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Demo: Added Auto-Scroll option in Log/Console. Comments. Removed some ImColor() uses.

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This commit is contained in:
omar
2019-02-14 14:00:30 +01:00
parent 8522a4bbea
commit 2206df9e7a
3 changed files with 67 additions and 21 deletions
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85
imgui_demo.cpp
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@@ -1005,7 +1005,7 @@ static void ShowDemoWindowWidgets()
if (ImGui::TreeNode("Color/Picker Widgets"))
{
static ImVec4 color = ImColor(114, 144, 154, 200);
static ImVec4 color = ImVec4(114.0f/255.0f, 144.0f/255.0f, 154.0f/255.0f, 200.0f/255.0f);
static bool alpha_preview = true;
static bool alpha_half_preview = false;
@@ -3095,10 +3095,12 @@ struct ExampleAppConsole
{
char InputBuf[256];
ImVector<char*> Items;
bool ScrollToBottom;
ImVector<const char*> Commands;
ImVector<char*> History;
int HistoryPos; // -1: new line, 0..History.Size-1 browsing history.
ImVector<const char*> Commands;
ImGuiTextFilter Filter;
bool AutoScroll;
bool ScrollToBottom;
ExampleAppConsole()
{
@@ -3109,6 +3111,8 @@ struct ExampleAppConsole
Commands.push_back("HISTORY");
Commands.push_back("CLEAR");
Commands.push_back("CLASSIFY"); // "classify" is only here to provide an example of "C"+[tab] completing to "CL" and displaying matches.
AutoScroll = true;
ScrollToBottom = true;
AddLog("Welcome to Dear ImGui!");
}
~ExampleAppConsole()
@@ -3142,7 +3146,8 @@ struct ExampleAppConsole
buf[IM_ARRAYSIZE(buf)-1] = 0;
va_end(args);
Items.push_back(Strdup(buf));
ScrollToBottom = true;
if (AutoScroll)
ScrollToBottom = true;
}
void Draw(const char* title, bool* p_open)
@@ -3168,7 +3173,7 @@ struct ExampleAppConsole
// TODO: display items starting from the bottom
if (ImGui::SmallButton("Add Dummy Text")) { AddLog("%d some text", Items.Size); AddLog("some more text"); AddLog("display very important message here!"); } ImGui::SameLine();
if (ImGui::SmallButton("Add Dummy Text")) { AddLog("%d some text", Items.Size); AddLog("some more text"); AddLog("display very important message here!"); } ImGui::SameLine();
if (ImGui::SmallButton("Add Dummy Error")) { AddLog("[error] something went wrong"); } ImGui::SameLine();
if (ImGui::SmallButton("Clear")) { ClearLog(); } ImGui::SameLine();
bool copy_to_clipboard = ImGui::SmallButton("Copy"); ImGui::SameLine();
@@ -3177,10 +3182,20 @@ struct ExampleAppConsole
ImGui::Separator();
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0,0));
static ImGuiTextFilter filter;
filter.Draw("Filter (\"incl,-excl\") (\"error\")", 180);
ImGui::PopStyleVar();
// Options menu
if (ImGui::BeginPopup("Options"))
{
if (ImGui::Checkbox("Auto-scroll", &AutoScroll))
if (AutoScroll)
ScrollToBottom = true;
ImGui::EndPopup();
}
// Options, Filter
if (ImGui::Button("Options"))
ImGui::OpenPopup("Options");
ImGui::SameLine();
Filter.Draw("Filter (\"incl,-excl\") (\"error\")", 180);
ImGui::Separator();
const float footer_height_to_reserve = ImGui::GetStyle().ItemSpacing.y + ImGui::GetFrameHeightWithSpacing(); // 1 separator, 1 input text
@@ -3205,18 +3220,19 @@ struct ExampleAppConsole
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(4,1)); // Tighten spacing
if (copy_to_clipboard)
ImGui::LogToClipboard();
ImVec4 col_default_text = ImGui::GetStyleColorVec4(ImGuiCol_Text);
for (int i = 0; i < Items.Size; i++)
{
const char* item = Items[i];
if (!filter.PassFilter(item))
if (!Filter.PassFilter(item))
continue;
ImVec4 col = col_default_text;
if (strstr(item, "[error]")) col = ImColor(1.0f,0.4f,0.4f,1.0f);
else if (strncmp(item, "# ", 2) == 0) col = ImColor(1.0f,0.78f,0.58f,1.0f);
ImGui::PushStyleColor(ImGuiCol_Text, col);
// Normally you would store more information in your item (e.g. make Items[] an array of structure, store color/type etc.)
