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Support for international text input in UTF-8. Added ImeSetInputScreenPosFn(). Removed text_end parameter from SetClipboardTextF
This commit is contained in:
ocornut
parent
df1c056c88
commit
b86505bf2f
323
imgui.cpp
323
imgui.cpp
@ -1,4 +1,4 @@
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// ImGui library v1.12
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// ImGui library v1.12+
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// See ImGui::ShowTestWindow() for sample code.
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// Read 'Programmer guide' below for notes on how to setup ImGui in your codebase.
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// Get latest version at https://github.com/ocornut/imgui
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@ -139,6 +139,7 @@
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API BREAKING CHANGES
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====================
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- 2014/09/25 (1.13) removed 'text_end' parameter from IO.SetClipboardTextFn (the string is now always zero-terminated for simplicity)
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- 2014/09/24 (1.12) renamed SetFontScale() to SetWindowFontScale()
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- 2014/09/24 (1.12) moved IM_MALLOC/IM_REALLOC/IM_FREE preprocessor defines to IO.MemAllocFn/IO.MemReallocFn/IO.MemFreeFn
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- 2014/08/30 (1.09) removed IO.FontHeight (now computed automatically)
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@ -246,7 +247,7 @@ static ImGuiWindow* FindHoveredWindow(ImVec2 pos, bool excluding_childs);
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//-----------------------------------------------------------------------------
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static const char* GetClipboardTextFn_DefaultImpl();
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static void SetClipboardTextFn_DefaultImpl(const char* text, const char* text_end);
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static void SetClipboardTextFn_DefaultImpl(const char* text);
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//-----------------------------------------------------------------------------
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// User facing structures
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@ -325,22 +326,23 @@ ImGuiIO::ImGuiIO()
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MouseDoubleClickTime = 0.30f;
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MouseDoubleClickMaxDist = 6.0f;
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// Memory management functions, default to posix
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// User functions
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RenderDrawListsFn = NULL;
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MemAllocFn = malloc;
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MemReallocFn = realloc;
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MemFreeFn = free;
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// Platform dependant default implementations
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GetClipboardTextFn = GetClipboardTextFn_DefaultImpl;
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GetClipboardTextFn = GetClipboardTextFn_DefaultImpl; // Platform dependant default implementations
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SetClipboardTextFn = SetClipboardTextFn_DefaultImpl;
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ImeSetInputScreenPosFn = NULL;
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}
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// Pass in translated ASCII characters for text input.
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// - with glfw you can get those from the callback set in glfwSetCharCallback()
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// - on Windows you can get those using ToAscii+keyboard state, or via the VM_CHAR message
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void ImGuiIO::AddInputCharacter(char c)
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static size_t ImStrlenW(const ImWchar* str);
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void ImGuiIO::AddInputCharacter(ImWchar c)
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{
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const size_t n = strlen(InputCharacters);
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const size_t n = ImStrlenW(InputCharacters);
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if (n < sizeof(InputCharacters) / sizeof(InputCharacters[0]))
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{
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InputCharacters[n] = c;
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@ -390,7 +392,10 @@ static inline ImVec2 ImLerp(const ImVec2& a, const ImVec2& b, float t)
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static inline ImVec2 ImLerp(const ImVec2& a, const ImVec2& b, const ImVec2& t) { return ImVec2(a.x + (b.x - a.x) * t.x, a.y + (b.y - a.y) * t.y); }
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static inline float ImLength(const ImVec2& lhs) { return sqrt(lhs.x*lhs.x + lhs.y*lhs.y); }
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static int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end); // return input UTF-8 bytes count
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static int ImTextCharToUtf8(char* buf, size_t buf_size, unsigned int in_char); // return output UTF-8 bytes count
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static int ImTextStrToUtf8(char* buf, size_t buf_size, const ImWchar* in_text, const ImWchar* in_text_end); // return output UTF-8 bytes count
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static int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end); // return input UTF-8 bytes count
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static int ImTextStrFromUtf8(ImWchar* buf, size_t buf_size, const char* in_text, const char* in_text_end); // return input UTF-8 bytes count
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static int ImStricmp(const char* str1, const char* str2)
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{
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@ -407,6 +412,14 @@ static char* ImStrdup(const char *str)
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return buff;
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}
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static size_t ImStrlenW(const ImWchar* str)
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{
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size_t n = 0;
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while (*str++)
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n++;
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return n;
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}
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static const char* ImStristr(const char* haystack, const char* needle, const char* needle_end)
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{
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if (!needle_end)
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@ -608,19 +621,20 @@ struct ImGuiDrawContext
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struct ImGuiTextEditState;
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#define STB_TEXTEDIT_STRING ImGuiTextEditState
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#define STB_TEXTEDIT_CHARTYPE char
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#define STB_TEXTEDIT_CHARTYPE ImWchar
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#include "stb_textedit.h"
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// State of the currently focused/edited text input box
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struct ImGuiTextEditState
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{
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char Text[1024]; // edit buffer, we need to persist but can't guarantee the persistence of the user-provided buffer. so own buffer.
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char InitialText[1024]; // backup of end-user buffer at focusing time, to ESC key can do a revert. Also used for arithmetic operations (but could use a pre-parsed float there).
