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Fixed mouse wheel scroll issues, introduced a few weeks ago (#200)

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This commit is contained in:
ocornut 2015-06-19 18:01:13 -06:00
parent e7b43b014b
commit 747999bbaf
1 changed files with 12 additions and 3 deletions
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15
imgui.cpp
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@ -547,6 +547,7 @@ static bool CloseWindowButton(bool* p_opened = NULL);
static void FocusWindow(ImGuiWindow* window);
static ImGuiWindow* FindHoveredWindow(ImVec2 pos, bool excluding_childs);
static void CloseInactivePopups();
static void SetWindowScrollY(ImGuiWindow* window, float scroll_y);
// Helpers: String
static int ImStricmp(const char* str1, const char* str2);
@ -2195,7 +2196,7 @@ void ImGui::NewFrame()
if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse))
{
const int scroll_lines = (window->Flags & ImGuiWindowFlags_ComboBox) ? 3 : 5;
window->ScrollY -= g.IO.MouseWheel * window->CalcFontSize() * scroll_lines;
SetWindowScrollY(window, window->ScrollY - g.IO.MouseWheel * window->CalcFontSize() * scroll_lines);
}
}
}
@ -4028,6 +4029,7 @@ static void Scrollbar(ImGuiWindow* window)
}
// Apply scroll
// It is ok to modify ScrollY here because we are being called in Begin() after the calculation of SizeContents and before setting up our starting position
const float scroll_y_norm = ImSaturate((clicked_y_norm - g.ScrollbarClickDeltaToGrabCenter - grab_h_norm*0.5f) / (1.0f - grab_h_norm));
window->ScrollY = (float)(int)(0.5f + scroll_y_norm * (window->SizeContents.y - window->Size.y));
@ -4374,6 +4376,13 @@ ImVec2 ImGui::GetWindowPos()
return window->Pos;
}
static void SetWindowScrollY(ImGuiWindow* window, float new_scroll_y)
{
window->DC.CursorMaxPos.y += window->ScrollY;
window->ScrollY = new_scroll_y;
window->DC.CursorMaxPos.y -= window->ScrollY;
}
static void SetWindowPos(ImGuiWindow* window, const ImVec2& pos, ImGuiSetCond cond)
{
// Test condition (NB: bit 0 is always true) and clear flags for next time
@ -6933,8 +6942,8 @@ static bool InputTextEx(const char* label, char* buf, size_t buf_size, const ImV
const bool is_ctrl_only = is_ctrl_down && !is_alt_down && !is_shift_down;
if (IsKeyPressedMap(ImGuiKey_LeftArrow)) { edit_state.OnKeyPressed(is_ctrl_down ? STB_TEXTEDIT_K_WORDLEFT | k_mask : STB_TEXTEDIT_K_LEFT | k_mask); }
else if (IsKeyPressedMap(ImGuiKey_RightArrow)) { edit_state.OnKeyPressed(is_ctrl_down ? STB_TEXTEDIT_K_WORDRIGHT | k_mask : STB_TEXTEDIT_K_RIGHT | k_mask); }
else if (is_multiline && IsKeyPressedMap(ImGuiKey_UpArrow)) { if (is_ctrl_down) draw_window->ScrollY -= g.FontSize; else edit_state.OnKeyPressed(STB_TEXTEDIT_K_UP | k_mask); }
else if (is_multiline && IsKeyPressedMap(ImGuiKey_DownArrow)) { if (is_ctrl_down) draw_window->ScrollY += g.FontSize; else edit_state.OnKeyPressed(STB_TEXTEDIT_K_DOWN| k_mask); }
else if (is_multiline && IsKeyPressedMap(ImGuiKey_UpArrow)) { if (is_ctrl_down) SetWindowScrollY(draw_window, draw_window->ScrollY - g.FontSize); else edit_state.OnKeyPressed(STB_TEXTEDIT_K_UP | k_mask); }
else if (is_multiline && IsKeyPressedMap(ImGuiKey_DownArrow)) { if (is_ctrl_down) SetWindowScrollY(draw_window, draw_window->ScrollY + g.FontSize); else edit_state.OnKeyPressed(STB_TEXTEDIT_K_DOWN| k_mask); }
else if (IsKeyPressedMap(ImGuiKey_Home)) { edit_state.OnKeyPressed(is_ctrl_down ? STB_TEXTEDIT_K_TEXTSTART | k_mask : STB_TEXTEDIT_K_LINESTART | k_mask); }
else if (IsKeyPressedMap(ImGuiKey_End)) { edit_state.OnKeyPressed(is_ctrl_down ? STB_TEXTEDIT_K_TEXTEND | k_mask : STB_TEXTEDIT_K_LINEEND | k_mask); }
else if (IsKeyPressedMap(ImGuiKey_Delete)) { edit_state.OnKeyPressed(STB_TEXTEDIT_K_DELETE | k_mask); }