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Additional duplicated comments about usage of std::string and input text resize callback (#2006, #1443, #1008)

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This commit is contained in:
omar 2019-12-25 17:46:35 +01:00
parent 854fc08194
commit dc66f83db8
2 changed files with 9 additions and 4 deletions
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2
imgui.h
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@ -468,7 +468,7 @@ namespace ImGui
IMGUI_API bool VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format = NULL, float power = 1.0f);
// Widgets: Input with Keyboard
// - If you want to use InputText() with a dynamic string type such as std::string or your own, see misc/cpp/imgui_stdlib.h
// - If you want to use InputText() with std::string or any custom dynamic string type, see misc/cpp/imgui_stdlib.h and comments in imgui_demo.cpp.
// - Most of the ImGuiInputTextFlags flags are only useful for InputText() and not for InputFloatX, InputIntX, InputDouble etc.
IMGUI_API bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputTextMultiline(const char* label, char* buf, size_t buf_size, const ImVec2& size = ImVec2(0,0), ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);

11
imgui_demo.cpp
View File

@ -514,6 +514,8 @@ static void ShowDemoWindowWidgets()
}
{
// To wire InputText() with std::string or any other custom string type,
// see the "Text Input > Resize Callback" section of this demo, and the misc/cpp/imgui_stdlib.h file.
static char str0[128] = "Hello, world!";
ImGui::InputText("input text", str0, IM_ARRAYSIZE(str0));
ImGui::SameLine(); HelpMarker("USER:\nHold SHIFT or use mouse to select text.\n" "CTRL+Left/Right to word jump.\n" "CTRL+A or double-click to select all.\n" "CTRL+X,CTRL+C,CTRL+V clipboard.\n" "CTRL+Z,CTRL+Y undo/redo.\n" "ESCAPE to revert.\n\nPROGRAMMER:\nYou can use the ImGuiInputTextFlags_CallbackResize facility if you need to wire InputText() to a dynamic string type. See misc/cpp/imgui_stdlib.h for an example (this is not demonstrated in imgui_demo.cpp).");
@ -989,6 +991,8 @@ static void ShowDemoWindowWidgets()
ImGui::TreePop();
}
// To wire InputText() with std::string or any other custom string type,
// see the "Text Input > Resize Callback" section of this demo, and the misc/cpp/imgui_stdlib.h file.
if (ImGui::TreeNode("Text Input"))
{
if (ImGui::TreeNode("Multi-line Text Input"))
@ -1008,7 +1012,7 @@ static void ShowDemoWindowWidgets()
"\tlock cmpxchg8b eax\n";
static ImGuiInputTextFlags flags = ImGuiInputTextFlags_AllowTabInput;
HelpMarker("You can use the ImGuiInputTextFlags_CallbackResize facility if you need to wire InputTextMultiline() to a dynamic string type. See misc/cpp/imgui_stdlib.h for an example. (This is not demonstrated in imgui_demo.cpp)");
HelpMarker("You can use the ImGuiInputTextFlags_CallbackResize facility if you need to wire InputTextMultiline() to a dynamic string type. See misc/cpp/imgui_stdlib.h for an example. (This is not demonstrated in imgui_demo.cpp because we don't want to include <string> in here)");
ImGui::CheckboxFlags("ImGuiInputTextFlags_ReadOnly", (unsigned int*)&flags, ImGuiInputTextFlags_ReadOnly);
ImGui::CheckboxFlags("ImGuiInputTextFlags_AllowTabInput", (unsigned int*)&flags, ImGuiInputTextFlags_AllowTabInput);
ImGui::CheckboxFlags("ImGuiInputTextFlags_CtrlEnterForNewLine", (unsigned int*)&flags, ImGuiInputTextFlags_CtrlEnterForNewLine);
@ -1037,8 +1041,9 @@ static void ShowDemoWindowWidgets()
if (ImGui::TreeNode("Resize Callback"))
{
// If you have a custom string type you would typically create a ImGui::InputText() wrapper than takes your type as input.
// See misc/cpp/imgui_stdlib.h and .cpp for an implementation of this using std::string.
// To wire InputText() with std::string or any other custom string type,
// you can use the ImGuiInputTextFlags_CallbackResize flag + create a custom ImGui::InputText() wrapper using your prefered type.
// See misc/cpp/imgui_stdlib.h for an implementation of this using std::string.
HelpMarker("Demonstrate using ImGuiInputTextFlags_CallbackResize to wire your resizable string type to InputText().\n\nSee misc/cpp/imgui_stdlib.h for an implementation of this for std::string.");
struct Funcs
{