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Moved IO.Font*** options to inside the IO.Font-> structure.. Added IO.FontGlobalScale setting (vs Font->Scale)

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ocornut 2014-11-29 00:02:46 +00:00
parent e27eddfbd2
commit e4a79e9fc8
4 changed files with 112 additions and 92 deletions
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4
examples/opengl_example/main.cpp
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@ -233,11 +233,11 @@ void InitImGui()
IM_ASSERT(tex_data != NULL);
// Automatically find white pixel from the texture we just loaded
// (io.FontTexUvForWhite needs to contains UV coordinates pointing to a white pixel in order to render solid objects)
// (io.Font->TexUvForWhite needs to contains UV coordinates pointing to a white pixel in order to render solid objects)
for (int tex_data_off = 0; tex_data_off < tex_x*tex_y; tex_data_off++)
if (((unsigned int*)tex_data)[tex_data_off] == 0xffffffff)
{
io.FontTexUvForWhite = ImVec2((float)(tex_data_off % tex_x)/(tex_x), (float)(tex_data_off / tex_x)/(tex_y));
io.Font->TexUvForWhite = ImVec2((float)(tex_data_off % tex_x)/(tex_x), (float)(tex_data_off / tex_x)/(tex_y));
break;
}
#endif

22
extra_fonts/README.txt
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@ -48,16 +48,16 @@ Configure bmfont:
(B) Use fonts from external files
You need to set io.FontTexUvForWhite to UV coordinates pointing to a white pixel in the texture.
You need to set io.Font->TexUvForWhite to UV coordinates pointing to a white pixel in the texture.
You can either locate a white pixel manually or use code at runtime to find or write one.
The OpenGL example include sample code to find a white pixel given an uncompressed 32-bits texture:
// Automatically find white pixel from the texture we just loaded
// (io.FontTexUvForWhite needs to contains UV coordinates pointing to a white pixel in order to render solid objects)
// (io.Font->TexUvForWhite needs to contains UV coordinates pointing to a white pixel in order to render solid objects)
for (int tex_data_off = 0; tex_data_off < tex_x*tex_y; tex_data_off++)
if (((unsigned int*)tex_data)[tex_data_off] == 0xffffffff)
{
io.FontTexUvForWhite = ImVec2((float)(tex_data_off % tex_x)/(tex_x), (float)(tex_data_off / tex_x)/(tex_y));
io.Font->TexUvForWhite = ImVec2((float)(tex_data_off % tex_x)/(tex_x), (float)(tex_data_off / tex_x)/(tex_y));
break;
}
@ -69,30 +69,30 @@ Configure bmfont:
io.Font = new ImFont();
io.Font->LoadFromFile("proggy_clean_13.fnt");
IM_ASSERT(io.Font->IsLoaded());
io.FontTexUvForWhite = ImVec2(0.0f/256.0f,0.0f/128);
io.FontYOffset = +1;
io.Font->TexUvForWhite = ImVec2(0.0f/256.0f,0.0f/128);
io.Font->DisplayOffset = ImVec2(0.0f, +1.0f);
// proggy_small_12
io.Font = new ImFont();
io.Font->LoadFromFile("proggy_small_12.fnt");
IM_ASSERT(io.Font->IsLoaded());
io.FontTexUvForWhite = ImVec2(84.0f/256.0f,20.0f/64);
io.FontYOffset = +2;
io.Font->TexUvForWhite = ImVec2(84.0f/256.0f,20.0f/64);
io.Font->DisplayOffset = ImVec2(0.0f, +2.0f);
// proggy_small_14
io.Font = new ImFont();
io.Font->LoadFromFile("proggy_small_14.fnt");
IM_ASSERT(io.Font->IsLoaded());
io.FontTexUvForWhite = ImVec2(84.0f/256.0f,20.0f/64);
io.FontYOffset = +3;
io.Font->TexUvForWhite = ImVec2(84.0f/256.0f,20.0f/64);
io.Font->DisplayOffset = ImVec2(0.0f, +3.0f);
// courier_new_16
io.Font->LoadFromFile("courier_new_16.fnt");
io.FontTexUvForWhite = ImVec2(1.0f/256.0f,4.0f/128);
io.Font->TexUvForWhite = ImVec2(1.0f/256.0f,4.0f/128);
// courier_new_18
io.Font->LoadFromFile("courier_new_18.fnt");
io.FontTexUvForWhite = ImVec2(4.0f/256.0f,5.0f/256);
io.Font->TexUvForWhite = ImVec2(4.0f/256.0f,5.0f/256);
2. Load the matching .PNG data into a texture

73
imgui.cpp
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@ -111,6 +111,7 @@
Occasionally introducing changes that are breaking the API. The breakage are generally minor and easy to fix.
