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Added word-wrapping API TextWrapped(), PushTextWrapPos(), PopTextWrapPos()

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Added word-wrapping sample in the test window.
Added IsItemFocused() to tell if last widget is being focused for keyboard input.
This commit is contained in:
omar
2014-11-07 14:45:56 +09:00
parent 74363c5a43
commit 78645a7dba
2 changed files with 396 additions and 138 deletions
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36
imgui.h
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@ -159,13 +159,16 @@ namespace ImGui
void SetKeyboardFocusHere(int offset = 0); // focus keyboard on the next widget. Use 'offset' to access sub components of a multiple component widget.
void SetTreeStateStorage(ImGuiStorage* tree); // replace tree state storage with our own (if you want to manipulate it yourself, typically clear subsection of it).
ImGuiStorage* GetTreeStateStorage();
void PushItemWidth(float item_width);
void PushItemWidth(float item_width); // width of items for the common item+label case. default to ~2/3 of windows width.
void PopItemWidth();
float GetItemWidth();
void PushAllowKeyboardFocus(bool v); // allow focusing using TAB/Shift-TAB, enabled by default but you can disable it for certain widgets.
void PopAllowKeyboardFocus();
void PushStyleColor(ImGuiCol idx, const ImVec4& col);
void PopStyleColor();
void PushTextWrapPos(float wrap_pos_x); // word-wrapping for Text*() commands. < 0.0f: no wrapping; 0.0f: wrap to end of window (or column); > 0.0f: wrap at 'wrap_pos_x' position in window local space.
void PopTextWrapPos();
// Tooltip
void SetTooltip(const char* fmt, ...); // set tooltip under mouse-cursor, typically use with ImGui::IsHovered(). last call wins.
@ -200,10 +203,12 @@ namespace ImGui
// Widgets
void Text(const char* fmt, ...);
void TextV(const char* fmt, va_list args);
void TextColored(const ImVec4& col, const char* fmt, ...); // shortcut to doing PushStyleColor(ImGuiCol_Text, col); Text(fmt, ...); PopStyleColor();
void TextColored(const ImVec4& col, const char* fmt, ...); // shortcut for PushStyleColor(ImGuiCol_Text, col); Text(fmt, ...); PopStyleColor();
void TextColoredV(const ImVec4& col, const char* fmt, va_list args);
void TextUnformatted(const char* text, const char* text_end = NULL); // doesn't require null terminated string if 'text_end' is specified. no copy done to any bounded stack buffer, better for long chunks of text.
void LabelText(const char* label, const char* fmt, ...);
void TextWrapped(const char* fmt, ...); // shortcut for PushTextWrapPos(0.0f); Text(fmt, ...); PopTextWrapPos();
void TextWrappedV(const char* fmt, va_list args);
void TextUnformatted(const char* text, const char* text_end = NULL); // doesn't require null terminated string if 'text_end' is specified. no copy done to any bounded stack buffer, recommended for long chunks of text.
void LabelText(const char* label, const char* fmt, ...); // display text+label aligned the same way as value+label widgets
void LabelTextV(const char* label, const char* fmt, va_list args);
void BulletText(const char* fmt, ...);
void BulletTextV(const char* fmt, va_list args);
@ -265,9 +270,10 @@ namespace ImGui
// Utilities
void SetNewWindowDefaultPos(const ImVec2& pos); // set position of window that do
bool IsHovered(); // was the last item active area hovered by mouse?
bool IsItemFocused(); // was the last item focused for keyboard input?
ImVec2 GetItemBoxMin(); // get bounding box of last item
ImVec2 GetItemBoxMax(); // get bounding box of last item
bool IsClipped(const ImVec2& item_size); // to perform coarse clipping on user's side (as an optimisation)
bool IsClipped(const ImVec2& item_size); // to perform coarse clipping on user's side (as an optimization)
bool IsKeyPressed(int key_index, bool repeat = true); // key_index into the keys_down[512] array, imgui doesn't know the semantic of each entry
bool IsMouseClicked(int button, bool repeat = false);
bool IsMouseDoubleClicked(int button);
@ -280,7 +286,7 @@ namespace ImGui
int GetFrameCount();
const char* GetStyleColorName(ImGuiCol idx);
void GetDefaultFontData(const void** fnt_data, unsigned int* fnt_size, const void** png_data, unsigned int* png_size);
ImVec2 CalcTextSize(const char* text, const char* text_end = NULL, const bool hide_text_after_hash = true);
ImVec2 CalcTextSize(const char* text, const char* text_end = NULL, bool hide_text_after_hash = true, float wrap_width = -1.0f);
} // namespace ImGui
@ -542,6 +548,7 @@ struct ImGuiTextBuffer
ImVector<char> Buf;
ImGuiTextBuffer() { Buf.push_back(0); }
~ImGuiTextBuffer() { clear(); }
const char* begin() const { return Buf.begin(); }
const char* end() const { return Buf.end()-1; }
size_t size() const { return Buf.size()-1; }
@ -619,8 +626,8 @@ struct ImDrawList
void AddTriangleFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, ImU32 col);
void AddCircle(const ImVec2& centre, float radius, ImU32 col, int num_segments = 12);
void AddCircleFilled(const ImVec2& centre, float radius, ImU32 col, int num_segments = 12);
void AddArc(const ImVec2& center, float rad, ImU32 col, int a_min, int a_max, bool tris=false, const ImVec2& third_point_offset = ImVec2(0,0));
void AddText(ImFont font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end);
void AddArc(const ImVec2& center, float rad, ImU32 col, int a_min, int a_max, bool tris = false, const ImVec2& third_point_offset = ImVec2(0,0));
void AddText(ImFont font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width = 0.0f);
};
// Optional bitmap font data loader & renderer into vertices
@ -696,11 +703,16 @@ struct ImBitmapFont
bool LoadFromFile(const char* filename);
void Clear();
void BuildLookupTable();
const FntGlyph * FindGlyph(unsigned short c) const;
const FntGlyph * FindGlyph(unsigned short c, const FntGlyph* fallback = NULL) const;
float GetFontSize() const { return (float)Info->FontSize; }
bool IsLoaded() const { return Info != NULL && Common != NULL && Glyphs != NULL; }
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;
// 'max_width' stops rendering after a certain width (could be turned into a 2d size). FLT_MAX to disable.
// 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
ImVec2 CalcTextSizeA(float size, float max_width, float wrap_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, float wrap_width = 0.0f) const;
private:
const char* CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width, const FntGlyph* fallback_glyph) const;
};