(fieldsize.x + IMGUI_SAME_LINE, -ImGui::GetFrameHeightWithSpacing()));
if (ImGui::BeginCombo("##Examples",
"Examples",
ImGuiComboFlags_NoPreview | ImGuiComboFlags_HeightLarge)) {
if (ImGui::Selectable(ICON_FA_FOLDER_OPEN " Open subtitle"))
subtitleopenialog.open();
ImGui::Separator();
ImGui::TextDisabled("Examples");
for (auto it = _examples.begin(); it != _examples.end(); ++it) {
if (ImGui::Selectable(it->first.c_str())) {
_contents = it->second;
update_new_source = true;
}
}
ImGui::Separator();
ImGui::TextDisabled("Explore online");
if (ImGui::Selectable(ICON_FA_EXTERNAL_LINK_ALT " Pango syntax"))
SystemToolkit::open("https://docs.gtk.org/Pango/pango_markup.html");
if (ImGui::Selectable(ICON_FA_EXTERNAL_LINK_ALT " Gstreamer"))
SystemToolkit::open(
"https://gstreamer.freedesktop.org/documentation/pango/"
"textoverlay.html?gi-language=c#textoverlay-page");
if (ImGui::Selectable(ICON_FA_EXTERNAL_LINK_ALT " SubRip files"))
SystemToolkit::open("https://en.wikipedia.org/wiki/SubRip");
ImGui::EndCombo();
}
ImGui::SameLine(0, IMGUI_SAME_LINE);
ImGuiToolkit::Indication("More text layout options are available after source creation.", ICON_FA_INFO_CIRCLE);
ImGui::SetCursorPos(pos_bot);
// resolution
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
if (ImGui::Combo("Ratio",
&Settings::application.source.ratio,
GlmToolkit::aspect_ratio_names,
IM_ARRAYSIZE(GlmToolkit::aspect_ratio_names)))
update_new_source = true;
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
if (ImGui::Combo("Height",
&Settings::application.source.res,
GlmToolkit::height_names,
IM_ARRAYSIZE(GlmToolkit::height_names)))
update_new_source = true;
// get subtitle file if dialog finished
if (subtitleopenialog.closed()) {
// get the filename from this file dialog
std::string importpath = subtitleopenialog.path();
// open file
if (!importpath.empty()) {
_contents = importpath;
update_new_source = true;
}
}
// take action
if (update_new_source) {
glm::ivec2 res = GlmToolkit::resolutionFromDescription(Settings::application.source.ratio, Settings::application.source.res);
new_source_preview_.setSource(Mixer::manager().createSourceText(_contents, res), "Text");
}
}
// if pattern selected
else {
// resolution
if (pattern_type >= 0) {
static char dummy_str[1024];
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
pattern_descriptor pattern = Pattern::get(pattern_type);
snprintf(dummy_str, 1024, "%s", pattern.label.c_str());
ImGui::PushStyleColor(ImGuiCol_FrameBg, ImVec4(0.14f, 0.14f, 0.14f, 0.9f));
ImGui::InputText("Pattern", dummy_str, IM_ARRAYSIZE(dummy_str), ImGuiInputTextFlags_ReadOnly);
ImGui::PopStyleColor(1);
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
if (ImGui::Combo("Ratio", &Settings::application.source.ratio,
GlmToolkit::aspect_ratio_names, IM_ARRAYSIZE(GlmToolkit::aspect_ratio_names) ) )