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ImWchar Text[1024]; // edit buffer, we need to persist but can't guarantee the persistence of the user-provided buffer. so we copy into own buffer.
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char InitialText[1024*3+1]; // backup of end-user buffer at the time of focus (in UTF-8, unconverted)
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size_t BufSize; // end-user buffer size, <= 1024 (or increase above)
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float Width; // widget width
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float ScrollX;
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STB_TexteditState StbState;
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float CursorAnim;
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ImVec2 LastCursorPos;
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bool SelectedAllMouseLock;
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ImFont Font;
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float FontSize;
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@ -630,15 +644,16 @@ struct ImGuiTextEditState
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void CursorAnimReset() { CursorAnim = -0.30f; } // After a user-input the cursor stays on for a while without blinking
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bool CursorIsVisible() const { return CursorAnim <= 0.0f || fmodf(CursorAnim, 1.20f) <= 0.80f; } // Blinking
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bool HasSelection() const { return StbState.select_start != StbState.select_end; }
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void SelectAll() { StbState.select_start = 0; StbState.select_end = (int)strlen(Text); StbState.cursor = StbState.select_end; StbState.has_preferred_x = false; }
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void SelectAll() { StbState.select_start = 0; StbState.select_end = (int)ImStrlenW(Text); StbState.cursor = StbState.select_end; StbState.has_preferred_x = false; }
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void OnKeyboardPressed(int key);
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void UpdateScrollOffset();
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ImVec2 CalcDisplayOffsetFromCharIdx(int i) const;
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// Static functions because they are used to render non-focused instances of a text input box
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static const char* GetTextPointerClipped(ImFont font, float font_size, const char* text, float width, ImVec2* out_text_size = NULL);
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static void RenderTextScrolledClipped(ImFont font, float font_size, const char* text, ImVec2 pos_base, float width, float scroll_x);
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static const char* GetTextPointerClippedA(ImFont font, float font_size, const char* text, float width, ImVec2* out_text_size = NULL);
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static const ImWchar* GetTextPointerClippedW(ImFont font, float font_size, const ImWchar* text, float width, ImVec2* out_text_size = NULL);
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static void RenderTextScrolledClipped(ImFont font, float font_size, const char* text, ImVec2 pos_base, float width, float scroll_x);
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};
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struct ImGuiIniData
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@ -1707,7 +1722,7 @@ ImVec2 CalcTextSize(const char* text, const char* text_end, const bool hide_text
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else
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text_display_end = text_end;
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const ImVec2 size = window->Font()->CalcTextSize(window->FontSize(), 0, text, text_display_end, NULL);
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const ImVec2 size = window->Font()->CalcTextSizeA(window->FontSize(), 0, text, text_display_end, NULL);
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return size;
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}
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@ -2375,7 +2390,7 @@ void End()
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{
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g.LogClipboard->append("\n");
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if (g.IO.SetClipboardTextFn)
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g.IO.SetClipboardTextFn(g.LogClipboard->begin(), g.LogClipboard->end());
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g.IO.SetClipboardTextFn(g.LogClipboard->begin());
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g.LogClipboard->clear();
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}
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}
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@ -3797,15 +3812,15 @@ bool RadioButton(const char* label, int* v, int v_button)
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}; // namespace ImGui
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// Wrapper for stb_textedit.h to edit text (our wrapper is for: statically sized buffer, single-line, ASCII, fixed-width font)
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int STB_TEXTEDIT_STRINGLEN(const STB_TEXTEDIT_STRING* obj) { return (int)strlen(obj->Text); }
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char STB_TEXTEDIT_GETCHAR(const STB_TEXTEDIT_STRING* obj, int idx) { return (char)obj->Text[idx]; }
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float STB_TEXTEDIT_GETWIDTH(STB_TEXTEDIT_STRING* obj, int line_start_idx, int char_idx) { (void)line_start_idx; return obj->Font->CalcTextSize(obj->FontSize, 0, &obj->Text[char_idx], &obj->Text[char_idx]+1, NULL).x; }
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char STB_TEXTEDIT_KEYTOTEXT(int key) { return key >= 0x10000 ? 0 : (char)key; }
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char STB_TEXTEDIT_NEWLINE = '\n';
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int STB_TEXTEDIT_STRINGLEN(const STB_TEXTEDIT_STRING* obj) { return (int)ImStrlenW(obj->Text); }
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ImWchar STB_TEXTEDIT_GETCHAR(const STB_TEXTEDIT_STRING* obj, int idx) { return obj->Text[idx]; }