Here is a change-log of API breaking changes, if you are using one of the functions listed, expect to have to fix some code.
- 2014/11/28 (1.17) moved IO.Font*** options to inside the IO.Font-> structure.
- 2014/11/26 (1.17) reworked syntax of IMGUI_ONCE_UPON_A_FRAME helper macro to increase compiler compatibility
- 2014/11/07 (1.15) renamed IsHovered() to IsItemHovered()
- 2014/10/02 (1.14) renamed IMGUI_INCLUDE_IMGUI_USER_CPP to IMGUI_INCLUDE_IMGUI_USER_INL and imgui_user.cpp to imgui_user.inl (more IDE friendly)
@ -128,17 +129,13 @@
- in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
- try adjusting ImGui::GetIO().PixelCenterOffset to 0.5f or 0.375f
- if you can only see text but no solid shapes or lines:
- make sure io.FontTexUvForWhite is set to the texture coordinates of a pure white pixel in your texture.
(this is done for you if you are using the default font)
(ImGui is using this texture coordinate to draw solid objects so text and solid draw calls can be merged into one.)
- if you want to use a different font than the default:
- create bitmap font data using BMFont, make sure that BMFont is exporting the .fnt file in Binary mode.
io.Font = new ImBitmapFont();
io.Font->LoadFromFile("path_to_your_fnt_file.fnt");
- load your texture yourself. texture *MUST* have white pixel at UV coordinate io.FontTexUvForWhite. This is used to draw all solid shapes.
- load your texture yourself. texture *MUST* have white pixel at UV coordinate io.Font->TexUvForWhite. This is used to draw all solid shapes.
- the extra_fonts/ folder provides examples of using external fonts.
- if you can only see text but no solid shapes or lines, make sure io.Font->TexUvForWhite is set to the texture coordinates of a pure white pixel in your texture!
- if you are confused about the meaning or use of ID in ImGui:
- some widgets requires state to be carried over multiple frames (most typically ImGui often wants remember what is the "active" widget).
@ -350,11 +347,8 @@ ImGuiIO::ImGuiIO()
IniFilename = "imgui.ini";
LogFilename = "imgui_log.txt";
Font = NULL;
FontYOffset = 0.0f;
FontTexUvForWhite = ImVec2(0.0f,0.0f);
FontBaseScale = 1.0f;
FontGlobalScale = 1.0f;
FontAllowUserScaling = false;
FontFallbackGlyph = (ImWchar)'?';
PixelCenterOffset = 0.0f;
MousePos = ImVec2(-1,-1);
MousePosPrev = ImVec2(-1,-1);
@ -731,7 +725,8 @@ struct ImGuiState
bool Initialized;
ImGuiIO IO;
ImGuiStyle Style;
float FontSize; // == IO.FontBaseScale * IO.Font->GetFontSize(). Vertical distance between two lines of text, aka == CalcTextSize(" ").y