bool pop_color = false;
if (strstr(item, "[error]")) { ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1.0f, 0.4f, 0.4f, 1.0f)); pop_color = true; }
else if (strncmp(item, "# ", 2) == 0) { ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1.0f, 0.8f, 0.6f, 1.0f)); pop_color = true; }
ImGui::TextUnformatted(item);
ImGui::PopStyleColor();
if (pop_color)
ImGui::PopStyleColor();
}
if (copy_to_clipboard)
ImGui::LogFinish();
@@ -3283,6 +3299,9 @@ struct ExampleAppConsole
{
AddLog("Unknown command: '%s'\n", command_line);
}
// On commad input, we scroll to bottom even if AutoScroll==false
ScrollToBottom = true;
}
static int TextEditCallbackStub(ImGuiInputTextCallbackData* data) // In C++11 you are better off using lambdas for this sort of forwarding callbacks
@@ -3411,10 +3430,12 @@ struct ExampleAppLog
ImGuiTextBuffer Buf;
ImGuiTextFilter Filter;
ImVector<int> LineOffsets; // Index to lines offset. We maintain this with AddLog() calls, allowing us to have a random access on lines
bool AutoScroll;
bool ScrollToBottom;
ExampleAppLog()
{
AutoScroll = true;
ScrollToBottom = false;
Clear();
}
@@ -3436,7 +3457,8 @@ struct ExampleAppLog
for (int new_size = Buf.size(); old_size < new_size; old_size++)
if (Buf[old_size] == '\n')
LineOffsets.push_back(old_size + 1);
ScrollToBottom = true;
if (AutoScroll)
ScrollToBottom = true;
}
void Draw(const char* title, bool* p_open = NULL)
@@ -3446,13 +3468,31 @@ struct ExampleAppLog
ImGui::End();
return;
}
if (ImGui::Button("Clear")) Clear();
// Options menu
if (ImGui::BeginPopup("Options"))
{
if (ImGui::Checkbox("Auto-scroll", &AutoScroll))
if (AutoScroll)
ScrollToBottom = true;
ImGui::EndPopup();
}
// Main window
if (ImGui::Button("Options"))
ImGui::OpenPopup("Options");
ImGui::SameLine();
bool clear = ImGui::Button("Clear");
ImGui::SameLine();
bool copy = ImGui::Button("Copy");
ImGui::SameLine();
Filter.Draw("Filter", -100.0f);
ImGui::Separator();
ImGui::BeginChild("scrolling", ImVec2(0,0), false, ImGuiWindowFlags_HorizontalScrollbar);
if (clear)
Clear();
if (copy)
ImGui::LogToClipboard();
@@ -3461,6 +3501,10 @@ struct ExampleAppLog
const char* buf_end = Buf.end();
if (Filter.IsActive())
{
// In this example we don't use the clipper when Filter is enabled.
// This is because we don't have a random access on the result on our filter.
// A real application processing logs with ten of thousands of entries may want to store the result of search/filter.
// especially if the filtering function is not trivial (e.g. reg-exp).
for (int line_no = 0; line_no < LineOffsets.Size; line_no++)
{
const char* line_start = buf + LineOffsets[line_no];
@@ -3508,11 +3552,12 @@ static void ShowExampleAppLog(bool* p_open)
{
static ExampleAppLog log;
// For the demo: add a debug button before the normal log window contents
// For the demo: add a debug button _BEFORE_ the normal log window contents
// We take advantage of the fact that multiple calls to Begin()/End() are appending to the same window.
// Most of the contents of the window will be added by the log.Draw() call.
ImGui::SetNextWindowSize(ImVec2(500, 400), ImGuiCond_FirstUseEver);
ImGui::Begin("Example: Log", p_open);
if (ImGui::SmallButton("Add 5 entries"))
if (ImGui::SmallButton("[Debug] Add 5 entries"))
{
static int counter = 0;
for (int n = 0; n < 5; n++)