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Simplified ImDrawList system (samples are 20 lines shorter) + merged title bar draw bar.

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This commit is contained in:
ocornut
2014-08-13 11:34:08 +01:00
parent 57ac561ecb
commit ddc7f8b0b0
4 changed files with 78 additions and 110 deletions
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20
imgui.h
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@ -499,19 +499,10 @@ struct ImGuiStorage
// Hold a series of drawing commands. The user provide a renderer for ImDrawList
//-----------------------------------------------------------------------------
enum ImDrawCmdType
{
ImDrawCmdType_DrawTriangleList,
ImDrawCmdType_PushClipRect,
ImDrawCmdType_PopClipRect,
};
// sizeof() == 4
struct ImDrawCmd
{
ImDrawCmdType cmd_type : 16;
unsigned int vtx_count : 16;
ImDrawCmd(ImDrawCmdType _cmd_type = ImDrawCmdType_DrawTriangleList, unsigned int _vtx_count = 0) { cmd_type = _cmd_type; vtx_count = _vtx_count; }
unsigned int vtx_count;
ImVec4 clip_rect;
};
#ifndef IMDRAW_TEX_UV_FOR_WHITE
@ -532,16 +523,15 @@ struct ImDrawList
{
ImVector<ImDrawCmd> commands;
ImVector<ImDrawVert> vtx_buffer; // each command consume ImDrawCmd::vtx_count of those
ImVector<ImVec4> clip_rect_buffer; // each PushClipRect command consume 1 of those
ImVector<ImVec4> clip_rect_stack_; // [internal] clip rect stack while building the command-list (so text command can perform clipping early on)
ImDrawVert* vtx_write_; // [internal] point within vtx_buffer after each add command. allow us to use less [] and .resize on the vector (often slow on windows/debug)
ImVector<ImVec4> clip_rect_stack; // [internal] clip rect stack while building the command-list (so text command can perform clipping early on)
ImDrawVert* vtx_write; // [internal] point within vtx_buffer after each add command (to avoid using the ImVector<> operators too much)
ImDrawList() { Clear(); }
void Clear();
void PushClipRect(const ImVec4& clip_rect);
void PopClipRect();
void AddCommand(ImDrawCmdType cmd_type, int vtx_count);
void ReserveVertices(unsigned int vtx_count);
void AddVtx(const ImVec2& pos, ImU32 col);
void AddVtxLine(const ImVec2& a, const ImVec2& b, ImU32 col);