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float STB_TEXTEDIT_GETWIDTH(STB_TEXTEDIT_STRING* obj, int line_start_idx, int char_idx) { (void)line_start_idx; return obj->Font->CalcTextSizeW(obj->FontSize, 0, &obj->Text[char_idx], &obj->Text[char_idx]+1, NULL).x; }
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int STB_TEXTEDIT_KEYTOTEXT(int key) { return key >= 0x10000 ? 0 : key; }
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ImWchar STB_TEXTEDIT_NEWLINE = '\n';
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void STB_TEXTEDIT_LAYOUTROW(StbTexteditRow* r, STB_TEXTEDIT_STRING* obj, int line_start_idx)
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{
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const char* text_remaining = NULL;
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const ImVec2 size = obj->Font->CalcTextSize(obj->FontSize, FLT_MAX, obj->Text + line_start_idx, NULL, &text_remaining);
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const ImWchar* text_remaining = NULL;
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const ImVec2 size = obj->Font->CalcTextSizeW(obj->FontSize, FLT_MAX, obj->Text + line_start_idx, NULL, &text_remaining);
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r->x0 = 0.0f;
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r->x1 = size.x;
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r->baseline_y_delta = size.y;
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@ -3814,22 +3829,22 @@ void STB_TEXTEDIT_LAYOUTROW(StbTexteditRow* r, STB_TEXTEDIT_STRING* obj, int
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r->num_chars = (int)(text_remaining - (obj->Text + line_start_idx));
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}
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static bool is_white(char c) { return c==0 || c==' ' || c=='\t' || c=='\r' || c=='\n'; }
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static bool is_separator(char c) { return c==',' || c==';' || c=='(' || c==')' || c=='{' || c=='}' || c=='[' || c==']' || c=='|'; }
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static bool is_white(unsigned int c) { return c==0 || c==' ' || c=='\t' || c=='\r' || c=='\n'; }
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static bool is_separator(unsigned int c) { return c==',' || c==';' || c=='(' || c==')' || c=='{' || c=='}' || c=='[' || c==']' || c=='|'; }
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#define STB_TEXTEDIT_IS_SPACE(c) (is_white(c) || is_separator(c))
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void STB_TEXTEDIT_DELETECHARS(STB_TEXTEDIT_STRING* obj, int idx, int n) { char* dst = obj->Text+idx; const char* src = obj->Text+idx+n; while (char c = *src++) *dst++ = c; *dst = '\0'; }
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#define STB_TEXTEDIT_IS_SPACE(c) (is_white((unsigned int)c) || is_separator((unsigned int)c))
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void STB_TEXTEDIT_DELETECHARS(STB_TEXTEDIT_STRING* obj, int idx, int n) { ImWchar* dst = obj->Text+idx; const ImWchar* src = obj->Text+idx+n; while (ImWchar c = *src++) *dst++ = c; *dst = '\0'; }
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bool STB_TEXTEDIT_INSERTCHARS(STB_TEXTEDIT_STRING* obj, int idx, const char* new_text, int new_text_len)
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bool STB_TEXTEDIT_INSERTCHARS(STB_TEXTEDIT_STRING* obj, int idx, const ImWchar* new_text, int new_text_len)
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{
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char* buf_end = obj->Text + obj->BufSize;
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const size_t text_len = strlen(obj->Text);
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ImWchar* buf_end = obj->Text + obj->BufSize;
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const size_t text_len = ImStrlenW(obj->Text);
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if (new_text_len > buf_end - (obj->Text + text_len + 1))
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return false;
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memmove(obj->Text + (size_t)idx + new_text_len, obj->Text + (size_t)idx, text_len - (size_t)idx);
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memcpy(obj->Text + (size_t)idx, new_text, (size_t)new_text_len);
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memmove(obj->Text + (size_t)idx + new_text_len, obj->Text + (size_t)idx, (text_len - (size_t)idx) * sizeof(ImWchar));
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memcpy(obj->Text + (size_t)idx, new_text, (size_t)new_text_len * sizeof(ImWchar));
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obj->Text[text_len + (size_t)new_text_len] = 0;
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return true;
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@ -3867,7 +3882,7 @@ void ImGuiTextEditState::UpdateScrollOffset()
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{
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// Scroll in chunks of quarter width
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const float scroll_x_increment = Width * 0.25f;
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const float cursor_offset_x = Font->CalcTextSize(FontSize, 0, Text, Text+StbState.cursor, NULL).x;
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const float cursor_offset_x = Font->CalcTextSizeW(FontSize, 0, Text, Text+StbState.cursor, NULL).x;
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if (ScrollX > cursor_offset_x)
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ScrollX = ImMax(0.0f, cursor_offset_x - scroll_x_increment);
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else if (ScrollX < cursor_offset_x - Width)
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@ -3876,22 +3891,35 @@ void ImGuiTextEditState::UpdateScrollOffset()
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ImVec2 ImGuiTextEditState::CalcDisplayOffsetFromCharIdx(int i) const
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{
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const char* text_start = GetTextPointerClipped(Font, FontSize, Text, ScrollX, NULL);
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const char* text_end = (Text+i >= text_start) ? Text+i : text_start; // Clip if requested character is outside of display
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const ImWchar* text_start = GetTextPointerClippedW(Font, FontSize, Text, ScrollX, NULL);
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const ImWchar* text_end = (Text+i >= text_start) ? Text+i : text_start; // Clip if requested character is outside of display
