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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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112
src/ImGuiVisitor.cpp
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@@ -53,6 +53,7 @@
#include "NetworkSource.h"
#include "SrtReceiverSource.h"
#include "MultiFileSource.h"
#include "TextSource.h"
#include "SessionCreator.h"
#include "SessionVisitor.h"
#include "Settings.h"
@@ -809,7 +810,8 @@ void ImGuiVisitor::visit (MediaSource& s)
}
}
}
else
ImGui::SetCursorPos(botom);
}
else {
// failed
@@ -1833,3 +1835,111 @@ void ImGuiVisitor::visit (SrtReceiverSource& s)
ImGui::SetCursorPos(botom);
}
void ImGuiVisitor::visit(TextSource &s)
{
ImVec2 top = ImGui::GetCursorPos();
top.x = 0.5f * ImGui::GetFrameHeight() + ImGui::GetContentRegionAvail().x IMGUI_RIGHT_ALIGN;
float w = ImGui::GetContentRegionAvail().x IMGUI_RIGHT_ALIGN;
// network info
ImGui::PushTextWrapPos(ImGui::GetCursorPos().x
+ ImGui::GetContentRegionAvail().x IMGUI_RIGHT_ALIGN);
s.accept(info);
ImGui::Text("%s", info.str().c_str());
ImGui::PopTextWrapPos();
ImGui::Spacing();
ImVec2 botom = ImGui::GetCursorPos();
TextContents *tc = s.contents();
if (tc) {
// Prepare display text
static int numlines = 0;
const ImGuiContext &g = *GImGui;
ImVec2 fieldsize(w, MAX(3, numlines) * g.FontSize + g.Style.ItemSpacing.y + g.Style.FramePadding.y);
// Editor
std::string _contents = tc->text();
// if the content is a subtitle file
if (tc->isSubtitle()) {
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);
botom = ImGui::GetCursorPos();
// Action on the filename
ImGui::SetCursorPos(ImVec2(top.x, botom.y - ImGui::GetFrameHeight()));
if (ImGuiToolkit::IconButton(3, 5, "Open"))
SystemToolkit::open(_contents.c_str());
}
// general case of free text
else {
if (ImGuiToolkit::InputTextMultiline("Text", &_contents, fieldsize, &numlines)) {
info.reset();
tc->setText(_contents);
Action::manager().store(s.name() + ": Change text");
}
botom = ImGui::GetCursorPos();
// Actions on the text
ImGui::SetCursorPos(ImVec2(top.x, botom.y - ImGui::GetFrameHeight()));
if (ImGuiToolkit::IconButton(ICON_FA_COPY, "Copy"))
ImGui::SetClipboardText(_contents.c_str());
ImGui::SetCursorPos(
ImVec2(top.x + 0.9 * ImGui::GetFrameHeight(), botom.y - ImGui::GetFrameHeight()));
if (ImGuiToolkit::IconButton(ICON_FA_PASTE, "Paste")) {
_contents = std::string(ImGui::GetClipboardText());
info.reset();
tc->setText(_contents);
Action::manager().store(s.name() + ": Change text");
}
}
// Properties
ImGui::SetCursorPos(botom);
std::string font = tc->fontDescriptor();
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
ImGuiToolkit::InputText("Font", &font);
if (ImGui::IsItemDeactivatedAfterEdit()) {
tc->setFontDescriptor(font);
Action::manager().store( s.name() + " Change font");
}
int align = tc->halignment();
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
if (ImGui::Combo("Horizontal", &align, "Left\0Center\0Right\0Absolute\0")) {
tc->setHalignment(align);
Action::manager().store( s.name() + " Horizontal align");
}
align = tc->valignment();
ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
if (ImGui::Combo("Vertical", &align, "Baseline\0Bottom\0top\0Absolute\0Center\0")) {
tc->setValignment(align);
Action::manager().store( s.name() + " Vertical align");
}
botom = ImGui::GetCursorPos();
}
if ( !s.failed() ) {
// icon (>) to open player
if ( s.stream()->isOpen() ) {
ImGui::SetCursorPos(top);
std::string msg = s.playing() ? "Open Player\n(source is playing)" : "Open Player\n(source is paused)";
if (ImGuiToolkit::IconButton( s.playing() ? ICON_FA_PLAY_CIRCLE : ICON_FA_PAUSE_CIRCLE, msg.c_str()))
UserInterface::manager().showSourceEditor(&s);
}
else
info.reset();
}
else
info.reset();
ImGui::SetCursorPos(botom);
}