float FontSize; // == IO.FontGlobalScale * IO.Font->Scale * IO.Font->GetFontSize(). Vertical distance between two lines of text, aka == CalcTextSize(" ").y
ImVec2 FontTexUvForWhite; // == IO.Font->FontTexUvForWhite (cached copy)
float Time;
int FrameCount;
@ -1348,7 +1343,6 @@ void ImGui::NewFrame()
IM_ASSERT(g.IO.DeltaTime > 0.0f);
IM_ASSERT(g.IO.DisplaySize.x > 0.0f && g.IO.DisplaySize.y > 0.0f);
IM_ASSERT(g.IO.RenderDrawListsFn != NULL); // Must be implemented
IM_ASSERT(g.IO.FontBaseScale > 0.0f);
if (!g.Initialized)
{
@ -1368,16 +1362,20 @@ void ImGui::NewFrame()
new(g.IO.Font) ImFont();
g.IO.Font->LoadFromMemory(fnt_data, fnt_size);
IM_ASSERT(g.IO.Font->IsLoaded()); // Font failed to load
g.IO.FontYOffset = +1;
g.IO.Font->DisplayOffset = ImVec2(0.0f, +1.0f);
}
g.Initialized = true;
}
IM_ASSERT(g.IO.Font && g.IO.Font->IsLoaded()); // Font not loaded
IM_ASSERT(g.IO.Font->Scale > 0.0f);
g.FontSize = g.IO.FontGlobalScale * g.IO.Font->GetFontSize() * g.IO.Font->Scale;
g.FontTexUvForWhite = g.IO.Font->TexUvForWhite;
g.IO.Font->FallbackGlyph = g.IO.Font->FindGlyph(g.IO.Font->FallbackChar);
g.Time += g.IO.DeltaTime;
g.FrameCount += 1;
g.Tooltip[0] = '\0';
g.FontSize = g.IO.FontBaseScale * g.IO.Font->GetFontSize();
// Update inputs state
if (g.IO.MousePos.x < 0 && g.IO.MousePos.y < 0)
@ -5454,7 +5452,7 @@ void ImDrawList::AddVtx(const ImVec2& pos, ImU32 col)
{
vtx_write->pos = pos;
vtx_write->col = col;
vtx_write->uv = GImGui.IO.FontTexUvForWhite;
vtx_write->uv = GImGui.FontTexUvForWhite;
vtx_write++;
}
@ -5686,6 +5684,11 @@ void ImDrawList::AddText(ImFont* font, float font_size, const ImVec2& pos, ImU32
ImFont::ImFont()
{
Scale = 1.0f;
DisplayOffset = ImVec2(0.0f,0.0f);
TexUvForWhite = ImVec2(0.0f,0.0f);
FallbackChar = (ImWchar)'?';
Data = NULL;
DataSize = 0;
DataOwned = false;
@ -5695,7 +5698,6 @@ ImFont::ImFont()
GlyphsCount = 0;
Kerning = NULL;
KerningCount = 0;
TabCount = 4;
}
void ImFont::Clear()
@ -5790,10 +5792,11 @@ bool ImFont::LoadFromMemory(const void* data, size_t data_size)
Glyphs = (FntGlyph*)p;
GlyphsCount = block_size / sizeof(FntGlyph);
break;
default:
case 5:
IM_ASSERT(Kerning == NULL && KerningCount == 0);
Kerning = (FntKerning*)p;
KerningCount = block_size / sizeof(FntKerning);
default:
break;
}
p += block_size;
@ -5987,7 +5990,7 @@ static int ImTextCountUtf8BytesFromWchar(const ImWchar* in_text, const ImWchar*
return bytes_count;
}
const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width, const FntGlyph* fallback_glyph) const
const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
{
// Simple word-wrapping for English, not full-featured. Please submit failing cases!
// FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
@ -6042,7 +6045,7 @@ const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const c
}
else
{
if (const FntGlyph* glyph = FindGlyph((unsigned short)c, fallback_glyph))
if (const FntGlyph* glyph = FindGlyph((unsigned short)c, FallbackGlyph))
char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
}
@ -6096,7 +6099,6 @@ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, cons
const float scale = size / (float)Info->FontSize;
const float line_height = (float)Info->FontSize * scale;
const FntGlyph* fallback_glyph = FindGlyph(GImGui.IO.FontFallbackGlyph);
ImVec2 text_size = ImVec2(0,0);
float line_width = 0.0f;
@ -6112,7 +6114,7 @@ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, cons
// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
if (!word_wrap_eol)
{
word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width, fallback_glyph);
word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
word_wrap_eol++; // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
}
@ -6156,7 +6158,7 @@ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, cons
if (const FntGlyph* glyph = FindGlyph((unsigned short)' '))
char_width = (glyph->XAdvance + Info->SpacingHoriz) * 4 * scale;
}
else if (const FntGlyph* glyph = FindGlyph((unsigned short)c, fallback_glyph))
else if (const FntGlyph* glyph = FindGlyph((unsigned short)c, FallbackGlyph))
{
char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
}
@ -6187,7 +6189,6 @@ ImVec2 ImFont::CalcTextSizeW(float size, float max_width, const ImWchar* text_be
const float scale = size / (float)Info->FontSize;
const float line_height = (float)Info->FontSize * scale;
const FntGlyph* fallback_glyph = FindGlyph(GImGui.IO.FontFallbackGlyph);
ImVec2 text_size = ImVec2(0,0);
float line_width = 0.0f;
@ -6215,7 +6216,7 @@ ImVec2 ImFont::CalcTextSizeW(float size, float max_width, const ImWchar* text_be
}
else
{
if (const FntGlyph* glyph = FindGlyph((unsigned short)c, fallback_glyph))
if (const FntGlyph* glyph = FindGlyph((unsigned short)c, FallbackGlyph))
char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
}
@ -6248,11 +6249,10 @@ void ImFont::RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_re
const float tex_scale_x = 1.0f / (float)Common->ScaleW;
const float tex_scale_y = 1.0f / (float)(Common->ScaleH);
const float outline = (float)Info->Outline;
const FntGlyph* fallback_glyph = FindGlyph(GImGui.IO.FontFallbackGlyph);
// Align to be pixel perfect
pos.x = (float)(int)pos.x;
pos.y = (float)(int)pos.y + GImGui.IO.FontYOffset;
pos.x = (float)(int)pos.x + DisplayOffset.x;
pos.y = (float)(int)pos.y + DisplayOffset.y;
const bool word_wrap_enabled = (wrap_width > 0.0f);
const char* word_wrap_eol = NULL;
@ -6269,7 +6269,7 @@ void ImFont::RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_re
// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
if (!word_wrap_eol)
{
word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x), fallback_glyph);
word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
word_wrap_eol++; // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
}
@ -6309,7 +6309,7 @@ void ImFont::RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_re
if (const FntGlyph* glyph = FindGlyph((unsigned short)' '))
char_width += (glyph->XAdvance + Info->SpacingHoriz) * 4 * scale;
}
else if (const FntGlyph* glyph = FindGlyph((unsigned short)c, fallback_glyph))
else if (const FntGlyph* glyph = FindGlyph((unsigned short)c, FallbackGlyph))
{
char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
if (c != ' ')
@ -6525,6 +6525,20 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
ImGui::TreePop();
}
/*
// Font scaling options
// Note that those are not actually part of the style.
if (ImGui::TreeNode("Font"))
{
static float window_scale = 1.0f;
ImGui::SliderFloat("window scale", &window_scale, 0.3f, 2.0f, "%.1f"); // scale only this window
ImGui::SliderFloat("font scale", &ImGui::GetIO().Font->Scale, 0.3f, 2.0f, "%.1f"); // scale only this font
ImGui::SliderFloat("global scale", &ImGui::GetIO().FontGlobalScale, 0.3f, 2.0f, "%.1f"); // scale everything
ImGui::SetWindowFontScale(window_scale);
ImGui::TreePop();
}
*/
ImGui::PopItemWidth();
}
@ -6569,6 +6583,7 @@ void ImGui::ShowTestWindow(bool* open)
ImGui::Checkbox("no move", &no_move); ImGui::SameLine(150);
ImGui::Checkbox("no scrollbar", &no_scrollbar);
ImGui::SliderFloat("fill alpha", &fill_alpha, 0.0f, 1.0f);
if (ImGui::TreeNode("Style Editor"))
{
ImGui::ShowStyleEditor();

105
imgui.h
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@ -30,8 +30,8 @@ struct ImGuiWindow;
#endif
typedef unsigned int ImU32;
typedef unsigned short ImWchar;
typedef ImU32 ImGuiID;
typedef unsigned short ImWchar; // hold a character for display
typedef ImU32 ImGuiID; // hold widget unique ID
typedef int ImGuiCol; // enum ImGuiCol_
typedef int ImGuiStyleVar; // enum ImGuiStyleVar_
typedef int ImGuiKey; // enum ImGuiKey_
@ -160,7 +160,7 @@ namespace ImGui
IMGUI_API ImDrawList* GetWindowDrawList(); // get rendering command-list if you want to append your own draw primitives.