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IM_ASSERT(text_end >= text_start);
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const ImVec2 offset = Font->CalcTextSize(FontSize, Width, text_start, text_end, NULL);
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const ImVec2 offset = Font->CalcTextSizeW(FontSize, Width, text_start, text_end, NULL);
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return offset;
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}
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// [Static]
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const char* ImGuiTextEditState::GetTextPointerClipped(ImFont font, float font_size, const char* text, float width, ImVec2* out_text_size)
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const char* ImGuiTextEditState::GetTextPointerClippedA(ImFont font, float font_size, const char* text, float width, ImVec2* out_text_size)
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{
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if (width <= 0.0f)
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return text;
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const char* text_clipped_end = NULL;
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const ImVec2 text_size = font->CalcTextSize(font_size, width, text, NULL, &text_clipped_end);
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const ImVec2 text_size = font->CalcTextSizeA(font_size, width, text, NULL, &text_clipped_end);
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if (out_text_size)
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*out_text_size = text_size;
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return text_clipped_end;
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}
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// [Static]
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const ImWchar* ImGuiTextEditState::GetTextPointerClippedW(ImFont font, float font_size, const ImWchar* text, float width, ImVec2* out_text_size)
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{
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if (width <= 0.0f)
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return text;
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const ImWchar* text_clipped_end = NULL;
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const ImVec2 text_size = font->CalcTextSizeW(font_size, width, text, NULL, &text_clipped_end);
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if (out_text_size)
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*out_text_size = text_size;
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return text_clipped_end;
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@ -3902,8 +3930,8 @@ void ImGuiTextEditState::RenderTextScrolledClipped(ImFont font, float font_size,
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{
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// NB- We start drawing at character boundary
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ImVec2 text_size;
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const char* text_start = GetTextPointerClipped(font, font_size, buf, scroll_x, NULL);
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const char* text_end = GetTextPointerClipped(font, font_size, text_start, width, &text_size);
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const char* text_start = GetTextPointerClippedA(font, font_size, buf, scroll_x, NULL);
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const char* text_end = GetTextPointerClippedA(font, font_size, text_start, width, &text_size);
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// Draw a little clip symbol if we've got text on either left or right of the box
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const char symbol_c = '~';
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@ -4030,12 +4058,14 @@ bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlag
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if (g.ActiveId != id)
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{
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// Start edition
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strcpy(edit_state.Text, buf);
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strcpy(edit_state.InitialText, buf);
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// Take a copy of the initial buffer value (both in original UTF-8 format and converted to wchar)
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ImFormatString(edit_state.InitialText, IM_ARRAYSIZE(edit_state.InitialText), "%s", buf);
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ImTextStrFromUtf8(edit_state.Text, IM_ARRAYSIZE(edit_state.Text), buf, NULL);
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edit_state.ScrollX = 0.0f;
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edit_state.Width = w;
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stb_textedit_initialize_state(&edit_state.StbState, true);
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edit_state.CursorAnimReset();
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edit_state.LastCursorPos = ImVec2(-1.f,-1.f);
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if (tab_focus_requested || is_ctrl_down)
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select_all = true;
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@ -4054,7 +4084,8 @@ bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlag
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bool value_changed = false;
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bool cancel_edit = false;
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bool enter_pressed = false;
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if (g.ActiveId == id)
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static char text_tmp_utf8[IM_ARRAYSIZE(edit_state.InitialText)];
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if (g.ActiveId == id)
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{
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// Edit in progress
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edit_state.BufSize = buf_size < IM_ARRAYSIZE(edit_state.Text) ? buf_size : IM_ARRAYSIZE(edit_state.Text);
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@ -4098,40 +4129,45 @@ bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlag
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else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_Z)) edit_state.OnKeyboardPressed(STB_TEXTEDIT_K_UNDO); // I don't want to use shortcuts but we should probably have an Input-catch stack
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else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_Y)) edit_state.OnKeyboardPressed(STB_TEXTEDIT_K_REDO);
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else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_A)) edit_state.SelectAll();
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else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_X))
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else if (is_ctrl_down && (IsKeyPressedMap(ImGuiKey_X) || IsKeyPressedMap(ImGuiKey_C)))
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{
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if (!edit_state.HasSelection())
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// Cut, Copy
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const bool cut = IsKeyPressedMap(ImGuiKey_X);
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if (cut && !edit_state.HasSelection())
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edit_state.SelectAll();
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const int ib = ImMin(edit_state.StbState.select_start, edit_state.StbState.select_end);
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const int ie = ImMax(edit_state.StbState.select_start, edit_state.StbState.select_end);
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if (g.IO.SetClipboardTextFn)
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g.IO.SetClipboardTextFn(edit_state.Text+ib, edit_state.Text+ie);
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stb_textedit_cut(&edit_state, &edit_state.StbState);
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}
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else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_C))
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{
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const int ib = edit_state.HasSelection() ? ImMin(edit_state.StbState.select_start, edit_state.StbState.select_end) : 0;
|
||||
const int ie = edit_state.HasSelection() ? ImMax(edit_state.StbState.select_start, edit_state.StbState.select_end) : (int)strlen(edit_state.Text);
|
||||
if (g.IO.SetClipboardTextFn)
|
||||
g.IO.SetClipboardTextFn(edit_state.Text+ib, edit_state.Text+ie);
|
||||
{
|
||||
const int ib = edit_state.HasSelection() ? ImMin(edit_state.StbState.select_start, edit_state.StbState.select_end) : 0;
|
||||
const int ie = edit_state.HasSelection() ? ImMax(edit_state.StbState.select_start, edit_state.StbState.select_end) : (int)ImStrlenW(edit_state.Text);
|
||||
ImTextStrToUtf8(text_tmp_utf8, IM_ARRAYSIZE(text_tmp_utf8), edit_state.Text+ib, edit_state.Text+ie);
|
||||
g.IO.SetClipboardTextFn(text_tmp_utf8);
|
||||
}
|
||||
|
||||
if (cut)
|
||||
stb_textedit_cut(&edit_state, &edit_state.StbState);
|
||||
}
|
||||
else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_V))
|
||||
{
|
||||
// Paste
|
||||
if (g.IO.GetClipboardTextFn)
|
||||
{
|
||||
if (const char* clipboard = g.IO.GetClipboardTextFn())
|
||||
{
|
||||
// Remove new-line from pasted buffer
|
||||
size_t clipboard_len = strlen(clipboard);
|
||||
char* clipboard_filtered = (char*)ImGui::MemAlloc(clipboard_len+1);
|
||||
ImWchar* clipboard_filtered = (ImWchar*)ImGui::MemAlloc((clipboard_len+1) * sizeof(ImWchar));
|
||||
int clipboard_filtered_len = 0;
|
||||
for (int i = 0; clipboard[i]; i++)
|
||||
for (const char* s = clipboard; *s; )
|
||||
{
|
||||
const char c = clipboard[i];
|
||||
unsigned int c;
|
||||
const int bytes_count = ImTextCharFromUtf8(&c, s, NULL);
|
||||
if (bytes_count <= 0)
|
||||
break;
|
||||
s += bytes_count;
|
||||
if (c == '\n' || c == '\r')
|
||||
continue;
|
||||
clipboard_filtered[clipboard_filtered_len++] = clipboard[i];
|
||||
clipboard_filtered[clipboard_filtered_len++] = c;
|
||||
}
|
||||
clipboard_filtered[clipboard_filtered_len] = 0;
|
||||
stb_textedit_paste(&edit_state, &edit_state.StbState, clipboard_filtered, clipboard_filtered_len);
|
||||
@ -4144,11 +4180,11 @@ bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlag
|
||||
// Text input
|
||||
for (int n = 0; n < IM_ARRAYSIZE(g.IO.InputCharacters) && g.IO.InputCharacters[n]; n++)
|
||||
{
|
||||
const char c = g.IO.InputCharacters[n];
|
||||
const ImWchar c = g.IO.InputCharacters[n];
|
||||
if (c)
|
||||
{
|
||||
// Filter
|
||||
if (!isprint(c) && c != ' ')
|
||||
if (c < 256 && !isprint((char)(c & 0xFF)) && c != ' ')
|
||||
continue;
|
||||
if (flags & ImGuiInputTextFlags_CharsDecimal)
|
||||
if (!(c >= '0' && c <= '9') && (c != '.') && (c != '-') && (c != '+') && (c != '*') && (c != '/'))
|
||||
@ -4175,9 +4211,13 @@ bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlag
|
||||
else
|
||||
{
|
||||
// Apply new value immediately - copy modified buffer back
|
||||
if (strcmp(edit_state.Text, buf) != 0)
|
||||
// Note that as soon as we can focus into the input box, the in-widget value gets priority over any underlying modification of the input buffer
|
||||
// FIXME: We actually always render 'buf' in RenderTextScrolledClipped
|
||||
// FIXME-OPT: CPU waste to do this everytime the widget is active, should mark dirty state from the textedit callbacks
|
||||
ImTextStrToUtf8(text_tmp_utf8, IM_ARRAYSIZE(text_tmp_utf8), edit_state.Text, NULL);
|
||||
if (strcmp(text_tmp_utf8, buf) != 0)
|
||||
{
|
||||
ImFormatString(buf, buf_size, "%s", edit_state.Text);
|
||||
ImFormatString(buf, buf_size, "%s", text_tmp_utf8);
|
||||
value_changed = true;
|
||||
}
|
||||
}
|
||||
@ -4206,12 +4246,17 @@ bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlag
|
||||
|
||||
if (g.ActiveId == id)
|
||||
{
|
||||
const ImVec2 cursor_pos = frame_bb.Min + style.FramePadding + edit_state.CalcDisplayOffsetFromCharIdx(edit_state.StbState.cursor);
|
||||
|
||||
// Draw blinking cursor
|
||||
if (g.InputTextState.CursorIsVisible())
|
||||
{
|
||||
const ImVec2 cursor_pos = frame_bb.Min + style.FramePadding + edit_state.CalcDisplayOffsetFromCharIdx(edit_state.StbState.cursor);
|
||||
window->DrawList->AddRect(cursor_pos - font_off_up + ImVec2(0,2), cursor_pos + font_off_dn - ImVec2(0,3), window->Color(ImGuiCol_Text));
|
||||
}
|
||||
|
||||
// Notify OS of text input position
|
||||
if (io.ImeSetInputScreenPosFn && ImLength(edit_state.LastCursorPos - cursor_pos) > 0.01f)
|
||||
io.ImeSetInputScreenPosFn((int)cursor_pos.x - 1, (int)(cursor_pos.y - window->FontSize())); // -1 x offset so that Windows IME can cover our cursor. Bit of an extra nicety.
