#include <src/imgui/imgui.h>

Collaboration diagram for ImDrawData:

Public Member Functions
	ImDrawData ()

void	Clear ()

IMGUI_API void	DeIndexAllBuffers ()

IMGUI_API void	ScaleClipRects (const ImVec2 &fb_scale)

Public Attributes
bool	Valid

int	CmdListsCount

int	TotalIdxCount

int	TotalVtxCount

ImDrawList **	CmdLists

ImVec2	DisplayPos

ImVec2	DisplaySize

ImVec2	FramebufferScale

Detailed Description

Constructor & Destructor Documentation

◆ ImDrawData()

ImDrawData::ImDrawData ( )

inline

2484{ Clear(); }

ImDrawData::Clear

void Clear()

Definition imgui.h:2485

Member Function Documentation

◆ Clear()

void ImDrawData::Clear ( )

inline

2485{ memset(this, 0, sizeof(*this)); } // The ImDrawList are owned by ImGuiContext!

Referenced by ImGui::NewFrame().

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◆ DeIndexAllBuffers()

void ImDrawData::DeIndexAllBuffers ( )

{
    ImVector<ImDrawVert> new_vtx_buffer;
    TotalVtxCount = TotalIdxCount = 0;
    for (int i = 0; i < CmdListsCount; i++)
    {
        ImDrawList* cmd_list = CmdLists[i];
        if (cmd_list->IdxBuffer.empty())
            continue;
        new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
        for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
            new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
        cmd_list->VtxBuffer.swap(new_vtx_buffer);
        cmd_list->IdxBuffer.resize(0);
        TotalVtxCount += cmd_list->VtxBuffer.Size;
    }
}

References CmdLists, CmdListsCount, ImVector< T >::empty(), ImDrawList::IdxBuffer, ImVector< T >::resize(), ImVector< T >::Size, ImVector< T >::swap(), TotalIdxCount, TotalVtxCount, and ImDrawList::VtxBuffer.

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◆ ScaleClipRects()

void ImDrawData::ScaleClipRects ( const ImVec2 & fb_scale )

{
    for (int i = 0; i < CmdListsCount; i++)
    {
        ImDrawList* cmd_list = CmdLists[i];
        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
        {
            ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
            cmd->ClipRect = ImVec4(cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y);
        }
    }
}