IMGUI_API ImFont* GetWindowFont();
IMGUI_API float GetWindowFontSize();
IMGUI_API void SetWindowFontScale(float scale); // per-window font scale. Adjust IO.FontBaseScale if you want to scale all windows together.
IMGUI_API void SetWindowFontScale(float scale); // per-window font scale. Adjust IO.FontGlobalScale if you want to scale all windows.
IMGUI_API void SetScrollPosHere(); // adjust scrolling position to center into the current cursor position.
IMGUI_API void SetKeyboardFocusHere(int offset = 0); // focus keyboard on the next widget. Use 'offset' to access sub components of a multiple component widget.
IMGUI_API void SetTreeStateStorage(ImGuiStorage* tree); // replace tree state storage with our own (if you want to manipulate it yourself, typically clear subsection of it).
@ -454,12 +454,9 @@ struct ImGuiIO
float MouseDoubleClickTime; // = 0.30f // Time for a double-click, in seconds.
float MouseDoubleClickMaxDist; // = 6.0f // Distance threshold to stay in to validate a double-click, in pixels.
int KeyMap[ImGuiKey_COUNT]; // <unset> // Map of indices into the KeysDown[512] entries array
ImFont* Font; // <auto> // Font
float FontYOffset; // = 0.0f // Offset font rendering by xx pixels in Y axis.
ImVec2 FontTexUvForWhite; // = (0.0f,0.0f) // Font texture must have a white pixel at this UV coordinate. Adjust if you are using custom texture.
float FontBaseScale; // = 1.0f // Base font scale, multiplied by the per-window font scale which you can adjust with SetFontScale()
bool FontAllowUserScaling; // = false // Set to allow scaling text with CTRL+Wheel.
ImWchar FontFallbackGlyph; // = '?' // Replacement glyph is one isn't found.
ImFont* Font; // <auto> // Font (also see 'Settings' fields inside ImFont structure for details)
float FontGlobalScale; // = 1.0f // Global scale all fonts
bool FontAllowUserScaling; // = false // Allow user scaling text of individual window with CTRL+Wheel.
float PixelCenterOffset; // = 0.0f // Try to set to 0.5f or 0.375f if rendering is blurry
void* UserData; // = NULL // Store your own data for retrieval by callbacks.
@ -693,10 +690,54 @@ struct ImDrawList
// - tool: http://www.angelcode.com/products/bmfont
// - file-format: http://www.angelcode.com/products/bmfont/doc/file_format.html
// Assume valid file data (won't handle invalid/malicious data)
// Handle a subset of parameters.
// - kerning pair are not supported (because ImGui code does per-character CalcTextSize calls, need to turn it into something more stateful to allow kerning)
// Handle a subset of the options, namely:
// - kerning pair are not supported (because some ImGui code does per-character CalcTextSize calls, need to turn it into something more state-ful to allow for kerning)
struct ImFont
{
struct FntInfo;
struct FntCommon;
struct FntGlyph;
struct FntKerning;
// Settings
float Scale; // = 1.0f // Base font scale, multiplied by the per-window font scale which you can adjust with SetFontScale()
ImVec2 DisplayOffset; // = (0.0f,0.0f // Offset font rendering by xx pixels
ImVec2 TexUvForWhite; // = (0.0f,0.0f) // Font texture must have a white pixel at this UV coordinate. Adjust if you are using custom texture.