|
||||
|
||||
edit_state.LastCursorPos = cursor_pos;
|
||||
}
|
||||
|
||||
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
|
||||
@ -5450,7 +5495,80 @@ static int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const
|
||||
return 0;
|
||||
}
|
||||
|
||||
ImVec2 ImBitmapFont::CalcTextSize(float size, float max_width, const char* text_begin, const char* text_end, const char** remaining) const
|
||||
static int ImTextStrFromUtf8(ImWchar* buf, size_t buf_size, const char* in_text, const char* in_text_end)
|
||||
{
|
||||
ImWchar* buf_out = buf;
|
||||
ImWchar* buf_end = buf + buf_size;
|
||||
while (buf_out < buf_end-1 && (!in_text_end || in_text < in_text_end) && *in_text)
|
||||
{
|
||||
unsigned int c;
|
||||
in_text += ImTextCharFromUtf8(&c, in_text, in_text_end);
|
||||
if (c < 0x10000) // FIXME: Losing characters that don't fit in 2 bytes
|
||||
*buf_out++ = (ImWchar)c;
|
||||
}
|
||||
*buf_out = 0;
|
||||
return buf_out - buf;
|
||||
}
|
||||
|
||||
// Based on stb_to_utf8() from github.com/nothings/stb/
|
||||
static int ImTextCharToUtf8(char* buf, size_t buf_size, unsigned int c)
|
||||
{
|
||||
if (c)
|
||||
{
|
||||
int i = 0;
|
||||
int n = (size_t)buf_size;
|
||||
if (c < 0x80)
|
||||
{
|
||||
if (i+1 > n) return 0;
|
||||
buf[i++] = (char)c;
|
||||
return 1;
|
||||
}
|
||||
else if (c < 0x800)
|
||||
{
|
||||
if (i+2 > n) return 0;
|
||||
buf[i++] = 0xc0 + (c >> 6);
|
||||
buf[i++] = 0x80 + (c & 0x3f);
|
||||
return 2;
|
||||
}
|
||||
else if (c >= 0xdc00 && c < 0xe000)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
else if (c >= 0xd800 && c < 0xdc00)
|
||||
{
|
||||
if (i+4 > n) return NULL;
|
||||
buf[i++] = 0xf0 + (c >> 18);
|
||||
buf[i++] = 0x80 + ((c >> 12) & 0x3f);
|
||||
buf[i++] = 0x80 + ((c >> 6) & 0x3f);
|
||||
buf[i++] = 0x80 + ((c ) & 0x3f);
|
||||
return 4;
|
||||
}
|
||||
//else if (c < 0x10000)
|
||||
{
|
||||
if (i+3 > n) return 0;
|
||||
buf[i++] = 0xe0 + (c >> 12);
|
||||
buf[i++] = 0x80 + ((c>> 6) & 0x3f);
|
||||
buf[i++] = 0x80 + ((c ) & 0x3f);
|
||||
return 3;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ImTextStrToUtf8(char* buf, size_t buf_size, const ImWchar* in_text, const ImWchar* in_text_end)
|
||||
{
|
||||
char* buf_out = buf;
|
||||
const char* buf_end = buf + buf_size;
|
||||
while (buf_out < buf_end-1 && (!in_text_end || in_text < in_text_end) && *in_text)
|
||||
{
|
||||
buf_out += ImTextCharToUtf8(buf_out, buf_end-buf_out-1, (unsigned int)*in_text);
|
||||
in_text++;
|
||||
}
|
||||
*buf_out = 0;
|
||||
return buf_out - buf;
|
||||
}
|
||||
|
||||
ImVec2 ImBitmapFont::CalcTextSizeA(float size, float max_width, const char* text_begin, const char* text_end, const char** remaining) const
|
||||
{
|
||||
if (max_width == 0.0f)
|
||||
max_width = FLT_MAX;
|
||||
@ -5469,8 +5587,6 @@ ImVec2 ImBitmapFont::CalcTextSize(float size, float max_width, const char* text_
|
||||
unsigned int c;
|
||||
const int bytes_count = ImTextCharFromUtf8(&c, s, text_end);
|
||||
s += bytes_count > 0 ? bytes_count : 1; // Handle decoding failure by skipping to next byte
|
||||
if (c > 0x10000)
|
||||
continue;
|
||||
|
||||
if (c == '\n')
|
||||
{
|
||||
@ -5489,6 +5605,61 @@ ImVec2 ImBitmapFont::CalcTextSize(float size, float max_width, const char* text_
|
||||
}
|
||||
else if (c == '\t')
|
||||
{
|
||||
// FIXME: Better TAB handling needed.
