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Added InputTextHinted

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This commit is contained in:
Lucas Lazare 2019-03-04 23:43:28 -05:00
parent 94e794f81b
commit 9afeae3998
5 changed files with 70 additions and 9 deletions
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4
imgui.h
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@ -450,6 +450,7 @@ namespace ImGui
// - 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);
IMGUI_API bool InputTextHinted(const char* label, const char* hint, char* buf, size_t buf_size, bool* is_user_data, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputFloat(const char* label, float* v, float step = 0.0f, float step_fast = 0.0f, const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputFloat2(const char* label, float v[2], const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
IMGUI_API bool InputFloat3(const char* label, float v[3], const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
@ -757,7 +758,8 @@ enum ImGuiInputTextFlags_
ImGuiInputTextFlags_CharsScientific = 1 << 17, // Allow 0123456789.+-*/eE (Scientific notation input)
ImGuiInputTextFlags_CallbackResize = 1 << 18, // Callback on buffer capacity changes request (beyond 'buf_size' parameter value), allowing the string to grow. Notify when the string wants to be resized (for string types which hold a cache of their Size). You will be provided a new BufSize in the callback and NEED to honor it. (see misc/cpp/imgui_stdlib.h for an example of using this)
// [Internal]
ImGuiInputTextFlags_Multiline = 1 << 20 // For internal use by InputTextMultiline()
ImGuiInputTextFlags_Multiline = 1 << 20, // For internal use by InputTextMultiline()
ImGuiInputTextFlags_ShowTextAsDisabled = 1 << 21 // For internal use by InputTextHinted (text within the input text field is showed with the ImGuiCol_TextDisabled color)
};
// Flags for ImGui::TreeNodeEx(), ImGui::CollapsingHeader*()

6
imgui_demo.cpp
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@ -481,10 +481,14 @@ static void ShowDemoWindowWidgets()
{
static char str0[128] = "Hello, world!";
static int i0 = 123;
ImGui::InputText("input text", str0, IM_ARRAYSIZE(str0));
ImGui::SameLine(); ShowHelpMarker("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).");
static char str1[128] = "";
static bool is_user_data{false};
ImGui::InputTextHinted("hinted input text", "type text here", str1, IM_ARRAYSIZE(str1), &is_user_data);
static int i0 = 123;
ImGui::InputInt("input int", &i0);
ImGui::SameLine(); ShowHelpMarker("You can apply arithmetic operators +,*,/ on numerical values.\n e.g. [ 100 ], input \'*2\', result becomes [ 200 ]\nUse +- to subtract.\n");

