diff --git a/imgui.cpp b/imgui.cpp index 1eaf0efac732..5d95827b1c88 100644 --- a/imgui.cpp +++ b/imgui.cpp @@ -4214,19 +4214,17 @@ static void CalcResizePosSizeFromAnyCorner(ImGuiWindow* window, const ImVec2& co struct ImGuiResizeGripDef { - const char* StrId; - ImVec2 CornerNorm; + ImVec2 CornerPos; ImVec2 InnerDir; int AngleMin12, AngleMax12; - ImGuiMouseCursor MouseCursor; }; const ImGuiResizeGripDef resize_grip_def[4] = { - { "#RESIZE0", ImVec2(1,1), ImVec2(-1,-1), 0, 3, ImGuiMouseCursor_ResizeNWSE }, // Lower right - { "#RESIZE1", ImVec2(0,1), ImVec2(+1,-1), 3, 6, ImGuiMouseCursor_ResizeNESW }, // Lower left - { "#RESIZE2", ImVec2(0,0), ImVec2(+1,+1), 6, 9, ImGuiMouseCursor_ResizeNWSE }, // Upper left - { "#RESIZE3", ImVec2(1,0), ImVec2(-1,+1), 9,12, ImGuiMouseCursor_ResizeNESW }, // Upper right + { ImVec2(1,1), ImVec2(-1,-1), 0, 3 }, // Lower right + { ImVec2(0,1), ImVec2(+1,-1), 3, 6 }, // Lower left + { ImVec2(0,0), ImVec2(+1,+1), 6, 9 }, // Upper left + { ImVec2(1,0), ImVec2(-1,+1), 9,12 }, // Upper right }; // Push a new ImGui window to add widgets to. @@ -4567,26 +4565,28 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags) // Handle resize for: Resize Grips, Gamepad ImU32 resize_grip_col[4] = { 0 }; const int resize_grip_count = (flags & ImGuiWindowFlags_ResizeFromAnySide) ? 2 : 1; // 4 - const float resize_corner_size = (float)(int)ImMax(g.FontSize * 1.35f, window_rounding + 1.0f + g.FontSize * 0.2f); + + const float grip_draw_size = (float)(int)ImMax(g.FontSize * 1.35f, window_rounding + 1.0f + g.FontSize * 0.2f); + const float grip_hover_size = (float)(int)(grip_draw_size * 0.75f); if (!(flags & ImGuiWindowFlags_AlwaysAutoResize) && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0 && !(flags & ImGuiWindowFlags_NoResize)) { ImVec2 pos_target(FLT_MAX, FLT_MAX); ImVec2 size_target(FLT_MAX, FLT_MAX); // Manual resize grips + PushID("#RESIZE"); for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++) { const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n]; - const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerNorm); + const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPos); // Using the FlattenChilds button flag we make the resize button accessible even if we are hovering over a child window - ImRect resize_rect; - resize_rect.Add(corner); - resize_rect.Add(corner + grip.InnerDir * (float)(int)(resize_corner_size * 0.75f)); + ImRect resize_rect(corner, corner + grip.InnerDir * grip_hover_size); + resize_rect.FixInverted(); bool hovered, held; - ButtonBehavior(resize_rect, window->GetID(grip.StrId), &hovered, &held, ImGuiButtonFlags_FlattenChilds); + ButtonBehavior(resize_rect, window->GetID((void*)resize_grip_n), &hovered, &held, ImGuiButtonFlags_FlattenChilds); if (hovered || held) - g.MouseCursor = grip.MouseCursor; + g.MouseCursor = (resize_grip_n & 1) ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE; if (g.HoveredWindow == window && held && g.IO.MouseDoubleClicked[0]) { @@ -4598,11 +4598,12 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags) { // Resize from any of the four corners // We don't use an incremental MouseDelta but rather compute an absolute target size based on mouse position - ImVec2 corner_target = g.IO.MousePos - g.ActiveIdClickOffset + resize_rect.GetSize() * grip.CornerNorm; // Corner of the window corresponding to our corner grip - CalcResizePosSizeFromAnyCorner(window, corner_target, grip.CornerNorm, &pos_target, &size_target); + ImVec2 corner_target = g.IO.MousePos - g.ActiveIdClickOffset + resize_rect.GetSize() * grip.CornerPos; // Corner of the window corresponding to our corner grip + CalcResizePosSizeFromAnyCorner(window, corner_target, grip.CornerPos, &pos_target, &size_target); } resize_grip_col[resize_grip_n] = GetColorU32(held ? ImGuiCol_ResizeGripActive : hovered ? ImGuiCol_ResizeGripHovered : ImGuiCol_ResizeGrip); } + PopID(); // Apply back modified position/size to window if (size_target.x != FLT_MAX) @@ -4651,9 +4652,9 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags) for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++) { const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n]; - const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerNorm); - window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(window_border_size, resize_corner_size) : ImVec2(resize_corner_size, window_border_size))); - window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(resize_corner_size, window_border_size) : ImVec2(window_border_size, resize_corner_size))); + const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPos); + window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(window_border_size, grip_draw_size) : ImVec2(grip_draw_size, window_border_size))); + window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(grip_draw_size, window_border_size) : ImVec2(window_border_size, grip_draw_size))); window->DrawList->PathArcToFast(ImVec2(corner.x + grip.InnerDir.x * (window_rounding + window_border_size), corner.y + grip.InnerDir.y * (window_rounding + window_border_size)), window_rounding, grip.AngleMin12, grip.AngleMax12); window->DrawList->PathFillConvex(resize_grip_col[resize_grip_n]); } diff --git a/imgui_internal.h b/imgui_internal.h index b3371f5c1a8a..23992c438fd8 100644 --- a/imgui_internal.h +++ b/imgui_internal.h @@ -281,6 +281,7 @@ struct IMGUI_API ImRect void Translate(const ImVec2& v) { Min.x += v.x; Min.y += v.y; Max.x += v.x; Max.y += v.y; } void ClipWith(const ImRect& clip) { if (Min.x < clip.Min.x) Min.x = clip.Min.x; if (Min.y < clip.Min.y) Min.y = clip.Min.y; if (Max.x > clip.Max.x) Max.x = clip.Max.x; if (Max.y > clip.Max.y) Max.y = clip.Max.y; } void Floor() { Min.x = (float)(int)Min.x; Min.y = (float)(int)Min.y; Max.x = (float)(int)Max.x; Max.y = (float)(int)Max.y; } + void FixInverted() { if (Min.x > Max.x) ImSwap(Min.x, Max.x); if (Min.y > Max.y) ImSwap(Min.y, Max.y); } bool IsFinite() const { return Min.x != FLT_MAX; } ImVec2 GetClosestPoint(ImVec2 p, bool on_edge) const {