|
||||
if (const FntGlyph* glyph = FindGlyph((unsigned short)' '))
|
||||
line_width += (glyph->XAdvance + Info->SpacingHoriz) * 4 * scale;
|
||||
}
|
||||
}
|
||||
|
||||
if (line_width > 0 || text_size.y == 0.0f)
|
||||
{
|
||||
if (text_size.x < line_width)
|
||||
text_size.x = line_width;
|
||||
text_size.y += line_height;
|
||||
}
|
||||
|
||||
if (remaining)
|
||||
*remaining = s;
|
||||
|
||||
return text_size;
|
||||
}
|
||||
|
||||
ImVec2 ImBitmapFont::CalcTextSizeW(float size, float max_width, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining) const
|
||||
{
|
||||
if (max_width == 0.0f)
|
||||
max_width = FLT_MAX;
|
||||
if (!text_end)
|
||||
text_end = text_begin + ImStrlenW(text_begin);
|
||||
|
||||
const float scale = size / (float)Info->FontSize;
|
||||
const float line_height = (float)Info->FontSize * scale;
|
||||
|
||||
ImVec2 text_size = ImVec2(0,0);
|
||||
float line_width = 0.0f;
|
||||
|
||||
const ImWchar* s = text_begin;
|
||||
while (s < text_end)
|
||||
{
|
||||
const unsigned int c = (unsigned int)(*s++);
|
||||
|
||||
if (c == '\n')
|
||||
{
|
||||
if (text_size.x < line_width)
|
||||
text_size.x = line_width;
|
||||
text_size.y += line_height;
|
||||
line_width = 0;
|
||||
}
|
||||
else if (const FntGlyph* glyph = FindGlyph((unsigned short)c))
|
||||
{
|
||||
const float char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
|
||||
//const float char_extend = (glyph->XOffset + glyph->Width * scale);
|
||||
if (line_width + char_width >= max_width)
|
||||
break;
|
||||
line_width += char_width;
|
||||
}
|
||||
else if (c == '\t')
|
||||
{
|
||||
// FIXME: Better TAB handling needed.
|
||||
if (const FntGlyph* glyph = FindGlyph((unsigned short)' '))
|
||||
line_width += (glyph->XAdvance + Info->SpacingHoriz) * 4 * scale;
|
||||
}
|
||||
@ -5633,12 +5804,11 @@ static const char* GetClipboardTextFn_DefaultImpl()
|
||||
}
|
||||
|
||||
// Win32 API clipboard implementation
|
||||
static void SetClipboardTextFn_DefaultImpl(const char* text, const char* text_end)
|
||||
static void SetClipboardTextFn_DefaultImpl(const char* text)
|
||||
{
|
||||
if (!OpenClipboard(NULL))
|
||||
return;
|
||||
if (!text_end)
|
||||
text_end = text + strlen(text);
|
||||
const char* text_end = text + strlen(text);
|
||||
const int buf_length = (int)(text_end - text) + 1;
|
||||
HGLOBAL buf_handle = GlobalAlloc(GMEM_MOVEABLE, buf_length * sizeof(char));
|
||||
if (buf_handle == NULL)
|
||||
@ -5661,15 +5831,14 @@ static const char* GetClipboardTextFn_DefaultImpl()
|
||||
}
|
||||
|
||||
// Local ImGui-only clipboard implementation, if user hasn't defined better clipboard handlers
|
||||
static void SetClipboardTextFn_DefaultImpl(const char* text, const char* text_end)
|
||||
static void SetClipboardTextFn_DefaultImpl(const char* text)
|
||||
{
|
||||
if (GImGui.PrivateClipboard)
|
||||
{
|
||||
ImGui::MemFree(GImGui.PrivateClipboard);
|
||||
GImGui.PrivateClipboard = NULL;
|
||||
}
|
||||
if (!text_end)
|
||||
text_end = text + strlen(text);
|
||||
const char* text_end = text + strlen(text);
|
||||
GImGui.PrivateClipboard = (char*)ImGui::MemAlloc((size_t)(text_end - text) + 1);
|
||||
memcpy(GImGui.PrivateClipboard, text, (size_t)(text_end - text));
|
||||
GImGui.PrivateClipboard[(size_t)(text_end - text)] = 0;
|
||||
|
||||
53
imgui.h
53
imgui.h
@ -1,4 +1,4 @@
|
||||
// ImGui library v1.12
|
||||
// ImGui library v1.12+
|
||||
// See .cpp file for commentary.
|
||||
// See ImGui::ShowTestWindow() for sample code.
|
||||
// Read 'Programmer guide' in .cpp for notes on how to setup ImGui in your codebase.
|
||||
@ -402,7 +402,10 @@ struct ImGuiStyle
|
||||
// Read 'Programmer guide' section in .cpp file for general usage.
|
||||
struct ImGuiIO
|
||||
{
|
||||
//------------------------------------------------------------------
|
||||
// Settings (fill once) // Default value:
|
||||
//------------------------------------------------------------------
|
||||
|
||||
ImVec2 DisplaySize; // <unset> // Display size, in pixels. For clamping windows positions.
|
||||
float DeltaTime; // = 1.0f/60.0f // Time elapsed since last frame, in seconds.
|
||||
float IniSavingRate; // = 5.0f // Maximum time between saving .ini file, in seconds. Set to a negative value to disable .ini saving.