56
imgui_widgets.cpp
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@ -2882,10 +2882,11 @@ bool ImGui::InputDouble(const char* label, double* v, double step, double step_f
}
//-------------------------------------------------------------------------
// [SECTION] Widgets: InputText, InputTextMultiline
// [SECTION] Widgets: InputText, InputTextMultiline, InputTextHinted
//-------------------------------------------------------------------------
// - InputText()
// - InputTextMultiline()
// - InputTextHinted()
// - InputTextEx() [Internal]
//-------------------------------------------------------------------------
@ -2900,6 +2901,41 @@ bool ImGui::InputTextMultiline(const char* label, char* buf, size_t buf_size, co
return InputTextEx(label, buf, (int)buf_size, size, flags | ImGuiInputTextFlags_Multiline, callback, user_data);
}
bool ImGui::InputTextHinted(const char* label, const char* hint, char* buf, size_t buf_size, bool* is_user_data, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
{
ImGuiWindow* window = GetCurrentWindow();
const ImGuiID id = window->GetID(label);
if (id != GetActiveID()) {
if (buf_size > 0 && !*buf) {
unsigned int len = (unsigned int)strlen(hint) + 1;
IM_ASSERT(buf_size >= len);
memcpy(buf, hint, len);
*is_user_data = false;
}
} else {
if (!*is_user_data) {
ImGuiInputTextState& state = GImGui->InputTextState;
state.TextW[0] = '\0';
state.CurLenW = 0;
state.TextA[0] = '\0';
state.CurLenA = 0;
state.InitialTextA[0] = '\0';
state.Stb.cursor = 0;
*is_user_data = true;
}
}
if (!*is_user_data) {
ImGuiInputTextFlags CallbackFlags = ImGuiInputTextFlags_CallbackCompletion | ImGuiInputTextFlags_CallbackHistory | ImGuiInputTextFlags_CallbackAlways | ImGuiInputTextFlags_CallbackCharFilter;
InputTextEx(label, buf, (int) buf_size, ImVec2(0, 0), (flags | ImGuiInputTextFlags_ShowTextAsDisabled) & ~CallbackFlags, NULL, NULL);
return false;
} else {
return InputTextEx(label, buf, (int)buf_size, ImVec2(0,0), flags, callback, user_data);
}
}
static int InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end)
{
int line_count = 0;
@ -3859,8 +3895,10 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
// We test for 'buf_display_max_length' as a way to avoid some pathological cases (e.g. single-line 1 MB string) which would make ImDrawList crash.
buf_display = (!is_readonly && state->TextAIsValid) ? state->TextA.Data : buf;
buf_display_end = buf_display + state->CurLenA;
if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length)
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos - draw_scroll, GetColorU32(ImGuiCol_Text), buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length) {
ImGuiCol text_color = flags & ImGuiInputTextFlags_ShowTextAsDisabled ? ImGuiCol_TextDisabled : ImGuiCol_Text;
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos - draw_scroll, GetColorU32(text_color), buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
}
// Draw blinking cursor
if (render_cursor)
@ -3869,8 +3907,10 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
bool cursor_is_visible = (!g.IO.ConfigInputTextCursorBlink) || (state->CursorAnim <= 0.0f) || ImFmod(state->CursorAnim, 1.20f) <= 0.80f;
ImVec2 cursor_screen_pos = draw_pos + cursor_offset - draw_scroll;
ImRect cursor_screen_rect(cursor_screen_pos.x, cursor_screen_pos.y - g.FontSize + 0.5f, cursor_screen_pos.x + 1.0f, cursor_screen_pos.y - 1.5f);
if (cursor_is_visible && cursor_screen_rect.Overlaps(clip_rect))
draw_window->DrawList->AddLine(cursor_screen_rect.Min, cursor_screen_rect.GetBL(), GetColorU32(ImGuiCol_Text));
if (cursor_is_visible && cursor_screen_rect.Overlaps(clip_rect)) {
ImGuiCol text_color = flags & ImGuiInputTextFlags_ShowTextAsDisabled ? ImGuiCol_TextDisabled : ImGuiCol_Text;
draw_window->DrawList->AddLine(cursor_screen_rect.Min, cursor_screen_rect.GetBL(), GetColorU32(text_color));
}
// Notify OS of text input position for advanced IME (-1 x offset so that Windows IME can cover our cursor. Bit of an extra nicety.)
if (!is_readonly)
@ -3887,8 +3927,10 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
buf_display_end = buf_display + state->CurLenA;
else
buf_display_end = buf_display + strlen(buf_display);
if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length)
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos, GetColorU32(ImGuiCol_Text), buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length) {
ImGuiCol text_color = flags & ImGuiInputTextFlags_ShowTextAsDisabled ? ImGuiCol_TextDisabled : ImGuiCol_Text;
draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos, GetColorU32(text_color), buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
}
}
if (is_multiline)

12
misc/cpp/imgui_stdlib.cpp
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@ -63,3 +63,15 @@ bool ImGui::InputTextMultiline(const char* label, std::string* str, const ImVec2
cb_user_data.ChainCallbackUserData = user_data;
return InputTextMultiline(label, (char*)str->c_str(), str->capacity() + 1, size, flags, InputTextCallback, &cb_user_data);
}
bool ImGui::InputTextHinted(const char* label, const char* hint, std::string* str, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
{
IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0);
flags |= ImGuiInputTextFlags_CallbackResize;
InputTextCallback_UserData cb_user_data;
cb_user_data.Str = str;
cb_user_data.ChainCallback = callback;
cb_user_data.ChainCallbackUserData = user_data;
return InputTextHinted(label, hint, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, &cb_user_data);
}

1
misc/cpp/imgui_stdlib.h
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@ -19,4 +19,5 @@ namespace ImGui
// Because text input needs dynamic resizing, we need to setup a callback to grow the capacity
IMGUI_API bool InputText(const char* label, std::string* str, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputTextMultiline(const char* label, std::string* str, const ImVec2& size = ImVec2(0, 0), ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputTextHinted(const char* label, const char* hint, std::string* str, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
}