ImWchar FallbackChar; // = '?' // Replacement glyph is one isn't found.
// Data
unsigned char* Data; // Raw data, content of .fnt file
size_t DataSize; //
bool DataOwned; //
const FntInfo* Info; // (point into raw data)
const FntCommon* Common; // (point into raw data)
const FntGlyph* Glyphs; // (point into raw data)
size_t GlyphsCount; //
const FntKerning* Kerning; // (point into raw data) - NB: kerning is unsupported
size_t KerningCount; //
ImVector<const char*> Filenames; // (point into raw data)
ImVector<int> IndexLookup; // (built)
const FntGlyph* FallbackGlyph; // == FindGlyph(FontFallbackChar)
IMGUI_API ImFont();
IMGUI_API ~ImFont() { Clear(); }
IMGUI_API bool LoadFromMemory(const void* data, size_t data_size);
IMGUI_API bool LoadFromFile(const char* filename);
IMGUI_API void Clear();
IMGUI_API void BuildLookupTable();
IMGUI_API const FntGlyph* FindGlyph(unsigned short c, const FntGlyph* fallback = NULL) const;
IMGUI_API float GetFontSize() const { return (float)Info->FontSize; } // before scale!
IMGUI_API bool IsLoaded() const { return Info != NULL && Common != NULL && Glyphs != NULL; }
// '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.
IMGUI_API ImVec2 CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
IMGUI_API ImVec2 CalcTextSizeW(float size, float max_width, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL) const; // wchar
IMGUI_API 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;
IMGUI_API const char* CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
#pragma pack(push, 1)
struct FntInfo
{
@ -706,15 +747,13 @@ struct ImFont
unsigned short StretchH;
unsigned char AA;
unsigned char PaddingUp, PaddingRight, PaddingDown, PaddingLeft;
unsigned char SpacingHoriz, SpacingVert;
unsigned char Outline;
unsigned char SpacingHoriz, SpacingVert, Outline;
//char FontName[];
};
struct FntCommon
{
unsigned short LineHeight;
unsigned short Base;
unsigned short LineHeight, Base;
unsigned short ScaleW, ScaleH;
unsigned short Pages;
unsigned char BitField;
@ -724,8 +763,7 @@ struct ImFont
struct FntGlyph
{
unsigned int Id;
unsigned short X, Y;
unsigned short Width, Height;
unsigned short X, Y, Width, Height;
signed short XOffset, YOffset;
signed short XAdvance;
unsigned char Page;
@ -739,37 +777,4 @@ struct ImFont
signed short Amount;
};
#pragma pack(pop)
unsigned char* Data; // Raw data, content of .fnt file
size_t DataSize; //
bool DataOwned; //
const FntInfo* Info; // (point into raw data)
const FntCommon* Common; // (point into raw data)
const FntGlyph* Glyphs; // (point into raw data)
size_t GlyphsCount; //
const FntKerning* Kerning; // (point into raw data)
size_t KerningCount; //
int TabCount; // FIXME: mishandled (add fixed amount instead of aligning to column)
ImVector<const char*> Filenames; // (point into raw data)
ImVector<int> IndexLookup; // (built)
IMGUI_API ImFont();
IMGUI_API ~ImFont() { Clear(); }
IMGUI_API bool LoadFromMemory(const void* data, size_t data_size);
IMGUI_API bool LoadFromFile(const char* filename);
IMGUI_API void Clear();
IMGUI_API void BuildLookupTable();
IMGUI_API const FntGlyph* FindGlyph(unsigned short c, const FntGlyph* fallback = NULL) const;
IMGUI_API float GetFontSize() const { return (float)Info->FontSize; }
IMGUI_API bool IsLoaded() const { return Info != NULL && Common != NULL && Glyphs != NULL; }
// '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.
IMGUI_API ImVec2 CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
IMGUI_API ImVec2 CalcTextSizeW(float size, float max_width, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL) const; // wchar
IMGUI_API 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:
IMGUI_API const char* CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width, const FntGlyph* fallback_glyph) const;
};