|
||||
@ -418,40 +421,53 @@ struct ImGuiIO
|
||||
bool FontAllowUserScaling; // = false // Set to allow scaling text with CTRL+Wheel.
|
||||
float PixelCenterOffset; // = 0.0f // Try to set to 0.5f or 0.375f if rendering is blurry
|
||||
|
||||
// Settings - Rendering function (REQUIRED)
|
||||
// See example code if you are unsure of how to implement this.
|
||||
void (*RenderDrawListsFn)(ImDrawList** const draw_lists, int count);
|
||||
//------------------------------------------------------------------
|
||||
// User Functions
|
||||
//------------------------------------------------------------------
|
||||
|
||||
// Settings - Clipboard Support
|
||||
// Override to provide your clipboard handlers.
|
||||
// On Windows architecture, defaults to use the native Win32 clipboard, otherwise default to use a ImGui private clipboard.
|
||||
// NB- for SetClipboardTextFn, the string is *NOT* zero-terminated at 'text_end'
|
||||
const char* (*GetClipboardTextFn)();
|
||||
void (*SetClipboardTextFn)(const char* text, const char* text_end);
|
||||
|
||||
// Settings - Memory allocation
|
||||
// Default to posix malloc/realloc/free functions.
|
||||
// REQUIRED: rendering function.
|
||||
// See example code if you are unsure of how to implement this.
|
||||
void (*RenderDrawListsFn)(ImDrawList** const draw_lists, int count);
|
||||
|
||||
// Optional: access OS clipboard (default to use native Win32 clipboard on Windows, otherwise use a ImGui private clipboard)
|
||||
// Override to access OS clipboard on other architectures.
|
||||
const char* (*GetClipboardTextFn)();
|
||||
void (*SetClipboardTextFn)(const char* text);
|
||||
|
||||
// Optional: override memory allocations (default to posix malloc/realloc/free)
|
||||
void* (*MemAllocFn)(size_t sz);
|
||||
void* (*MemReallocFn)(void* ptr, size_t sz);
|
||||
void (*MemFreeFn)(void* ptr);
|
||||
|
||||
// Optional: notify OS Input Method Editor of text input position (e.g. when using Japanese/Chinese inputs, otherwise this isn't needed)
|
||||
void (*ImeSetInputScreenPosFn)(int x, int y);
|
||||
|
||||
//------------------------------------------------------------------
|
||||
// Input - Fill before calling NewFrame()
|
||||
//------------------------------------------------------------------
|
||||
|
||||
ImVec2 MousePos; // Mouse position, in pixels (set to -1,-1 if no mouse / on another screen, etc.)
|
||||
bool MouseDown[5]; // Mouse buttons. ImGui itself only uses button 0 (left button) but you can use others as storage for convenience.
|
||||
int MouseWheel; // Mouse wheel: -1,0,+1
|
||||
bool KeyCtrl; // Keyboard modifier pressed: Control
|
||||
bool KeyShift; // Keyboard modifier pressed: Shift
|
||||
bool KeysDown[512]; // Keyboard keys that are pressed (in whatever order user naturally has access to keyboard data)
|
||||
char InputCharacters[16]; // List of characters input (translated by user from keypress+keyboard state). Fill using AddInputCharacter() helper.
|
||||
ImWchar InputCharacters[16]; // List of characters input (translated by user from keypress+keyboard state). Fill using AddInputCharacter() helper.
|
||||
|
||||
// Function
|
||||
void AddInputCharacter(ImWchar); // Helper to add a new character into InputCharacters[]
|
||||
|
||||
//------------------------------------------------------------------
|
||||
// Output - Retrieve after calling NewFrame(), you can use them to discard inputs or hide them from the rest of your application
|
||||
//------------------------------------------------------------------
|
||||
|
||||
bool WantCaptureMouse; // Mouse is hovering a window or widget is active (= ImGui will use your mouse input)
|
||||
bool WantCaptureKeyboard; // Widget is active (= ImGui will use your keyboard input)
|
||||
|
||||
// Function
|
||||
void AddInputCharacter(char c); // Helper to add a new character into InputCharacters[]
|
||||
|
||||
//------------------------------------------------------------------
|
||||
// [Internal] ImGui will maintain those fields for you
|
||||
//------------------------------------------------------------------
|
||||
|
||||
ImVec2 MousePosPrev;
|
||||
ImVec2 MouseDelta;
|
||||
bool MouseClicked[5];
|
||||
@ -672,6 +688,7 @@ struct ImBitmapFont
|
||||
float GetFontSize() const { return (float)Info->FontSize; }
|
||||
bool IsLoaded() const { return Info != NULL && Common != NULL && Glyphs != NULL; }
|
||||
|
||||
ImVec2 CalcTextSize(float size, float max_width, const char* text_begin, const char* text_end, const char** remaining = NULL) const;
|
||||
ImVec2 CalcTextSizeA(float size, float max_width, const char* text_begin, const char* text_end, const char** remaining = NULL) const; // utf8
|
||||
ImVec2 CalcTextSizeW(float size, float max_width, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL) const; // wchar
|
||||
void RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, ImDrawVert*& out_vertices) const;
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user